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Methane gas from cows -- the proof is in the poo
Date:6/6/2011

bolism and this is then released by the animal as burping and flatulence.

Principal investigator, Dr Ian Bull of Bristol's School of Chemistry said: "We initially detected archaeol in the faeces of several foregut fermenters including camels, cows, giraffes, sheep and llamas. We then expanded the study to evaluate the quantities of this compound in the faeces of cows with different diets.

"Two groups of cows were fed on different diets and then their methane production and faecal archaeol concentration were measured. The animals that were allowed to graze on as much silage as they wanted emitted significantly more methane and produced faeces with higher concentrations of archaeol than those given a fixed amount of silage, supplemented by concentrate feed.

"This confirms that manipulating the diet of domestic livestock could also be an important way of controlling methane gas emissions."


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Contact: Hannah Isom
h.isom@leeds.ac.uk
44-011-334-35764
University of Leeds
Source:Eurekalert

Page: 1 2

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