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Effect of Prolonged Administration of Dietary Capsaicin on Broiler Growth and Salmonella enteritidis Susceptibility

A. P. McElroy, J. G. Manning, L. A. Jaeger, M. Taub, J. D. Williams and B. M. Hargis
Avian Diseases
Vol. 38, No. 2 (Apr. - Jun., 1994), pp. 329-333
DOI: 10.2307/1591958
Stable URL: http://www.jstor.org/stable/1591958
Page Count: 5
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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.
Effect of Prolonged Administration of Dietary Capsaicin on Broiler Growth and Salmonella enteritidis Susceptibility
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Abstract

The effect of continuous (42 days) dietary administration of 5 or 20 ppm capsaicin to broiler chickens on Salmonella enteritidis susceptibility, body weight, and feed efficiency was investigated. Chickens were weighed at 1, 21, and 42 days of age. No significant differences in body weight or feed efficiency were observed. Chickens were challenged with 1× 108 colony-forming units of S. enteritidis at 21, 28, or 42 days of age. The S. enteritidis-positive culture rate for cecal tonsils was significantly lower (P < 0.05) in the treatment groups receiving 5 ppm or 20 ppm dietary capsaicin than in the untreated control group at all challenge times. Dietary capsaicin (5 and 20 ppm) resulted in protection against S. enteritidis organ invasion at 28 days in one experiment and at both 21 and 42 days in the other. These results indicate that continual dietary capsaicin administration increases resistance to S. enteritidis colonization and organ invasion throughout the normal growth period without detrimental effects on growth in broiler chickens. /// Se investigó el efecto de la administración continua (42 días) en la dieta de 5 ó 20 ppm de capsaicina, sobre la susceptibilidad a Salmonella enteritidis, el peso corporal y la eficiencia alimenticia de pollos de engorde. Los pollos fueron pesados a los días 1, 21 y 42. No se observaron diferencias significantes en el peso corporal o la eficiencia alimenticia. Los pollos fueron desafiados con 108 unidades formadoras de colonia de S. enteritidis a los 21, 28 ó 42 días de edad. El porcentaje de aislamiento de S. enteritidis a partir de las tonsilas cecales fue significantemente menor (P < 0.05) en los grupos que recibieron 5 ó 20 ppm de capsaicina en la dieta, comparado con los controles no tratados. La capsaicina dietética a dosis de 5 y 20 ppm dio protección contra la invasión de S. enteritidis en los órganos a los 28 días en un experimento, y a los 21 y 42 días en otro. Estos resultados indican que la administración continua de capsaicina en la dieta aumenta la resistencia y la invasión de los órganos por S. enteritidis durante el período de crecimiento normal de los pollos de engorde, sin causar efectos dañinos sobre el crecimiento.

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