作者单位: | 1.College of Agriculture and Animal Husbandry, Qinghai University, Qinghai Province, Xining810016;2.Natural Resources Comprehensive Investigation and Monitoring Institute of Qinghai Province, Qinghai Province, Xining810016;3.Academy of Animal Husbandry and Veterinary Sciences, Qinghai University, Qinghai Province, Xining810016; |