SHORT COMMUNICATION
Results of a mechanistic model estimating methane in
relation to methane emissions measured in dairy cows
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1
Institute of Animal Science, Animal Nutrition, Swiss Federal Institute of Technology (ETH),
ETH Centre/LFW, CH-8092 Zurich, Switzerland
2
University of Reading, Centre for Dairy Research, Department of Agriculture,
Earley Gate, P.O. Box 236, Reading RG6 6AT, UK
3
Department of Animal Science and Animal Health, Royal Veterinary and Agricultural University (KVL),
Grønnegårdsvej 2, DK-1870 Frederiksberg, Denmark
4
WIAS Animal Nutrition, Wageningen University,
P.O. Box 338, Marijkeweg 40, 6700 AH Wageningen, The Netherlands
Publication date: 2004-08-30
Corresponding author
I. K. Hindrichsen
Institute of Animal Science, Animal Nutrition, Swiss Federal Institute of Technology (ETH),
ETH Centre/LFW, CH-8092 Zurich, Switzerland
J. Anim. Feed Sci. 2004;13(Suppl. 1):99-102
KEYWORDS
ABSTRACT
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.
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