Silkworm Rearing Technology
Project No.: CSM-01
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of rearing of bivoltine silkworm pure races in Govt. Silk Farm.
Personnel : Ganesh NK, Ramakrishne Gowda, Ramaswamy
Project Period :1973-1976
Objectives :Supply of P1 seed and also to demonstrate the new technique of bivoltine silkworm rearing.
Results/Recommendations :In Govt. Silk Farm, Hindignal a total quantity of 3077 dfls were brushed to produce 3,92,685 cocoons. The average yield/100dfls is 12,760 cocoons. At Govt. Silk Farm, Lalgondahally, a total quantity of 7087 dfls were brushed to harvest 7,13,645 cocoons. The average yield is 10,070 cocoons/100 dfls.
Source of Information :Annual Report :1973-76
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of rearing P1 pure races of KA and NN6D with the selected seed rearers.
Personnel : Ganesh NK, Viswanath K, Vijayaraghavan K
Project Period :1973-1974
Objectives :Supplementing the supply of pure races of KA and NN6D for the bivoltine hybrid programme, P2 seeds were supplied to selected seed rearers.
Results/Recommendations :A total quantity of 17,545 dfls were supplied to the selected rearers in Kolar zone. The harvest data were collected for 13,045 dfls and the yield of pure races is ranging from 16,000 to 25,900 for 100 dfls. The overall average yield works out to 20,920 cocoons for 100 dfls with a single cocoon weight of 1.3 gm. A total quantity of 27,20,000 cocoons of pure races of KA and NN6D have been harvested by the selected seed rearers for the preparation of bivoltine hybrids.
Source of Information :Annual Report :1973-74
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of bivoltine hybrid rearing with the sericulturists.
Personnel :Ganesh NK, Viswanath K, Vijayaraghavan K
Project Period :1973-1974
Objectives :Demonstration of bivoltine silkworm rearing.
Results/Recommendations :The average yield for 100 dfls, for the whole year works out to 34.5kgs. With an average of 690 cocoons/kg, the individual cocoons wt. thus works out to 1.4 gm. As compared to this, the yield of multivoltine hybrids, is of the order 20-25 kgs, thus the rearer is assured of twin benefits of higher yields in addition to superiority quality cocoons which fetch higher prices.
Source of Information :Annual Report -1973-74
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of the economic potentialities of the bivoltine silkworm rearing with rearers.
Personnel : Narasimhanna MN, Ganesh NK
Project Period :1973-1975
Objectives : Obtaining the overall annual income of a rearer by rearing bivoltine hybrids.
Results/Recommendations :The data on the economics of rearing of Nanjappa, a rearer in Melur in Kolar district was collected. With a garden of 1.25 acres, he reared 1,835 dfls and harvested 731 kgs of cocoons. This works out to 39.8 kgs of cocoons/100 dfls and the rate was Rs. 1,425/100 dfls. His net profit is Rs. 20,042 for 1.25 acres i.e., Rs.40,000/ha/yr.
Source of Information :Annual Report :1973-74
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of the technique of bivoltine silkworm rearing in producing P1 seed in Govt. Silk Farms of Channapatna zone.
Personnel : Narasimhanna MN, Parthasarathy BS, Nagaraj CS
Project Period :1973-1976
Objectives :To demonstrate the new technique of rearing bivoltine pure race.
Results/Recommendations : For demonstration purpose the Extension centre selected three Govt. Silk Farms at Channapatna, Kanva and Maddur. The average quantity of cocoons obtained at these three farms are in the order of 4,700, 19,602 and 23,800.
Source of Information :Annual Report :1973-76
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of bivoltine silkworm rearing with the sericulturists.
Personnel : Parthasarathy BS, Nagaraj CS, Aradhya NSC
Project Period :1973-1974
Results/Recommendations :The overall average yield for 100 dfls works out to 26,584 cocoons by number and 40.23 kgs by weight. The quantity of the cocoons was superior with 1.3 to 1.5 g of cocoon wt. and the shell wt. ranging from 0.26-0.28 gms. The net average income for rearing 100 dfls worked out to Rs 1,383-75 Ps. The rearers in this area are fully convinced of the benefits of bivoltine hybrid rearing the there is a constant demand for the bivoltine hybrid laying in this area.
Source of Information :Annual Report :1973-74
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of rearing of multivoltine pure races in Govt. Silk Farm, Bidadi.
Personnel : Narasimhanna MN, Parthasarathy BS
Project Period :1973-1974
Objectives :Collecting the data about the behaviour of the three pure multivoltine races namely PA5, AP1 and AP5 evolved by this Institute.
Results/Recommendations :The performance of PA5, AP1 and AP5 is superior to local race for all the seasons. The yield in PA5, AP1 and AP5 is 26,787, 29,215 and 30,585 respectively for 100 dfls. The silk content of these races continued to be superior to Pure Mysore by 3-5%. Rearing of these races in Govt. Silk Farm, Bidadi is continued and it is programmed to introduce this in the field as hybrids with suitable male components.
Source of Information :Annual Report :1973-74
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of the new technique of bivoltine silkworm rearing.
Personnel : Ganesh NK, Vijayaraghavan K, Raje Urs S
Project Period :1974-1975
Results/Recommendations : The yield in multivoltine hybrids is only 22.5 kgs for 100 dfls and sold at far lower rate as compared to bivoltine hybrids. The average return by rearing 100 dfls of bivoltine hybrids is Rs.990 while it is Rs.404 to Rs.495 in multivoltine hybrids.
Source of Information :Annual Report-1974-75
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of the economics of bivoltine hybrid rearing with private rearers.
Personnel : Narasimhanna MN, Viswanath K, Nagaraj CS
Project Period :1974-1975
Objectives :To demonstrate the economics of bivoltine hybrid rearing.
Results/Recommendations :The extension staffs were able to persuade Thammiappa to switch over to bivoltine hybrid rearings. During 1974-75 he reared 1,300 bivoltine hybrids spread over in five crops. He harvested a total quantity of 552 kgs of cocoons, which was sold at Rs.34-50/kg. He realized a total amount of Rs.20,522. His rearing expense were Rs.3,924 He made a net profit of Rs.16,297.
Source of Information :Annual Report-1974-75
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Project No.: CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing of Hosa Mysore at Government Silk Farm, Bidadi.
Personnel : Viswanath K, Nagaraj CS
Project Period :1974-1977
Results/Recommendations : 50 Hosa Mysore race dfls were issued to the Govt. silk farm, Bidadi and 500 Hosa Mysore dfls were distributed to the selected sericulturists of Maiganahalli, a village near Bidadi in Mysore seed area. The yield/100 dfls at the Govt. Silk Farm, Bidadi was 26,664 cocoons in AP5 and 22,500 cocoons in PA13. The rearers of Maiganahalli village harvested good crops and the average yield/100 dfls ranging from 20,796 to 27,440 cocoons.
Source of Information :Annual Report-1974-77
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of bivoltine rearing in the field.
Personnel : Narasimhanna MN, Vijayaraghavan K, Ananthanarayan S
Project Period :1974-1975
Results/Recommendations : The result shows that 9065 dfls yielded 2606 kgs. of cocoons bringing the overall average yield to 29.2 kgs/100 dfls, with an average of 695 cocoons/kg. The average single cocoon weight works out to 143 cgms along with an average single shell weight of 25 cgms, the average shell percentage is 17.3. It is to be recorded that this yield was under conditions of extremely poor quality leaves obtained from gardens which have not been regularly manured or sufficiently irrigated.
Source of Information :Annual Report-1974-75
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Collection of data on multivoltine hybrid rearings in the field for comparative study.
Personnel : Vijayaraghavan K, Ananthanarayan S
Project Period :1974-1975
Results/Recommendations : A total of 7,912 dfls brushed during the period, yielded a quantity of 2340 kgs of cocoons at an average of 29.6 kgs/100 dfls.
Source of Information :Annual Report-1974-75
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Establishment of bivoltine seed area and performance of bivoltine pure races.
Personnel : Benchamin KV, Veeraiah TM, Thyagaraja BS
Project Period :1975-1977
Results/Recommendations :
· At present there are about 480 sericulturists with 450 acres of mulberry spread over in about 105 villages in Anekal taluk.
· 2.26 lakhs dfls of bivoltine pure races were reared in the seed zone. Out of 2.26 lakhs of bivoltine dfls KA was 1,11,000, NN6D 48,000, NB4D2 64,000 and the balance was that of new races. Among three races both KA and NB4D2 have behaved better than NN6D, not only with respect to yield but also the economic characters.
Source of Information :Annual Report-1975-77
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Survey of new area for introduction of bivoltine.
Personnel : Benchamin KV, Raghavendra M, Krishnamurthy KV
Project Period :1975-1979
Objectives : To study the possibility of bringing the farmers to sericulture.
Results/Recommendations : As a result of intensive extension work, mulberry acreage in Gowribidanur, Bagepalli and Gudibanda taluks increased from 140 acres in 1975 to 3,276 acres in 1979, with 3,376 rearers spread over in 216 villages. The average yield obtained by these sericulturists worked out to 32.8 g/100 dfls. Rate per kg of cocoons and return for 100 dfls was Rs.29.53 and Rs.964.20 respectively.
Source of Information :Annual Report-1975-79
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Production of bivoltine hybrids.
Personnel : Ganesh NK, Benchamin KV, Raje Urs S
Project Period :1975-1976
Objectives :To convince the sericulturists about the advantage of bivoltine rearing.
Results/Recommendations : The production of bivoltine hybrids was 4.15 lakhs. The male moths from the bivoltine were used for preparation of CB layings with Mysore race, after preparing bivoltine layings.
Source of Information :Annual Report-1975-76
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Distribution of bivoltine hybrids in the field.
Personnel : Narasimhanna MN, Nagaraj CS
Project Period :1975-1979
Results/Recommendations :A quantity of 6,68,097 dfls have been distributed to the field and harvest data have collected for 4,55,630 dfls. The average yield was 36.485 kg/100 dfls and the average rate was Rs.29.59/kg.
Source of Information :Annual Report-1975-79
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Adoption of village for demonstrating the advantage of bivoltine hybrid rearings.
Personnel : Narasimhanna MN, Nagaraj CS, Chandrashekara Aradhya
Project Period :1975-1977
Objectives : To demonstrate the advantages of bivoltine hybrids over multivoltine hybrids.
Results/Recommendations : The three villages viz., Vondaraguppe, Ganal and Sadalalu in Channapatna taluk, Kanakapura taluk and Maddur taluk were adopted for the demonstration purpose. The comparative data is collected with regard to the performance of 24,549 bivoltines and 41,838 multivoltine hybrids dfls. The average yield/100 dfls in bivoltine and multivoltine hybrids is 33 and 21 kgs respectively.
Source of Information :Annual Report-1975-77
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of the advantage of the rearing of silkworms from loose eggs in Channapatna division.
Personnel : Sitarama Iyengar MN, Parthasarathy BS, Puttaswamigowda
Project Period :1975-1976
Objectives :To study the behaviour of the loose eggs and the performance of silkworms that hatch from the loose eggs.
Results/Recommendations :A quantity of 492 issued to 10 rearers in Channapatna area. It is observed that the yield is as much as 19.2 kgs for 10 gms or 23.52 kgs for 20,000 silkworm eggs which is equal to the standards of Japan. Further 40,000 eggs/100 layings the yield works out to 47 kgs as compared to 32-36 kgs. The higher yield is attributed to isolation of unfertilized eggs, uniformity in hatching and high percentage of hatching.
Source of Information :Annual Report-1975-76
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new techniques of rearing in rainfed areas of the south zone.
Personnel : Baktavatsalu K
Project Period :1975-1976
Objectives : Organizing of effective demonstration of the new techniques of rearing in the villages and inducing the rearers to the improved techniques.
Results/Recommendations :At present 28 villages are covered benefiting individually about 61 rearers and the response is very satisfactory in the villages.
Source of Information :Annual Report-1975-76
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Popularizing the improved strains of multivoltine hybrids.
Personnel : Baktavatsalu K
Project Period :1975-1976
Objectives : To study the advantages of multivoltine hybrids.
Results/Recommendations : Against an average yield of 22 kgs for 100 dfls in traditional combinations, an average yield of 33 kgs was obtained for Hosa Mysore combinations. The quality of the cocoons was superior and the total returns much higher in the multivoltine hybrids as compared to the traditional combinations.
Source of Information :Annual Report-1975-76
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Introduction of bivoltine rearings and new technique of rearing.
Personnel : Venugopala Pillai S, Vijayaraghavan K
Project Period :1975-1976
Objectives : To improve the quality and quantity of cocoon crops in Coimbatore area.
Results/Recommendations : Even though there is no significant difference between the yields of multivoltine hybrids and bivoltine hybrids, the net return for multivoltine hybrids is of the order of Rs.667 for 100 dfls, while the same for bivoltine hybrids is over Rs.1000. There is an increasing demand for bivoltine hybrids. The study has also revealed that the bivoltines can be successfully reared through out the year.
Source of Information :Annual Report-1975-76
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new techniques of rearing under rainfed garden areas of south zone.
Personnel : Krishnaswami S, Venugopala Pillai S, Gangaiah B
Project Period :1976-1979
Results/Recommendations : Sericulturists were contacted and brought to the Research and Demonstration mulberry farm and rearing house. They were explained the different aspects of improved methods of mulberry cultivation and silkworm rearing as advocated by CSRTI, Mysore.
Altogether 979 sericulturists have been served in 123 villages of Mugur, Kollegal and Chamarajanagar area.
Source of Information :Annual Report: 1976-77
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Extension of technical guidance in the improved technique of silkworm rearing and package of practices for mulberry cultivation.
Personnel :Baktavatsalu K, Vijayaraghavan K
Project Period :1976-1980
Results/Recommendations :
· 311 rearers spread in about 230 villages have been benefited by this project since its inception. Farmer's were advised constantly on proper manuring schedules for their plantation mulberry plots were also maintained by the centre for extension demonstration, timely pruning of plantations and timely harvest of crops.
· About 5 lorry loads of mulberry cuttings were supplied to various institutions and farmers. Suggestions were also given to the farmers about the control of pests and diseases of mulberry.
Source of Information :Annual Report: 1976-80
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the growth and health of silkworm in relation to cocoon crop and yield-Some observations on the egg characteristics of two popular bivoltine races viz., KA and NB4D2.
Personnel :Krishnaswami S, Singh K, Raghuraman R, Geethadevi RG
Project Period :1977-1978
Objectives :To compare the physical characteristics of eggs of NB4D2 with KA.
Results/Recommendations :The data reveal that KA eggs are significantly bigger and heavier than NB4D2. Egg shell is heavier in KA. However, the yolk content is found to be more in NB4D2 eggs.
Source of Information :Annual Report: 1977-78
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technique of rearing with sericulturists.
Personnel : Benchamin KV, Suryanarayan Setty, Magadum SB
Project Period :1977-1981
Objectives : To give the correct methods to be adopted in new technique of rearing to the sericulturists.
Results/Recommendations : A total of 137 sericulturists were benefited under this project. A total of 24,648 dfls were covered and an overall average yield of 45.4 kg/100 dfls were obtained. On the other hand in the traditional method of rearing, average yield was 36.9 kgs/100 dfls.
Source of Information :Annual Report: 1977-81
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Guiding the new rearers about the improved technology of rearing.
Personnel : Parthasarathy BS, Viswanatha Kannantha, Sindagi SS
Project Period :1977-1979
Objectives : To understand the advantages of new methods of silkworm rearing.
Results/Recommendations : The improved technology of silkworm rearing with special emphasis on chawki rearing was imparted to the new rearers and also to the rearers who lost their crops due to lack of knowledge regarding proper methods of rearing.
Source of Information :Annual Report: 1977-79
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of the benefits of the chawki rearing technology.
Personnel : Parthasarathy BS, Viswanatha Kannantha
Project Period :1977-1978
Objectives : To demonstrate the rearers about the proper chawki rearing technology.
Results/Recommendations : An average yield of 47.4 kg and 31.1 kg for 100 dfls was obtained in chawki worms distribution and direct layings distribution respectively. The yield difference of 16 kg fetched Rs.360 more in the chawki worm distribution. Thus the importance of chawki worm rearing was demonstrated to the sericulturists.
Source of Information :Annual Report: 1977-78
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the growth and health of silkworm in relation to cocoon crop and yield - Studies on the suitability of different coloured paraffin paper for silkworm rearing.
Personnel :Krishnaswami S, Singh K, Raghuraman R, Geethadevi RG
Project Period :1977-1978
Objectives :To assess the suitability of paraffin paper for chawki silkworm rearing.
Results/Recommendations :Brown paraffin coated paper gives better results for most of the characters considered in both the races. Flimsy blue and polythene white paper were found loosing shape under humid conditions and become soggy.
Source of Information :Annual Report : 1977-78
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the growth and health of silkworm in relation to cocoon crop and yield-Studies on the effect of frequency and methods of rearing bed cleaning.
Personnel :Krishnaswami S, Singh K, Raghuraman R, Geethadevi RG
Project Period :1977-1978
Objectives :To study the effect of frequency and methods of cleaning.
Results/Recommendations :No significant differences between or among treatment batches in any respect. It was however observed that net cleaning comparatively takes much less time.
Source of Information :Annual Report : 1977-78
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Silkworm rearing-Rearing for seed supply to the field.
Personnel : Venugopala Pillai S, Bhat DV
Project Period :1978-1981
Results/Recommendations : The hatching percentage of various breeds ranged from 75-97% and the cocoon yield was between 36 and 54 kg/100 dfls with single cocoon weight ranging from 1.5 to 1.8 gm.
Source of Information :Annual Report: 1978-81
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of improved technique of chawki rearing.
Personnel : Choudhury PC, Ashok Babu
Project Period :1978-1979
Objectives :To demonstrate the importance of proper care during the chawki rearing for the prevention of diseases, resulting in proper development of the larvae and successful crop.
Results/Recommendations :The chawki rearing was demonstrated following the improved methods of rearing young age silkworms and the 3rd age worms were distributed to the rearers. The average yield/100 dfls was 49 kg and 43 kg for bivoltines and improved multivoltines respectively as against 39 kg and 36 kg respectively for the layings issued to rearers directly.
Source of Information :Annual Report: 1978-79
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Farmer's training in improved techniques of rearing and package of practices for mulberry cultivation.
Project Period :1978-1979
Results/Recommendations :12 volunteer farmers are being trained for one month in improved techniques of silkworm rearing and package of practices for mulberry in order to establish their own sericultural farms.
Source of Information :Annual Report: 1978-79
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Chawki Rearing Centres.
Personnel : Ananthanarayan S, Krishnamurthy KN
Project Period :1978-1980
Objectives :To coach the rearers about the proper chawki rearing techniques.
Results/Recommendations :1,35,805 dfls were brushed in different chawki centres of the taluk. An average yield of 28.100 kg was obtained with CRC brushing as against 17.500 kg for direct brushing.
Source of Information :Annual Report: 1978-80
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of rearing.
Personnel : Madhava Rao YR, Syed Samiulla, Baktavathsala Pillai K
Project Period :1978-1979
Objectives :To demonstrate new technology of rearing.
Results/Recommendations :Demonstration of New technology of rearing was taken up at three villages and gave yields ranging between 43 to 46 kg/100 dfls reared as compared to the traditional rearing.
Source of Information :Annual Report: 1978-79
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing of chawki worms, distribution and follow up.
Personnel : Madhava Rao YR, Syed Samiulla, Baktavathsala Pillai K
Project Period :1978-1980
Results/Recommendations :Chawki rearings were conducted both at adopted villages and other villages and regular follow-up of the crops was made 16,279 dfls were reared by 33 rearers. Average yield under demonstration was 40.7 kg/100 dfls compared to 28.8 kg in traditional rearings. The corresponding rates as per kg of cocoons was Rs.30.06 and Rs.26-25 respectively.
Source of Information :Annual Report: 1978-80
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Intensive demonstration of the new technology and the adoption of villages.
Personnel :Parthasarathy BS, Sathyanarayana Murthy N
Project Period :1978-1982
Objectives :To guide the rearers in the new methodology and impress them about rearing bivoltine hybrids and its economic benefits.
Results/Recommendations :
· The extension centre and its sub-unit at Yelandur adopted 5 villages, where 54 sericulturists were covered and 5,210 bivoltine hybrid layings were issued which yielded an average of 31.020 kg/100 dfls.
· Field data was also collected for 43,615 dfls of multivoltine and 42,525 dfls of traditional races for comparison. The rearings of bivoltine recorded an overall economic benefit of Rs.594.30 of Rs.1,088.80/100 dfls over multivoltines and traditional races respectively.
Source of Information :Annual Report: 1978-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of Chawki rearing.
Personnel : Parthasarathy BS, Raghavendra M, Sathyanarayana Murthy N
Project Period :1978-1983
Results/Recommendations :The centre brushed 11,160 dfls reared upto 2nd moult and supplied 3rd age silkworms to 134 sericulturists of Chamarajanagar and Yelandur taluks. Data collected for 8,965 dfls indicated an average yield of 30 kg/100 dfls.
Source of Information :Annual Report: 1978-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing.
Personnel : Ahmedulla Shariff, Rajan RK, Beeram NM
Project Period :1978-1983
Objectives :To educate the rearers in the new technology of silkworm rearing.
Results/Recommendations :Demonstration rearings were conducted in four sericultural villages. A total quantity of 500 dfls were reared which gave an average yield of 40.8 kg/100 dfls and an average rate of Rs.50.13/kg.
Source of Information :Annual Report: 1978-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :P3 Rearings.
Personnel : Venkataramu CV, Nagaraj B, Prabhakar CJ
Project Period :1978-1979
Results/Recommendations :
· KA: Performance of KA showed an overall increase of 3.8% in eggs/laying, 33% ERR by number, and 34.7% ERR by weight.
· NB4D2: An overall performance of 12.91% in eggs/laying, 51.5% ERR by number and 47.9% ERR by weight.
· NB2C1: Number of eggs/laying was 528, ERR was 7,008 by number, average yield of 29,397 cocoons by number.
· NB4D1: 469 eggs/laying, ERR was to an extent of 7,733 by number and 12,677 by weight.
· NB2C1 x NB4D2: The cocoon yield was 67.160 kg, single cocoon weight, shell weight and shell percentage were 1.476 g, 0.324 g and 21% respectively.
Source of Information :Annual Report: 1978-79
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Sericulture.
Personnel :Krishnaswami S, Vijayaraghavan K, Nehru CR
Project Period :1978-1981
Objectives :To study the cultivation of mulberry and rearing performance of mulberry silkworms under Trivandrum condition.
Results/Recommendations :An average yield of 45.8 kg/100 dfls was obtained. The average single cocoon weight, shell weight and shell percentage for the farm rearings were 1.52 gm, 0.226 gm and 14.7% respectively. The cocoons fetched an average rate of Rs.25.70/kg.
Source of Information :Annual Report: 1978-81
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Programme of supply of chawki worms to sericulturists.
Personnel : Sapru ML, Suryanarayana Shetty
Project Period :1979-1982
Objectives :Demonstration of the economic potentialities of sericulture with new technology.
Results/Recommendations :Four villages were adopted namely Avathi, Channahally, Channarayapatna and Gowribidanur. A total quantity of 66,524 dfls of new bivoltine hybrids were chawki reared and distributed to the sericulturists. An average yield of 44 kgs/100 dfls were obtained. Under this project a total number of 250 rearers were benefited.
Source of Information :Annual Report:1979-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing performance in reciprocal crosses of multivoltine x bivoltine combination.
Personnel :Jolly MS, Benchamin KV, Benjamin DAI
Project Period :1980-1982
Objectives :To evaluate the use of combination of multivoltine as the female parent and bivoltine as the male parent for commercial rearing.
Results/Recommendations :It is found that the use of bivoltine hybrids is more effective and desirable. The bivoltine hybrids will have a better performance in the grainages with respect to emergence, couplings, long preservation of moths and repeated mating over pure bivoltine races. The reciprocal crosses are not desirable for commercial rearing over the current system where multivoltine is always used as the female parent.
Source of Information :Annual Report:1980-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing Technology-Efficiency of each feed in 4 feed/day system.
Personnel : Jolly MS, Benchamin KV, Raghuraman R
Project Period :1980-1981
Objectives :To study the efficiency of each feed in four feed per day system in silkworm.
Results/Recommendations :
· The optimum frequency of feed is 4 times/day. Less than this found to adversely affect the rearing behaviour and quality of cocoons.
· Of all the feeds, the one at 10 pm is found to be more effective. Missing of this feed affect all characters adversely. Though all the feeds are important, missing of feed at 10 am was found less detrimental.
Source of Information :Annual Report:1980-81
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Experimental observations on the crop pattern of various races-Studies on the probable causes of high pupal mortality in silkworm Bombyx mori L.
Personnel : Venugopala Pillai S, Bhat DV, Ranganath BK
Project Period :1980-1981
Objectives :Study on the crop pattern of various breeds under different atmospheric and nutritional conditions.
Results/Recommendations :Wide temperature fluctuation in the 4th and 5th instars has a detrimental effect on the pupation rate. Atmospheric conditions available from the spinning period to the cocoon storage showed a close relation in determining the mortality rate. It also indicated that some of the breeds were sensitive to wide fluctuation in temperature especially during 3rd, 4th and 5th instars selective feeding during bed atmospheric conditions could minimize the mortality to a great extent.
Source of Information :Annual Report:1980-81
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing with adopted rearers.
Personnel :Viswanath Kannantha, Sindagi SS
Project Period :1980-1983
Objectives : To demonstrate the new technology of silkworm rearing to the selected rearers.
Results/Recommendations :A quantity of 41,671 dfls were distributed to the adopted rearers. The average yield for 100 dfls was 31.346 kg with an average rate of Rs.53.76 returning of Rs.1,685.42 for 100 dfls reared.
Source of Information :Annual Report:1980-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of improved technique of rearing.
Personnel : Geetha Devi RG, Sampath C, Bhakthavathsala Pillai K
Project Period :1980-1983
Objectives :To demonstrate the research based new technology right from incubation of seed to the final harvesting of cocoons.
Results/Recommendations :The demonstrations were conducted exclusively with bivoltines. An average yield for 100 dfls was 52 kg and return for 100 dfls was Rs.2,496.
Source of Information :Annual Report:1980-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Performance in adopted villages.
Project Period :1980-1981
Objectives :Intensive demonstration of new technology of rearing in adopted villages.
Results/Recommendations :An average yield of 38.5 kgs/100 dfls was obtained in five villages showing an increase of 9 kgs/100 dfls over non-adopted rearers.
Source of Information :Annual Report:1980-81
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Chawki rearing activities.
Personnel : Biram Saheb NM
Project Period :1980-1983
Results/Recommendations :A chawki rearing unit brushed a quantity of 600 dfls and 3rd age worms distributed to the sericulturists. The crops were regularly supervised by the extension staff and as a result the average yield of 47.625 was obtained which were significantly very much superior over the crop where no such guidance was offered.
Source of Information :Annual Report:1980-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of silkworm rearing technology-Studies on the improvement of rearing technology.
Personnel :Pillai SV, Geetha Devi RG, Benjamin DAI, Meera Verma
Project Period :1980-1984
Objectives :
Results/Recommendations :Restricted feeding has prolonged the larval duration and reduced the larval weight by 47% under one feeding, by 13% under three feeding regime. It is also observed that the larvae kept under restricted feeding level when provided with normal four feedings recovered substantially in various characters. Overall results showed that the larvae reared with 2-3 feeds during young age followed by 4 feeds/day in later stages improved in all economic characters.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of silkworm rearing technology- Effect of nylon net with different mesh sizes on rearing silkworm.
Personnel :Geetha Devi RG, Banjamin DAI, Meera Verma
Project Period :1980-1984
Objectives : To study the effect of different mesh size nylon nets on rearing performance of silk worm.
Results/Recommendations :Mesh size did not influence the cocoon yield.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing Technology-Further study on bed spacing during silkworm rearing in the 5th age.
Personnel : Jolly MS, Benjamin DAI, Benchamin KV
Project Period :1981-1983
Objectives :For assessment of appropriate rearing space for various silkworm breeds
Results/Recommendations :360 sq.ft/100 dfls was deal for multi x bivoltine hybrids whereas 480 sq.ft was ideal for bivoltine hybrids.
Source of Information :Annual Report:1981-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Adoption of villages and popularization of improved technology of bivoltine silkworm rearing-Performance of chawki reared bivoltine silkworms in Mugur and Hosakote (Nanjangud taluk).
Project Period :1981-1982
Objectives :Performance of bivoltine chawki silkworms in adopted villages.
Results/Recommendations :A total of 6,465 dfls of bivoltine hybrids were brushed and chawki rearing was done upto 2nd moult and Mugur and Hosakote centres. The worms were distributed to farmers. An average yield of 36.2 kgs/100 dfls was recorded. A total of 38 rearers spread over in 5 villages were benefited by this programme.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Adoption of villages and popularization of improved technology of bivoltine silkworm rearing-Performance of complete rearings in an unit area (Mugur).
Project Period :1981-1982
Objectives :Comparative rearing performance of two selected unit area
Results/Recommendations :To get a clear picture for the comparative rearing performance, two unit areas were selected viz., Mugur and Hosakote, wherein the seasonal data for improved and traditional crosses were collected. The improved crosses yielded an average 26.7 kgs/100 dfls while traditional crosses yielded 18.9 kgs/100 dfls on an average.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing performance of rejuvenation batches (PPC Dharmapura).
Project Period :1981-1982
Objectives :To study the rearing performance of rejuvenated batches.
Results/Recommendations :An average highest yield/100 dfls of 56.480 kgs was recorded in NB7C1 which was followed by 50.20 kg/100 dfls for NB18R1. The cocoons of the rejuvenation batches were utilized to prepare hybrid layings and the layings were supplied to CSR&TI, Extension centres of Lalgondahally, K.P. Doddi and Chamarajanagar for further field evaluation.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : Demonstration Rearing (PPC Dharmapura).
Project Period :1981-1982
Results/Recommendations :A total quantity of 755 dfls were distributed under demonstration rearings and nine rearings were conducted. The maximum yield recorded was 58.600 kgs during the season Dec'81-Jan'82.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Adotption of villages of rearers for rearing (PPC Dharmapura).
Project Period :1981-1982
Results/Recommendations :
· Under adopted rearings, a quantity of 6,450 dfls were distributed to 42 rearers in 24 villages.
· A quantity of 1,985 were distributed during the year under general distribution. Average yield/100 dfls was 37,920 kgs.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing with sericulturists.
Personnel : Mariswamy N, Shivakumar GR, Prasannakumar K
Project Period :1981-1982
Results/Recommendations :The extension centre conducted 12 demonstration rearings with a total of 1,325 dfls. Average yield was found 47.8 kgs/100 dfls reared.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of rearing in villages.
Project Period :1981-1982
Objectives :To popularize the new technology of silkworm rearing.
Results/Recommendations :To translate the new technologies, the Extension centre conducted demonstration rearing utilizing 2,728 dfls covering 29 sericulturists in 27 villages. These rearings have given an average yield of 33.60 kg/100 dfls.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Chawki rearing centre activities (PPC Dharmapura).
Project Period :1981-1982
Results/Recommendations :A chawki rearing centre was started at Ratnapuri. A total quantity of 8,880 dfls of bivoltine hybrids were brushed in the CRC and were distributed to farmers. A total number of 75-80 rearers were benefited during the year.
Source of Information :Annual Report:1981-82
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Comparative studies on performance of bivoltine, multivoltine and chawki reared worms in the adopted villages. (RSRS, Salem)
Personnel :Vijayaraghavan K, Sampath C, Das PK
Project Period :1981-1982
Objectives : To study the performance of bivoltine, multivoltine and chawki reared worms in the adopted villages.
Results/Recommendations :1075 dfls of bivoltine hybrids and 7915 dfls of chawki reared worms were distributed to rearers in adopted villages. The chawki reared worms gave an average yield of 34.6 kg/100 dfls whereas directly distributed layings gave an average yield of 32.4 kg/100 dfls.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the appropriate spacing levels in the rearing bed.
Personnel :Benchamin KV, Benjamin DAI
Project Period :1982-1983
Results/Recommendations :For obtaining an effective rearing results multi x bivoltine hybrids require 360 sq.ft./100 dfls while bivoltine hybrids require 480 sq.ft. area in the rearing beds.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : Effect of feeding methods on cocoon crop.
Personnel: Venugopala Pillai S, Geetha Devi RG, Bejamin DAI, Meera Verma
Project Period :1982-1987
Objectives :Assessment on the effect of different quality of leaf on the cocoon crop results.
Results/Recommendations :Results indicated that 3 feeds/day in young age followed by 4 feeds/day is as good as 4 feeds/day throughout the larval period. Regarding the system of feeding, chopped leaf feeding is good for chawki rearing compared to shootlets and whole leaf feeding. In case of shootlets and whole leaf feeds missing percentage of young age larvae is more when compared to chopped leaf feeding.
Source of Information :Annual Report:1982-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of leaf quality (rainfed and irrigated) on the cocoon crop.
Personnel: Venugopala Pillai S, Geetha Devi RG, Bejamin DAI, Meera Verma
Project Period :1982-1983
Objectives :Evaluation of different mulberry cultivation methods on the crop results of silkworms.
Results/Recommendations :The larval period of bi x bi breeds under irrigated leaf feeding had shown a significant reduction i.e., 1 day 12 hr. Larvae fed with irrigated leaves showed improvement in cocoon quality and absolute silk content.
Feeding trials conducted from irrigated and rainfed leaf on multi x bivoltine and bivoltine hybrids revealed that general health of the larvae was better under irrigated leaf treatment. An improvement of 18% in multi x bivoltine and by 20% in bivoltine hybrids were recorded in crop results under irrigated condition.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of leaf quantity on cocoon crop.
Personnel: Venugopala Pillai S, Geetha Devi RG, Bejamin DAI, Meera Verma
Project Period :1982-1985
Objectives :For identification of appropriate feeding levels for optimum crop results.
Results/Recommendations :The study revealed that an increase in quantum of leaf to the tune of 1400 kg per 40,000 larvae has improved the economic characters of the new breeds and reduction in the quantum below the above said level has reduced all economic characters. Hence 1,300-1,400 kg of leaf is recommended.
Source of Information :Annual Report:1982-85
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the performance of cocoon crop spun on different mountages and its reelability.
Personnel: Venugopala Pillai S, Geetha Devi RG, Bejamin DAI, Meera Verma
Project Period :1982-1983
Objectives :Identification of cheap and better rearing equipments for increased efficiency of rearing.
Results/Recommendations :Mounting trials conducted with 11 types of mountages indicated that cocoon formation was better under the bottle brush type. Cocoon characters and absolute silk content were also improved in bottle brush mountage. whereas number of double cocoons, deformed and urinated cocoons was less in Japanese rotary mountage.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the rearing performance of silkworm under different model houses.
Personnel :Venugopala Pillai S, Geetha Devi RG, Benjamin DAI, Meera Verma
Project Period :1982-1983
Objectives :For identification of appropriate rearing house for the use of average farmers in tropical areas.
Results/Recommendations :Comparative rearing trials conducted in 5 model houses revealed that mud house with tile roof showed better overall rearing results, whereas mud house with thatched roof showed better larval weight, cocoon weight, yield and absolute silk content.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : Designing and fabrication of new rearing equipments.
Personnel :Venugopala Pillai S, Geetha Devi RG, Benjamin DAI, Meera Verma
Project Period :1982-1983
Objectives :Identification of cheap and efficient rearing equipments for increased efficiency during rearing work.
Results/Recommendations :Comparative studies with different rearing trays designed with bamboo material showed that bamboo square trays (3 'x 2') and bamboo mats (4' x 3½') gave better results in larval weight, cocoon weight and other characters over control lots.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing.
Project Period :1982-1983
Results/Recommendations :The average yield obtained from these demonstration rearings was 37.95 kg per unit of 100 dfls reared and the corresponding return were Rs.1,687/-
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Chawki rearing activities and their impact.
Project Period :1982-1983
Objectives :To demonstrate the distinct advantages of chawki rearing in a chawki rearing unit.
Results/Recommendations :The chawki rearing activities were centered around Gowribidanur, Devanahalli and Chickballapur taluks. An average yield of 30 kg was recorded for a unit of 100 layings reared.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Chawki rearing activities.
Project Period :1982-1983
Results/Recommendations :A chawki rearing unit brushed a quantity of 600 dfls and the 3rd age worms were distributed to the sericulturists and regularly supervised by the extension staff. As a result, the average yields obtained were of the order of 47,625 which were very much superior over the crop where no such guidance was offered.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing.
Project Period :1982-1983
Objectives :To impress upon the sericulturists the distinct advantages in adopting the new set of practices of silkworm rearing, intensive demonstrations, commencing right from the stage of incubation of seed to final stage.
Results/Recommendations :From demonstration rearings, an average yield of 35.54 kg/unit of 100 dfls was obtained. The corresponding returns were to the tune of Rs.1,832-40.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Chawki worm distribution and follow up action.
Project Period :1982-1983
Objectives :To introduce the concept of chawki rearing and to demonstrate the technology as well as the advantages of systematic and scientific handling.
Results/Recommendations :At Kannampalayam chawki centre and also at Perinaickanpalayam farm 1,428 bivoltine layings were chawki reared and distributed after 2nd age, to 15 rearers and the rearings were followed up subsequently. Average cocoon yield and return/100 dfls recorded was 35 kg and Rs.1,451.20 respectively.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing.
Project Period :1982-1983
Objectives :To popularize the new technology of rearing.
Results/Recommendations :The extension centre conducted 6 demonstration rearings with a total of 540 dfls of bivoltine hybrid. An average yield of 34.38 kg.100 dfls was obtained with a return of Rs.1,832-45. 32 rearers were benefited by this demonstration.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of improved technology of silkworm rearing.
Project Period :1982-1985
Results/Recommendations :Under demonstration of improved technology of silkworm rearing the centre has distributed 7,062 bivoltine dfls and the average yield was 30.5 kg/100 dfls.
Source of Information :Annual Report:1982-85
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing.
Project Period :1982-1983
Objectives :To introduce new technology of silkworm rearing and simultaneously popularize the high yielding silkworm breeds of bivoltine variety.
Results/Recommendations :For these demonstrations, about 816 dfls of bivoltines were utilized and an average yield of 44.5 kg/unit 100 dfls was obtained which fetched a total return of Rs. 2,162.
In addition to these, a small number of farmers were adopted and guided in the appropriate technology of rearing silkworm.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of improved methods of silkworm rearing.
Project Period :1982-1983
Results/Recommendations :The demonstration rearings were conducted in villages and demonstrated the farmers about the use of paraffin papers and foam during chawki rearing and for maintenance of optimum temperature and humidity during rearing.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing.
Project Period :1982-1983
Objectives :To demonstrate new technology of silkworm rearing in different villages of Parbhani district.
Results/Recommendations :As a result of demonstration, the rearers could harvest better yields and as such the sericulture community was very much benefited .A review indicated that prior to application of new technology the yields were discouragingly poor i.e., average 10.7 kg/100 dfls while the results after adoption were an encouraging i.e., 30 kg/every unit of 100 dfls reared.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Demonstration of new technology of silkworm rearing.
Project Period :1982-1983
Objectives :To increase the production of cocoons by adopting new technology of silkworm rearing.
Results/Recommendations :New technology of silkworm rearing was demonstrated at Rajasthan Vidyapeeth, Udaipur. Average yield/100 dfls of multivoltine (Mys x NB18) and bivoltine (NB18 x NB7) were 38.7 and 40 kgs respectively. It was clearly found that bivoltine rearing would give more yield when compared to multivoltine rearing.
Source of Information :Annual Report:1982-83
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : Standardization of chawki rearing for tropical conditions.
Personnel :Geetha Devi RG, Benjamin DAI, Meera Verma
Project Period :1984-1985
Objectives :To design appropriate method for chawki rearing to suit the tropical conditions through various methods of feeding, selection of mulberry varieties and management of rearing environmental conditions.
Results/Recommendations :Chawki rearing was taken up through 2 tests one through moulting test and another through rearing test. Out of 34 varieties, 16 varieties showed high leaf moisture content (80-85%), 93-98% moulting. S799 and Acc.154 varieties were as good as K2, for chawki rearing.
Source of Information :Annual Report:1984-85
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of the quality of leaves for irrigated areas through silkworm rearing.
Personnel :Geetha Devi RG, Benjamin DAI, Meera Verma
Project Period :1984-1985
Objectives :Screening of few more suitable mulberry varieties for irrigated area.
Results/Recommendations :Among the 11 varieties taken for rearing study, RFS-135, ACC-143 showed better rearing performance when compared with K2.
Source of Information :Annual Report:1984-85
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of quality of leaves for rainfed area through silkworm rearing.
Personnel :Geetha Devi RG, Benjamin DAI, Meera Verma
Project Period :1984-1985
Objectives :Screening of suitable mulberry varieties for rainfed areas.
Results/Recommendations :25 varieties of mulberry raised under rainfed conditions were studied for their effect on the behaviour of silkworms and their cocoon crop. A few varieties were identified in improving the survival and economic characters when compared with local.
Source of Information :Annual Report:1984-85
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Leaf moisture preservation methods and their effect on silkworm rearing and cocoon crop production.
Personnel :Geetha Devi RG, Benjamin DAI, Meera Verma, Narasimha Murthy B, Vindhya GS, Bipin Kumar, Gangadhar B, Himantharaj MT
Project Period :1984-1988
Objectives :To find a method to improve and conserve the moisture in the mulberry leaf particularly in adverse seasons.
Results/Recommendations :
· Among the three (wet covering, spraying of water on leaf and dipping the leaf in water) different treatments tried preservation of leaf by sprinkling of water showed 13.8% improvement in the moisture content, when compared to fresh leaf.
· So it is confirmed that sprinkling of water over leaf is easy and showed the maximum improvement in cocoon yield, survival rate and other cocoon characters.
· Covering with wet gunny cloth and spraying of water increased leaf moisture by 7-8%. Chinese method of preservation helped in moisture retention.
Source of Information :Annual Report:1984-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Technology and innovation studies relevant to improved silkworm rearing-Improvement in rearing through proper quantum of feed.
Personnel :Geetha Devi RG, Banjamin DAI, Meera Verma
Project Period :1984-1985
Objectives :
Results/Recommendations :1300-1400 kg leaves/100 dfls has improved the economic characters of new bivoltine and is recommended. Reduction in the quantum of feed has reduced all economic characters.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Technology and innovation studies relevant to improved silkworm rearing-Studies on the effect of different agronomical practices on silkworm rearing and cocoon crop.
Personnel :Geetha Devi RG, Benjamin DAI, Meera Verma
Project Period :1984-1985
Objectives :
Results/Recommendations :Wider spacing of mulberry improves the rearing performance.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on quantitative feed requirement in silkworm breeds.
Project Period :1984-1987
Objectives :To determine the optimum quantitative feed requirement in the current popular silkworm breeds, for maximum reproductive efficiency.
Results/Recommendations :Among the different levels of feed tested, maximum fecundity and reproductive rate were observed at 800 kg level.
Source of Information :Annual Report:1984-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of delayed brushing on silkworm cocoon crop.
Personnel :Geetha Devi RG, Benjamin DAI, Narasimha Murthy B
Project Period :1985-1988
Objectives :To study the effect of delayed brushing on cocoon yield.
Results/Recommendations :The brushing was delayed by 6, 12, 18 and 24 hrs ERR was decreased by 6.14% in 6 hrs 10.4% in 12 hrs, 27.2% in 18 hrs and 33.7% in 24 hrs delayed brushing in NB18 x NB7. In PM x NB18, ERR was decreased by 1.8% in 6 hrs, 4.5% in 12 hrs, 23.4% in 18 hrs and 26.7% in 24 hrs delayed brushing when compared to control.
Source of Information :Annual Report:1985-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of delayed resumption of feed after moult on silkworm cocoon crop.
Personnel :Geetha Devi RG, Benjamin DAI, Narasimha Murthy B
Project Period :1985-1987
Objectives :To study the effect of delayed resumption of feed after each moult on cocoon yield.
Results/Recommendations :ERR was reduced by 15.0%, 18.7%, 31.3% and 34.8% in 6, 12, 18 and 24 hrs delayed resumption respectively in NB18 x NB7. In PM x NB18 ERR was decreased by 11.6, 15.2, 19.7 and 25.8% in 6, 12, 18 & 24 hrs delayed resumption respectively. It shows that bivoltine hybrids were affected to a greater extent than multivoltine hybrids.
Source of Information :Annual Report:1985-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Efficacy of disinfectants in open type of rearing house.
Personnel :Vindhya GS, Bipin Kumar, Gangadhar B
Project Period :1985-1987
Objectives :To study the efficacy of sodium hypochlorite as a disinfectant in open type rearing houses.
Results/Recommendations :4% formalin and 2% Sodium hypochlorite were used as disinfectants for open type of rearing houses. Results indicate that sodium hypochlorite (2%) can also be used as effective as formalin (4%) for disinfection. PM x NB18 and NB18 x NB7 hybrids were used as test materials. Survival rate and cocoon yield were almost same in both the disinfectants.
Source of Information :Annual Report:1985-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Mounting trials with collapsible plastic mountages.
Personnel :Vindhya GS, Bipin Kumar, Gangadhar B
Project Period :1985-1987
Objectives :To study the feasibility of using plastic collapsible mountages and compare its merits/demerits with that of conventional bamboo mountages.
Results/Recommendations :Results indicate that the percentage of urinated cocoon was more in bottle brush mountage compared to plastic collapsible mountage. Whereas there is no significant variation in good cocoon and double cocoon percentage. Plastic collapsible mountages can be used in place of conventional type without many disadvantages.
Source of Information :Annual Report:1985-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of delayed resumption of feed after moult on cocoon yield and reproductive efficiency.
Project Period :1985-1987
Objectives :To study the effect of delayed resumption of feed in different moults on larval growth, cocoon characters and egg production.
Results/Recommendations :The study was carried out with test races, Pure Mysore and KA. A delay of 6 hrs in any moult did not affect the reproductive rate in KA and PM.
Source of Information :Annual Report:1986-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the rearing performance of pure bivoltine races.
Project Period :1985-1986
Objectives :To assess the performance of various silkworm breeds under irrigated conditions reared during different seasons.
Results/Recommendations :418 dfls consisting of KA, NB7 and NB18 were reared covering different seasons. NB7 yielded better cocoon crops with 63.9 kgs/100 dfls (June-July'85), 72.4 kgs/100 dfs, (August-September'85) and 63.1 kg/100dfls (Nov-Dec'85).
Source of Information :Annual Report:1985-86
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Organization of chawki rearing centres in Nilgiris.
Personnel :Chandrashekaraiah, Satyanarayanaraju, Indrajit Singh
Project Period :1985-1986
Objectives :Extending technical support on establishment of mulberry garden and new technology of rearing to the farmers of the Nilgiris region.
Results/Recommendations :A survey was undertaken in Nilgiris and four sericultural pockets were selected i.e., Kathai, Maskal, Kollikarai and Pattavayal for opening of chawki rearing centres so as to popularize sericulture in that areas.
Source of Information :Annual Report:1985-86
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Management of chawki rearing centres by extension farmers.
Personnel :Thangavelu K, Veeraiah TM, Vijayaraghavan K
Project Period :1985-1986
Results/Recommendations :The centre has identified four places ie., Kadathur, NKP Road, Erullapatti and Pudupatty for opening chawki rearing centres managed by extension farmers.
Source of Information :Annual Report:1985-86
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the rearing performance of bivoltine hybrids.
Project Period :1985-1986
Objectives :To assess the rearing performance of bivoltine hybrids in different seasons.
Results/Recommendations :204 dfls of Bivoltine hybrids consisting of NB7 x NB18 & NB18 x NB7 were reared in different seasons. The performance of NB7 x NB18 was better during June-July (62.5 kg/100dfls) and Nov-Dec (69.6 kg/100dfls) whereas NB18 x NB7 yielded 72.4 kg/100 dfls during Aug-Sept. and 74.8 kg/100dfls during Nov-Dec.
Source of Information :Annual Report:1985-86
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Mounting trials with different types of mountages.
Personnel :Vindhya GS, BipinKumar, Gangadhar B
Project Period :1985-1987
Objectives :To study the feasibility of using newly fabricated mountages and to compare the merits/demerits with that of conventional bamboo mountages.
Results/Recommendations :Different mountages viz., bomboo mountages with ½” sq holes, plastic collapsible mountage, bamboo scaffolding-2 side type, round bamboo spiral, bottle brush and bamboo chandrike were tested. Plastic collapsible mountages can be used in place of conventional type mountage without many disadvantages. Results indicated that the percentage of urinated cocoon was more in bottle brush mountage (1.19% in NB18 x NB7 and 1.12% in PM x NB18) when compared to control (0.12% in NB18 x NB7 and 0.11% in PM x NB18) whereas there is no significant variation in good cocoon percentage, double cocoon percentage etc.
Source of Information :Annual Report:1986-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing of P4 races.
Project Period :1985-1986
Objectives :Preparation and supply of P3 layings of 4 approved bivoltine races.
Results/Recommendations :Approved bivoltine races viz., NB7, NB18, NB4D2 and KA were reared under this programme.
Source of Information :Annual Report:1985-86
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : Studies on improvement of silkworm rearing technology-Frequency of feed during young age rearing.
Personnel :Geetha Devi RG, Benjamin DAI, Narasimha Murthy B
Project Period :1985-1987
Objectives : To study the effect of frequency of feeding on silkworm rearing performance.
Results/Recommendations :For young age rearing 2, 3 and 4 feeds/day was given upto 2nd moult. After 2nd moult, 4 feeds/day were given to all batches. Results indicated that, 3 feeds/day in young age followed by 4 feeds/day is as good as 4 feeds throughout the larval period. Chopped leaf feeding was good for chawki rearing compared to shootlets and whole leaf feeding. Missing % was more in shootlets and whole leaf feeding (9-12%) compared to chopped leaf feeding (6.8-8.1%)
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Fabrication of leaf cutting machine.
Personnel:Geetha Devi RG, Himantharaj MT, Vindhya GS, Bipin Kumar, Gangadhar B
Project Period :1986-1988
Objectives :The machine was fabricated to reduce the time and labour involved in leaf chopping.
Results/Recommendations :The machine was designed mainly for chawki rearing. With the help of this machine 250g of leaf can be chopped per minute and easy to operate. The cut size of the leaf is uniform. The cost of the machine would be around Rs.800/-.
Source of Information :Annual Report:1987-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Use of polythene sheet in place of paraffin paper for young age silkworm rearing.
Personnel :Geetha Devi RG, Vindhya GS, Himintharaj MT, BipinKumar, Gangadhar B, Mathur VB, Singh GB, Sharmila KK
Project Period :1986-1991
Objectives :To test the feasibility of using polythene sheet for chawki rearing.
Results/Recommendations :Use of polythene sheet results in
· Reduction of leaf driage percentage.
· Reduction in larval duration.
· Increase in survival rate and yield by weight for 10,000 larvae brushed.
So blue polythene was found to be the best.
Source of Information :Annual Report:1986-91
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Behaviour of some silkworm races and their performance in Salem District in different season.
Project Period :1986-1987
Results/Recommendations :996 bivoltine layings of different combinations were distributed in the field. The harvest details shown that NB4D2 has given better results (66 kg.100 dfls) compared to other races.
Source of Information :Annual Report:1986-87
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on evaluation of suitable silkworm rearing house.
Project Period :1987-1988
Objectives :To study the effect on silkworm rearing in model rearing house.
Results/Recommendations :Silkworm rearing of 10 dfls of multi x bivoltines were reared in model rearing house and porta cabin at RSRS Farm during September/October'87. K2 mulberry variety leaf was fed to silkworm. There was no significant difference in ERR, yield, cocoon characters and larval duration. There was no significant variation in terms of yield, cocoon characters. However the larval duration was one day less in the porta cabin.
Source of Information :Annual Report:1987-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Impact of smokeless cooking oven on silkworm rearing (RSRS Salem).
Personnel :Thangavelu K, Veeraiah TM, Nagaraja, Gangwar SK
Project Period :1987-1989
Objectives :To study the rearing performance.
Results/Recommendations :Rearings in rearing houses having economic smokeless cooking oven had shown better performance in terms of weight of mature larvae, cocoon yield, effective rate of rearing and single cocoon weight. This may be due to elimination of excess heat and poisonous gases from the rearing houses through chimney of smokeless cooking oven while conventional (open type) cooking oven releases heat and poisonous gases inside the rearing house only, affecting the silkworm rearing.
Source of Information :Annual Report:1987-89
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of different incubation temperature on silkworm cocoon crop.
Personnel:Geetha Devi RG, Himantharaj MT, Vindhya GS, Bipin Kumar, Gangadhar B
Project Period :1987-1988
Objectives :To study the effect of different incubation temperature i.e., constant step-up and step-down temperature on silkworm cocoon crop.
Results/Recommendations :Incubation at 32°C resulted in one day early hatching but reduced hatching percentage and survival percentage. Constant temperature incubation at 26°C resulted in maximum hatching and improved survival percentage and cocoon characters. So 26°C temperature and 80% RH is optimum to obtain maximum hatching, growth, survival rate, cocoon yield etc.
Source of Information :Annual Report:1987-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of new mulberry varieties through bioassay studies.
Project Period :1987-1992
Objectives :Evaluation of new mulberry varieties through moulting test.
Results/Recommendations :In PM x NB4D2 the highest larval weight, ERR No. Cocoon weight as well as SR% were recorded in S13, MR2, K2, S34 respectively. In all the hybrids, the highest shell weight was recorded in S34 variety.
Source of Information :Annual Report:1987-92
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the effect of different mulberry varieties on silkworm rearing.
Personnel:Geetha Devi RG, Himantharaj MT, Vindhya GS, Bipin Kumar, Gangadhar B
Project Period :1987-1992
Objectives :To study the effect of different mulberry varieties on silkworm cococon crop.
Results/Recommendations :In NB4D2 x KA the highest values for the corresponding parameters were recorded on S54, S13, S34 and MR2 respectively. In PM x NB4D2 the highest larval weight ERR No. Cocoon weight as well as SR% were recorded on S13, MR2, K2, S34 respectively. In all the hybrids, the highest shell weight was recorded on S34 variety.
Source of Information :Annual Report:1991-1992
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Fabrication of rearing houses, mountages and rearing appliances with the locally available materials-Fabrication of low cost rearing houses.
Personnel:Geetha Devi RG, Himantharaj MT, Vindhya GS, Bipin Kumar, Gangadhar B
Project Period :1987-1988
Objectives :To study the suitability of separate, low cost house for silkworm rearing.
Results/Recommendations :Two types of rearing houses were constructed during this year. One was split bamboo plastered with mud and thatched roof and the other one mud walled with country tiled roof with all round verandah with an approximate cost of Rs.6200 and Rs.18,000 respectively with a rearing capacity of 100 dfls and 225 dfls per crop.
Source of Information :Annual Report:1987-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Designing of low cost incubation chamber for silkworm eggs.
Personnel:Geetha Devi RG, Himantharaj MT, Vindhya GS, Bipin Kumar, Gangadhar B
Project Period :1987-1988
Objectives :To find a suitable method to incubate the silkworm eggs at 26°C and 80% RH.
Results/Recommendations: Earthen pot, polythene tent, double brick wall incubation chamber were designed and tested. These device locally available, cheap and do not need electricity. Operation is simple and the required temperature of 25°C and RH of 80% can be maintained.
Treatment
Temperature(°C)
RH (%)
Hatching (%)
Polythene tent
26.4
75.3
93.3
Double brick wall
24.4
84.9
93.7
Earthen pot
25.1
81.7
91.7
Outside (room temp.)
28.6
60.7
83.5
Source of Information :Annual Report:1987-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing of P4 races.
Project Period :1987-1988
Objectives :To maintain the 4 approved races of bivoltines NB7, NB18, KA, NB4D2 and multivoltine MY1 and supply of layings.
Results/Recommendations :All the above races were reared under this programme and rearing performance is presented in table
Race
Eggs/dfls
Hatching %
ERR
Yield/100 dfls
S.C. Wt (kg)
S.S. Wt (g)
S.R.%
No.
Wt (kg)
No.
Wt (kg)
602
94.8
7521
12.19
43040
70.32
1.656
0.355
21.4
KA
634
95.8
7486
13.07
45355
79.40
1.806
0.366
20.0
NB18
604
95.5
7440
12.11
43000
69.80
1.676
0.356
21.2
NB4D2
523
95.6
7518
12.28
42388
69.20
1.726
0.370
21.4
MY1
520
90.7
8232
10.28
41206
50.90
1.270
0.180
14.1
Source of Information :Annual Report:1987-88
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on different CRCs efficiency.
Project Period :1988-1989
Objectives :To study the efficiency of different chawki rearing (centres) methods.
Results/Recommendations :The dfls brushed in CRC with leaf from well maintained chawki garden yielded 38.903 kg/100 dfls whereas CRC without separate garden yielded 35.5 kg/100 dfls and chawki rearing done with individual farmers yielded only 29.74 kg/100 dfls.
Source of Information :Annual Report:1988-89
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Use of different coloured polythene sheet in place of paraffin paper for chawki rearing.
Personnel :Geetha Devi RG, Vindhya GS, Himantharaj MT
Project Period :1988-1992
Objectives :To test the feasibility of using different coloured polythene sheet in place of paraffin paper for chawki rearing.
To reduce the input cost in rearing and to increase the leaf palatability and succulency for more duration for better cocoon harvest.
Results/Recommendations :Results indicated significantly less bed driage (P<0.01) and ERR by weight is significantly higher (P<0.05) in chawki rearing with polythene sheets. Other cocoon characters i.e., single shell wt and shell ratio also showed improvement under polythene sheet rearing. In addition to overall improvement and gain in yield, input in rearing can be reduced considerably by utilizing polythene sheets in place of paraffin paper.
Source of Information :Annual Report:1990-91
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the transportation of chawki during different stages.
Project Period :1988-1989
Objectives :To study the effect of transportation of chawki worm during different stages i.e., pre-moult under moult, after moult, before resumption and after resumption.
Results/Recommendations :Chawki worms can be transported for distribution either during moult or after resumption of feeding without causing any damage to the silkworms.
Source of Information :Annual Report:1988-89
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the number of feeding in silkworm rearing.
Project Period :1988-1989
Objectives :To study the rearing performance in different seasons having different temperature and humidity and to economize the labour utility.
Results/Recommendations :Highest ERR was recorded with the silkworm reared with four feedings a day (89.7%) followed by three feedings (82.4%). Unequal worms, irregular moulting and maximum diseases was recorded in the silkworm reared with two feedings a day.
Source of Information :Annual Report:1988-89
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Improving the sericultural productivity under rainfed/semi irrigated condition-Development of package of practices for mulberry-Studies on the transportation of chawki worms during different stages. (RSRS, Kodathi)
Personnel :Saratchandra B, Narasimha Murthy N
Project Period :1988-1989
Objectives : To evaluate the effect of transportational stress on the silkworm and arrive at the ideal stage for distribution.
Results/Recommendations :Chawki worms were distributed indifferent stages i.e., pre-moult, under-moult, after moult, before resumption and after resumption.
The results have indicated that chawki worms can be transported for distribution either during moult or after resumption of feeding without any damage to the silkworm.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of package of practices for silkworm rearing suitable to Andhra Pradesh-Development of rearing implements suitable to Andhra Pradesh-Development of low cost incubation chambers for silkworm egg incubation suitable to Andhra Pradesh. (RSRS Ananthapur)
Personnel :Pavan Kumar T, Murthy BN, Vidyunmala S, Murali Krishna Ch
Project Period :1989-1990
Objectives : To develop appropriate and low cost incubation chambers for silkworm egg incubation suitable to Andhra Pradesh
Results/Recommendations :Three types of low cost incubation chambers (LCIC) have been developed, fabricated and tested. Out of these, the one with double earthen pots was found more suited for incubation of silkworm eggs with good hatching (over 95%) and yield performance under semi arid conditions.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on rearing of silkworms in pit and its effect on cocoon crop.
Personnel : Mathur VB
Project Period :1990-1991
Objectives : High temperature and low humidity in summer are quite unfavourable for silkworm rearing. In order to have suitable environmental conditions for silkworm rearing.
Results/Recommendations :High temperature and low humidity in summer are quite unfavourable for silkworm rearing. To overcome these constraints a pit was made wherein temperature was 2-3°C less and humidity was 12-15% more than minimum fluctuations compared to model rearing house (RCC). Silkworm rearing with multi x bivoltine hybrids during different seasons, especially in summer revealed that parameters like ERR, single cocoon weight, single shell weight (P<0.01) and shell ratio(%) (P<0.05) were significantly higher over those reared in model rearing house.
Source of Information :Annual Report:1990-91
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Role of light during incubation of silkworm eggs & its effect on rearing performance and diapause.
Personnel :Meenal R, Mathur VB, Rajan RK, Kamble CK
Project Period :1991-1993
Objectives :To recommend a suitable photoperiod during incubation to avoid occurrence of non-hibernating eggs in bivoltine seed crop rearing.
Results/Recommendations :
· Popular bivoltine races were incubated under different photoperiodic conditions i.e., OL:24D, 8L:16D, 12L:12D, 24L:0D and control 16L : 8D and rearing was conducted in different seasons. 12-16hrs light/day is required during incubation. Exposure of eggs to more darkness leads to the production of non-hibernating eggs in the next generation. Among the treatments, hatching was significantly higher in 16L:8D (93.18%) and 12L:12D (93.03%).
· In other treatments, the hatching percentage ranged between 79 to 84%. Similarly non-hibernating eggs were recorded less than 1.5% in treatments 24L:0D, 16L:8D and 12L:12D. While in other treatments the non-hibernating percentage ranged between 1.51 to 3.43%. This indicates that exposure of eggs to more darkness during incubation results more in diapausing eggs.
Source of Information :Annual Report:1991-92
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Fabrication of egg transportation boxes and their evaluation.
Personnel: Vineet Kumar, Mathur VB, Rajan RK, Kamble CK
Project Period :1991-1993
Objectives :To develop a suitable silkworm egg transportation box to carry eggs to distant places.
Results/Recommendations :Six different types of egg transportation boxes ie.,
· Netlon mesh with foam pad.
· Packing material with galvanized mesh.
· Coir mesh with plastic net.
· Tarpaulin cloth with foam.
· Corrugated sheet with foam box and
· Corrugated sheet, were fabricated by utilizing locally available material. Hatching percentage was 90.3% in control while the same varied from 91.7% to 98.7% in the experimental batches the maximum hatching observed in box made up of netlon mesh with foam pad (i.e., No.1). However, no significant difference in rearing parameters were observed. Hence this model is recommended for transporting the silkworm eggs.
Source of Information :Annual Report:1991-93
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Fabrication of chawki rearing box (JICA).
Personnel :Sing GB, Vineet Kumar, Meenal R, Rajan RK, Inokuchi T
Project Period :1991-1997
Objectives : Under JICA project a "gamma type" chawki rearing box was fabricated with plywood and wooden frame of size 180 x 150 x 10 cm.
Results/Recommendations : A gumma type chawki rearing box was fabricated with plywood and wooden frame of size 180 x 50 x 40 cm with heating facility and humidifier for temperature and humidity maintenance and a thermostat for temperature regulation.
Maintenance of temperature and humidity in the box was studied and it was found that temperature was maintained in the range of 27-28°C and humidity 80-85% inside the box, when the outside temperature was 18-22°C and humidity 55 to 70%. The box is sufficient to rear 200 dfls upto III moult.
Source of Information :Annual Report:1991-97
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Fabrication of plastic bottle brush mountage.
Personnel :Rajan RK, Singh GB, Vineet Kumar, Meenal R, Inokuchi T
Project Period :1991-1997
Objectives :To develop plastic bottle brush mountage for self mounting.
Results/Recommendations : A plastic bottle brush mountage was fabricated which is ideal for self mounting in shoot rearing method. The mountage was 1.2 m long with detachable pieces and can hold 600-700 worms. It is durable, easy to disinfect and the quality of the cocoons was also improved. Good cocoon percentage was maximum in plastic bottle brush mountage (81.2%), cocooning ratio in plastic bottle brush mountage at par with those cocoons harvested from other mountages. Average filament length was maximum in plastic brush mountages i.e., 1186 mts.
Source of Information :Annual Report:1991-92
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of appropriate rearing technology for bivoltine sericulture-Development of young age silkworm rearing technology-Evaluation of mulberry varieties for young silkworm rearing.
Personnel :Inokuchi T, Singh GB, Meenal R, Mathur VB, Rajan RK
Project Period :1991-1997
Objectives :
Results/Recommendations :Twelve Indian and thirteen Japanese mulberry varieties were tested by “Kaburai test”. Kenmochi, Shinkemoni and Ichinose proved better among Japanese varieties. Among Indian varieties S36, S13, V4 and G9 performed well.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of rearing technology for bivoltine sericulture-Development of young age silkworm rearing technology-Examination of food value of mulberry leaves for young age.
Personnel :Rajan RK, Mathur VB
Project Period :1991-1997
Objectives :
Results/Recommendations :Thirteen mulberry varieties were tested by moulting test. Larvae fed with leaves of V1 variety have shown high moulting ratio (99.4%) and larval weight (0.589 g) and larval weight (0.589 g) when compared to other mulberry varieties.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of rearing technology for bivoltine sericulture-Development of mounting and harvesting technology-Effect of mounting on different days.
Personnel :Kamble CK, Singh GP
Project Period : 1991-1997
Objectives :To study the effects of early mounting.
Results/Recommendations :To study the effects of early mounting, after 4th moult, larvae were mounted on 4th, 5th, 6th and 7th day and cocoon characters were observed. Though larvae mounted on 4th day spun cocoons, cocooning percentage was less (69.77%) with minimum cocoon weight (1.07 g). There was a gradual increase in cocooning percentage and all other cocoon characters with the increase in mounting days.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of rearing technology for bivoltine sericulture-Development of mounting and harvesting technology-Effect of harvesting on different days.
Personnel :Himantharaj MT, Rajan RK, Mathur VB
Project Period :1991-9997
Objectives :To study the effect of cocoon harvesting on different days after mounting.
Results/Recommendations :Cocoons were harvested on 3rd, 4th, 5th, 6th and 7th day after mounting and cocoon characters were observed. Pupation was low in 3rd and 4th day harvested cocoons (22.22% and 25.55% respectively) as against 100% in cocoons harvested on 7th day. Cocoon characters were also significantly higher in batches harvested on 7th day.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of rearing technology for bivoltine sericulture-Development of late age silkworm rearing technology-Examination of food value of mulberry leaves for late age silkworms.
Personnel :Singh GB, Meenal R
Project Period :1991-1997
Objectives : To study the nutritive value of mulberry leaves for silkworm rearing.
Results/Recommendations :Thirteen mulberry varieties were tested by bioassay method. Larvae were fed with K2 leaves upto 3rd moult and then 13 different varieties were fed to the worms up to spinning. V1 variety was proved to be the best as there was an increase in cocoon yield and in individual cocoon characters.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of rearing technology for bivoltine sericulture-Development of late age rearing technology-Effect of humidity on late age silkworm rearing.
Personnel :Rajan RK, Singh GB, Muroga A
Project Period :1991-1997
Objectives : To study the effect of humidity on late age silkworm rearing
Results/Recommendations :Silkworm larvae after 3rd moult were reared in 60, 70 and 80% relative humidity. Matured larvae were allowed to spin at room humidity. Significant improvement in survival percentage, cocoon characters and filament length was observed.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the different methods of shoot preservation for later age silkworm rearing (JICA).
Personnel: Inokuchi T, Singh GB, Meenal R, Rajan RK, Himantharaj MT
Project Period :1992-1997
Objectives : To study different methods of shoot preservation for late age rearing
Results/Recommendations :Mulberry shoots of K2 variety were preserved in upward, downward and horizontal (control) positions and leaves were fed to the larvae (NB4D2 x KA) after 24hr.of preservation. Shoots preserved in upward position gave better results (ERR by number was 7700 and by weight 10.96kg) followed by downward and horizontal preservation (ERR by No. 6966 and by wt. 10.41kg for downward and horizontal 6733 by number and 9.5 kg by wt. respectively). Shell ratio was recorded maximum 21.02% in batches fed with upward stored shoot which is highly superior over control i.e., 19.47% only.
Source of Information :Annual Report:1992-93, Directory of Concluded Projects-CSR&TI, Mysore 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of mountages for shoot rearing (JICA).
Personnel: Inokuchi T, Singh GB, Meenal R, Rajan RK, Himantharaj MT
Project Period :1992-1995
Objectives :To evaluate the available/developed mountages for shoot rearing
Results/Recommendations :Four different types of mountages viz., plastic collapsible, plastic bottle brush, bamboo bottle brush, paddy straw were used in shoot rearing beds by self mounting. Rotary mountage was significantly superior overall the other mountages. Cocooning percentage was 95.22 and 90.22 and defective cocoon percent was 1.96 and 9.12 as recorded in rotary and bamboo chandrike mountages respectively. Maximum defective cocoons (14.5%) were observed in the paddy straw batches. Average filament length (1039m) and reelability (89.96%) was significantly superior in rotary mountages than chandrike (993m & 81.36 respectively).
Source of Information :Annual Report:1992-93, 1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of appropriate rearing technology for mulberry sericulture-Evaluation of leaf preservation methods.
Personnel :Vineet Kumar, Pallavi SN, Himantharaj MT, Kamble CK, Mathur VB, Singh GP
Project Period :1992-1994
Objectives : To study effect of leaf preservation methods on silk worm rearing performance.
Results/Recommendations :Leaf driage, moisture percentage was significantly less in leaf preserved in polythene-gunny-polythene and urea bag-gunny-urea bag. 150 ppm of Cycocel and Kaolin spray reduced leaf driage percentage.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on mounting methods (JICA).
Personnel: Inokuchi T, Singh GB, Meenal R, Rajan RK, Himantharaj MT
Project Period :1992-1993
Objectives :To evaluate the efficacy of self mounting, pickup method and Jobarai (shaking of mulberry shoots and collecting the fallen larvae for mounting) method.
Results/Recommendations : Self mounting, Pickup method and Jobarai (Shaking of shoots and collecting the fallen larvae for mounting) method were tested to evaluate their efficacy. Time taken for mounting 40,000 larvae was recorded. It was 9hrs 10 minutes, 19 hrs, and 16 hrs in self, pickup and Jobarai methods respectively. Maximum cocooning percentage was recorded in pickup method and minimum in self mounting. Average filament length and reelability were also superior in pickup and Jobarai methods when compared to self mounting.
Source of Information :Annual Report:1993-1995
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of rearing technology for mulberry-Cost effective rearing.
Project Period :1993-1994
Objectives : To reduce the cost of cocoon production and to increase the profitability in shoot rearing.
Results/Recommendations :The statistical analysis revealed non-significant difference between the treatments so, it is inferred that in shoot rearing, if sufficient quantity of shoot is supplied, even two feedings/day will not affect the rearing performance. By reducing the number of feedings, considerable man days can be saved.
Source of Information :Annual Report:1993-94
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the feed efficiency of silkworm hybrids on nutritional parameters with six mulberry varieties.
Project Period :1993-1995
Objectives :Nutritional quality of the mulberry leaves greatly influence the quality of cocoon crop and in turn the quality of silk.
Results/Recommendations :When compared with other varieties S34 showed high efficiency of conversion of ingested food into larval body and needs lesser ingesta and digesta for production of gram of shell. Briefly, S34 is good with regard to cocoon production whereas S30 is better for cocoon shell production.
Source of Information :Annual Report:1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Appropriate time of transfer of larvae from shelf to shoot rack.
Personnel: Pallavi SN, Himantharaj MT
Project Period :1994-1995
Objectives :To work out the appropriate time for transferring larvae from shelf to shoot rack.
Results/Recommendations : Larvae were transferred to shoot bed after second, 3rd and 4th moult and their rearing performance was studied. It is inferred that larvae can be transferred even after 2nd moult, from shelf to shoot rack.
Source of Information :Annual Report:1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Appropriate rearing bed space in shoot rearing.
Personnel: Himantharaj MT, Rajan RK
Project Period :1994-1995
Objectives :To study the effect of different rearing bed space in shoot rearing.
Results/Recommendations :The data indicate highly significant improvement (P<0.001) in ERR by number (9288), significant improvement (P<0.05) in ERR by wt.(14.615 kg) in 330 sq.ft/40,000 larvae compared to control i.e.,360 sq.ft (8630, 13,453 kg respectively). However, no significant difference (P>0.05) was observed in other parameters such as larval weight and cocoon characters. Hence to conduct cross breed rearing bed space of 330 sq.ft/40,000 larvae can be adopted by the farmers.
Source of Information :Annual Report:1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Cleaning frequency in shoot rearing.
Personnel: Kamble CK, Pallavi SN
Project Period :1994-1995
Objectives :To study the influence of frequency of bed cleaning in shoot rearing.
Results/Recommendations :Highest larval weight, ERR by number and weight, single cocoon weight and single shell weight (43.97g, 8687, 15.787 kg, 1,866 g and 0.342g respectively) were observed in the treatment of cleaning once in 5th instar. Hence, it is inferred that one cleaning is adequate in shoot rearing in 5th instar.
Source of Information :Annual Report:1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of cleaning methods in shoot rearing.
Personnel :Rajan RK, Singh GB
Project Period :1994-1995
Objectives :To find out the correct method of bed cleaning in shoot rearing, three methods were tried by using cleaning nets, rope and hand cleaning.
Results/Recommendations :During shoot rearing bed cleaning was tried by net cleaning rope cleaning and hand cleaning methods. It is concluded that in shoot rearing, rope cleaning method can be practiced to save the time and labour. Time taken to clean 40,000 larvae was 97,149 and 127 minute respectively in rope, net and hand cleaning methods.
Source of Information :Annual Report:1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : Evaluation of chawki rearing methods.
Personnel : Meenal R, Singh GB
Project Period :1994-1997
Objectives : Different methods of chawki rearing were tested with bivoltine hybrid ie., NB4D2 x CC1.
Results/Recommendations :Three different methods of chawki rearing viz., stand rearing, pileup rearing and chamber rearing were tried with paraffin paper covering and wrapping. Youngage rearing conducted by pileup method with paraffin paper wrapping significantly improved the survival rate and reduced leaf moisture loss. The data indicated that use of wet newspaper as bottom seat significantly improved the weight of larvae after 2nd moult (2.25g/100 larvae), reduced the leaf driage percentage (4%) compared to control (2.06g and 14% respectively). However, there was no significant difference in missing % of larvae. Wet newspaper rearing method is effective when humidity is very low and it helps to raise healthy chawki worms.
Source of Information :Annual Report:1996-97
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : Evaluation of shoot transportation methods.
Personnel: Mathur VB, Meenal R
Project Period :1994-1995
Objectives :To minimize the moisture loss during shoot transportation, different methods with various coverings were studied.
Results/Recommendations :Mulberry shoots were transported for 30 minutes by a) tractor and b) head load. Survival rate by number and weight and cocoon characters were significantly superior in those batches which were fed with shoots transported under covered condition compared to those transported under open condition. Hence, mulberry shoots must be transported by covering with polythene sheets so as to minimize the moisture loss and to get better yield.
Source of Information :Annual Report:1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Standardization of feeding frequencies in shoot rearing.
Personnel: Singh GB, Kamble CK
Project Period :1994-1995
Objectives : To standardize the frequency of feeding in shoot rearing.
Results/Recommendations : Equal quantity of mulberry shoots (2000kg in total) were fed 2, 3 and 4 times/day to 5th instar larvae of NB4D2 x CC1. Hence, even with two feedings per day by providing sufficient quantity mulberry shoot and maintaining suitable temperature and humidity in rearing house, it is possible to harvest good quality cocoons and reduce time and labour required for rearing.
Source of Information :Annual Report:1994-95
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Rearing of silkworm under AICE. (RSRS, Chamarajanagar)
Personnel :Vindhya GS, Mondal KC, Mahalingappa KC
Project Period :1994-1995
Objectives : To evaluate the rearing performance of silkworms under AICE.
Results/Recommendations :3 multi x bivoltine hybrid viz., RD1 x NB18, MY1x NB18 and PM x C.Nichi recorded 37.4 kg/100 dfls and 36.3 kg/100 dfls and 22.8 kg/100 dfls in the descending order of merit in terms of cocoon yield.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on spinning environment maintenance.
Personnel : Kamble CK, Singh GB
Project Period :1995-1996
Objectives :To find out the effect of different temperatures on the spinning behaviour of silkworm larvae.
Results/Recommendations :Mature larvae were allowed to spin at different temperatures with constant 70% RH, cocoon characters and reeling parameters were improved in cocoons spun at 27°C. Above this, cocoon quality was adversely affected. Yield by weight, shell weight and shell ratio percentage were higher for cocoons of larvae which spun at 27°C when compared to the other treatments. Further, reelability and non-breakable filament length were also improved in the cocoons spun at 27°C
Source of Information :Annual Report:1995-96
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of air current on spinning.
Personnel : Rajan RK, Singh GB
Project Period :1995-1996
Objectives : To study the influence of air current on spinning behaviour of silkworm.
Results/Recommendations :Spinning larvae were mounted on plastic collapsible mountages and exposed to different air currents namely, 1m/second, 0.5m/second, 0.25m/second, and no air current. Air current is necessary during spinning for quality cocoon production. Larvae which were allowed to spin the cocoon without air current showed poor filament length (900.57m) and reelability (83.31%).
Source of Information :Annual Report:1995-96
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of β-ecdysone on maturation of silkworm, cocoon and reeling characters.
Personnel : Mathur VB, Singh GB
Project Period :1995-1996
Objectives :To study the effect of β-ecdysone on maturation of silk worm larvae.
Results/Recommendations : β-ecdysone collected from NISES, Tsukuba, Japan was sprayed 12 and 18h before maturation of worms and percent of mature larvae was calculated after every 4h upto 20h, cocoon and reeling characters were studied.
Results indicated that more than 80 percent larvae matured within 12h after spraying Beta ecdysone and only 17% larvae matured in control batches. Except shell ratio percent, all other cocoon and reeling characters were non-significant in control and experimental batches.
Source of Information :Annual Report:1995-96
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of repellants on mounting of silkworm.
Personnel : Kamble CK, Pallavi SN
Project Period :1995-1996
Objectives : To study the effect of cresol and sawdust on mounting behaviour.
Results/Recommendations : Two repellents viz., 1% cresol with paddy husk and saw dust were applied on mature worms to accelerate spinning. Data indicated that more than 80 to 90 percent mature worms climb to the mountages within 16h after application of saw dust and cresol. However, about 50 percent worms climbed during said period in control beds. It is also obvious that due to the use of cresol and saw dust no significant difference was observed in cocoons and reeling parameters.
Source of Information :Annual Report:1995-96
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of rearing technology for mulberry sericulture-Evaluation of chawki transportation boxes.
Personnel : Pallavi SN, Mathur VB
Project Period :1995-1996
Objectives : To understand the efficacy of chawki transportation using
· Bamboo box with an inner lining of gunny cloth.
· Box made of plywood.
· Card board box lined with blue polythene sheet on the outer side.
· Shishuka,
· Paraffin paper rolls being the traditional method.
Results/Recommendations : Chawki larvae after 2nd moult were transported by different boxes for a distance of 30 km. The result showed that irrespective of the races, chawki worms transported in boxes made up of bamboo performed better than other chawki transportation boxes.
Source of Information :Annual Report:1995-96
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Estimation of bed disinfectant for shoot rearing method.
Personnel : Rajan RK, Vijaya Kumari KM
Project Period :1995-1997
Objectives : To estimate the optimum quantity of bed disinfectant (Vijetha) to be used for shoot rearing.
Results/Recommendations : Four treatments were imposed on the 5th instar larvae viz., 2(T2), 3(T3) and 4(T4)kg/40,000 larvae and no disinfectant (T1). The analysis of data revealed that ERR by number and weight marginally improved in T4 treatment (9631 and 17.283 kg respectively) when compared to the control and cocoon characters were at par with each other. Hence it is recommended that for 40,000 larvae, 4 kg Vijetha is required for shoot rearing. For 40,000 larvae, 4 kg Vijetha is required for shoot rearing.
Source of Information :Annual Report:1997-98
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of humidity on silkworm spinning.
Personnel : Singh GB, Meenal R, Muroga A
Project Period :1996-1997
Objectives :To find out the effect of different relative humidities on the spinning behaviour of silkworm larvae and on the quality of cocoons.
Results/Recommendations : Data indicated that maximum good cocooning percentage was recorded from the batches exposed to 70% humidity (92%). However, only 82% good cocoons were obtained in the batches exposed to 80% humidity. No significant difference among the cocoon weight was observed, but single shell weight and SR% were significantly inferior in the cocoons spun at 80% humidity.
Source of Information :Annual Report:1996-97
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies in relation between feed quantum and egg production in silkworm, Bombyx mori L.
Personnel :Prasanna H, Shivakumar GR
Project Period :1996-1997
Objectives :To know the critical feed reduction after 4th day onwards on the grainage parameters in bivoltine silkworm under tropical climatic conditions.
Results/Recommendations :The grainage parameters like pupal weight, emergence of moth, reproduction potency (egg recovery, weight of eggs) maximum hatching, better growth of embryo in the silkworm eggs upto 10 percent feed reduction can be adopted during leaf shortage.
Source of Information :M.Sc.Dissertation, 1997
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title : On farm trials-Wrap up method of chawki rearings. (RSRS, Salem)
Personnel :Mary Flora CA, Shekar MA, Vijayaraghavan K
Project Period :1996-1997
Objectives : To evaluate the wrap up method of chawki rearing at the regional farmers level.
Results/Recommendations : 3 trials have been completed with 10 farmers. Rearing of chawki worms in wrap up condition has increased the yield by 12.32 kg/100dfls and reduce the chawki duration by 6 to 12 hours.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :On farm trials-Evaluation of plastic bottle brush mountages. (RSRS, Salem)
Personnel :Mary Flora CA, Shekar MA, Vijayaraghavan K
Project Period :1996-1997
Objectives : To evaluate plastic bottle brush mountages at the farmers method.
Results/Recommendations: Evaluation was done for 3 crops with 10 farmers and at RSRS, Salem. The cocoon harvested from bottle brush mountages are superior in SR% (17.19%) compared to that of plastic collapsible mountages (16.87%) and bamboo mountages (16.53%).
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Estimation of consumption index optimum feed, frequency of feeding and rearing bed space.
Personnel :Meenal R, Rajan RK
Project Period :1997-1998
Objectives :To recommend suitable rearing schedule for authorized races.,
Results/Recommendations : Consumption index was estimated for two races i.e., CSR2 x CSR5 (Bivoltine hybrid) and BL24 x NB4D2 (multi x bivoltine). Results indicated that the larval weight, cocoon yield, cocoon and shell weight were significantly deteriorated in 2 feeds/day batch, but in 3 feeds/day, the larval weight (45.13 g), cocoon yield (9317 by number and 17.284 kg by wt.), cocoon weight (1.982 g) and shell weight (0.438 g) were on par with that of 4 feeds/day treatment. So it is clear that minimum 3 feeds/day is required for the CSR hybrids. However in BL24 x NB4D2, no significant difference was observed among the treatments.
Source of Information :Annual Report:1997-98
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of under feeding, leaf maturity, environmental conditions and spacing in late age on disease incidence and cocoon yield.
Personnel :Vijaya Kumari KM, Rajan RK, Balavenkatasubbaiah M
Project Period :1997-2000
Objectives :To determine the effect of the feed deprivation on the cocoon yield, cocoon characters and disease incidence, using CSR2 x CSR5 as the test material.
Results/Recommendations :Disease incidence was maximum in 40% feed cut batches. With the increase in the percentage of feed cut, the disease incidence also increased and cocoon yield and cocoon characters reduced. The cocoon yield and cocoon characters were significantly improved and the percentage of disease incidence was significantly reduced in larvae fed with 65 days old leaf. Larval duration was prolonged when the 5th instar larvae were reared at 20°C, 85% RH. Cocoon yield and SR% was significantly improved and disease incidence was minimized in larvae reared at 25°C, 70% RH. 50-60 larvae/sq.ft was ideal for 5th instar rearing. Overcrowding has reduced the cocoon quality and increased the incidence of diseases.
The cocoon yield and cocoon characters were significantly improved in leaf fed with 65 days old leaf. The percentage of disease incidence was significantly less in T2 (65 days) (45-64%) and maximum in T4 (95 days).
The data revealed that maintained the larval density of wider spacing improved the cocoon yield, cocoon characters and minimized the disease incidence. Over crowding in rearing bed significantly decreased all cocoon characters, cocoon yield and increased the disease incidence. The percentage of disease incidence with 1% infectious source ranged from 50 to 90% in grasserie and 45 to 85% in flacherie inoculated batches.
Source of Information :Annual Report:1997-2000
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of different environmental maintenance methods during rearing and spinning on cocoon quality.
Personnel :Singh GB, Himantharaj MT
Project Period :1997-2000
Objectives : To understand the effect of different environmental conditions on rearing and spinning of silkworm Bombyx mori.
Results/Recommendations : Chandrike and plastic collapsible mountages were disinfected with 2% formalin and 5% bleaching powder. Larvae were mounted in these mountages after 0h, 6h, 12h, and 18h of disinfection. Percentage of good cocoons and shell ratio was reduced in both the mountages irrespective of the disinfectants when the worms were mounted immediately after disinfection. All the reeling parameters were deteriorated when larvae were mounted immediately after disinfection. Different roofing materials that are popularly used by the farmers were evaluated. Data indicated that highest temperature (27°C) and humidity (76%) were recorded inside the rearing house. Minimum temperature (20°C) and humidity (60%) were recorded in open place under shade. Cocoon characters and reelability % were found better in batches kept in verandah and in open under shade.
Minimum and maximum temperature was recorded in thatched and asbestos roofs respectively. Cocoon characters and reelability percentage were found better in batches kept in verandah and in open under shade.
Source of Information :Annual Report:1999-2000
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Fabrication of different low cost rearing equipments to suit farmers conditions.
Personnel :Himantharaj MT, Rajan RK, Singh GB
Project Period :1997-2000
Objectives :To fabricate different low cost rearing equipments.
Results/Recommendations :Fabrication of loose eggs incubation frame, cocoon harvester for rotary mountage, dismantling type of shoot feeding rack, Chinese type of leaf preservation chamber were designed under this project.
Loose egg incubation frame was made with light wood, having an inner and outer frame, one frame can accommodate one box of egg (20,000) and costs Rs.30. A wooden cocoon harvester was fabricated to harvest cocoons from rotary mountages. Cost of one harvester is Rs.125 and it takes 2.5-3hrs to harvest cocoons of 100 dfls. Dismantling type of shoot rack was made (300 x 150cm) with four tiers. A low cost leaf preservation chamber was fabricated using bamboo mat and a central funnel. The capacity of the chamber is 50kg and cost is Rs.400. A low cost paper mountage was fabricated with corrugated paper that is semi absorbent in nature.
Among the rearing equipments, paper mountages is having several advantages compared to other mountages studied. It is cheap, it absorbs urine and provides good grip to the silkworm during spinning. Harvesting and storing is easy because of its collapsible nature.
Source of Information :Annual Report:1998-2000
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Impact of demonstration of rearing technologies on the cocoon yield and its return-Collection of data on knowledge level and identification of yield gap and reasons.
Personnel : Himantharaj MT, Singh GB, Geetha GS
Project Period :1997-1999
Objectives :To assess the knowledge and adoption levels of different technologies among farmers.
Results/Recommendations : Bench mark survey was conducted at two villages viz., Kokkerehundi and Sugganahally in Srirangapatna taluk of Mandya district.
· Analysis indicated that out of 18 technologies four technologies viz., mulberry spacing, leaf care, mounting and harvesting, marketing care was adopted by all the farmers fully. More than 70% farmers adopted four technologies viz., black boxing, feeding schedule, silkworm bed spacing and moulting care.
· Due to the adoption, increased to 46.75, 48.2 and 49.8 kg after first, second and third demonstration respectively. In addition to the yield, the returns/100 dfls were also improved from Rs.4543.00 (before demonstration) to Rs.6324.00 (after demonstration).
Source of Information :Annual Report:1998-99
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Promotion of popularizing the practical bivoltine sericulture technology-Verification, demonstration and popularization of bivoltine silkworm rearing technology.
Personnel :Keji Kurata, Rajan RK, Himantharaj MT, Singh GB, Sudhakar Rao, Ravindra Singh
Project Period :1997-2002
Objectives :To verify rearing technology for young and late age silkworm rearing, mounting and harvesting technology at farmers level.
Results/Recommendations :16 field trials were conducted at 10 TSCs, 8 in Karnataka, one each in Tamil Nadu and Andhra. 1.75 lakhs dfls were chawki reared and supplied to 142 selected farmers. The average cocoon yield/100 dfls was 65-70 kg and the rate obtained was Rs.202 kg of cocoons. Cocoons were tested reeled at CSTRI, Bangalore and renditta was 5.5-5.7 and cocoon quality was 2A-4A grade.
Source of Information :Annual Report:2000-2001,Directory of Concluded Projects, CSR&TI, Mysore 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Effect of shootlets feeding during young age and its impact on cocoon production.
Personnel : Ravi HK, Vinod B Mathur
Project Period :1997-1998
Objectives :To evaluate the rearing and economical cocoon parameters by adopting shootlets feeding during young age.
Results/Recommendations :It is very clear from the result that 2 feeding frequency per day with shootlets showed better values in respect of all characters i.e., from the missing percentage to cocooning stage and given most consistent crop.
Source of Information :M.Sc.Dissertation,1998
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of bivoltine sericulture for hill areas-Studies on silkworm rearing schedules and season specific hybrids. (RSRS, Coonoor)
Personnel :Rajalakshmi E, Sindagi SS, Lakshmanan V, Kamble CK
Project Period :1997-2000
Objectives : To study schedule and season specific hybrid rearing of silkworms.
Results/Recommendations :Six CNR hybrids namely, CNR4 x CNR3, CNR4 x CNR10, CNR5 x CNR3, CNR7 x CNR3, CNR14 x CNR3 and CNR15 x CNR1 were reared during the following seasons. July-Aug 97-rainy season, Nov/Dec, 97-witner season, May/June, 98 - summer season, July/Aug, 98–rainy season, Nov/Dec, 98 - winter season, May/June, 99-summer season. Standard rearing practices were followed and observation on rearing, cocoon and reeling parameters were recorded. It is inferred from the two years data that the following silkworm hybrids were found to be performing better than the other hybrids and season specific: CNR4 x CNR3 – summer season, CNR15 x CNR1- Rainy season and CNR14 x CNR3-winter season.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No.:CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on silkworm rearing management for improvement of productivity and cocoon quality-Standardization of rearing schedule for new races submitted for authorization-Field testing of standard rearing schedule.
Personnel :Meenal R, Rajan RK, Himantharaj MT
Project Period :1997-1999
Objectives :
Results/Recommendations :A new rearing package was prepared with 20% more food and bed area for CSR and BL hybrids. This package was tested in the field for its suitability. Field trials of CSR hybrids were carried out with ten farmers of Tadakvadi and Chikkarahally villages of Srirangapatna and BL hybrids were carried out in Gangavadi and Shanuboganahally of Nagamangala. The results showed 6-8 kg improvement in cocoon yield and the rate/kg of cocoons was also high by adopting the new recommendations. Partial budget was worked out. The net gain obtained for 100 dfls of CSR hybrids was Rs.1233.45 and for BL hybrids Rs.649.75.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Promotion of popularizing the practical bivoltine sericulture technology-Training and guidance of technical staff in silkworm rearing.
Personnel :Rajan RK, Himatharaj MT, Singh GB, Sudhakar Rao P, Ravindra Singh
Project Period :1997-2002
Objectives : To promote and popularize the practical bivoltine sericulture technology through training programmes.
Results/Recommendations :33 DOS/CSB officials and all selected farmers were trained in bivoltine silkworm rearing technology.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Promotion of popularizing the practical bivoltine sericulture technology-Enlightenment activities for expanding bivoltine silkworm rearing technology.
Personnel :Rajan RK, Himatharaj MT, Singh GB, Sudhakar Rao P, Ravindra Singh
Project Period :1997-2002
Objectives : To develop enlightenment activities for expanding bivoltine silkworm rearing technology.
Results/Recommendations :35 enlightenment programs, 9 field days, 9 group discussions and 7 one day training programs were conducted.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Preparation of manuals for the promotion and popularization of the practical bivoltine sericulture technology-Improvement of bivoltine silkworm rearing technology and disease control methods.
Personnel :Rajan RK, Himatharaj MT, Singh GB, Sudhakar Rao P, Ravindra Singh
Project Period :1997-2002
Objectives : To prepare manuals for the promotion and popularization of the practical bivoltine sericulture technology
Results/Recommendations :Two manuals viz.,
· Standard new practical technologies for commercial bivoltine silkworm rearing and
· Illustrated working process of new bivoltine silkworm rearing technology were prepared and the second manual was translated into Tamil and Telugu.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of lac coating on bamboo trays its durability and economics in silkworm rearing.
Personnel :Sateesh Kumar S, Rajan RK
Project Period :1998-1999
Objectives :To evaluating the lac coating on bamboo trays, its durability and economics.
Results/Recommendations :From the above study, it is clear that the possibility of employing the lac coated trays into the silkworm rearing are not remote. It is presumed that lac coated trays may prove to be of greatest advantage to silkworm, rearers and the damage caused due to the 'thatteroga' disease is minimized. The lac coating of bamboo trays will go in a long way of enhance the durability of trays which will reduce the expenditure of rearing by using the lac coated trays maximum number of times/yr. Lac reduces the chance of inflicting injury to the persons who handle it.
Source of Information :M.Sc.Dissertation, 1999
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Low cost device for incubation of silkworm eggs and chawki rearing under rainfed condition. (RSRS, Chamarajanagar)
Personnel :Babu GKS, Dayananda, Thiagarajan V
Project Period :1998-1999
Objectives : To study the efficacy of low cost device for incubation of silkworm eggs and chawki rearing under rainfed conditions.
Results/Recommendations :The experiment was conducted in three seasons. The three seasons rearing trial performance showed 11.37% improvement in hatching and 5.92 kg of cocoons/100 dfls.
Project Outcome :A low cost bamboo tray device for incubation of silkworm eggs was developed at RSRS, Chamarajanagar by using bamboo rearing tray, blue polythene sheet, paraffin paper, nylon tray covering net, black/white cotton cloth. Chawki rearing was also conducted in low cost bamboo tray device.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Performance of shoot rearing technology.
Personnel : Ganapathi Rao R, Hiriyanna
Project Period :1999-2000
Objectives :The study was conducted with 30 farmers covered by REC, Madivala and TSC Srirangapatna and Halagur areas.
Results/Recommendations :The farmers could generate an additional income of Rs.14,331/acre/yr by adopting shoot rearing technology. The advantages of shoot rearing as reported by the farmers were high yield, labour saving, less disease incidence, more remuneration and easy maintenance. The important disadvantages were difficulty in controlling the diseases, if occurred and requirement of more space for rearing.
Source of Information :Annual Report:1999-2000
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on feed conversion efficiency of CSR hybrid silkworm (Bombyx mori L.) reared under different temperature and humidity conditions.
Personnel : Suresh HM, Rahmathulla VK
Project Period : 1999-2000
Objectives :To study on the feed conversion efficiency of CSR hybrid races in both favourable and unfavourable ecological conditions.
Results/Recommendations :In CSR18 x CSR19 race, consumption, digestion and utilization of food is high during high temperature and low humidity conditions which is an indication of the high efficiency of the race to feed and convert into body matter.
Source of Information :M.Sc.Dissertation, 2000
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of silkworm mounting on rotary mountage for improvement of cocoon quality.
Personnel :Anil Kumar R, Rajan RK
Project Period :1999-2000
Objectives :To evaluate the silkworm mounting on rotary mountage for improvement of cocoon quality and reduce space requirement.
Results/Recommendations :
· Time taken for mounting is less compared to other methods of mounting.
· Highest number of good cocoons and minimum number of defective cocoons were recorded.
· There was no significant decrease in cocoon characters and also post cocoon parameters.
· 450 sq.ft. floor area is required to mount 100 dfls larvae (40 rotary mountage) by horizontal method of mounting, wherein mounting by hand keeping mounting vertically method of mounting only 180 sq.ft floor is required to mount 100 dfls of larvae. Thus, the mounting by hand keeping mountage is the best method to mount larvae to rotary mountage with less time and less floor area.
Source of Information :M.Sc.Dissertation, 2000
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :On farm trials-Effect of lac on bamboo rearing trays. (RSRS, Kodathi)
Personnel :Shantala R, Shivashankar N, Magadum SB
Project Period :1999-2000
Objectives : To study the durability of lac smeared bamboo rearing trays.
Results/Recommendations :Five rearing trials conducted during the period utilizing PM x NB4D2 hybrid combinations. Data indicated significantly higher survival by number and weight in lac coated trays and less disease incidence in lac coated trays compared to controls.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :On farm trials-To test the efficacy of rotary mountages. (RSRS, Kodathi)
Personnel : Shivashankar N, Shantala R, Magadum SB, Sikdar AK
Project Period :1999-2000
Objectives : To test the efficacy of rotary mountages at regional level.
Results/Recommendations :Four trials were conducted during the period along with controls. Significantly higher good cocoon percentage and less double cocoon percentage were recorded in cocoons harvested by rotary mountages compared to other mountages.
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Technology trials at RSRS, Salem-Trial on rotary mountages. (RSRS, Salem)
Personnel :Punithavathy G, Thirunavukkarasu T, Vijayaraghavan K
Project Period :1999-2001
Objectives : To test the efficacy of rotary mountages at regional level.
Results/Recommendations :Conducted 5 trials with CSR hybrids. The average data indicated that maximum cocooning percent (95.6) and minimum defective percentage (1.68) in rotary mountage compared to control i.e., plastic collapsible mountage (92.7% and 4.2% respectively).
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Technology trials at RSRS, Salem-Testing of Lac. (RSRS, Salem)
Personnel :Punithavathy G, Thirunavukkarasu T, Vijayaraghavan K
Project Period :1999-2000
Objectives : To study the durability of lac smeared bamboo rearing trays.
Results/Recommendations :Conducted 2 trials. The melting percentage and disease incidence was low in lac coated trays (3% and 2%) compared to cow dung coated trays (5.3% and 5.5%).
Source of Information :Directory of Concluded Projects of CSRTI, Mysore- 2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the effects of early and delayed mounting of new silkworm races (CSR hybrid) of Bombyx mori L.
Personnel : Syed-Zia-ul-Haque-Rufaie, Rahmathulla VK
Project Period :2000-2001
Objectives :To know the effect of early and delayed mounting on cocoon and reeling characters of newly evolved and introduced CSR hybrid races.
Results/Recommendations :The results indicated that the worms mounted before the exact maturation time (6, 12, 18 & 24) showed inferior cocoon and reeling characters in comparison to control. To some extent the mounting process can be delayed upto 12hrs. after actual maturation, if worms are kept in such a way, which will prevent the loss of silk protein. There was significant variation between all the ripe and unripe treatments mounted at different percentages of maturation levels. However, 50% maturation level treatment showed better results during all the seasons.
Source of Information :M.Sc.Dissertation, 2001
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Acceleration of mounting in self mounting method and its effect on cocooning, cocoon characters and reeling parameters in silkworm Bombyx mori L.
Personnel :Kakali Das, Himantharaj MT
Project Period : 2000-2001
Objectives :
· To accelerate the mounting by using different repellents.
· To reduce the labour required for mounting by way of self-mounting.
· To use rotary mountage with minimum space.
Results/Recommendations :It could be concluded that by use of repellents at wandering age, accelerate the spinning process without affecting the cocoon and reeling parameters. In addition by employing self mounting in rotary mountage considerable amount of time and labour can be saved without any compromise in cocoon quality.
Source of Information :M.Sc.Dissertation, 2001
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Maximization of mulberry leaf yield and quality through integrated technology.
Personnel :Chandrakanth KS, Meenal R, Rajan RK
Project Period :2001-2005
Objectives :To validate the silkworm rearing technologies as package to facilitate rearing of 10 crops/year.
Results/Recommendations :To calculate cost economics under large scale rearing, a total of 4150 dfls were brushed in eight batches adopting the technologies of silkworm rearing in integration. No significant difference in the rearing performance was recorded between the batches reared on control and treated leaves.
Source of Information :Annual Report:2002-03
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Estimation of optimum feed quantum and rearing bed spacing for new bivoltine hybrids.
Personnel :Vijaya Kumari KM, Rajan RK, Mal Reddy N
Project Period :2001-2003
Objectives : To estimate the optimum rearing bed spacing and feed quantum for the newly evolved bivoltine hybrids, CSR18 x CSR19 and CSR16 x CSR17.
Results/Recommendations :The results indicated that, CSR18 x CSR19 hybrids performed well with 10% less feed and 10% excess bed space i.e., 1728 kg shoot and 600 sq.ft.bed area/40,000 larvae when compared to standard package (1920 kg shoot and 550 sq.ft. bed space). The hybrid, CSR16 x CSR17 requires 10% less feed and 10% excess bed space (1728 kg shoot and 650 sq.ft.bed spacing) than the standard.
Source of Information :Annual Report:2002-03
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Estimation of optimum feed quantum and rearing bed spacing for new multivoltine hybrids.
Personnel : Vijaya Kumari KM, Rajan RK, Premalatha V
Project Period :2001-2003
Objectives :To estimate the optimum rearing bed spacing and feed quantum for the newly evolved multivoltine hybrids, BL67 x CSR19, BL67 xCSR5 and BL67 x NB4D2.
Results/Recommendations :The results indicated that BL67 x CSR19 and BL67 x CSR5 hybrids performed well with 10% more feed (2100 kg shoot) and 10% more bed space (400 sq.ft) than the standard feed (1920kg shoot) and standard bed space (360 sq.ft.). BL67 x NB4D2 hybrid requires standard feed (1920 kg shoot) and standard bed space (360 sq.ft).
Source of Information :Annual Report:2002-03
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Evaluation of different materials to accelerate mounting of silkworms.
Personnel :Singh GB, Meenal R, Rajan RK
Project Period :2001-2002
Objectives : To understand the feasibility of different materials for silkworm CSR2 X CSR5 accelerate mounting.
Results/Recommendations :Data indicated that larval climbing was hastened by 6-10 hrs. in the batches where lime powder was used compared to control batches. Five to six kg lime was required for dusting 100 dfls larvae. All the other commercial characters were not affected by the use of lime powder. In addition to hastening the larval climbing, lime reduces the humidity during spinning.
Source of Information :Annual Report:2001-02
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Fabrication and evaluation of rotary mountage cleaner cum deflosser.
Personnel : Rajan RK, Singh GB
Project Period :2001-2003
Objectives : To study the efficacy of the developed prototype of Rotary mountage cleaner cum deflosser with selected farmers of Turuvekare and Varthur for its suitability.
Results/Recommendations :A total of 4-5 hrs (0.5 man days) is required to defloss 400 cardboards as against 20-25 hrs (2.5 mandays) required to clean the same number of card boards manually. Therefore, 2 mandays can be saved by using rotary mountage cleaner for 100 dfls (Rs.160) and cleaning is more effective without damaging the mountage.
Source of Information :Annual Report:2001-03
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the effect of feeding different quality leaves during late larval stages of Bombyx mori L. on commercial characters.
Personnel : Tilk Raj, Rahmathulla VK
Project Period :2001-2002
Objectives :To assess the effect of feeding different quality leaves (tender, medium and coarse) and intermixing of these different quality leaves to the silkworm growth and its effect on cocoon and reeling parameters.
Results/Recommendations :It can be concluded that the quality of leaves varies with maturity. Therefore commencing of the rearing should be so timed that bulk of harvest is made and utilized at the correct stage of leaf maturity. Thus timely harvest of leaves ensures both higher leaf yield and better quality of leaves for feeding silkworm. Further for the uniform growth and development of the silkworms in the bed it is very essential to provide the leaf of the same quality.
Source of Information :M.Sc.Dissertation, 2002
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on the commercial viability of mulberry garden for chawki rearing-Comparative evaluation on the performance of young age silkworm reared on S36 and V1 mulberry leaves harvested from exclusive chawki garden.
Personnel :Singh GB, Vijaya Kumari KM, Rajan RK, Babu GKS
Project Period :2002-2006
Objectives :To evaluate the rearing performance of the young age silkworms reared on leaves of S-36 and V-1 varieties harvested from exclusive chawki gardens.
Results/Recommendations :The young age worms were fed on S36 and V1 variety of chawki leaves and distributed among farmers of four TSCs. During the year 7900 dfls were chawki reared and supplied among farmers in addition to rearing of the institute. Data on growth and development of chawki worms were collected. Data showed that there was no significant difference between the batches reared on S36 and V1 leaves. Therefore, both the mulberry varieties can be recommended for young age silkworm rearing.
Source of Information :Annual Report:2002-06
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Development of package of practices of silkworm rearing suitable for Andhra Pradesh.
Personnel : Vidyunmala S, Subba Rao M, Sivarami Reddy N
Project Period :2003-2005
Objectives :To develop a package of practice for silkworm rearing during hot and dry summer season in Andhra Pradesh.
Results/Recommendations :By integrating all the three devices (Hydro Dynamic Incubator, Low Cost Environator and Evaporative Cooling Appliance), an improvement of 5.15% in single cocoon weight, 6.39% in shell wt, 1.22% in shell ratio, 15.91% in cocoon yield and 19.22% in net returns was recorded.
Source of Information :Annual Report:2003-05
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Economics of integrated technology package (Moriculture and Sericulture) in the farm/farmers, field and yield gap analysis (PIB-3265)-Effect of integrated technology package on mulberry and cocoon yield. (RSRS, Kodathi)
Personnel :Shanthala R, Jaishankar, Veeraiah TM
Project Period :2003-2005
Objectives :To integrate all the relevant productive technologies as a package for mulberry cultivation and silkworm rearing in orders to maximize the mulberry productivity and cocoon production.
Results/Recommendations :The analyzed data of five crops revealed an average yield of 55,145 and 52,353 kg/ha/year in ITP and control plots, respectively. The difference between the two was however not significant. Similarly, no difference was recorded in cocoon characters between two treatments. No significant difference was recorded in leaf and soil properties of ITP and control plots.
Source of Information : Annual Report: 2004-2005
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on integrated sericulture management for water stress area of Chamarajanagar-Studies on suitability of shoot rearing and training of mulberry trees under rainfed condition.
Personnel :Subramanian RK, Gururaj R
Project Period :2004-2005
Objectives :To evaluate the shoot rearing technology under rainfed condition.
Results/Recommendations :Data of three trials indicated that in two crops of shoot rearing from trees, higher yield and ERR and cocoon characters were recorded than control. Third trial conducted by leaf feeding indicated better rearing performance on leaf from tree against leaf from bush.
Project Outcome :
Source of Information :Annual Report:2004-05
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on test verification of different chawki practices-Comparative evaluation on the performance and economics of leaf feeding Vs shootlet feeding for commercial chawki rearing from garden developed exclusively for chawki rearing.
Personnel :Vijayakumari KM, Singh GB, Babu GKS
Project Period :2004-2006
Objectives :To evaluate the performance and economics of leaf feeding Vs shootlet feeding for commercial chawki rearing from garden developed exclusively for chawki rearing.
Results/Recommendations :Data showed that if chawki worms were fed with unchopped mulberry shootlets the percentage of missing larvae was as high as 16%. However, only 4% missing larvae were reported from batches fed with chopped leaf. However, when the shootlets were chopped and fed the percentage of missing larvae was same in both the treatments. Therefore, mulberry shootlets should be chopped and fed to young worms.
Source of Information : Annual Report: 2005-2006
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on test verification of different chawki practices-Study the efficacy of foggers and mist blowers inside the leaf preservation room Vs traditional method of leaf preservation.
Personnel : Singh GB, Vijayakumari KM, Babu GKS
Project Period :2004-2006
Objectives :To study the efficacy of foggers and mist blowers inside the leaf preservation room Vs traditional method of leaf preservation.
Results/Recommendations :To avoid the leaf driage during preservation various methods were tried. Foggers, mist blowers and wet gunny cloth were tried to preserve the chawki leaves. All three methods leaf driage was reduced to 5% compared to 14% leaf driage where it was preserved without any protection. Four percent leaf driage was observed in the batches, which were preserved in mist blower or under fogger and 5% leaf driage was found in the batches which were preserved with gunny cloth.
However, mist blower and foggers need electricity. It was observed that lot of water accumulates on floor and it was difficult to maintain the hygiene inside the leaf preservation room. Therefore, it is clear that wet gunny cloth could be used for proper chawki leaf preservation.
Source of Information : Annual Report: 2005-2006
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Studies on test verification of different chawki practices-Test verification and evaluation of different environmental protection devices for commercial chawki rearing.
Personnel : Singh GB, Vijayakumari KM, Babu GKS
Project Period :2004-2006
Objectives :To utilize air cooler, mist blower, humidifier and wet gunny cloth with drippers to maintain the humidity inside the chawki rearing house.
Results/Recommendations :During the rearing two humidifiers were run for four hours/day to raise the humidity. Similarly, gunny cloth of 2 meters x 0.6 meters size hung inside the rearing house. The water was sprayed thrice/day at the interval of 3 hours during day time.
Data indicated that natural humidity which was 40% was raised to 79% by the use of air coolers, 82% by the use of mist blowers and 80% by the use of wet gunny cloth with drippers. It is clear that all the three devices could be used to raise the humidity inside the chawki rearing house.
Source of Information : Annual Report: 2005-2006
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Project No :CSM
Organization :Central Sericultural Research and Training Institute, Mysore
Project Title :Technology Validation cum Demonstration Centre (TVDC).
Personnel :Nagaraj SB, Prakash Murthy DP, Babu GKS
Project Period :2004-2005
Objectives :To assess the new technologies which have proved better at laboratory level.
Results/Recommendations :The important technologies covering all the aspects of late age silkworm rearing, mounting and harvesting technologies were validated. During the year total 7 crops of different hybrids were reared.
Source of Information : Annual Report: 2004-2005
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