Collaborative partners including four Universities (Ohio State, Minnesota, North Carolina State and Iowa State), industry and federal agency (USDA) conducted a one year on-farm monitoring project in swine production systems focusing on four major swine producing states: Iowa, North Carolina, Minnesota and Ohio. The one-year monitoring project included four pathogens of pork safety significance including Salmonella, Campylobacter, Escherichia coli and Enterococcus spp. The main emphasis of the project was to understand and monitor antimicrobial resistance among these organisms and develop a representative sampling scheme that may help build a national on-farm monitoring program. The study documented the common occurrence of the organisms at various proportions in all four states. While this is expected and not surprising, there was a great deal of variation on serotypes and antimicrobial resistance patterns.
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