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首页> 外文期刊>ISRN Veterinary Science >The Benefits of Supplementary Fat in Feed Rations for Ruminants with Particular Focus on Reducing Levels of Methane Production
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The Benefits of Supplementary Fat in Feed Rations for Ruminants with Particular Focus on Reducing Levels of Methane Production

机译:反刍动物日粮中补充脂肪的益处,特别是降低甲烷的产生水平

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Methane (CH4), a highly potent greenhouse gas, has repeatedly been identified as a significant contributor to global warming. In this connection, ruminants, animals that produce large quantities of methane, have been singled out as an area for reduction with regard to their emissions to the atmosphere. In an analysis of recently published data, we identify the underlying mechanisms of methane production in ruminants and focus on the efficacy of different fat sources in terms of their ability to reduce methane production. Specific attention has been placed on in vivo studies involving cattle and sheep, as well as studies based on a large number of animals (>10), recorded over a longer period (>21 days), and employing reliable techniques for the quantification of methane production. Data clearly indicate that supplementary fat, given to ruminants inhibits methane production, with medium-chain fatty acids (laurin, myristic acid) as well as poly-unsaturated fatty acids (linoleic and especially linolenic acid) having a significant effect. It is also apparent that conflicting findings between individual published trials can largely be resolved when one takes into consideration differences in experimental design, the composition of the basic feeds, the fat sources used, and the number of animals involved.
机译:甲烷(CH4)是一种强效温室气体,已被反复确认为导致全球变暖的重要因素。在这方面,反刍动物,即产生大量甲烷的动物,被选为减少向大气排放的区域。在对最近发表的数据进行的分析中,我们确定了反刍动物中甲烷产生的潜在机制,并着眼于不同脂肪来源降低甲烷产生的能力,着力研究其有效性。特别关注涉及牛和羊的体内研究,以及基于大量动物(> 10),在较长时间(> 21天)内记录的研究,并采用可靠的甲烷定量技术生产。数据清楚地表明,用于反刍动物的补充脂肪会抑制甲烷的产生,其中中链脂肪酸(月桂酸,肉豆蔻酸)以及多不饱和脂肪酸(亚油酸,尤其是亚麻酸)具有明显的作用。同样显而易见的是,如果考虑到实验设计,基本饲料的成分,所用脂肪来源和所涉及动物的数量之间的差异,则可以在很大程度上解决各个已发表试验之间的矛盾发现。

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