Affiliation: | 2. Key Laboratory of Animal Physiology and Biochemistry, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China;3. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P.R. China;4. College of Animal Feed Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China |