2023年11月7日 · According to a peer-reviewed study, an animal-free agricultural system would shave just 2.6 percent off the country’s total greenhouse gas emissions.

2019年6月27日 · Kebreab, Mitloehner and other UC Davis scientists are looking for ways to make cows more sustainable and less gassy. One way to do that is to make their high-fiber diet easier to digest, so scientists often turn to feed supplements for this purpose. It sounds simple, but finding an affordable and nutritious additive has proved difficult.

2024年4月23日 · A Curtin University study has revealed breeding less-flatulent cows and restoring agricultural land could significantly reduce rising methane emission levels, which play a considerable role in...

2016年5月10日 · Although cows are net greenhouse gas emitters, improved breeding and technology practices continue to generate more efficient cows that will continue to bring the dairy sector closer to becoming net zero emitters. In this article, intended and unintended consequences of waking up to a world without cows are explored.

2017年6月9日 · One part of the project aims to increase feed efficiency—growing cows as big as possible with as little food as possible—and reduce emissions of methane, a greenhouse gas that traps 30 times more...

2017年3月28日 · There are fewer than half as many dairy cows in the United States as there were back then, but now they produce almost twice as much milk. One of the reasons for this huge rise in milk production, said dairy expert Mark Stephenson, is the introduction of artificial insemination.

2018年4月19日 · Nutritional mitigations strategies have been researched extensively over the years. Think of the addition of feed additives, ionophores, fats, the use of high quality forages, and the increased use of grains. And also simply increase the milk yield per cow (and hence the need for less cows) reduces the output of CO 2.

2019年8月13日 · One reason is that grass-fed cows gain weight more slowly, so they produce more methane (mostly in the form of belches) over their longer lifespans.

2019年7月4日 · Cows that have been genetically modified so they burp and fart less could have a major impact on climate change—potentially helping to reduce global warming by cutting methane emissions by half...

Studies have shown that grass-fed cattle produce 20% more methane in their lifetime than grain-fed cattle. This is due to two different factors: 1) cattle naturally emit more methane when digesting grass. 2) grass-fed cattle reach market weight more slowly than feedlot cattle, so they’re emitting methane over a longer time (Marshall, 2010).