Figure 6

Comparison of the amount of Salmonella before and after 2 h incubation. The change in bioluminescence on chicken skin following 2 h incubation (relative to pre-wash bioluminescence) for washed and non-washed treatments is shown. Letters at the top of the graph indicate statistical groupings for the mean differences between washed and non-washed treatments within each strain as determined by Tukey's test. Values with the same letter are not significantly different (P > 0.05).