1. College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, P. R. China
2. Department of Pathobiology, Faculty of Veterinary and Animal Sciences, PMAS- Arid Agriculture University Rawalpindi, 46000, Pakistan
3. Animal Health Supervision of Henan Province, Bureau of Animal Husbandry of Henan province, Zhengzhou, 450000, P.R. China