1. College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu, China
2. Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, China
3. Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu, Sichuan Province, China
4. Key Laboratory for Animal Science of National Ethnic Affairs Commission, Chengdu, Sichuan, China
5. College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China