Corresponding Author

College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China

Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, Zhejiang, China

Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, Zhejiang, China

Correspondence Tizhong Shan and Wenjing You, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou 310058, Zhejiang, China.

Email: tzshan@zju.edu.cn and youwj@zju.edu.cn