Seasonal changes in dietary composition and rumen fermentation pattern of sheep on semi-arid rangeland

被引：0
|
作者：
Sankhyan, SK [1 ]
Bhatta, R [1 ]
Shinde, AK [1 ]
Karim, SA [1 ]
机构：
[1] Cent Sheep & Wool Res Inst, Avikanagar 304501, Rajasthan, India
来源：
INDIAN JOURNAL OF ANIMAL SCIENCES | 2001年 / 71卷 / 02期
关键词：
diet composition; rangeland; rumen fermentation; season;
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：
Two rumen cannulated sheep were grazed on semi-arid rangeland in a yearlong study to assess the seasonal changes in dietary composition and rumen fermentation pattern. Average CP, ADF and lignin content of the pasture during monsoon, winter and summer were 9.43, 4.50 and 3.80; 28.73, 51.38 and 53.84 and 4.60, 11.52 and 16.59% respectively. The pH values of the rumen liquor in monsoon, winter and summer season were 6.86, 6.90 and 7.11 respectively. Ammonia nitrogen (mg %) significantly (P<0.05) declined from 22.86 in monsoon to 5.28 in winter and 3.32 in summer. Total nitrogen (%) of rumen liquor in monsoon and winter was almost similar (2.1) and significantly (P<0.05) increased in summer (5.7). Total volatile fatty acids (TVFA) concentration (m mol/litre) increased from 71.45 in monsoon to 112.1 in summer. It is concluded that season has profound effect on dietary composition and rumen fermentation pattern of grazing sheep in semi-arid region.
引用
收藏
页码：162 / 164
页数：3
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