Institution: | aInstitute of Animal Nutrition, Northeast Agricultural University, Mucai Street 59#, Xiangfang District, Harbin 150030, PR China;bDivision of Avian Infectious Disease, National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, PR China;cCollege of Animal medical, Northeast Agricultural University, Harbin 150030, PR China |