Publication:
Prevalence, characterization and antimicrobial susceptibility of Salmonella SPP. from organic, Kosher and conventional chicken in retail establishments

dc.contributor.advisor Orellana-Feliciano, Lynette E.
dc.contributor.author Delgado-Torres, Jessica
dc.contributor.college College of Arts and Sciences - Sciences en_US
dc.contributor.committee Chaparro, Mildred
dc.contributor.committee Montalvo, Rafael
dc.contributor.department Department of Biology en_US
dc.contributor.representative Harper, Carol
dc.date.accessioned 2018-06-03T23:09:02Z
dc.date.available 2018-06-03T23:09:02Z
dc.date.issued 2008
dc.description.abstract Few have reported the prevalence and antimicrobial susceptibility of Salmonella in organic and ethnic meats. The objective of this study was to assess the prevalence and antimicrobial susceptibility of Salmonella spp from organic (n=120), kosher (n=107), kosher/organic (n=26), and conventional/all natural (n=120) raw retail chicken samples, as well as to characterize these isolates by serotyping. Salmonella was isolated from all sample types. Isolates were confirmed by Polymerase Chain Reaction (PCR). Antimicrobial susceptibility was assessed for all confirmed isolates by the agar disk diffusion method and a total of 151 confirmed strains were serotyped. Overall, prevalence of Salmonella was higher in organic samples. However, organic and kosher isolates showed higher antimicrobial susceptibility than isolates from the other sample types. The most prevalent serovars were Kentucky, Enteriditis, Heidelberg, and Typhimurium. Findings from this study suggest an influence of poultry production system in the prevalence and antimicrobial susceptibility of Salmonella in raw chicken.
dc.description.abstract Existen pocos reportes de la prevalencia y susceptibilidad a antibióticos de Salmonella en carnes orgánicas y étnicas. El objetivo de este estudio fue evaluar la prevalencia y susceptibilidad a antibióticos de Salmonella spp aislada de pollos crudos orgánicos (n=120), kosher (n=107), convencionales/naturales (n=120) y kosher/orgánicos (n=26), además de identificar las especies de Salmonella presentes en estas muestras. Salmonella pudo ser aislada de todos los tipos de muestras. Todas las cepas aisladas fueron confirmadas por Reacción de Polymerasa en Cadena. A todas las cepas confirmadas se les determinó susceptibilidad a antibióticos utilizando el método de difusión de disco en agar y un total de 151 cepas fueron identificadas a nivel de serotipo. En general, las muestras orgánicas mostraron mayor prevalencia de Salmonella. Sin embargo, las cepas aisladas de muestras orgánicas y de muestras kosher mostraron mayor susceptibilidad a antibióticos que cepas aisladas de los otros tipos de muestras. Los serotipos de Salmonella mas prevalentes fueron Kentucky, Enteriditis, Heldelberg y Typhimurium. Los resultados de este estudio sugieren que los diferentes sistemas de producción de pollos influyen en la prevalencia y susceptibilidad a antibióticos de Salmonella spp en pollos crudos.
dc.description.graduationYear 2008 en_US
dc.description.sponsorship Food Technology and Safety Laboratory of the Agricultural Research Service of the United States Department of Agriculture en_US
dc.identifier.uri https://hdl.handle.net/20.500.11801/680
dc.language.iso en en_US
dc.rights.holder (c) 2008 Jessica Delgado-Torres en_US
dc.rights.license All rights reserved en_US
dc.subject Salmonella en_US
dc.subject Antimicrobial susceptibility of Salmonella in organic and ethnic meats en_US
dc.subject.lcsh Salmonella--Detection en_US
dc.subject.lcsh Salmonella infections in poultry en_US
dc.subject.lcsh Polymerase chain reaction--Diagnostic use en_US
dc.subject.lcsh Microbial sensitivity tests en_US
dc.title Prevalence, characterization and antimicrobial susceptibility of Salmonella SPP. from organic, Kosher and conventional chicken in retail establishments en_US
dc.type Thesis en_US
dspace.entity.type Publication
thesis.degree.discipline Biology en_US
thesis.degree.level M.S. en_US
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