美国娟姗牛协作组,AJCC American Jersey Cattle Club,音标,读音...
2) Jersey cow 娟姗牛3) Jersey bulls 娟姗公牛 1. Jersey bulls and Holstein Bulls in the semitropical climate in Guangzhou district were used in the present study. 本试验选择亚热带气候条件下广州地区的娟姗公牛和荷斯坦公牛各5头,比较两个品种公牛的精液品质(采精量、原精密度、原精活力、细...