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Livestock farming is a major source of greenhouse gas emissions worldwide because ruminants like sheep and cattle produce methane as a byproduct of digestion. Supplementing the diet of beef cattle with red seaweed can more than halve methane emissions without compromising meat quality, according to a study, publishing March 17, 2021 in the open-access journal
PLOS ONE, by Breanna Roque from the University of California and colleagues.
The researchers fed twenty-one Angus-Hereford beef bullocks their usual diet of hay, grains, and corn, supplemented with either zero, low, or high concentrations of red seaweed (Asparagopsis taxiformis). They measured the quantity of methane, hydrogen, and carbon dioxide released by individual bullocks periodically for 21 weeks and found that seaweed supplements reduced methane emissions by between 45 percent and 68 percent. The proportion of forage in the base diet also influenced emissions; the greatest reductions were found with a high s
CaliforniaUnited-statesBreanna-roqueUniversity-of-californiaGrantham-foundationLucile-packard-foundationElm-innovationsFinancial-supportAgricultureகலிஃபோர்னியாஒன்றுபட்டது-மாநிலங்களில்ப்ரென்னா-ரோக்