纳豆芽孢杆菌对泌乳期奶牛产奶量、牛奶品质的影响  

Effects of supplementation of Bacillus subtilis Natto on milk production and qnality of lactating cow

作　　者：栾广春[1] 王加启[1] 卜登攀[1] 刘仕军[1] 邓露芳[1] 陈强[1] 周振峰[1] 单安山[2] 

机构地区：[1]中国农业科学院北京畜牧兽医研究所动物营养国家重点实验室,北京100094 [2]东北农业大学动物科学技术学院,哈尔滨150030

出　　处：《东北农业大学学报》2008年第9期58-61,共4页Journal of Northeast Agricultural University

基　　金：国际科技合作重点项目"奶牛安全饲用微生物及其人工瘤胃评价技术研究"(2004DFA06700)

摘　　要：文章旨在研究纳豆芽孢杆菌(Bacillus subtilis Natto)对泌乳期奶牛生产性能、牛奶品质与机体免疫的影响。选用泌乳期、胎次、产奶量、体重相似的荷斯坦奶牛36头,采用完全随机分组原则分成3组,每组12头。试验期为60d,预饲期10d,分别在试验期的0、30、60d采集奶样,每周测定1次产奶量。试验结果表明,添加芽孢杆菌能显著提高产奶量(P<0.05)、改善乳脂率、提高乳蛋白率(P<0.05)、增加牛奶中干物质含量和降低牛奶中体细胞数。The paper studied the influence of dietary Bacillus subtilis Natto on milk production and milk quality in lactating cows. Total 36 cows with similar age, party and day in milk（DIM） were randomly allocated to 3 groups. The feeding trial lasted for 60 d. The milk samples were collected in 0, 30, 60 d, and the milk production was measured every week. The results showed that milk production, milk fat and milk protein were higher than those from cows in control（P〈0.05）, whereas somatic cell counts were decreased.

关 键 词：纳豆芽孢杆菌 牛奶品质 生产性能 

分 类 号：S879.1[农业科学—畜牧兽医]