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首页> 外文期刊>Livestock Science >Methane emission by growing pigs and adult sows as influenced by fermentation.
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Methane emission by growing pigs and adult sows as influenced by fermentation.

机译：受发酵影响的成年猪和成年母猪的甲烷排放。

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The fermentation of carbohydrates in pigs' digestive system, especially in the lower gut results predominantly in short chain fatty acids, gasses as CO2, H2 and CH4. Methane (CH4) is especially interesting as it contributes to the greenhouse gas emission and thus also to the global warming. CH4 production and its relation to fermentation in growing pigs (74 diets) as well as adult sows (36 diets), were investigated in diets varying greatly in chemical composition. All diets were assayed in digestibility and energy balance experiments in respiration chambers. Growing pigs fed diets varying in total fibre content (2.8-40%) had a CH4 production equivalent to 0.1 to 1.3% of digested energy (DE). Non-lactating sows fed at maintenance had a CH4 production equivalent to 0.4 to 3.3% of DE. Intensively fed lactating sows had the lowest CH4 production (about 0.6% of DE). In general, the production of methane depended on fibre origin, however high variation was found between animals..
机译：猪消化系统中碳水化合物的发酵，特别是在下肠道，主要产生短链脂肪酸，气体形式为CO2，H2和CH4。甲烷（CH4）尤其令人感兴趣，因为它会导致温室气体排放并进而导致全球变暖。在化学成分差异很大的日粮中研究了生长猪（74种日粮）和成年母猪（36种日粮）中CH4的产生及其与发酵的关系。所有饮食均在呼吸室内进行消化率和能量平衡实验的分析。用总纤维含量（2.8-40％）不同的日粮喂养的成年猪的CH4产生量相当于消化能（DE）的0.1％至1.3％。在维持状态下饲喂的非泌乳母猪的CH4产生量相当于DE的0.4％至3.3％。强化饲喂泌乳母猪的CH4产量最低（约占DE的0.6％）。通常，甲烷的产生取决于纤维的来源，但是动物之间的差异很大。

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