Scientists are monitoring cows' BURPS in the hope of breeding 'low emission' varieties of cattle and cutting greenhouse gas emissions


         Four-week trial in New Zealand is tracking methane emissions from 300 bulls

         Those that emit the lowest methane will be favoured for lower-methane breeding

         Methane (CH4) is a stronger greenhouse gas than even carbon dioxide (CO2)


By Jonathan Chadwick For Mailonline (UK)

28 April 2021


Scientists are monitoring cow burps in the hope of breeding 'low emission' varieties of cattle to help the battle against climate change.


Two cattle companies in New Zealand Livestock Improvement Corporation (LIC) and CRV Ambreed have partnered to monitor the methane emitted by bulls in a four-week trial.


Those bulls that emit the lowest methane could be used in the breeding of future generations of ultra-low emission dairy cows.


Cows, pigs and other farm animals release huge amounts of methane a greenhouse gas into the atmosphere through burps and farts.


While there is less methane in the atmosphere than other greenhouse gases, it is around 25 times more effective than carbon dioxide (CO2) at trapping heat making it a powerful driver of global warming and climate change.


As well as livestock, sources of methane include fossil fuels like coal, oil spills and the decay of organic waste in municipal solid waste landfills...