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Effect of Adding a Cholagogue to Rations for Growing Swine at Three Levels of Dietary Fat¹

University of Georgia²

Abstract

Fifty-four weanling pigs were used to study the effects of adding a choleretic agent to rations containing three levels of fat.

Increasing the fat level of the ration resulted in a significant increase in rate of gain. Addition of the cholagogue to the rations resulted in a negative regression effect on growth response as the fat level of the ration was increased.

Efficiency of feed utilization was increased in the order of increasing fat level in the ration, while average daily feed intakes decreased.

A linear increase in fecal ether extractable material was found as the level of dietary fat was increased. A significant decrease in the percentage of fecal ether extract resulted from supplementation with the cholagogue at the end of eight weeks on trial.

¹ Contribution from the Department of Animal Husbandry, University of Georgia, Athens, Georgia. Journal Paper No. 46 of the College Experiment Station.

² Grateful acknowledgement is made to American Cyanamid Company, Pearl River, N. Y.; S. E. Massengill Company, Bristol, Tenn.; and Dawes Laboratories, Inc., Chicago, Ill. for supplying products used in this experiment. Acknowledgement is also due J. L. Carmon for assistance in the statistical evaluation of the results and to J. R. Danion for aid in caring for the animals.