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Relative abundance (%) of Top 10: phyla (A); families (B); and genera (C), in the ileum of different experimental groups. The rest of the taxonomic groups are pooled together (those representing less than a mean of 0.01, 1.3, and 1% of phyla, families, and genera, respectively). Abbreviations: NC, negative control; CuSO4 = 150 mg/kg of Cu from CuSO4; Cu2O, 150 mg/kg of Cu from Cu2O.
