1. Key Laboratory of Animal Reproduction and Germplasm Enhancement in Universities of Shandong, College of Animal Science and Technology; Qingdao Agricultural University; Qingdao Shandong China
2. Institute of Reproductive Sciences; Qingdao Agricultural University; Qingdao China
3. College of Life Science; Qingdao Agricultural University; Qingdao China
4. Department of Reproductive Medicine; Peking University Shenzhen Hospital; Medical Center of Peking University; Shenzhen Guangdong China
5. State Key Laboratory of Reproductive Biology; Institute of Zoology; Chinese Academy of Sciences; Beijing China