Yeast-derived protein as a substitute for soybean meal

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Everyone knows about the high cost of soybean meal. Prices have exceeded $500 per ton in many parts of the U.S. And, this has prompted people to look for alternatives. One alternative may be yeast-derived microbial protein.

In this month’s edition of the Journal of Dairy Science, researchers from South Dakota State University and Alltech Inc. report that substituting a portion of soybean meal with yeast-derived microbial protein increased the percentage of total solids in milk and tended to improve energy-corrected and fat-corrected milk production in high-producing dairy cows consuming high-forage diets. The authors did acknowledge that further investigation is needed, and theirs was a nutritional comparison rather than an economic comparison.

Read the abstract
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