Reference | Mathew1999 (10052)

Ten swine farms in various regions of Tennessee were se-lected for this study. Farms were classified as low antibiotic use(LU) (n53) if subtherapeutic feed-based antibiotics were notused or if only subtherapeutic concentrations of tetracyclineswere used for brief periods. Farms classified as high antibioticuse (HU) (n57) routinely used subtherapeutic feed-basedantibiotics and/or injectable antibiotics.

Five sows were randomly selected from each farm, and fecalmaterial was collected via rectal swab at 7 days postpartum.Swabs were also obtained from five pigs from each test sow. additional samplescould be collected at 35 and 63 days of age.

AST Method: None

Reference explicitly reports AST breakpoints: True

Reference reports using a MIC table: False