Prophylactic Treatment of Experimental Raillietina cesticillus Infections in Chickens with Yomesan

Abstract
Yomesan (2,[image]5-dichloro-4[image]-nitrosalicylanilide) was used in experimental infections of chicks with Railietina cesticillus to determine the prophylactic activity. Cestode numbers were markedly controlled in birds receiving the drug in the diet at or above 20 mg/kg/day. Tapeworms remaining in treated birds were stunted and did not pass mature proglottids in the feces. This suppressive action existed throughout Yomesan medication. Five and 10 days after drug withdrawal, 58 and 75% of retained cestodes developed to maturity. Hygromycin-B appeared to be compatible with Yomesan.

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