J. Anim Sci.
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J. Anim Sci. 1975. 41:500-507.
© 1975 American Society of Animal Science
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Comparison of Artifically Dried Corn with High-Moisture Corn Stored in Two Silo Types1

M. P. Hoffman2 and H. L. Self2

Iowa State University, Ames 50010,3

Abstract

Eight tests were conducted involving whole corn grain in three storage systems over a 4-year period. The grain was field-combined at 23 to 30% moisture and corrected to a standard 25.8% to determine the total weight going into each of three systems: (1) dried and stored in conventional bins, (2) stored as high-moisture whole grain in an oxygen-limiting silo, or (3) stored as high-moisture whole grain in a concrete-stave silo. Efficiency of each system for storing grain was determined by the ratio of corn grain entering a system to the live weight gains of yearling steers when all the grain was fed from each system. On that basis, 7.9, 7.6 and 8.0 units of fresh-harvested corn grain was required per unit of live weight gain for the dry, oxygen-limiting and concrete-stave systems, respectively. Determination of dry-matter losses during storage in the two high-moisture systems indicated a loss of 6.0% in the oxygen-limiting system and 12.5% in the concrete-stave system (P<.10). Method of storage did not affect palatability as determined by daily grain intake or carcass quality based on final U.S.D.A. carcass grade.

Footnotes

1 Journal Paper No. J-7904 of Iowa Agriculture and Home Economics Experiment Station, Ames. Project No. 1801.

2 Animal Science Department.

3 Partial financial support provided by A. O. Smith Harvestore Products, Inc., Arlington Heights, IL and Iowa Silo and Silage Equipment Association.






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Copyright © 1975 by the American Society of Animal Science.