1. Gastrointestinal Stress Biology Laboratory, Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI
2. Department of Animal Science, Iowa State University, Ames, IA
3. Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC
4. Department of Animal Science, North Carolina State University, Raleigh, NC