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Thiofuradene as an Anthelmentic and Growth Stimulant for Swine¹

University of Tennessee,² Knoxville

Abstract

Two experiments involving 104 Duroc and Hampshire pigs were conducted to study the efficacy of thiofuradene as an anthelmentic and as a growth stimulant. No ascarids were recovered at slaughter from the groups receiving hygromycin. In the groups receiving thiofuradene a higher percentage of immature ascarids was found at slaughter than in the non-medicated groups. Neither hygromycin nor thiofuradene was effective in reducing lung and liver damage attributed to ascarids migration. In Experiment 1 there was no significant difference in average daily gain or feed efficiency for the 69-day feeding period. However, there was a difference in average daily gain at 55 days in favor of the groups receiving thiofuradene. In Experiment 2 there was a highly significant difference in average daily gain between the non-medicated and thiofuradene treated groups at 100 lb. of body weight but this difference was not evident at 200 lb. body weight. There were no significant differences in feed efficiency at 100 lb. body weight or at 200 lb. body weight.

¹ This work was supported in part by a grant from Norwich Pharmacal Company, Norwich, New York.

² This article published with the permission of the Director of the Tennessee Agricultural Experiment Station, Knoxville.