1. College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
2. Key Laboratory of Animal Diseases and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, China
3. Key Laboratory of Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
4. Livestock and Poultry Biological Products Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu, China
5. National Center of Technology Innovation for Pigs, Chongqing Academy of Animal Sciences, Chongqing, China