1. College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China.
2. School of biotechnology, Central South University, Changsha, Hunan 410012, China.
3. Center for Animal Disease Prevention and Control, Urumqi, Xinjiang 830000, China.
4. Center for Animal Disease Prevention and Control, Tacheng, Xinjiang 834700, China.
5. Center for Animal Disease Prevention and Control, Changji, Xinjiang 831100, China.
6. Center for Animal Disease Prevention and Control, Korla, Xinjiang 841000, China.
7. State Key Lab of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China.