1. College of Veterinary Medicine, Northwest A&F University, Yangling, China
2. College of Chemistry and Pharmacy, Northwest A&F University, Yangling, China
3. Poultry Institute, Shandong Academy of Agricultural Science, Jinan, China
4. State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
5. Instrumental Analysis Center, Xi'an Jiaotong University, Xi’an, China