1. College of Animal Science, South China Agricultural University, Guangzhou, China;
2. Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou, China;
3. Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture P. R. China, Guangzhou, China;
4. Guangdong Provincial Engineering Technology Research Center of Modern Eco-agriculture and Circular Agriculture, Guangzhou, China