首页> 美国卫生研究院文献>Journal of Animal Science and Biotechnology >Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility nitrogen balance rumen fermentation microbiota and methane emissions in goats
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Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility nitrogen balance rumen fermentation microbiota and methane emissions in goats

机译:尿素加硝酸盐预处理的稻草和玉米油的添加对山羊纤维消化率氮平衡瘤胃发酵微生物群和甲烷排放的影响

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摘要

BackgroundUrea pretreatment is an efficient strategy to improve fiber digestibility of low quality roughages for ruminants. Nitrate and oil are usually used to inhibit enteric methane (CH4) emissions from ruminants. The objective of this study was to examine the combined effects of urea plus nitrate pretreated rice straw and corn oil supplementation to the diet on nutrient digestibility, nitrogen (N) balance, CH4 emissions, ruminal fermentation characteristics and microbiota in goats. Nine female goats were used in a triple 3 × 3 Latin Square design (27 d periods). The treatments were: control (untreated rice straw, no added corn oil), rice straw pretreated with urea and nitrate (34 and 4.7 g/kg of rice straw on a dry matter [DM] basis, respectively, UN), and UN diet supplemented with corn oil (15 g/kg soybean and 15 g/kg corn were replaced by 30 g/kg corn oil, DM basis, UNCO).
机译:背景尿素预处理是提高反刍动物低质粗饲料纤维消化率的有效策略。硝酸盐和油通常用于抑制反刍动物的肠甲烷(CH4)排放。这项研究的目的是检验尿素加硝酸盐预处理的稻草和玉米油补充日粮对山羊养分消化率,氮(N)平衡,CH4排放,瘤胃发酵特性和微生物群的综合影响。九只母山羊用于3××3的三拉丁方形设计(27天周期)。处理方法为:对照(未经处理的稻草,不添加玉米油),用尿素和硝酸盐(分别以干物质[DM]为基础的稻草分别为34和4.7μg/ kg预处理​​)的稻草,联合国)和联合国饮食补充玉米油(将15微克/千克大豆和15微克/千克玉米替换为30微克/千克玉米油,以DM为基础,UNCO)。

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