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Effects of dietary protein concentration on energetic efficiency and methane emission in lactating dairy cows

Published online by Cambridge University Press:  22 November 2017

T Yan*
Affiliation:
Agri-Food and Biosciences Institute, Hillsborough, Co Down BT26 6DR, United Kingdom
F J Young
Affiliation:
Agri-Food and Biosciences Institute, Hillsborough, Co Down BT26 6DR, United Kingdom
D C Patterson
Affiliation:
Agri-Food and Biosciences Institute, Hillsborough, Co Down BT26 6DR, United Kingdom
C S Mayne
Affiliation:
Agri-Food and Biosciences Institute, Hillsborough, Co Down BT26 6DR, United Kingdom
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Extract

A series of studies have been undertaken to examine effects of dietary protein source and concentration on milk production, energy and nitrogen (N) utilisation efficiencies and fertility in dairy cows. The present study evaluated effects of dietary crude protein (CP) concentration on energetic efficiency and methane emission in lactating dairy cows.

Type
Theatre Presentations
Copyright
Copyright © The British Society of Animal Science 2009

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References

Agnew, R. E., Yan, T., France, J., Kebreab, E. and Thomas, C. 2004. Energy requirement and supply. In: ed. Thomas, C., Feed into milk: a new applied feeding system for dairy cows, pp.11–20. Nottingham University Press, Nottingham, UK.Google Scholar
Law, R. A., Young, F. J., Patterson1, D. C., Kilpatrick, D. J. Wylie, A. R. G. and Mayne, C. S. 2008. Effect of dietary protein content on animal production and blood metabolites of dairy cows during lactation. Journal of Dairy Science. (In press).Google Scholar