Affiliation: | 1. College of Veterinary Medicine, Shaanxi Centre of Stem Cells Engineering & Technology, Northwest A&F University, Yangling, Shaanxi, China;2. College of Agriculture, Guangdong Ocean University, Zhanjiang, Guangdong, China;3. Key Laboratory for Mammalian Reproductive Biology and Biotechnology, Ministry of Education, Inner Mongolia University, Hohhot, China |