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Microalgae could be a viable feedstuff for ruminants

An article on the American Society of Animal Science website highlights a piece recently published work by scientists at Montana State University and Iowa State University into the potential of microalgae a a feedstock for cattle.

The scientists had been approached by Solazyme, a company that uses algae as a raw material, to see if they could find a use for the waste products from their processes. 

“We looked at the nutrient analysis of a blend of deoiled algae and soyhulls,” said Dr. Stephanie Hansen, Assistant Professor at Iowa State University. “Everyone thought that this could be a great ruminant feedstuff.”

The team were pleased with the results of their analyses, and are now working with Solazyme to determine the final value of a algae based feed product.

Find out more at


Story source: American Society of Animal Science, 15 Jun 2015. Original article by by Jacquelyn Prestegaard

Journal References:

  1. Octavio Perez-Garcia, Froylan M.E. Escalante, Luz E. de-Bashan, Yoav Bashan. Heterotrophic cultures of microalgae: Metabolism and potential products. Water Research, 2011; 45 (1): 11 DOI:10.1016/j.watres.2010.08.037
  2. M. L. Van Emon, D. D. Loy, S. L. Hansen. Determining the preference, in vitro digestibility, in situ disappearance, and grower period performance of steers fed a novel algae meal derived from heterotrophic microalgae. Journal of Animal Science, 2015; 93 (6): 3121 DOI: 10.2527/jas.2014-8654
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