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. Yunnan Academy of Grassland and Animal Science, Kunming, China
3. Shandong Key Lab of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
4. Faculty of Veterinary and Animal Sciences, University of Poonch Rawalakot Azad Jammu and Kashmir Pakistan, Rawalakot, Pakistan