Table 3.

Distribution of MIC values to antimicrobials among Salmonella spp. isolated (n = 138) from pig slurry and biogas effluent.

^aThe shaded areas indicate the range of dilutions tested for each antimicrobial. Single vertical bars indicate the breakpoints for susceptibility, while double vertical bars indicate the breakpoints for resistance. Numbers in the un-shaded area indicate the number of isolates with MICs greater than the highest tested concentrations. Numbers listed for the lowest tested concentrations represent the number of isolates with MICs equal to or less than the lowest tested concentration.