J. Anim Sci.
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J. Anim Sci. 1975. 40:1-5.
© 1975 American Society of Animal Science
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Comparison of Supplements Containing Soybean Meal and Urea Fed with Whole or Ground Shelled Corn to Beef Cattle1

T. W. White2, W. L. Reynolds3 and F. G. Hembry4

Louisiana Agricultural Experiment Station, Crowley 70526 and Baton Rouge 70803 and U. S. Department of Agriculture, Jeanerette 70544

Abstract

Three feedlot experiments were conducted to study the influence of feeding various protein supplements with whole and ground shelled corn. There was no significant difference in the total dry matter intake due to the physical form of the corn. Average daily gain and carcass weight were generally higher with whole than ground corn. Feeding a 6% urea-94% molasses mixture free-choice resulted in greater intake, daily gain and carcass weight than feeding 6% urea in a dry supplement as 25% of the total ration. There were no significant differences in the average daily gain and carcass weight of cattle fed soybean meal or urea-molasses supplements. A complex supplement, composed of urea and plant protein, fed at the rate of .5 lb (227 g) per day gave a variable response which was attributed to a reduced intake as a result of an ammonia odor from the supplement.

Footnotes

1 Appreciation is expressed to American Cyanamid Company, Princeton, New Jersey for urea and to Chas. Pfizer and Company, Terre Haute, Indiana for vitamin A and oxytetracycline used in these investigations.

2 Rice Experiment Station, Crowley, Louisiana.

3 Iberia Livestock Experiment Station, A.R.S., Jeanerette, Louisiana.

4 Department of Animal Science, Louisiana State University, Baton Rouge.






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