Nuowei Zhang, Shining Guo, Huanrong Li, Jiefeng Li, Xiaolong Xu, Changrong Wan, Hong Zhao, Faqiang Liu, Junlan Zan, Bin Wang and Jianqin Xu
Journal of Animal and Veterinary Advances 11 ( 9 ): 1290 - 1298 , 2012