Embryo transfer and pregnancy diagnosis All animal procedures followed the Guide for the Care and Use of Laboratory Animals of the Northwest A&F University. Qinchuan cattle, used as recipients, were synchronized by cloprostenol treatment before
Embryo transfer and pregnancy diagnosisAll animal procedures followed the Guide for the Care and Use of Laboratory Animals of the Northwest A&F University. Qinchuan cattle, used as recipients, were synchronized by cloprostenol treatment before