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Presentation
Describing the Salmonella classification levels for low-volume production systems utilizing abattoir-based samples and classification stability over time
International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork
  • James D. McKean, Iowa State University
  • Annette M. O'Connor, Iowa State University
Publication Date
2009
Abstract

The objective of this study was to compare estimates of the prevalence of meat-juice-based antibodies to Salmonella in swine originating from low-volume USA production systems (marketing s 8000 pigs per year) during 2002 and 2004. Meat samples were collected in concert with an established PRV monitoring system. Classification was established using the Danish Salmonella system. Forty-seven% of low-volume production systems did not change class from 2002 to 2004. However, 53% of systems did change class with most moving to higher observed seroprevalence in 2004. Salmonella seroprevalence was not stable within matched swine-production cohorts over time. Within-herd Salmonella seroprevalence was not stable over the reporting times. Classification of production-system status based on Salmonella antibody prevalence proved to be an unstable outcome.

Book Title
8th International Symposium Epidemiology and Control of Foodborne Pathogens in Pork
Pages
145-148
Language
en
File Format
application/pdf
Citation Information
James D. McKean and Annette M. O'Connor. "Describing the Salmonella classification levels for low-volume production systems utilizing abattoir-based samples and classification stability over time" (2009)
Available at: http://works.bepress.com/annette_oconnor/4/