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Journal Article

Effect of Feeding Selected Short-Chain Fatty Acids on the in vivo Attachment of Salmonella typhimurium in Chick Ceca

Frank McHan and Emmett B. Shotts
Avian Diseases
Vol. 36, No. 1 (Jan. - Mar., 1992), pp. 139-142
DOI: 10.2307/1591728
Stable URL: http://www.jstor.org/stable/1591728
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.
Effect of Feeding Selected Short-Chain Fatty Acids on the in vivo Attachment of Salmonella typhimurium in Chick Ceca
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Abstract

Two groups of 20 chicks each were fed 1% fatty acid continuously starting at 1 day of age, while a control group of 20 chicks received unsupplemented feed. At 2 days of age, chicks were inoculated orally with 1 ml of Salmonella typhimurium (1 × 106 colony-forming units/ml). Ceca were obtained from six chicks of each group at 7, 14, and 21 days of age. At 14 days of age, formic and propionic acids had statistically reduced Salmonella recovery by 2.56 logs and 3.09 logs, respectively, compared with controls. At 21 days of age, both test groups showed significant reductions of approximately 3.6 logs compared with controls. There were no statistical differences in body weights among the groups at 21 days of age. /// Se administraron ácidos grasos en proporción de 1% en la dieta a dos grupos de veinte pollitos de un día de edad, mientras se mantuvo a un grupo control de veinte pollitos sin recibir alimento suplementado. A los dos días de edad, los pollitos fueron inoculados por vía oral con 1 ml de Salmonella typhimurium (1 × 106 UFC/ml). Se obtuvieron los ciegos de seis pollitos de cada grupo a los 7, 14 y 21 días de edad. A los 14 días de edad, los ácidos fórmico y propiónico habían reducido estadísticamente la tasa de reaislamiento de Salmonella en proporción de 2.56 y 3.09 logaritmos respectivamente, al comparárseles con el grupo control. A los 21 días de edad, ambos grupos sometidos a prueba mostraron reducciones significantes de aproximadamente 3.6 logaritmos en comparación con los controles. No hubo diferencias estadísticas en cuanto a los pesos corporales entre los distintos grupos a los 21 días de edad.

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