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The effect of absence of protozoa on methane emissions by lambs

Published online by Cambridge University Press:  23 November 2017

D.R. Yanez-Ruiz ,
K.J. Hart ,
A. Belanche ,
A.I. Martin-Garcia  and
C.J. Newbold
D.R. Yanez-Ruiz*
Affiliation:
Institute of Rural Sciences, University of Wales, Aberystwyth, United Kingdom
K.J. Hart
Affiliation:
University of Saskatchewan, Saskatoon, Canada
A. Belanche
Affiliation:
Universidad de Zaragoza, Zaragoza, Spain
A.I. Martin-Garcia
Affiliation:
Estacion Experimental del Zaidin, CSIC, Granada, Spain
C.J. Newbold
Affiliation:
Institute of Rural Sciences, University of Wales, Aberystwyth, United Kingdom
*
Email:[email protected]
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Extract

Livestock are one of the largest single sources of methane emission, equivalent to 15-20 % of total anthropogenic methane. Selective suppression of the rumen protozoa has been suggested to be promising approach to reduce methane release (Moss et al., 2000) as up to 25 % of the methanogens in the rumen are associated with protozoa (Newbold et al., 1995). However, contradictory results have been reported between in vitro and in vivo data and short and long term defaunation experiments (Ranilla et al., 2003). This study was carried out to investigate the effect of the absence of protozoa in the rumen on enteric methane production by lambs.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 47
Copyright
Copyright © The British Society of Animal Science 2007

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References

Moss, AR, Jouany, JP and Newbold, CJ. 2000. Methane production by ruminants: its contribution to global warming. Annals Zootechnie. 49, 231–253.CrossRefGoogle Scholar
Newbold, CJ, Lassalas, B. and Jouany, JP. 1995. The importance of of methanogenethsis associated with ciliate protozoa in ruminal methane production in vitro . Letters Applied Microbiology. 21, 230–234.Google Scholar
Ranilla, MJ, Morgavi, DP and Jouany, JP. 2003. Effect of time after defaunation on methane production in vitro . Reproduction, Nutrition and Development. 44 (Supl 1), 60.Google Scholar