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Contamination of Salmonella Blockley in the Environment of a Poultry Farm

Suvit Limawongpranee, Hideki Hayashidani, Alexandre T. Okatani, Chuzo Hirota, Ken-ichi Kaneko and Masuo Ogawa
Avian Diseases
Vol. 43, No. 2 (Apr. - Jun., 1999), pp. 302-309
DOI: 10.2307/1592621
Stable URL: http://www.jstor.org/stable/1592621
Page Count: 8
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Contamination of Salmonella Blockley in the Environment of a Poultry Farm
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Abstract

Cecal and environmental samples were collected and examined for the presence of Salmonella on a farm where a high prevalence of Salmonella blockley in chickens was observed. Of 895 cecal and 525 environmental samples examined, 242 (27.0%) and 202 (38.5%) samples, respectively, yielded S. blockley. From the analysis of plasmid profile patterns, 11 different plasmid profile patterns were found among 444 isolates, with plasmid patterns c and d the most frequent among the isolates from ceca and the environment. Salmonella blockley was isolated from environmental samples such as floor litter, walls, drinking water, waste water, dust, and soil collected when barns were occupied and was positive in drinking water, waste water, and soil when samples were collected from empty barns with occupied neighboring barns, but it was negative in all environmental samples with the exception of soil when the environmental samples were collected from empty barns with empty neighboring barns. /// En una granja donde se había observado una prevalencia alta de Salmonella blockley en pollos, muestras del medio ambiente y del ciego se tomaron y se examinaron para la presencia de Salmonella. De 895 muestras cecales y 525 muestras de medio ambiente examinadas, 242 (27.0%) y 202 (38.5%) muestras fueron positivas a S. blockley, respectivamente. En el análisis de los patrones de los perfiles de los plásmidos, se encontraron 11 patrones de perfiles de plásmidos diferentes entre las 444 cepas, con patrones de plásmido c y d, que son los más frecuentes entre cepas aisladas del ciego y del medio ambiente. Se aisló S. blockley de muestras de medio ambiente como cama, paredes, agua de bebida, agua de deshecho, polvo y suelo, tomadas cuando los galpones estaban ocupados. La S. blockley también se aisló de agua de bebida, agua de deshecho y suelo en muestras tomadas en galpones vacíos con galpones vecinos ocupados, pero no se aisló en todas las muestras del medio ambiente con excepción de muestras de suelo cuando las muestras se tomaron en galpones vacíos con galpones vecinos vacíos.

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