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Prediction of methane emissions from dairy cows using multiple regression analysis

  • C. M. Yates (a1), S. B. Cammell (a2), J. France (a1) and D. E. Beever (a1)


The UK is bound by the UN Framework Convention on climate change to reduce methane emissions to below 1990 levels by the year 2000. The Kyoto protocol requires a further cut of 12.5% by 2010. Ruminants are estimated to produce 74 Tg of methane per year (Benchar et al. 1998) which represents about 15% of total emissions (Crutzen et al., 1986). Therefore any reduction in the release of methane gas by enteric fermentation from the dairy herd is environmentally important. The objective of this study was to use data obtained from calorimetry trials to generate multiple regression equations predicting the levels and variability of methane emissions from dairy cows.



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Benchar, C., Rivest, J., Pomar, C. and Chiquette, J. 1998. Prediction of methane production from dairy cows using existing mechanistic models and regression equations. Journal of Animal Science 76: 617627.
Cammell, S. B., Thomson, D. J., Beever, D. E., Haines, M. J., Dhanoa, M. S. and Spooner, M. C. 1986. The efficiency of energy utilisation in growing cattle consuming fresh perennial ryegrass (Lolium perenne cv Melle) or white clover (Trifolium repens cv Blanca). British Journal of Nutrition 55: 669680.
Crutzen, P. J., Aselmann, I. and Seiler, W. 1986. Methane production by domestic animals, wild ruminants, other herbivorous fauna and humans. Tellus 38B: 271284.


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