FIG. 1.

Growth rate of Salmonella Typhimurium cultivated in the presence of different levels of antimicrobial compounds. Level 0 is the control culture without antimicrobials, level 1 refers to a culture containing one compound at concentration A, level 2 refers to cultures with one compound at concentration B or two compounds at concentration A, and level 3 refers to cultures with one compound at concentration C or three compounds at concentration A (see Table 1 for the numeric values of the concentrations).