Peng Jiao, Yuming Guo, Xin Yang and Fangyu Long
Journal of Animal and Veterinary Advances 9 ( 11 ): 1546 - 1551 , 2010
Xuhui ZHANG, Baowei WANG, Fangyu LONG, Lei WANG and Zhigang YANG
Turkish Journal of Veterinary and Animal Sciences 33 ( 3 ): 215 - 222 , 2009