Anestrous相关论文
Objective: To determine the effect of equine chorionic gonadotropin (eCG) and controlled intal drug releasing (CIDR) on ......
试验旨在研究批次化生产条件下针对乏情后备母猪采取不同处理方式对其繁殖性能的影响。试验选取152头240日龄以上,无发情记录的后......