Seaweed cattle feed reduces cow emissions

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In California, researchers at the University of California, Davis have identified seaweed as, maybe, the new super food that dairy cattle need to reduce the amount of methane they burp into the atmosphere. Early results indicate that just a touch of the ocean algae in cattle feed could dramatically cut greenhouse gas emissions from California’s 1.8 million dairy cows.

“This is a very surprising and promising development,” said animal science professor and Sesnon Endowed Chair Ermias Kebreab inside the UC Davis dairy barn where he is testing seaweed with 12 Holstein cows.

“Results are not final, but so far we are seeing substantial emission reductions. This could help California’s dairy farmers meet new methane-emission standards and sustainably produce the dairy products we need to feed the world. Since much of a dairy’s methane emissions come from the animal itself, nutrition can play a big role in finding solutions,” said Kebreab.