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首页> 外文会议>4th international symposium on dairy cow nutrition and milk quality proceedings >Methanogenesis and Hydrogenotrophy in Ruminant Livestock
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Methanogenesis and Hydrogenotrophy in Ruminant Livestock

机译：反刍动物的产甲烷和氢营养。

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摘要

Methane is a potent greenhouse gas and is implicated in global warming.Ruminant livestock are the focus of mitigation strategies since they are the main source of anthropogenic methane emissions globally.Methanogenesis is a critical component of the energetically efficient process of anaerobic microbial degradation of plant cell walls in the digestive tract of ruminants.Management of H2 in the rumen is the most important factor to be considered when developing strategies to control ruminant methane emissions.We have been examining the effects of increased hydrogen concentration on digestion,fermentation and microbial communities in the rumen by using an anti-methanogenic compound to suppress methanogenesis.Recent studies on the diversity of rumen methanogens has demonstrated that this functional group is represented by several taxonomic orders including the Methanobacteriales,Methanomicrobiales,Methanosarcinales and a large group of uncultured archaea which are similar but distinct from the Thermoplasmatales.Through the use of metagenomic and culture based technologies,we have gained a better understanding of the physiology of these uncultured methanogens.These studies are providing new knowledge about hydrogenotrophic rumen microbial populations which will aid in the development of strategies to reduce methanogenesis.
机译：甲烷是一种有力的温室气体，与全球变暖息息相关。反刍动物是缓解策略的重点，因为它们是全球人为甲烷排放的主要来源。甲烷生成是植物细胞厌氧微生物降解能效高效过程的关键组成部分在制定控制反刍动物甲烷排放的策略时，要考虑最重要的因素是瘤胃中的H2的管理。我们一直在研究氢浓度升高对反刍动物消化，发酵和微生物群落的影响。瘤胃产甲烷菌多样性的最新研究表明，该功能基团由几个分类学顺序代表，包括甲烷细菌，甲烷微生物，甲烷藻和一大批未经培养的古细菌，它们相似但很相似。来回通过使用宏基因组学和基于文化的技术，我们对这些未培养的产甲烷菌的生理学有了更好的了解。这些研究为氢营养瘤胃微生物群体提供了新知识，这将有助于减少甲烷生成的策略的发展。 。

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