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. 2015 Apr 10;6:297. doi: 10.3389/fmicb.2015.00297

Figure 1.

Figure 1

Average number of major bacterial OTUs (relative abundance of ≥0.5 or ≥1%) identified in Firmicutes, Bacteroidetes, Clostridia, and Prevotella. CTRL, control; ORO, origanum oil; GAO, garlic oil; PEO, peppermint oil; Different letters (a–c) above the bars indicate significant (P ≤ 0.05) differences among the treatments (three replicates per treatment).