Post by warriorwitch on Jul 10, 2007 12:14:48 GMT
Burping cows 'harming environment'
« Thread Started Today at 6:55am »
--------------------------------------------------------------------------------
Burping cows 'harming environment'
ITN - Tuesday, July 10 09:12 amCows could be doing more damage to the environment than four-wheel-drive cars, scientists have warned.
Methane emissions from cattle account for a quarter of the gas in our air and researchers are trying to find a new way to feed cattle which leads to less belching.
Michael Abberton of the Institute of Grassland and Environmental Research said the key is developing new varieties of food that are easier for cattle to digest and also provide a proper balance of fibre, protein and sugar.
He told a briefing on farming and climate change at London's Science Media Centre that this could open up plant-based solutions as alternatives to reducing stock as farmers look for ways to cut methane emissions amid warming climates.
Mr Abberton said the average dairy cow belches out about 100 to 200 litres of methane each day, making diet changes a key potential factor in reducing this greenhouse gas.
"There is a common misperception about how methane gets into the atmosphere," he said. "It is actually through belching rather than the other end," he said.
He said introducing easier-to-digest legumes that tend to reduce methane emissions is an example of an approach scientists are beginning to explore. Legumes such as clover and alfalfa are commonly used for animal fodder.
It also requires farmers to balance cows' legume intake with other food and to develop different species of grass that are also more digestible, he added.
"What I'm saying is there are approaches within plant breeding that can lead to reduced emissions," said Mr Abberton.
« Thread Started Today at 6:55am »
--------------------------------------------------------------------------------
Burping cows 'harming environment'
ITN - Tuesday, July 10 09:12 amCows could be doing more damage to the environment than four-wheel-drive cars, scientists have warned.
Methane emissions from cattle account for a quarter of the gas in our air and researchers are trying to find a new way to feed cattle which leads to less belching.
Michael Abberton of the Institute of Grassland and Environmental Research said the key is developing new varieties of food that are easier for cattle to digest and also provide a proper balance of fibre, protein and sugar.
He told a briefing on farming and climate change at London's Science Media Centre that this could open up plant-based solutions as alternatives to reducing stock as farmers look for ways to cut methane emissions amid warming climates.
Mr Abberton said the average dairy cow belches out about 100 to 200 litres of methane each day, making diet changes a key potential factor in reducing this greenhouse gas.
"There is a common misperception about how methane gets into the atmosphere," he said. "It is actually through belching rather than the other end," he said.
He said introducing easier-to-digest legumes that tend to reduce methane emissions is an example of an approach scientists are beginning to explore. Legumes such as clover and alfalfa are commonly used for animal fodder.
It also requires farmers to balance cows' legume intake with other food and to develop different species of grass that are also more digestible, he added.
"What I'm saying is there are approaches within plant breeding that can lead to reduced emissions," said Mr Abberton.