华北农学报2012，Vol.27Issue(z1)：406-409,4.
益生菌对泌乳后期奶牛生产性能的影响
Effects of Probiotics on Performance of Late Lactation Dairy Cows
摘要
Abstract
This study investigated the effect of supplementation with probiotics on performance of late lactation dairy cows. 48 cows with similar Body weight, party, milk production and days in milk (DIM) were allocated randomly to 4 treatments. Treatments consisted of control ( no supplemental probiotics) , YC ( control diet plus yeast (15 g/d) ) ,LC (control diet plus lactic acid bacteria (1 g/d) ) , and NT ( control diet plus bacillus subtilis natto (1 g/d) ) ?The feeding trial lasted for 9 weeks :2 weeks of diet adaptation and 7 weeks of experimental period. The results showed that different probiotics have different effects on milk yield and milk composition. Milk production was greater (P <0.05) for late lactation dairy cows supplemented with LC and NT than for those on YC and control treatments, milk quality was significantly improved by treatments LC and NT. Treatment YC had no effect on Milk production and quality were not effected significantly by yeast supplementation. Electrical conductivity was decreased significantly by probiotics supplementation ( P < 0.05). Somatic cell counts tended to be decreased (P>0.05).关键词
益生菌/酵母菌/纳豆芽孢杆菌/乳酸菌/奶牛/产奶性能Key words
Probiotics/Yeast/Bacillus subtilis natto/Lactic acid bacteria/Dairy cow/Milk performance分类
农业科技引用本文复制引用
黄良策,周凌云,卜登攀,程建波,季昀..益生菌对泌乳后期奶牛生产性能的影响[J].华北农学报,2012,27(z1):406-409,4.基金项目
天津市成果转化项目(201004090) （201004090）
现代奶业产业技术体系(nycytx-04-01) （nycytx-04-01）
