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. 2020 Jun 3;11:860. doi: 10.3389/fmicb.2020.00860

FIGURE 7.

FIGURE 7

Antibacterial activity of heavy metals: Cu (CuSO4), Zn (ZnO), Cr (K2Cr2O7), Co (CoCl2) and Ni (NiCl2) against bovine CM pathogens. (A) Zone of inhibition (ZOI, mm) for six CM causing bacteria, each bar representing the mean values (values given horizontal axis of the bars, mm) and standard deviation error bar (SD error bar) for each bacterium. (B) Minimal inhibitory concentration (MIC) (expressed as μg/mL) of the tested metals against representative genera/species as determined by agar well diffusion method.