[Zeng, D. L.; Liu, W.; Wang, K. Z.; Liu, Y.] Hunan Agr Univ, Coll Vet Med, Changsha 410128, Hunan, Peoples R China.
[Zhu, X. Q.] CAAS, Lanzhou Vet Res Inst, State Key Lab Vet Etiol Biol, Key Lab Vet Parasitol Gansu Prov, Lanzhou 730046, Gansu, Peoples R China.
[Zhao, G. H.] NW A&F Univ, Coll Vet Med, Yangling 712100, Shaanxi Prov, Peoples R China.
[Tan, M. Y.] Ctr Qual Quarantine Livestock Poultry & Aquacultu, Changsha 410006, Hunan, Peoples R China.
[Zhao, G. H.; Lin, R. Q.; Zhu, X. Q.; Yuan, Z. G.] S China Agr Univ, Coll Vet Med, Guangzhou 510642, Guangdong, Peoples R China.