• CORRECTION: This story was updated on Aug. 11, 2015, to correct the type of microorganism that produces methane in a cow’s gut. Bacteria do not produce methane. Instead, methane is produced by microbes called archaea.
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Web Date: August 5, 2015

Feed Additive Curbs Methane Emissions From Dairy Cows

Sustainability: Small molecule reduces the animals’ production of powerful greenhouse gas by 30%
Department: Science & Technology
Keywords: methane, climate change, cows, agriculture science

Know what really stinks? The gas that livestock such as cattle release during digestion. These animals produce a quarter of the anthropogenic methane in the U.S.

What doesn’t stink is that Pennsylvania State University researchers, led by Alexander N. Hristrov, have now demonstrated that feeding 3-nitrooxypropanol (3NOP) to dairy cows over a 12-week period reduces the animals’ methane emissions by 30% (Proc. Natl. Acad. . . .

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