Juicier Steaks Soon? The UK Approves Testing of Gene-Edited Cow Feed

"Juicier steaks could soon be served up after barley was given the go-ahead to become Britain's first gene-edited crop," reports the Telegraph: In an effort to fatten up cows and get them to market faster, scientists have altered the DNA of Golden Promise barley to increase its fat content... [Regulators have approved the feeding of that barley to cows for further studies.] [T]he small increase reduces the time it takes for farmers to raise animals for slaughter and increases the amount of milk and meat they produce to make the industry more profitable.

The gene-edited barley is also able to cut the amount of methane a cow produces, [Rothamsted Research professor/biochemist Peter] Eastmond said... Reducing methane from cattle is a major goal of the industry, and Professor Eastmond estimated his barley could cut the methane output from a single cow by up to 15%.

The two genetic tweaks to the barley are believed to alter the gut bacteria in cows' stomachs and reduce the amount of methane-generating microbes, cutting the cows' emissions.... [Eastmond] is also working on applying the same two gene edits to rye grass to create pastures and meadows which are lipid-rich and calorie-dense. This, he said, could lead to entire fields of gene-edited grass which could be grazed by cows, sheep, horses and goats to fatten them up and cut emissions... "It would be better to have this technology in a pasture grass that's grown to supply the livestock and graze it directly." The barley "has been modified to have a single letter of DNA removed from two different genes to switch them off," the article points out. "No genes have been added to its DNA and it is not considered to be genetically modified."

The article points out that Britain "has launched a push towards more gene-edited crops as a key post-Brexit freedom since splitting from the European Union," noting that U.K. scientists and private companies "have created products such as bread with fewer cancer-causing chemicals, longer-lasting strawberries and bananas, sweeter-tasting lettuce and disease-resistant potatoes, although these are yet to be granted permission to land on supermarket shelves..." But the EU has so far resisted the sale of any gene-edited crops in the EU.

Thanks to long-time Slashdot reader fjo3 for sharing the article.

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