1. National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
2. Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, China
3. University of Chinese Academy of Sciences, Beijing, China
4. College of Life Science, Hunan Normal University, Changsha, Hunan, China