Surveillance of Salmonella Prevalence in Animal Feeds and Characterization of the Salmonella Isolates by Serotyping and Antimicrobial Susceptibility
2012
Abstract This article presents the surveillance data from the Feed Contaminants Program (2002–2009) and
SalmonellaAssignment (2007–2009) of the U.S. Food and Drug Administration (FDA), which monitor the trend of
Salmonellacontamination in
animal feeds. A total of 2,058 samples were collected from complete
animal feeds, feed ingredients, pet foods, pet treats, and supplements for pets in 2002–2009. These samples were tested for the presence of
Salmonella. Those that were positive for
Salmonellaunderwent serotyping and testing for antimicrobial susceptibility. Of the 2,058 samples, 257 were positive for
Salmonella(12.5%). The results indicate a significant overall
Salmonellareduction (p≤0.05) in
animal feedsfrom 18.2% (187 samples tested) in 2002 to 8.0% (584 samples tested) in 2009. Among these samples, feed ingredients and pet foods/treats had the most significant reduction (p≤0.05). Of the 45
Salmonellaserotypes identified,
SalmonellaSenftenberg and
SalmonellaMontevideo were the top two common s...
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