Effect of feeding yeast culture (Yea-sacc(1026)) on rumen fermentation in vitro and production performance in crossbred dairy cows

被引:15
|
作者
Kamalamma
Krishnamoorthy, U
Krishnappa, P
机构
[1] UNIV AGR SCI, DAIRY SCI COLL, DEPT DAIRY PROD, BANGALORE 560024, KARNATAKA, INDIA
[2] UNIV AGR SCI, COLL VET, DEPT ANIM NUTR, BANGALORE 560024, KARNATAKA, INDIA
关键词
yeast culture; rumen fermentation; dairy cows;
D O I
10.1016/0377-8401(95)00829-2
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The effect of supplementing diet with yeast culture (Yea-sacc(1026)) on dairy cattle was studied by rumen in vitro studies and a feeding trial, Using rumen inoculum from a cow, yeast adapted (YA) and yeast unadapted (YU), incubations were carried out with finger millet (Eleusine coracana) straw (FMS) and a commercial cattle feed (CCF). The 24 h cumulative gas production and digestibility of neutral detergent fibre and acid detergent fibre were not different with YU and YA rumen inoculum for both FMS and CCF. Microbial nitrogen synthesis (mg N ml(-1) gas produced) with rumen inoculum from YA feeding regime was higher (P < 0.01) than YU with starch (0.1068 vs, 0.1008) and cellulose (0.0900 vs. 0.0859). A feeding trial was conducted using twelve multiparous cows in midlactation in a switch over design, The cows were divided into two groups of six cows in each group. The duration of the trial was fourteen weeks, each period lasting for 7 weeks. There were no differences in dry matter intake, body weight gain and milk yield. Milk composition for the two groups were also similar.
引用
收藏
页码:247 / 256
页数:10
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