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Results of a mechanistic model estimating methane in relation to methane emissions measured in dairy cows

Hindrichsen, I. K., Mills, J. A. N., Madsen, J., Kreuzer, M. and Dijkstra, J. (2004) Results of a mechanistic model estimating methane in relation to methane emissions measured in dairy cows. Journal of Animal and Feed Sciences, 13. pp. 99-102. ISSN 1230-1388

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Abstract/Summary

This investigation determines the accuracy of estimation of methanogenesis by a dynamic mechanistic model with real data determined in a respiration trial, where cows were fed a wide range of different carbohydrates included in the concentrates. The model was able to predict ECM (Energy corrected milk) very well, while the NDF digestibility of fibrous feed was less well predicted. Methane emissions were predicted quite well, with the exception of one diet containing wheat. The mechanistic model is therefore a helpful tool to estimate methanogenesis based on chemical analysis and dry matter intake, but the prediction can still be improved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Agriculture, Policy and Development
ID Code:8670
Uncontrolled Keywords:methane, carbohydrate, mechanistic model

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