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ISOLATION, IDENTIFICATION, AND ANTIMICROBIAL SUSCEPTIBILITY ANALYSIS OF ENTEROCOCCCUS SPP. AND SALMONELLA SPP. FROM CONVENTIONAL POULTRY FARMS TRANSITIONING TO ORGANIC FARMING PRACTICES

dc.contributor.advisorSapkota, Amy R.en_US
dc.contributor.authorKinney, Erinna Leaen_US
dc.date.accessioned2009-07-03T05:36:03Z
dc.date.available2009-07-03T05:36:03Z
dc.date.issued2009en_US
dc.identifier.urihttp://hdl.handle.net/1903/9315
dc.description.abstractThis baseline study evaluated prevalence and antibiotic resistance of food-borne bacteria as conventional poultry facilities transition to organic practices. Poultry litter, feed, soil, water samples and poultry questionnaire responses were collected from 10 conventional and 10 organic-transitioning poultry houses from March to June 2008. Enterococcus spp. (n=260) and Salmonella spp. (n=100) isolates were identified to species level and antimicrobial susceptibility testing was performed using the Sensititre® system. Statistical analyses were performed using STATA 10. Prevalence of Enterococcus spp. on organic-transitioning and conventional poultry farms was 100%; and prevalence of Salmonella spp. was 100% and 40%, respectively. Enterococcus isolates from conventional poultry houses displayed significantly higher percentages of resistance for 9 antibiotic agents compared to organic-transitioning isolates. Conversely, Salmonella spp. isolated from both conventional and organic-transitioning poultry houses exhibited similar antibiotic resistance patterns. Baseline findings suggest importance of poultry production practice in prevalence and antibiotic resistance patterns of food-borne bacteria.en_US
dc.format.extent3693176 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleISOLATION, IDENTIFICATION, AND ANTIMICROBIAL SUSCEPTIBILITY ANALYSIS OF ENTEROCOCCCUS SPP. AND SALMONELLA SPP. FROM CONVENTIONAL POULTRY FARMS TRANSITIONING TO ORGANIC FARMING PRACTICESen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentPublic and Community Healthen_US
dc.subject.pqcontrolledHealth Sciences, Public Healthen_US
dc.subject.pquncontrolledantibiotic resistanceen_US
dc.subject.pquncontrolledEnterococcusen_US
dc.subject.pquncontrolledenvironmental healthen_US
dc.subject.pquncontrolledorganic-transitioningen_US
dc.subject.pquncontrolledpoultry productionen_US
dc.subject.pquncontrolledSalmonellaen_US


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