1. College of Veterinary Medicine, South China Agricultural University, Guangzhou, People’s Republic of China
2. Zhaoqing Institute of Biotechnology Co. Ltd., Zhaoqing, People’s Republic of China
3. Henan University of Animal Husbandry and Economy, Zhengzhou, People’s Republic of China
4. ZhaoqingDaHuaNong Biology Medicine Co. Ltd., Zhaoqing, People’s Republic of China