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. Meat Science and Muscle Biology Laboratory, Department of Animal Sciences, University of Wisconsin-Madison, Madison, WI, USA
3. Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, China
4. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, China