【摘要】 本文研究了在奶牛日粮中添加冬牧 70黑麦草和奶牛专用预混料作为奶牛配合精料能提高奶牛产奶量 9%。经过方差分析 ,对产奶量的影响差异极显著更多还原

【Abstract】 This text research is it herd 70 black wheatgrass and special-purpose compounding cooperate with precise material and supplement material impact on milk yield as cow in advance cow to add among the day grain in cow.Fing that joins 70 high-quality black wheatgrass and special-purpose compounding in advance of cow in the day grain,can improve 9% of milk yield of cow.Through analysis of variance,the difference of impact on milk yield is extremely remarkable.更多还原