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Genetic Diversity

The Bloodhound has a relatively small gene pool as there are just not many of them, however this can be improved by importing new bloodlines from abroad, that being said a lot of the bloodlines do go back to English dogs in their pedigrees, so when calculating the coefficient of breeding more generations need to be taken into consideration to get a truer picture of how closely they are related.

Breeding Coefficient 

The average breeding coefficient for Bloodhounds at the moment is 6.5. Breeders should aim to be below or around this level. 

Below are examples of the genetic equivalent of the dogs’ coefficient, this does not mean it is that mating but that the genetic material is duplicated to that level. 

Some dogs may show a very low inbreeding on a 3 generation pedigree but when you extend it back that coefficient increases as there may be more common ancestors. 

As you will be able to see when the coefficient is reaching 25% there is a lot of similar genetic material.

Breeders use line breeding to increase the  good genetic material available and concentrate on producing certain traits but sometimes this can concentrate the bad genetic material this can lead to earlier mortality rates, health problems, temperament problems and a resulting loss in breed type as there is never any new genetic material available so  you can only ever breed the same.

·         0% indicates a dog that comes from two unrelated parents, based on all available pedigree information

·         12.5% would equate to the genetic equivalent of a dog produced from a grandfather to granddaughter mating.

·         25% would equate to the genetic equivalent of a dog produced from a father to daughter mating.


Inbreeding can be accumulative, so if it has occurred to a significant degree over several generations, the inbreeding coefficient may exceed 25%.