[1]College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China;
[1]College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China;
[1]College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China;
[1]College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China;
[1]College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China;
microRNAs; RNA; methylation; Spermatogenesis;