J. Anim Sci.
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J. Anim Sci. 1972. 34:132-136.
© 1972 American Society of Animal Science
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Effect of Helminthosporium Maydis Infection on Feeding Value of Corn1

R. W. Seerley2, D. M. Baird3, R. S. Lowrey2 and T. L. Huber4

University of Georgia, Athens, 30601 and Georgia Station, Experiment, 30212

Abstract

Four experiments involving swine, rats and rabbits were used to evaluate the feeding value and possible toxic effects of corn damaged by Helminthosporium maydis. In a statistical analysis of two trials, TDN and apparent digestibility coefficients of ether extract, nitrogen free extract (P<.01), dry matter and energy (P<.0S) were significantly lower with diets containing the blighted corn.

There was no significant (P>.05) difference in rate of gain or feed utilization of pigs and rats when given diets with normal versus blight damaged corn. However, feed efficiency was approximately 7% lower in the pig trial which may be an indication of a slight decrease of energy utilization with blight damaged corn.

Pregnant rabbits were fed diets with normal or blighted corn. All does had normal gestation periods and produced normal, healthy litters. Corn damaged by Helminthosporium maydis was palatable and did not appear to have any toxic or adverse effects on the test animals. Chemical analysis of the corn revealed that crude protein was increased and NFE portion was slightly decreased in the fungus infected grain, but there was no significant change in percent of crude fiber, ether extract or ash content of the grain.

Footnotes

1 Georgia Agricultural Experiment Station Journal Series No. 1112.

2 Department of Animal Science, College Experiment Station, Athens.

3 Department of Animal Science, Georgia Experiment Station, Experiment.

4 Department of Physiology, College of Veterinary Medicine, Athens.






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Copyright © 1972 by the American Society of Animal Science.