What Is Asparagopsis taxiformis?
Asparagopsis taxiformis is a red alga (class Florideophyceae) found in tropical and subtropical marine environments. It is one of two species in the genus Asparagopsis, the other being Asparagopsis armata, which is more common in temperate waters.
Asparagopsis taxiformis has been used in traditional food cultures in parts of Asia and the Pacific. Its recent commercial and scientific interest is driven primarily by its chemical composition — specifically, its naturally high concentration of halogenated compounds, of which bromoform (CHBr₃) is the most studied in the context of livestock feed.
Why Does Asparagopsis taxiformis Matter for Livestock Feed?
Enteric fermentation — the digestive process in ruminant animals such as cattle, sheep, and goats — is a significant source of methane, a potent greenhouse gas. Methanogenesis in the rumen is carried out by methanogenic archaea, microorganisms that produce methane as a byproduct of feed digestion.
Bromoform, the primary active compound in Asparagopsis taxiformis, inhibits the enzyme methyl-coenzyme M reductase (MCR), which is essential to methanogenesis. By inhibiting MCR, bromoform reduces the activity of methanogenic archaea in the rumen, thereby reducing enteric methane production.
This mechanism of action is documented in peer-reviewed literature and is the scientific basis for ongoing research into Asparagopsis taxiformis as a livestock feed additive.
What Does Published Research Show?
Important notice
View the Research & Science page for the full reference list and summaries.
What Is the Regulatory Status?
Regulatory approval for Asparagopsis taxiformis as a livestock feed additive varies by market and is not universal. Buyers and feed formulators are responsible for confirming the regulatory status in their jurisdiction before commercial use. ShiLai™ does not provide regulatory advice.
How Is Asparagopsis taxiformis Used in Feed?
Asparagopsis taxiformis is typically incorporated into livestock feed as a dried powder or pellet, blended into compound feed or premix at specified inclusion rates. The appropriate inclusion rate depends on the livestock species, production system, and formulation objectives, and should be determined by the feed formulator in consultation with current published literature and applicable regulatory guidance.
ShiLai™ supplies Asparagopsis taxiformis in dried powder and pellet forms for B2B buyers including feed mills, research institutions, and commercial livestock operations. For product specifications and procurement inquiries, visit our Bulk Supplier page or contact us directly.
References
The following peer-reviewed publications are the source of the scientific findings cited in this article. These studies were conducted independently of ShiLai™. Inclusion of these citations does not imply endorsement of ShiLai™ by any of the named authors, institutions, or journals.
1. Kinley, R.D., Martinez-Fernandez, G., Matthews, M.K., de Nys, R., Magnusson, M., & Tomkins, N.W. (2020). Mitigating the carbon footprint and improving productivity of ruminant livestock agriculture using a red seaweed. Journal of Cleaner Production.
https://doi.org/10.1016/j.jclepro.2020.1208362. Roque, B.M., Venegas, M., Kinley, R.D., de Nys, R., Duarte, T.L., Yang, X., & Kebreab, E. (2021). Red seaweed (Asparagopsis taxiformis) supplementation reduces enteric methane by over 80 percent in beef steers. PLOS ONE.
https://doi.org/10.1371/journal.pone.02478203. Glasson, C.R.K., Kinley, R.D., de Nys, R., King, N., Adams, S.L., Packer, M.A., & Magnusson, M. (2022). Benefits and risks of including the bromoform containing seaweed Asparagopsis in feed for the reduction of methane production from ruminants. Algal Research.
https://doi.org/10.1016/j.algal.2022.102673