Fig. 2

Differences in fecal bacterial community composition between swine groups (+/− β-glucan) prior to and following Salmonella inoculation. 16S rRNA amplicon sequencing was performed on fecal samples from pigs prior to in-feed administration of β-glucan (F0), prior to Salmonella inoculation (D0), and 2, 7, and 16 dpi with Salmonella (D2, D7, and D16, respectively). Bacterial community composition was assessed by pairwise PERMANOVA tests at the indicated timepoints. The x- and y-axis depict the time relative to β-glucan supplementation and the PERMANOVA F statistic, respectively. A greater F.model indicates a greater difference between the dietary groups. Each point represents an individual test, and FDR corrected P values are shown. Salmonella inoculation occurred at 21 days of β-glucan supplementation and is indicated with a vertical red line