J. Anim Sci.
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J. Anim Sci. 1961. 20:569-572.
© 1961 American Society of Animal Science
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Effect of Heating Starch on its Digestion by Rumen Microorganisms1

R. L. Salsbury, J. A. Hoefer and R. W. Luecke

Michigan State University,2 East Lansing

Abstract

Corn starch, ground corn, and a commercially heated corn were exposed to various heat treatments and the effect of the treatments on the digestion of the readily hydrolyzable dry matter (RHDM) of these materials by rumen microorganisms was examined. Results were in keeping with the concept that the application of moist heat to starch or starchy feeds brings about hydration of the starch and that hydrated starch is digested more rapidly by rumen microorganisms than untreated starch. Autoclaving ground corn or a commercially heated corn without the addition of water resulted in a decrease in the rate of digestion of the RHDM.

Footnotes

1 Published with the approval of the Director of the Michigan Agricultural Experiment Station as Journal Article No. 2775.

2 Departments of Agricultural Chemistry and Animal Husbandry.






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Copyright © 1961 by the American Society of Animal Science.