1. College of Eco-Environmental Engineering, Qinghai University, Xining, Qinghai, China
2. Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai, China
3. School of Life Sciences and Engineering, Hexi University, Zhangye, Gansu, China
4. Research Monitoring and Evaluation Center of Qinghai National Park, Xining, Qinghai, China