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. 2021 Apr 16;12:642549. doi: 10.3389/fmicb.2021.642549

Figure 4.

Figure 4

Effect of experimental treatments on the percentage of animals with different levels of ETEC F4 counts in colonic digesta and ileal scrapings on days 4 and 8 post-inoculation (PI). Different animals were sampled on day 4 PI and 8 PI. CTR+: non-inoculated animals receiving placebo; PRO−: inoculated animals receiving the probiotics; PRE: inoculated animals receiving the prebiotic; SYN: inoculated animals receiving the synbiotic; CTR−: inoculated animals receiving placebo. N = 6 for all groups except for non-challenged animals (N = 8). Values of p were obtained using Fisher’s exact test in R software. a and b indicate statistically significant differences between groups. FM, fresh matter; PI, post-inoculation.