Cow methane emissions halved by including seaweed to food regimen, creamery says

The operators of a California creamery found they may reduce the enteric methane emitted on their farm by over half by supplementing the cattle’s food regimen with pink seaweed.

After munching a wholesome portion of Asparagopsis taxiformis, cows on the Straus Household Creamery emitted 52% much less methane on common throughout the testing interval than when digesting a seaweed-less food regimen. A methane discount amounting to as a lot as 90% was additionally measured throughout the trial.

The creamery fed 24 of its cows a couple of quarter-pound of pink seaweed per day along with their typical 45-pound food regimen for 50 days in August and September. The cattle have been examined 4 occasions per day within the first-of-its-kind business trial utilizing pink seaweed on a dairy farm to find out its emissions impact.


Over seven weeks, the equal of 5 metric tons of carbon dioxide emissions was averted by way of a discount in enteric fermentation — a course of that causes cow burps.

“We have to set up electrical car charging stations all through the nation and change coal vegetation with cleaner vitality. However the Blue Ocean Barns seaweed answer is prepared proper now, it goes to work on local weather change instantly, and it’s economical,” mentioned Joan Salwen, the co-founder and CEO of seaweed complement maker Blue Ocean Barns, whose merchandise have been used within the trial.

Albert Straus, the creamery’s founder, mentioned the seaweed will assist him set up a web carbon-neutral farm by 2023.

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“This mannequin will display that dairy farming and animals are one of many important local weather change options we want whereas offering high-quality natural meals,” Straus mentioned.

Agriculture amounted to some 10% of whole U.S. greenhouse gasoline emissions in 2019, in response to information from the Environmental Safety Company , and enteric fermentation was liable for greater than 1 / 4 of these emissions.

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