1. Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
2. University of Chinese Academy of Sciences, Beijing 100039, China
3. Department of Animal Science, Hunan Agriculture University, Changsha, Hunan 410125, China
4. Hunan Co-Innovation Center of Animal Production Safety, Changsha, Hunan 410128, China
5. College of Animal Science of South China Agricultural University, Guangzhou 510642, China