title: Measuring Methane Production from Ruminants.
abstract: Radiative forcing of methane (CH4) is significantly higher than carbon dioxide (CO2) and its enteric production by ruminant livestock is one of the major sources of greenhouse gas emissions. CH4 is also an important marker of farming productivity, because it is associated with the conversion of feed to product in livestock. Consequently, measurement of enteric CH4 is emerging as an important research topic. In this review, we briefly describe the conversion of carbohydrate to CH4 by the bacterial community within gut, and highlight some of the key host-microbiome interactions. We then provide a picture of current progress in techniques for measuring enteric CH4, the context in which these technologies are used, and the challenges faced. We also discuss solutions to existing problems and new approaches currently in development.
authors.affiliation: Centre for Environmental Sustainability and Remediation, School of Applied Sciences, RMIT University, Melbourne, VIC, Australia; Ternes Agricultural Consulting Pty Ltd, Upwey, Melbourne, VIC, Australia.
authors.forename: Julian
authors.initials: J
authors.lastname: Hill
authors.affiliation: Commonwealth Scientific and Industrial Research Organisation (CSIRO), Brisbane, QLD, Australia.
authors.forename: Chris
authors.initials: C
authors.lastname: McSweeney
authors.affiliation: School of Animal and Comparative Biomedical Sciences, The University of Arizona, Tucson, AZ, USA.
authors.forename: André-Denis G
authors.initials: AG
authors.lastname: Wright
authors.affiliation: Commonwealth Scientific and Industrial Research Organisation (CSIRO), Brisbane, QLD, Australia.
authors.forename: Greg
authors.initials: G
authors.lastname: Bishop-Hurley
authors.affiliation: School of Electrical and Computer Engineering, RMIT University, Melbourne, VIC, Australia. Electronic address: kourosh.kalantar@rmit.edu.au.
authors.forename: Kourosh
authors.initials: K
authors.lastname: Kalantar-Zadeh
mesh_terms: D000818:Animals; D002245:Carbon Dioxide / Q000378:metabolism*; D058751:Livestock / Q000378:metabolism*; D053858:Metabolic Networks and Pathways; D008697:Methane / Q000032:analysis / Q000378:metabolism; D064307:Microbiota; D012418:Ruminants / Q000378:metabolism*
chemical_list: D002245:Carbon Dioxide; D008697:Methane
keywords: emissions; measurements; methane; methanogenesis; rumen