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Seaweed feed supplement for methane reduction in livestock products

June 2020


Seaweed feed supplement for methane reduction in livestock products

  • World Alliance Member
  • Featured Solution
  • Labelled Solution
Label Date June 1, 2020
From United States
Maturity stage TRL 6 - Prototype testing 1:1 in lab

Methane is a greenhouse gas that is a product of digestion and fermentation in the stomachs of ruminant animals including dairy cows, cattle, sheep, goats, and bison. Studies estimate that burping animals contribute to anywhere from 5 to 20% of total global emissions. For companies and producers in the livestock industry, methane emissions often contribute to over 40% of a company’s emission inventory. Acknowledging this challenge, Symbrosia has created SVD - a seaweed feed additive able to reduce ruminant methane emissions by over 90%, when sprinkled on cattle feed at a ~0.4% inclusion rate. In order to grow enough product to provide for the livestock industry, Symbrosia is positioned at this nexus, bringing the technical skills needed to meet milestones and proving out the commercial viability as well as the positive environmental impact of growing this product in culture.

The Environmental Benefits

  • 85% reduction of CO2 emission per head
  • Growing seaweed outdoors draws down carbon from the atmosphere - Asparagopsis taxiformis contains 53% carbon, it represents up to ~275 ton CO2 uptake/year
  • By 2024, SVD could reduce about 63,000 ton CO2-eq on an annual basis in the form of methane reduction

The Financial Benefits

  • Introduces the notion of "methane neutral milk" which could soon become an interesting selling proposition for brands and retailers
  • No upfront investment required

Target client profile

Activity Region

  • Headquarters
  • Activity

Company Profile


Asparagopsis taxiformis seaweed supplement for livestock methane reductions of over 85% per animal.

Type Startup or self-employed
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Networking Partner

Greentown Labs

The largest cleantech incubator in the United States!

Solutions Associated 12
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Cleantech Group

The Cleantech Group is a company that supports the development and marketability of clean technologies. The Cleantech Group provides members of its Cleantech network access to capital, investors, research and promotional opportunities. The group also provides advisory services for large corporations and governments. Founded in 2002, the Cleantech Group owns the term "cleantech" as a registered trademark.

Solutions Associated 49
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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Symbrosia has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.