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Methane Production in Dairy Cows

US Department of Agriculture, Science and Education Administration Agricultural Research, Animal Science Institute, Ruminant Nutrition Laboratory, Beltsville, MD 20705

ABSTRACT

The relationship among diet composition, intake, and methane production was investigated with data during 404 total energy balance trials with Holstein cows. Methane production in all trial was measure in open circuit respiration chambers. The most useful predictor of total methane productin was amounts of soluble residue, hemicellulose, and cellulose that apparently were digested. The regression was methane (Mcal) = .439 + .273 ± .015 kg digestible soluble residue + .512 ± .078 kg digestible hemicellulose + 1.393 ± .097 kg digestible cellulose.

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