1. State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources, College of Animal Science and Technology Guangxi University Nanning China
2. Reproductive Medicine Guangxi Medical and health key discipline construction project of the Affiliated Hospital of Youjiang Medical University for Nationalities Guangxi Baise China
3. Zhang Jiagang Animal Husbandry and Veterinary Station Zhang Jiagang Jiangsu China