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首页> 外文期刊>The Proceedings of the New Zealand Society of Animal Production >Fumarate reduces methane production from pasture fermented in continuous culture
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Fumarate reduces methane production from pasture fermented in continuous culture

机译：富马酸酯减少了连续培养的牧场中甲烷的产生

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摘要

This experiment tested the hypothesis that addition of an organic acid (fumarate) would increase the energy captured from a pasture diet during ruminal fermentation. Pasture was fermented with 0, 10, 20, or 30 mM of fumarate constantly infused into four dual-flow continuous culture fermenters. Digestion characteristics responded linearly (P<0.05) as fumarate increased from 0 to 30 mM. Increasing fumarate from 0 to 30 mM reduced (P=0.057) methane production by 38%, and reduced the ratio of acetate:propionate (2.4 v.s. 1.5). Concentrations of propionate and total volatile fatty acids increased by 74% and 19%, respectively. These results were consistent with fumarate acting as an electron-accepting intermediary in the succinate-propionate pathway. Theaddition of fumarate increased energy capture from a pasture diet by improving the supply of glucogenic compounds and reducing losses to methane emissions.
机译：该实验检验了以下假设：在瘤胃发酵过程中添加有机酸（富马酸酯）会增加从牧场饮食中捕获的能量。将0、10、20或30 mM的富马酸酯不断地注入四个双流连续培养发酵罐中，从而对牧场进行发酵。随着富马酸盐从0增加到30 mM，消化特性线性响应（P <0.05）。将富马酸酯从0增加到30 mM可使甲烷生成量降低（P = 0.057）38％，并降低了乙酸盐：丙酸盐的比例（2.4对1.5）。丙酸酯和总挥发性脂肪酸的浓度分别增加了74％和19％。这些结果与富马酸酯在琥珀酸-丙酸酯途径中作为电子接受中间体的作用是一致的。富马酸酯的添加通过改善生糖化合物的供应并减少甲烷排放损失而增加了从牧场饮食中捕获的能量。

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