Fang Xing-Tang, Xu Hai-Xia, Chen Hong, Zhang Chun-Lei, Hu Xiu-Cai, Gao Xue-Yuan, Gu Chuan-Wen, Yue Wang-Ping and Lan Xian-Yong
Journal of Animal and Veterinary Advances 9 ( 5 ): 907 - 912 , 2010