Diet change cuts methane emissions in cow burps

 

Emission mission … the new additive has helped slash the cows’ methane output. Photo: Eddie Jim

Diet change cuts methane emissions in cow burps

Change to cow diet cuts methane emissions

August 4, 2015 Darren Gray

With the dairy, beef and sheep industries responsible for 11 per cent of Australia’s greenhouse gas emissions, scientists are striving to reduce greenhouse gas emissions from agriculture and may have found the answer. A team of Victorian and international scientists has found that a new additive included in a dairy cow’s diet can cut the cow’s methane emissions when it belches by almost one third. The breakthrough, confirmed in a recent experiment, could eventually have significant ramifications for Australia’s livestock industries as scientists aim to cut greenhouse gas emissions and tackle global warming. With the dairy, beef and sheep industries responsible for 11 per cent of Australia’s greenhouse gas emissions, scientists are striving to reduce greenhouse gas emissions from agriculture. The 30 per cent cut in methane emissions was observed during a 12 week experiment in which the daily diet of hungry dairy cows received a minor, but beneficial tweak. About one gram of the methane inhibitor 3-nitrooxypropanol, known as NOP, was added to the daily 28 kilogram of dry matter fed to each cow….

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