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Principal coordinate analysis (PCoA) of the cecal microbiota based on Weighted UniFrac distance (n = 4). The scatterplot of the PCoA scores shows four different clusters. Abbreviations: ANT, basal diet supplemented with 500 mg/kg terramycin calcium; APS, basal diet supplemented with 300 mg/kg Astragalus membranaceus polysaccharides; CON, control group with basal diet; GPS, basal diet supplemented with 150 mg/kg Glycyrrhiza uralensis polysaccharides.
