期刊论文

中文

动物营养学报

1006-267X

2015

27

1

124-132

10.3969/j.issn.1006-267x.2015.01.016

国家自然科学基金面上项目（31172234） 湖南省自然科学基金面上项目（12JJ3025）

本校为第一机构

本试验旨在研究不同来源粗饲料发酵特性及对微生物细胞膜界面物理化学特性的影响。以小麦秸、玉米秸、水稻秆、苜蓿和桂牧一号为试验材料,采用体外发酵技术,研究不同粗饲料发酵48 h时体外发酵特性及发酵液微生物界面物理化学特性。结果表明:1)5种粗饲料体外发酵产气量及产气动力学参数[最大产气量(Vf)、产气曲线常数(b)、产气分率(k)、达到最大产气量1/2时所用时间(T_(0.5))、初始发酵产气分率(FRD_0)和达到最大产气量1/2时的发酵产气分率(FRDt_(0.5))]存在差异;Vf以桂牧一号最高,显著高于水稻秆(P玉米秸和桂牧一号>苜蓿的顺序显著降低(P

This experiment was conducted to investigate the effects of the species of forages on fermentation characteristics and the physical and chemical characteristics of microbes surface. The forages including wheat straw, corn stover, rice straw, alfalfa and Guimu-1 were selected as the substrate. The characteristics of forage fermentation and the physical and chemical characteristics of rumen microbes surface at 48 h fermentation time were recorded in an in vitro fermentation. The results showed as follows: 1) there was difference in gas pro-duction and gas production kinetic parameters [ the maxi...