2019年7月22日 · Researchers looked at more than 1,000 cows on farms throughout Europe, and found they had a large proportion of their gut bacteria in common. By inoculating calves with targeted probiotics, the scientists suggest the mix of microbes could be altered, and the volume of methane produced limited.

2024年9月9日 · That’s the primary way bovines expel methane, a particularly potent greenhouse gas, though there are others. The Danish Government announced an agreement in June to tax livestock emissions starting at an annual rate of about €16 per tonne, or nearly €100 per cow. It would be a novel experiment.

2017年8月2日 · Methane emissions represent wasted energy, and reducing them could help the cows to be more efficient in processing their feed. This could potentially both help them grow stronger and reduce the amount of feed they need – cutting costs for cattle farmers.

Methane’s pulse. The team collected samples of methane from settings such as lakes, swamps, natural gas reservoirs, the digestive tracts of cows, and deep ancient groundwater, as well as methane made by microbes in the lab. The group noticed something surprising and unexpected in …

2021年3月19日 · Methane production in the rumen increases with rising levels of forage in cows’ diet, so we wanted to see whether forage levels also affected how well seaweed reduced overall methane formation. Methane emissions from cattle on high-forage diets decreased by 33% to 52%, depending on how much seaweed they consumed.

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2019年6月18日 · Methane is more than 25 times more effective as a greenhouse gas than the headline-grabbing carbon dioxide (CO2). However, once in the atmosphere, it reacts with other chemicals in the air and breaks down after just a few years.

2015年6月24日 · In nature, microorganisms known as methanogens convert simple forms of carbon to methane (CH4). Methane production, or methanogenesis, happens in the absence of oxygen. So waterlogged soils (such as bogs or rice paddies) tend to produce more methane, as do methanogens that live in the rumen (stomach) of ruminant animals, such as cows and sheep.

2022年11月1日 · The plan will include methane, which is produced when sheep and cows expel excess air into the atmosphere, Reuters says. The country has around 36 million sheep and cattle, and nearly half of its emissions come from agriculture, mainly in the form of methane.

2022年2月9日 · This is called circular agriculture, diverting materials from landfills, which produce 20% of the global anthropogenic methane emission and are the second highest producers of greenhouse gas. Using insects as inputs for another function closes the cycle and also positively impacts climate change.