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Evaluation of Three Water-Suspensible Formulations of Fenbendazole against Ascaridia galli Infection in Broiler Chickens

Jean E. Sander and Roger D. Schwartz
Avian Diseases
Vol. 38, No. 2 (Apr. - Jun., 1994), pp. 350-353
DOI: 10.2307/1591961
Stable URL: http://www.jstor.org/stable/1591961
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Evaluation of Three Water-Suspensible Formulations of Fenbendazole against Ascaridia galli Infection in Broiler Chickens
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Abstract

Three formulations of water-suspensible fenbendazole, at target doses of 30.3 or 60.6 ppm in the drinking water, were administered to broilers infected with Ascaridia galli. The medication was administered in the water through automatic medicators for 6 hours on 3 consecutive days. Three days after treatment, chickens were killed and their worms were counted. Efficacy of fenbendazole was 99.2-100% and 69.0-89.6% at administration doses of 60.6 ppm and 30.3 ppm, respectively. Worm burden and percentage of broilers infected were lower in treated broilers than in controls (P ≤ 0.05). Formulation A was dispensed most consistently and in the highest concentration through automatic medicators into the drinking water. /// Tres formulaciones de Fenbendazole suspensión en agua fueron administradas a pollos de engorde infectados con Ascaridia galli. Dosis de 30.3 ó 60.6 ppm fueron administradas en el agua de bebida usando medicadores automáticos durante 6 horas por 3 días consecutivos. Tres días después del tratamiento, los pollos fueron sacrificados para el recuento de áscaris. La eficacia del Fenbendazole fue de 99.2-100% y 69.0-89.6% a las dosis de 60.6 ppm y 30.3 ppm, respectivamente. La cantidad de áscaris y el porcentaje de pollos afectados fueron menores en los pollos tratados que en los controles (P ≤ 0.05). La formulación A fue administrada con mayor consistencia y en la mayor concentración en los medicadores automáticos.

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