Geoffrey E. Dahl is the Harriet B. Weeks Professor in the Department of Animal Sciences at the University of Florida, Gainesville.  

Dr. Dahl conducts applied and basic research with direct impact on dairy production.  Specific research interests include effects of photoperiod manipulation on production and health, the impact of frequent milking in early lactation on milk production, and heat stress abatement during the dry period on cow productivity and health and calf fetal programming. 

Those research efforts are disseminated through his Extension programming in the US and abroad.  Indeed, Dr. Dahl has been invited to present his research findings in 20 countries and Geoff has active Extension program efforts in a variety of low-middle income countries including Sri Lanka, Nepal, Rwanda and Ethiopia. Dr. Dahl has authored over 170 peer-reviewed papers and numerous symposium and popular press articles.  He has trained 30 graduate students and post-doctoral fellows. 

Dr. Dahl is a member of several professional and honorary societies including the American Dairy Science Association (ADSA), the American Society of Animal Science, the Society for the Study of Reproduction, American Association for the Advancement of Science (AAAS), and the Endocrine Society.  He served as President of ADSA from 2018 to 2019.  Geoff has received numerous awards including the Award of Honor from ADSA and is an elected Fellow in AAAS.