YUE Xiao-hui1,LU Ji-qi2,WANG Zhen-long2,FENG Jun-ji1,TONG Chuan1,LIU Zhong-hu1(1.Engineering College of Animal Husb,ry , Veterinary Sciences,Henan Agricultural University,Zhengzhou 45002,China,2.Department of Bioengineering,Zhengzhou University,Zhengzhou 450001,China)
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