1. Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro‐ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture Chinese Academy of Sciences Changsha Hunan China
2. University of Chinese Academy of Sciences Beijing China
3. College of Animal Science and Technolaogy Hunan Agricultural University Changsha Hunan China
4. Department of Nutrition University of California Davis California