1. Institute of Animal Nutrition Sichuan Agricultural University Chengdu P. R. China
2. Key Laboratory for Animal Disease‐Resistant Nutrition of the Ministry of Education of China Sichuan Agricultural University Chengdu P. R. China
3. Key Laboratory of Animal Disease‐Resistant Nutrition of Sichuan Province Sichuan Agricultural University Chengdu P. R. China
4. Department of Pharmacology UT Southwestern Medical Center Dallas Texas USA
5. School of Life Sciences Sichuan Agricultural University Chengdu P. R. China