1. Univ. of Tennessee – Agricultural and Resource Economics 2621 Morgan Circle Knoxville TN 37996 USA
2. Univ. of Tennessee – Plant Sciences 252 Ellington Plant Sciences Bldg. 2431 Joe Johnson Dr. Knoxville TN 37996 USA
3. USDA‐ARS – Poultry Production and Product Safety Research Unit O‐303, Maple Street Fayetteville AR 72701 USA