1. Key Laboratory of Pig Genetic Resources Evaluation and Utilization (Nanjing), Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
2. Laboratory of Intestinal Microbiology, Huaian Academy, Nanjing Agricultural University, Nanjing, China
3. Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
4. Industrial Technology System Integration Innovation Center of Jiangsu Modern Agriculture (Pig), Nanjing, China