Alternate H2 Sinks for Reducing Rumen Methanogenesis

摘要: Greenhouse gas (GHG) emissions from livestock is about 7,516 million metric tons CO2−eq. year−1 and has multiple components that include enteric methane emissions, nitrous oxide manure carbon dioxide associated with feed production grazing. An uninterruptedly increasing concentration (155 % more than preindustrial level), a comparatively high global warming potential short half-life of make it bit important any other GHG in the control climate change. Enteric mitigation not only point but also for saving animal dietary energy which otherwise lost form methane. Due to central regulatory role H2, generally referred as currency fermentation most strategies revolve around its or disposal such way ensure conservation into desirable end products. In chapter, an attempt made address prospects some emerging approaches redirect metabolic H2 away methanogenesis serve alternate sink rumen conserving energy. The sinks, instance, sulphate nitrate reduction reductive acetogenesis propionogenesis, are debated chapter along anticipated benefits can be achieved practically feasible 20 reduction.