摘要
选用20头胎次、泌乳月、产奶量、乳成分及身体状况相似的高产荷斯坦奶牛,随机分为2组。试验组奶牛每天添加2g/(d·头)高活性干酵母,研究其对奶牛生产性能的影响。结果表明:饲料中添加高活性干酵母能使奶牛产奶量显著增加(P<0.05),但对乳成分无显著影响(P>0.05)。
Twenty dairy cows with similar parity,secreting month,milk yield,components of milk and the physical condition were selected,and randomly divided into two groups （treatment group and control group）. Each dairy cow of treatment group was supplied 2 g/d yeast which has the high activity.The results indicated that,the milk yield of the treatment group was improved compared with the control group （P 〈 0.05）;but no significant influence was found to the components of milk（P 〉 0.05）.
出处
《中国饲料》
北大核心
2009年第11期24-25,共2页
China Feed
基金
唐山市重大农业科技攻关项目"奶牛专用饲料关键技术研究与示范"(05125001B)
唐山师范学院科学研究基金项目"酵母培养物微生态饲料添加剂的研制与应用"(07C23)
关键词
酵母
奶牛
生产性能
yeast
diary cows
production performance
