1. Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China
2. Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science, Changsha City, Hunan, China
3. Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha City, Hunan, China