Study on Seaweed Additive for Methane Reduction in Grazing Cattle in Yuba County
A new project in Yuba County investigates the effectiveness of red seaweed (Asparagopsis taxiformis) as a methane-reducing additive for grazing cattle. Previous studies indicated a potential 90% reduction in methane emissions, but results were in controlled environments. The current study aims to find reliable delivery methods on open rangelands and will evaluate the palatability of the seaweed/mineral supplement mix through trials, with subsequent phases focused on consumption consistency, methane reduction, and livestock performance.

A project in Yuba County explores the use of red seaweed (Asparagopsis taxiformis) to reduce methane emissions in grazing cattle. Previous findings suggested a 90% reduction in methane in controlled settings.
Researchers are now investigating effective delivery methods on open rangelands, where cattle graze over large areas. Initial trials are assessing the palatability of a mineral supplement mixed with seaweed.
Future phases will measure consumption consistency, methane reduction, and livestock performance metrics. The study is supported by the California Department of Food and Agriculture.




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