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The prediction of in vivo methane production and animal performance from the in vitro gas production technique

Published online by Cambridge University Press:  20 November 2017

A. Bortolozzo ,
D. K. Lovett ,
S. Lovell ,
L. Stack  and
F. P. O’Mara
A. Bortolozzo
Affiliation:
Department of Animal Science, Padova University, Padova, Italy.
D. K. Lovett*
Affiliation:
Department of Animal Science and Production, Lyons Research Farm, University College Dublin, Newcastle, Co. Dublin, Ireland.
S. Lovell
Affiliation:
Department of Animal Science and Production, Lyons Research Farm, University College Dublin, Newcastle, Co. Dublin, Ireland.
L. Stack
Affiliation:
Department of Animal Science and Production, Lyons Research Farm, University College Dublin, Newcastle, Co. Dublin, Ireland.
F. P. O’Mara
Affiliation:
Department of Animal Science and Production, Lyons Research Farm, University College Dublin, Newcastle, Co. Dublin, Ireland.
*
dan_lovett@talk21.com.
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Extract

The in vivo determination of methane (CH4) production requires specialist equipment which is costly to maintain. Whilst the in vitro gas production technique has been demonstrated to show potential to rank diets for their methanongenic potential at maintenance planes of nutrition (Moss and Givens, 1997) no study has investigated this relationship when feedstuffs are fed ad libitum. The objective of this study was to assess the ability of the technique to predict in vivo CH4 production and animal performance from six diets differing in their chemical composition.

Type
Feed Characterisation
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 157
Copyright
Copyright © The British Society of Animal Science 2003

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References

France, J., Dhanoa, M. S., Theodorou, M. K., Lister, S. J., Davies, D. R. and Isac, D. 1993. A model to interpret gas accumulation profiles associated with in vitro degradation of ruminant feed. Journal of Theoretical Biology. 163:99–111 Google Scholar
Mauricio, R. M., Mould, F. L., Dhanoa, M. S., Owen, E., Channa, K. S. and Theodorou, M. K. 1999 A semi-automated in vitro gas production technique for ruminant feedstuff evaluation. Animal Feed Science and Technology. 79:321–330.Google Scholar
Moss, A. R. and Givens, D. I. 1997. Methane production from a range of feedstuffs as determined in vitro using the cumulative gas production technique and compared with that measured in vivo. Pp 194. BSAS. Scarborough.Google Scholar