胃乐佳(奶牛专用稀释活性干酵母)对奶牛产奶量和采食量的影响  

Impact of Especial Dilution Live Yeast on Milk Yield and Intake of Dairy Cattle

作　　者：黄恒新 强刚 刘仕军 马玉敏 

机构地区：[1]广州市华美牛奶公司增城奶牛分场,广东广州511335 [2]芜湖市繁昌县农委,安徽芜湖241200 [3]上海光明荷斯坦牧业有限公司,上海200443

出　　处：《乳业科学与技术》2011年第2期82-86,共5页JOURNAL OF DAIRY SCIENCE AND TECHNOLOGY

基　　金：上海科委上海市农业星火富民科技工程项目"规模化奶牛场高效生态养殖技术体系建立与示范"项目资助(项目编号:09dz1913500)

摘　　要：随机选择80头生产性能、泌乳天数和胎次相近的健康荷斯坦奶牛80头随机分成2组(对照组和试验组)。所有参试牛采用相同的的饲养管理模式,饲喂相同的基础日粮,但试验组每头奶牛额外添加稀释干活性酵母100 g,对照组每头奶牛额外添加100 g碳酸钙。结果证实,添加干活性酵母有着提高产奶量的趋势,但统计差异不显著(P>0.05)。试验组平均较试验前产奶量提高了4.58 kg,而对照组仅提高了3.08 kg。在采食量方面,试验第二周时采食量与对照组统计差异显著(P<0.05)。The objective of this study was to examine the effect of especial dilution live yeast on milk yield and intake of dairy cattle. Eighty Chinese Holstein cows in mid lactation （DIM of 109.5 ± 10） were randomly assigned to two treatment groups （control and experimental treatments） over 56 days. All cows were managed according to the same model and the basal diet. At the same time, 100 g calcium carbonate was supplemented for cows from control treatment and 100 g especial dilution live yeast for cows from the experimental treatment. It was proved that the average milk yield in experimental treatment were increased numerically （4.56 kg w＇. 3.08 kg） compared with control, but no significance difference. The intake from experimental treatment in second week was different （P〈0.05）. The appearance of feces from the experimental treatment was better than those from the control. In a word, these results showed that addition especial dilution live yeast is beneficial to enhance feed efficiency and digestibility, and then enhance milk yield.

关 键 词：奶牛 稀释活性干酵母 产奶量 采食量 

分 类 号：S823.5[农业科学—畜牧学]