Affiliation: | 1. State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, P.R. China College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China;2. Hubei Provincial Institute of Veterinary Drug Control, Wuhan, P.R. China;3. College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, P.R. China;4. State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, P.R. China |