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A Comparative Study of Corn Silage in Concrete and Stave Silos¹

Research Laboratories, Dairy Division, Bureau of Animal Industry, United States Department of Agriculture, Washington

ABSTRACT

Two 150-ton silos, one wood-stave and one concrete, were used in the investigation. They stood side by side and were exposed to the same temperature and weather conditions, with the exception that the stave silo, which was located to the south of the concrete silo, received some protection from northerly winds and more heat from the sun.

When the silos were about half filled, sacks of carefully mixed cut corn were buried near the wall, 18 inches from the wall, and in the center of each silo. Temperatures were taken of the outside air and of the silage at the points where the sacks were buried in each silo. The silage in the sacks was subjected to a rather complete chemical analysis, including the volatile acids. Neither the temperatures nor the chemical analysis revealed any marked difference in the quality of the silage that could be ascribed to the material used in the construction of the silo.

¹ Published by permission of the Secretary of Agriculture.