J. Anim Sci.
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J. Anim Sci. 1976. 42:1196-1201.
© 1976 American Society of Animal Science
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Improved Acceptance by Rats of Gibberella Zeae-Damaged Corn after Washing1,2,

Luis A. DeUriarte3, Dale M. Forsyth4 and John Tuite5

Purdue University, West Lafayette, Indiana 47907

Abstract

Response of rats to diets containing Gib-berella zeae-damaged corn and procedures to improve its suitability as animal feed were investigated in six trials.

Rats discriminated against G. zeae-damaged corn by decreased consumption whenever it was offered together with a control diet alternative. Five different G. zeae-darmaged corns, fed in diets at similar damage levels, caused similar feed refusal, indicating that rats detect and discriminate against G. zeae-damaged corn generally. Younger (smaller) rats were slightly more sensitive to G. zeae-damaged corn than older (heavier) rats; previous feeding of G. zeae-damaged corn had little effect on subsequent feeding response.

Soaking G. zeae-damaged corn in tap water for 48 hr with daytime rinsings at 2-hr intervals significantly improved feed consumption over unwashed G. zeae-damaged corn in both free choice and no choice experiments. Shorter periods of washing were less effective than 48 hours.

Footnotes

1 Journal Paper No. 6007, Purdue University Agricultural Experiment Station.

2 Appreciation is expressed to Dr. J. W. Thomas, Dept. of Dairy Science, Michigan State University for supplying corn samples.

3 Present address: Jnstituto National De Investigaciones Pecuarias, Km 15 1/2 Carretera Mexico-Toluca, Mexico 10, D.F., Mexico.

4 Department of Animal Sciences.

5 Department of Botany and Plant Pathology.






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Copyright © 1976 by the American Society of Animal Science.