Reducing methane output in dairy cows

Dairy cows at Harper Adams have been wearing special backpacks to monitor their methane output, in hope of finding a way to reduce greenhouse gases. Researchers at the Shropshire-based University College are hoping that the project will indicate which feeds and substrates produce the least amount of rumination, and in turn, fewer greenhouse gases. Dairy cows can produce up to 500 litres (356g) of methane per day, a gas which has a global warming potential much greater than that of carbon dioxide. Prof