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Dairy Farms Reduce Emissions With Seaweed Feed Supplement

Dairy Farms Reduce Emissions With Seaweed Feed Supplement

Blue Ocean Barns will supply some dairy farms in California with a feed supplement made from dehydrated red seaweed. The state’s Department of Food and Agriculture approved the product for commercial use last month. Blue Ocean claims the supplement reduces methane emissions from cow burps by 45–80%. The company has been growing seaweed at commercial scale since 2020. Last fall DSM introduced the additive 3-nitrooxypropanol, which it says reduces methane emissions by 30%.

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2026 T.K. Cheung Lecture in Animal Science - Dan Weary

Video: 2026 T.K. Cheung Lecture in Animal Science - Dan Weary

T.K. Cheung Lecture in Animal Science: "Using science to assess and improve the welfare of dairy cattle"

Dan Weary is a Professor at the University of British Columbia. Dan did his BSc and MSc at McGill and Doctorate at Oxford before co-founding UBC’s Animal Welfare Program where he now co-directs this active research group. His research focuses on understanding the perspectives of animals and applying these insights to develop methods of assessing animal welfare and improving the lives of animals. His work has helped drive changes in practices (including the adoption of higher milk rations for calves and pain management for disbudding) and housing methods (including the adoption of social housing for pre-weaned calves). He also studies cow comfort and lameness, social interactions among cows, and interactions between cows, human handlers and technologies like automated millking systems that are increasingly used on farms. His presentation will outline key questions in cattle welfare, highlight recent UBC research addressing them, and showcase innovative methods for improving the lives of cattle and their caretakers.