1. Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
2. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
3. College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
4. International Joint Research Laboratory in Universities of Jiangsu Province of China for Domestic Animal Germplasm Resources and Genetic Improvement, Yangzhou 225009, China