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Cows and cattle farming are a large source of methane, which is a potent greenhouse gas. A number of companies are working on ways to reduce these emissions — but is the best answer to just raise fewer cows?Get a daily digest of the latest news in tech, science, and technology, delivered right to your mailbox. Subscribe now.
This is why there is an urgent need to address methane emissions alongside CO2 emissions. Since efforts are underway to reduce dependence on fossil fuels such as coal and natural gas, scientists have turned their focus to the major source of methane emissions, animal farming.Cattle are ruminants, which means they have a four-chambered stomach. They do not have the enzymes needed to digest cellulose from the food they eat.
EM Muhammed, a professor at the Kerala Veterinary and Animal Sciences University in India teamed up with Rothamsted Research in the UK to determine which type of feed can help reduce methane emissions. Over two seasons, the researchers gave cattle three types of silage — compacted grass from three different pastures: a monoculture of perennial ryegrass , a mix of PRG with 30 percent white clover, and PRG mixed with other plant species.
Interestingly, the reduction in emissions was greater in cows that liked the seaweed, reaching 90% in some cases. In field studies, researchers also performed blind-tasting sessions to verify if the consumption of the seaweed changed the flavor of the milk produced, but none was observed.has taken a probiotic approach to reducing methane.
This approach could help reduce methane emissions by as much as 30% but is not commercially available yet. ArkeaBio claimed in an interview withhas a solution that can be used right away. The company has developed a wearable device for cattle that not only neutralizes the exhaled methane but also collects data about the cow’s health and nutrition., Francisco Norris, the CEO and Founder of Zelp, elaborated on the process.
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