Diurnal variations in the activities of hydrolytic enzymes in different fractions of rumen contents of Murrah buffalo

被引：72

作者：

Agarwal, N ^{[1
]}

Agarwal, I ^{[1
]}

Kamra, DN ^{[1
]}

Chaudhary, LC ^{[1
]}

机构：

[1] Indian Vet Res Inst, Ctr Adv Studies Anim Nutr, Microbiol Sect, Izatnagar 243122, Uttar Pradesh, India

来源：

JOURNAL OF APPLIED ANIMAL RESEARCH | 2000年 / 18卷 / 01期

关键词：

Buffalo; rumen contents; carboxymethylcellulase; alpha-amylase; xylanase; microcrystalline cellulase; filter paper degrading activity; rumen enzymes;

D O I：

10.1080/09712119.2000.9706325

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 hydrolytic enzymes like carboxymethylcellulase, alpha-amylase, xylanase, microcrystalline cellulase and filter paper degrading activities were estimated in various fractions of rumen contents of Murrah buffalo. About 80-92% of the enzyme activities were associated with the particulate material, while only a negligible portion. (1-4%) was present as extracellular fraction in the liquid portion of rumen contents. Rest of the activities (8-15%) were associated with freely suspended microbial cells irt the liquid portion of the rumen contents. Maximum activities of carboxymethylcellulase, alpha-amylase, xylanase and micro-crystalline cellulase were observed at 2h post feeding while in the case of filter paper degrading activity, there was no difference in the activities in the first 4 hours of offering feed to the animals.

引用

页码：73 / 80

页数：8

共 14 条

[1]

AKIN DE, 1983, FED PROC, V42, P114

[2] MEASUREMENT IN SHEEP OF THE QUANTITY AND COMPOSITION OF RUMEN DIGESTA AND OF THE FRACTIONAL OUTFLOW RATES OF DIGESTA CONSTITUENTS [J].