[Wu, Yong; Yu, Hui; Huang, Chong-Yin; Li, Yu-Juan; Sun, Zhi-Liang; Yang, Kun; Liu, Zhao-Ying; Cao, Jun-Jie] Hunan Agr Univ, Coll Vet Med, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.
[Wu, Yong; Yu, Hui; Huang, Chong-Yin; Li, Yu-Juan; Sun, Zhi-Liang; Yang, Kun; Liu, Zhao-Ying; Cao, Jun-Jie] Hunan Agr Univ, Hunan Engn Technol Res Ctr Vet Drugs, 1 Nongda Rd, Changsha 410128, Hunan, Peoples R China.