1. Key Laboratory of Veterinary Pharmaceutical Development, Lanzhou Institute of Husbandry and Pharma-Ceutical Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
2. State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Xujiaping 1, Lanzhou 730046, China
3. College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Jinzhong 030801, China
4. College of Life Science, Ningxia University, Yinchuan 750021, China
5. Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China