Key Laboratory of Agro-Ecological Processess in Subtropical Region;
Hunan Research Center of Livestock&Poultry Sciences;
South-Central Experimental Station of Animal Nutrition and Feed Science in Ministry of Agriculture;
Institute of Subtropical Agriculture;
The Chinese Academy of Sciences;
Changsha;
Hunan 410125;
China;
Hunan International Joint Laboratory of Animal Intestinal Ecology and Health;
Laboratory of Animal Nutrition and Human Health;
College of Life Sciences;
Hunan Normal University;
Changsha;
Hunan;
410081;
China;