Xu Wei, Shi Shangli, Qi Juan, Victor R. Squires, Hua Limin, Zhang Wenyu, Wang Xingzhong, Wang Yongfu, Ni Xingze, Liu Changbo, Li Peng and Chai Shaofang
Journal of Animal and Veterinary Advances 12 ( 6 ): 689 - 693 , 2013