1. School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
2. Institute of Animal Science and Technology of Aba Tibetan and Qiang Autonomous Prefecture, Aba, Sichuan, China
3. Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China