[Zi, Q.; Guo, S.; Li, P.; Qu, X.; Lei, J.; He, C.] Hunan Agr Univ, Coll Anim Sci & Technol, Changsha 410128, Hunan, Peoples R China.
[Zi, Q.; Guo, S.; Li, P.; Qu, X.; Lei, J.; He, C.] Hunan Agr Univ, Hunan Engn Res Ctr Poultry Prod Safety, Changsha 410128, Hunan, Peoples R China.
[Yao, Y.] Huaihua Ctr Anim Husb & Fisheries Affairs, Huaihua 418000, Hunan, Peoples R China.
[Yao, Y.] Hunan Yunfeifeng Agr Co Ltd, Res & Dev Ctr, Huaihua 418200, Hunan, Peoples R China.
[Zou, X.] Hunan Agr Univ, Coll Vet Med, Changsha 410128, Hunan, Peoples R China.