1. Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, People's Republic of China.
2. Institute of Reproduction and Metabolism, Yangzhou University, Yangzhou, People's Republic of China.
3. College of Veterinary Medicine, Yangzhou University, Yangzhou, People's Republic of China.
4. Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, People's Republic of China.