1. Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA
2. Poultry Research Unit, USDA–Agricultural Research Service, Starkville, MS 39759, USA
3. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
4. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
5. Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
6. Tyson Foods, Springdale, AR 72762, USA