In vitro degradation of fresh substrates treated with exogenous fibrolytic enzymes

被引：6
|
作者：
Bowman, GR
Beauchemin, KA
Shelford, JA
机构：
[1] Agr & Agri Food Canada, Res Ctr, Lethbridge, AB T1J 4B1, Canada
[2] Univ British Columbia, Vancouver, BC V6T 1Z4, Canada
来源：
CANADIAN JOURNAL OF ANIMAL SCIENCE | 2002年 / 82卷 / 04期
关键词：
enzymes; fresh substrate; dry matter degradation;
D O I：
10.4141/A02-030
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
An exogenous fibrolytic enzyme product was applied to three different proportions of a total mixed ration (TMR) and fed to dairy cows. There was no enhancement of the hydrolytic capacity of rumen fluid from cows serving as inoculum donors as a result of enzyme supplementation. In vitro dry matter degradation of the TMR at 12 h of incubation was increased by 15% when enzymes were added to the concentrate portion, and by 17% when added to the premix portion of the TMR (P < 0.05), but adding enzymes to the supplement (pelleted portion of the concentrate) had no effect.
引用
收藏
页码：611 / 615
页数：5
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