Dr. Geoffrey E. Dahl serves as Professor and Chair in the Department of Animal Sciences at the University of Florida, Gainesville. He was raised on a dairy farm in Massachusetts and pursued his B.S. in Animal Science from the University of Massachusetts, his M.S. in Dairy Science from Virginia Tech, and received his Ph.D. in Animal Science from Michigan State University. Prior to serving at the University of Florida, Dr. Dahl has held positions at the University of Michigan, University of Maryland, College Park and the University of Illinois, Urbana-Champaign. Dr. Dahl has served both ASAS and ADSA with distinction on numerous committees and through editorial work for both JAS and JDS.

In addition to serving as Chair, Dr. Dahl maintains active research and outreach programs focused on environmental management of production animals, particularly dairy cattle. His specific research program includes determining effects and mechanisms of photoperiod manipulation and heat stress abatement during the dry period on cow and offspring productivity and health. He has taught at the undergraduate and graduate levels in animal science, dairy management, animal physiology, lactation physiology, endocrinology, and reproductive physiology, and received teaching and mentoring awards from the Universities of Maryland, Illinois, and Florida. To date, Dr. Dahl has authored over 105 peer-reviewed journal articles, and numerous book chapters, proceedings, and popular-press articles. He has trained 18 graduate students and 7 post-doctoral fellows.