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The Sero-prevalence of Salmonella spp. in Finishing Swine in Iowa
International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork
  • Annette M. O'Connor, Iowa State University
  • James D. McKean, Iowa State University
  • J. Beary, Iowa State University
  • S. Brockus, Iowa State University
  • E. Zhou, Iowa State University
Publication Date
This study represents the first attempt to classify Iowa production sites for Salmonella spp. sero-prevalence. The data suggest that the Iowa herds are similar in their distribution with respect to sero-prevalence of salmonella as Danish herds. Ignoring herd size, 91.2 of surveyed herds were negative or level 1, 8.2 % were level 2 herds, and 1.6 % level 3. These results are similar to previous Danish studies (Alban et al., 2002, Mousing et al., 1997). The current data suggests that larger herds tend to have a higher sero-prevalence than smaller units; however, formal analysis has yet to be conducted to determine the direct association between herd size and salmonella sero-prevalence. Studies by Carstensen et al. (1998) suggested that herd size was statistically associated, albeit weakly, with Salmonella sero-prevalence, but the authors concluded the relationship was probably not biologically significant.
Book Title
Safe Pork: 5th International Symposium on the Epidemiology and Control of Foodborn Pathogens in Pork
File Format
Citation Information
Annette M. O'Connor, James D. McKean, J. Beary, S. Brockus, et al.. "The Sero-prevalence of Salmonella spp. in Finishing Swine in Iowa" (2003)
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