Todd Riley Callaway

Todd Riley Callaway is a Professor in the Department of Animal and Dairy Science at the University of Georgia's College of Agricultural & Environmental Sciences. He also holds courtesy faculty positions in the Department of Poultry Science and serves as Graduate Program Faculty. Dr. Callaway has extensive experience in ruminant microbiology, having previously served as National Program Leader for Food Safety for USDA-ARS and as a research microbiologist in the Food and Feed Safety Research Unit at the Southern Plains Agricultural Research Center.

Dr. Callaway's educational background includes:

• B.S. in Animal Sciences from the University of Georgia (1993)
• M.S. in Animal Sciences from the University of Georgia (1996)
• Ph.D. in Microbiology from Cornell University (1999)

Dr. Callaway's research focuses on the gastrointestinal microbiome of food animals and its impact on animal performance, health, and food safety. His work centers on understanding how the ruminal microbes can be manipulated to improve cattle nutrition and reduce foodborne pathogens. He has published over 200 refereed journal articles, 25 book chapters, and two books titled "Direct Fed Microbials" and "On-Farm Strategies to Control Foodborne Pathogens". His research has been supported by major agricultural organizations including the National Cattlemen's Beef Association, National Dairy Board, National Pork Board, and U.S. Poultry and Egg Foundation.

Analysis of Dr. Callaway's recent publications reveals a consistent focus on gastrointestinal microbial ecology, particularly examining how diet and environmental factors influence microbial populations in ruminants and other food animals. His work spans diverse areas including pathogen control, feed efficiency, alternative feed sources, and the development of non-antibiotic interventions to enhance animal health and food safety. The publications demonstrate interdisciplinary collaboration across animal science, microbiology, food safety, and veterinary medicine.

Dr. Callaway has received numerous prestigious awards including the American Feed Industry Association Award in Ruminant Nutrition Research (2023), multiple Research.com Animal Science and Veterinary Medicine Leader Awards (2022-2025), and the USDA/ARS Early Career Scientist of the Year Award (2007). He currently serves as Editor in Chief of Foodborne Pathogens and Disease (2022-2027) and has held leadership positions in the American Dairy Science Association.

His grant portfolio demonstrates significant research funding, with current projects focused on understanding the microbiome's role in beef production efficiency, food safety, and sustainability. Recent projects include "Bridging the Feedlot Gap: Educating Young Professionals for the Future of Georgia's Beef Industry" and "Enhancing Food Safety in Georgia's Beef Cattle Sector: Understanding E. coli and Microbiome Dynamics". Dr. Callaway teaches several courses including ADSC 4250-Microbiology and Immunology in Domestic Animal Health, ADSC 4360/6360-Ruminant Nutrition, ADSC 8150-Gastrointestinal Microbial Ecology of the Ruminant, and ADSC 8885-Current literature in ruminant nutrition and microbiology.