J. Anim Sci.
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J. Anim Sci. 1970. 30:455-461.
© 1970 American Society of Animal Science
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Corn Silage Fermentation. I. Effects of Crude Protein Sources and Sodium Bisulfite on Energy Constituents1,2,

Fredric N. Owens3, J. C. Meiske and R. D. Goodrich

University of Minnesota, St. Paul4

Abstract

The influence of added sodium metabisulfite and nitrogen sources (urea, biuret or soybean meal) on corn silage or corn stalklage fermentation was studied using laboratory silos. As measured by total and sequential gas productions, and final fermentation acid concentrations, the crude protein additions, particularly urea, caused increased and extended fermentations. Nitrogen additions were associated with increased wet and dry weight losses. However, energy losses among treatments as measured by calorimetry of wet silage were not related to the wet and dry weight losses of the silages. Biuret did not influence fermentation appreciably. Sodium metabisulfite delayed fermentation, but increased gas production and wet and dry weight losses. Lactic acid concentration was lower in fermented material which had bisulfite added, but concentrations of other acids were increased. Stalklage underwent fermentation similar to that of whole plant corn silage of similar moisture content.

Footnotes

1 Paper No. 6939, Scientific Journal Series of the Minnesota Agricultural Experiment Station.

2 This paper represents a portion of the senior author's thesis submitted to the Graduate School, University of Minnesota in partial fulfillment of the requirements for the degree of Doctor of Philosophy.

3 Present address: Department of Animal Science, University of Illinois, Urbana.

4 Department of Animal Science.






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Copyright © 1970 by the American Society of Animal Science.