Avian Disease Research Center;
Collage of Veterinary Medicine of Sichuan Agriculture University;
Yaan 625014;
Sichuan Province;
China;
College of Life Science and Technology of Southwest University for Nationalities;
Chengdu 610041;
Sichuan Province;
China;
Key Laboratory of Animal Disease and Human Health of Sichuan Province;
College of Veterinary Medicine of Sichuan Agriculture University;
Yaan 625014;
Sichuan Province;
China;