Shuqing Liu, Xintao Gao, Pingjun Li, Hong Jia, Ting Xin, Shaohua Hou, Xiaoyu Guo, Weifeng Yuan, Gaimei Zhang, Ming Li, Jing Wu and Hongfei Zhu
Journal of Animal and Veterinary Advances 13 ( 8 ): 549 - 557 , 2014