Wetenschap - 1 januari 1970

Dutch cattle are windier than researchers thought

Dutch cattle are windier than researchers thought


Cattle produce more methane through their dung and wind emissions than has
previously been assumed. The gas emissions from dairy cattle sheds are at
least 25 percent higher than the figures currently used, according to
recent research by IMAG (Institute of Agricultural and Environmental
Engineering). IMAG took measurements on thirteen dairy farms, for the
Netherlands Agency for Energy and the Environment, Novem. The figures are
used to estimate the contribution of Dutch dairy farming to the greenhouse
effect.

“The models used at present assume an average annual methane emission of
about one hundred kilograms per cow. In conventional dairy farms we
measured an average methane emission of half a kilo per cow per day. On an
annual basis, even if the cattle are out in the field during the summer,
this works out at an annual emission of 125 kg per cow. And that figure
doesn’t even include the methane the cattle emit when they are out at
pasture,

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