饲喂百奥美速酵源对荷斯坦乳牛产奶量及乳品质的影响  

Effects of yeast(Saccharomyces cerevisiae) on Milk Production and Composition in Holstein Dairy Cows

作　　者：张英来[1] 程起方[1] 曹燕淑[1] 王运亨 张振山 吴毓群 周玉云 

机构地区：[1]北京奶牛中心,100085 [2]北京西郊奶牛公司,100094 [3]美国科汉森有限公司

出　　处：《中国奶牛》2000年第5期20-22,共3页China Dairy Cattle

摘　　要：饲喂百奥美速酵源试验组头日产奶量比对照组增２．０１千克，提高７．１％，差异显著（Ｐ＜０．０５）；试验组乳脂率和乳干物质率显著高于对照组（Ｐ＜０．０５），试验组乳脂量、乳干物质量极显著高于对照组（Ｐ＜０．０１）；经济效益分析表明投入产出比为１：４。Supplementation with yeast (Sc) increased milk production by 2.0kg/d.enhanced by 7.l% (P <0.05), Addition of yeast to the diet increased the percentages of milk Fat and milk for matter(p<0.05), no differences were significant for milk lactose and milbalk protein percentages(p> 0. 05), Daily milk fat (P<0.01) 、milk protein(p<0.05)、milk lactose(p<0.05)、milk dry matter(p<0.01) were increased by dietary yeast. The ratio of input to output was l:4 by economic benefit analysis.

关 键 词：奶牛 酵母 产奶量 乳成份 饲料 

分 类 号：S823.91[农业科学—畜牧学] S816.6[农业科学—畜牧兽医]