1. Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, China
2. College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
3. Tianjin Aoqun Sheep Industry Academy Company, Tianjin, China
4. Tianjin Aoqun Animal Husbandry Co., Ltd, Tianjin, China
5. Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Ji’nan, China