Measuring methane production from ruminants

Measuring Methane Production from Ruminants
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Mapfumo, L. Muchenje, J.


We then provide a picture of current progress in techniques for measuring enteric CH4, the context Significance of Enteric Methane Production by Ruminants. PDF | Radiative forcing of methane (CH4) is significantly higher than carbon dioxide (CO2) and its enteric production by ruminant livestock is.

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Ruminant Digestion - Methane

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1. Introduction

Chamber measurements are costly in comparison to other measurement techniques and prediction methods, and therefore methane predictions using mechanistic models describing rumen fermentation are recognised at present as being more applicable to different feeds and animal species. Trevor W. All protocols and procedures followed in this study were according to the ethical principles for use of animals in experiments established by the Committee of Ethics on Animal Use. Bakken Shale Gvakharia et al. Gordon, Alistair F.

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Comparative Biochemistry and Physiology Part A — Download references. We greatly appreciate Stephen Johnson who offered us the opportunity to work with his Boran cows. We also would like to acknowledge all stockmen from Honeydale farm for helping availing the Nguni cows. This work was presented at the South African Society for Animal Science, Boardwalk, Port Elizabeth 18 to 21 September , and therefore, the authors would like to thank the Govan Mbeki Research and Development Centre for funding the leading author attend the conference.

LM conceptualised the idea, carried out the study and wrote the manuscript; VM helped in conceptualising the idea behind the study, sourced funding and compilation and editing of the manuscript; JFM helped in conceptualising the idea and editing of the manuscript; MMS helped in laying out the experimental design and editing of the manuscript; SMG helped in the use of the LMD in methane measurements.

All authors read and approved the final manuscript. Correspondence to L.

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The authors of this article declare no conflict of interest with any organisation or entity with any financial or non-financial support to the study. The grant holder also acknowledges that opinions, findings and conclusions or recommendations expressed in this publication are of the authors and that the sponsors hold no liability whatsoever in this regard. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Reprints and Permissions. Search all SpringerOpen articles Search. Short report Open Access Published: 18 May Enteric methane output from selected herds of beef cattle raised under extensive arid rangelands L. Mapfumo 1 , S. Grobler 2 , J. Mupangwa 1 , M. Abstract Extensively raised beef cattle contribute to the highest levels of enteric methane CH 4 gas emissions among all livestock. Introduction Currently, available information on enteric methane CH 4 output from extensively raised beef cattle under extensive arid and semi-arid African environments varies from limited to non-existent. Study area The first herd herd 1 was composed of Boran cows, sourced from the Edendale farm which is in Fort Beaufort at Materials and methods All protocols and procedures followed in this study were according to the ethical principles for use of animals in experiments established by the Committee of Ethics on Animal Use.

Table 1 The weather conditions during the trial period at the two farms occupied by the Boran and Nguni cows Full size table.

A comparison of methodologies for measuring methane emissions from ruminants

Figure 1. Full size image. Table 2 Ratio of methane output per kilogramme DMI and methane output per kilogramme of live weight from the two herds Full size table. Figure 2. Discussion The values for the CH 4 output found in this study are within the range of reports from other studies. References Acocks, J. Article Google Scholar Basson, M. Article Google Scholar Chagunda, M. The methane mitigation strategies require robust prediction of emissions from rumen. There are many methods available which would be suitable for measuring CH4 produced from the various stages of animal production.