Effect of Fibrolytic Enzymes on Ruminal Fermentation and Milk Production of Dairy Cows

被引：0
|
作者：
Alvarez-Fuentes, G. [1 ]
Pinos-Rodriguez, J. M. [1 ]
Herrera, J. G. [2 ]
Garcia-Lopez, J. C. [1 ]
Barcena, R. [2 ]
Gonzalez, S. S. [2 ]
Perez, J. [2 ]
机构：
[1] Univ Autonoma San Luis Potosi, Inst Invest Zonas Desert, San Luis Potosi 78377, Mexico
[2] Colegio Postgrad, Montecillo 56230, Mexico
来源：
JOURNAL OF APPLIED ANIMAL RESEARCH | 2010年 / 38卷 / 01期
关键词：
Fibrolytic enzymes; milk production; ruminal fermentation; ALFALFA; BLOOD;
D O I：
暂无
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 aim of this study was to compare the effect of a fibrolytic enzymatic compound on ruminal fermentation and milk yield in dairy cows. Twelve Holstein cows (620 +/- 40 kg) were assigned to two experimental diets 1) Control (without fibrolytic enzymes); and 2) Enzymes (2 g kg dry matter). The experimental design was a cross-over design in which each experimental period was 32 d. Cows fed enzymes had similar (P>0.05) dry matter intake (14.4 vs 15.1 kg DM), milk yield (25 vs 23 kg), fat corrected milk (24.2 vs 22.37), milk fat (3.3 vs 2.3%), milk protein (3.2 vs 3.1%), ruminal pH, volatile fatty acids and ammonia N than control. Supplemental enzymes did not affect any parameters evaluated in dairy cows.
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收藏
页码：5 / 8
页数：4
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