J. Anim Sci.
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J. Anim Sci. 1963. 22:919-924.
© 1963 American Society of Animal Science
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Calcium and Fat Interrelationships as Influences of Performance of Fattening Lambs1

Kenneth L. Davison2 and Walter Woods3

Iowa Agricultural and Home Economics Experiment Station, Ames

Abstract

A growing-fattening experiment was conducted to compare performance of lambs when calcium and corn oil were added to rations containing corncobs or alfalfa hay. A series of experiments followed to study calcium, stabilized white grease and trace mineral interrelationships on performance of fattening lambs. The addition of 5% corn oil to a ration containing 40% alfalfa hay decreased feed required per pound of gain and increased carcass grade. Corn oil additions did not improve performance of lambs fed rations containing corncobs. Calcium carbonate additions did not significantly increase performance of lambs fed a corncob ration with or without added grease. The addition of 5% stabilized white grease to rations containing corncobs did not significantly influence rate of gain, feed consumption, efficiency of feed conversion, dressing percent or carcass grade. Blood lipid values increased with fattening of the lambs but were not appreciably changed by the feeding of grease. The feeding of large quantities of corn oil by stomach tube did not change total blood lipids in a 24 hr. period.

Footnotes

1 Journal Paper No. J-4525 of the Iowa Agricultural and Home Economics Experiment Station, Ames, Iowa. Project No. 1208.

2 Present address: Department of Animal Husbandry, Cornell University, Ithaca, New York.

3 Present address: Department of Animal Science, University of Nebraska, Lincoln, Nebraska.

4 Supplied by the courtesy of B. M. Shinn, Armour and Company, Chicago, Illinois.






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Copyright © 1963 by the American Society of Animal Science.