Karen Davison, PhD, director of equine technical solutions for Purina Animal Nutrition, earned her Master of Science and PhD degrees in equine nutrition from Texas A&M University. Davison's research included some of the early work investigating the use of added fat in horse diets. She spent eight years as an associate horse specialist with Texas Agricultural Extension Service, developing and teaching youth and adult education programs, prior to joining Purina in 1993. Davison has guest-lectured at universities and veterinary schools, is published in scientific research journals and magazines, has authored book chapters, and presented at regional and national veterinary meetings on equine nutrition topics. She and her family are involved with training and competing in the cutting and rodeo performance horse industries.