| 中链脂肪酸对体外发酵甲烷产量的影响 |
| |
| 引用本文： | 李玉珠,刘发央,龙瑞军.中链脂肪酸对体外发酵甲烷产量的影响[J].家畜生态,2007(1). |
| |
| 作者姓名： | 李玉珠 刘发央 龙瑞军 |
| |
| 作者单位： | 甘肃农业大学草业学院，甘肃农业大学生命科技学院，甘肃农业大学草业学院 甘肃兰州730070，甘肃兰州730070，甘肃兰州730070，中国科学院西北高原生物研究所，青海西宁810001 |
| |
| 基金项目： | IAEACPR-12666/RO项目资助 |
| |
| 摘 要： | 利用人工瘤胃体外产气法研究不同精粗比(0:1和1:1)日粮类型时中链脂肪酸对甲烷产量的影响。结果显示,体外培养24h,添加脂肪酸对甲烷产量的抑制作用不受日粮类型的影响(P>0.05);与不添加酸的对照相比,添加50mg未酯化月桂酸(C12:0)及月桂酸和肉豆蔻酸(C14:0)以3:2的比例组成的混合物(50mg)可分别抑制甲烷产量的22.2%(P<0.01)和11.8%(P<0.05);添加50 mg未酯化C14:0使甲烷产量降低3.4%(P>0.05);不同日粮类型上饲料产气量、瘤胃液pH值和氨氮浓度差异显著(P<0.01)。
|
| 关 键 词： | 中链脂肪酸 甲烷产量 体外产气法 日粮类型 |
Effects of Medium-Chain Fatty Acids on Rumen Methane Yield |
| |
| LI Yu-zhu,LIU Fang-yang,LONG Rui-jun.Effects of Medium-Chain Fatty Acids on Rumen Methane Yield[J].Ecology of Domestic Animal,2007(1). |
| |
| Authors: | LI Yu-zhu LIU Fang-yang LONG Rui-jun |
| |
| Institution: | LI Yu-zhu1,LIU Fang-yang2,LONG Rui-jun1,3* |
| |
| Abstract: | The methane-suppressing effects of medium-chain fatty acids(MCFA) were investigated using basal diets of extensive type and intensive type by the Hohenheim gas test apparatus.The results suggest that without interaction(P>0.05) between diet types and methane-suppressing impacts with MCFA supplementation were observed at 24 h incubation.Compared to control,50 mg non-esterified lauric acid(C12:0),50 mg non-esterified myristic acid(C14:0) and their mixture at a ratio of 3:2 supplementations suppressed methane yield in vitro by 22.2%(P<0.01),11.8%(P<0.05) and 3.4%(P>0.05) individually.In vitro gas production,pH value and ammonium were significantly different(P<0.01) when diet type from extensive to intensive. |
| |
| Keywords: | MCFA methane yield In Vitro gas production method diet type |
| 本文献已被 CNKI 等数据库收录！ |
