1. College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China
2. Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, China
3. Key Laboratory of Agricultural Bioinformatics, Ministry of Education, Sichuan Agricultural University, Wenjiang, Chengdu 611130, China
4. College of Food Science, Sichuan Agriculture University, Yaan, Sichuan 625014, China