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Principal component analysis (PCA) based on OTU level microbiota composition of all samples (PC1 = 26.02%, PC2 = 10.49%). Pre-swab (Pre), Feces (F), Post-swab (Post) are indicated by red triangles; dotted clouds indicate 7 (brown) and 20 days (blue) of age separating age-related microbiota composition irrespective of sample type. The colors denote individual animals.
