【摘要】 奶牛日粮添加13克高活性康贝,试验组的产奶量比对照组提高178千克P<005;添加20克,增幅达274千克P<001,乳脂量比对照组高988%P<005,牛奶中体细胞数低于13克组和对照组P<005。大群饲喂20克康贝的生产试验也获得了相似的结果。更多还原

【Abstract】 Compared with the control group,supplementation with 13g COMBO in the ration of high yielding dairy cows significantly increased average daily milk yield by 1.78kg(P<0.05),and continuously went up by 2.74kg(P<0.05)with ghe growing supplementation of 20g.Milk fat yield was higher tnat that of control group when 20g COMBO was fed,while the somatic cell count (SCC) in the milk was markedly lower that those of control and 13g fed groups.Similar results were obtained throught fhe 20g fed trials in some larger commercial dairy herds.更多还原