1. College of Wildlife Resources, Northeast Forestry University, Harbin, Heilongjiang 150040, China
2. State Key Lab of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang 150069, China
3. Shanghai Hile Bio–Pharmaceutical Co., Ltd., Shanghai, 201403, China
4. Wendengying Veterinary Station, Weihai, Shandong 264413, China