1. Center for Meat Safety & Quality, Department of Animal Sciences, Colorado State University, Fort Collins, Colorado 80523-1171
2. Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado 80523-1619
3. JBS Packerland Inc., Green Bay, Wisconsin 54311
4. Elanco Animal Health, Greenfield, Indiana 46140
5. Feedlot Research Group, West Texas A&M University, Canyon, Texas 79016-0001