Am. Soc. Anim. Prod.
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Am. Soc. Anim. Prod. 1935:189-190
© 1935 American Society of Animal Science
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Calcium Carbonate vs. Calcium Sulphate in Swine Rations1

C. W. McCampbell and C. E. Aubel

Kansas Agricultural Experiment Station

Abstract

There are several gypsum mines in Kansas. The owners of these mines became interested in the possibility of using finely powdered gypsum as a source of calcium in live stock rations and asked the Kansas Agricultural Experiment station to compare their product with finely powdered limestone for this purpose. Such a comparison was conducted during the winter of 1933–34.

Four groups of two pigs each were fed 112 days in making this comparison. All pigs were fed individually and each pig received the same basal ration. This basal ration consisted of six-tenths of a pound of linseed oil meal daily, one pound of wheat shorts daily and shelled corn equal to the amount the least consuming pig would eat. The corn consumption averaged 2.52 pounds per head daily. Each pig also received one tablespoonful of cod liver oil daily. In addition, each ration was supplemented with calcium as follows:

Footnotes

1 Contribution No. 111 from the Department of Animal Husbandry.






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Copyright © 1935 by the American Society of Animal Science.