Herd and pig-level risk factors for salmonella-seropositivity in pigs

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2009-01-01
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Dahl, Jan
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International Conference on the Epidemiology and Control of Biological, Chemical and Physical Hazards in Pigs and Pork
Iowa State University Conferences and Symposia

The SafePork conference series began in 1996 to bring together international researchers, industry, and government agencies to discuss current Salmonella research and identify research needs pertaining to both pig and pork production. In subsequent years topics of research presented at these conferences expanded to include other chemical and biological hazards to pig and pork production.

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This study reanalyses data using a new analytical approach, taking into account, that some risk-factors will increase the risk for a herd to be positive, whereas other risk factors tend to increase the risk of a high prevalence in positive herds. The zero-inflated model showed that use of pelleted feed increased the risk of being positive for the herd. In positive herds, use of pelleted feed, dry feed, increasing herd size and conventional (non-SPF) health status increased the prevalence.

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Thu Jan 01 00:00:00 UTC 2009