1. Department of Animal Nutrition and Feed ScienceCollege of Animal Science and TechnologyHuazhong Agricultural University Wuhan China
2. Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry ProductionKey Laboratory of Agro‐ecological Processes in Subtropical RegionInstitute of Subtropical AgricultureChinese Academy of Sciences Changsha China
3. University of the Chinese Academy of Sciences Beijing China