Reference | Rasschaert2012 (10091)

Twelve farms were included in this study. Six farms were grow-to-finish production holdings or fattening farms, so-called open farms. In these units, piglets obtained from multiple sources are raised starting at 20 to 25kg until they reach slaughter weight. Six farms were farrow-to-finish production holdings, so-called closed farms. On the open farms, pigs were reared according to the all-in/all-out principle per barn. These 12 farms, alllocated in Flanders (northern Belgium), were selected based on their presumptive-positive Salmonella status. Each farm was visited twice, with an interim of approximately 2 months between sampling visits. For open farms, the pigs were first sampled halfway through the fattening period and again just before slaughter. On the closed farms, only the fattening pigs were sampled. All age and weight groups were sampled approximately 2 months apart.

The farms were sampled from February 2008 to February 2009. Both farm types were sampled during the same seasons. Depending on the herd size, the number of sampled animals was between 77 and 91. These animals were randomly chosen among the pens distributed across the barn(s). From each animal, a fecal sample was aseptically collected, either directly from the rectum or from freshly voided feces on the floor.

AST Method: Disk Diffusion

Reference explicitly reports AST breakpoints: False

Reference reports using a MIC table: False