Chuan-Sheng Zhang, Li-Ying Geng, Chun-Guang Yin, D.U. Li-Xin, Zheng-Zhu Liu, Zhi-Xin Fu, Shen Ping, Chen Juan, Qing-Hui Jia and Xie-Rong Liu
Journal of Animal and Veterinary Advances 10 ( 2 ): 241 - 245 , 2011