Table 7.
Effects of dietary algal protein supplementation and ETEC infection on α-diversity of microbiota profiles in ascending colon contents at 10 DPI in weaning pigs1
| Uninfected | ETEC-infected | P-value | |||
|---|---|---|---|---|---|
| Item | NC | PC | OA | NC vs. PC | PC vs. OA |
| Observed OTU | 361.7 ± 34.1 | 295.7 ± 19.0 | 244.2 ± 31.9 | 0.090 | 0.093 |
| Shannon | 6.17 ± 0.19 | 5.98 ± 0.17 | 5.35 ± 0.26 | 0.443 | 0.033 |
| Evenness | 0.73 ± 0.01 | 0.73 ± 0.02 | 0.68 ± 0.02 | 0.939 | 0.062 |
| Faith’s PD | 28.49 ± 1.63 | 28.12 ± 2.39 | 22.50 ± 2.05 | 0.890 | 0.071 |
1Values are least-square means ± SEM of 6 or 7 pigs per treatment. All pigs were started on their assigned dietary treatment starting at –10 DPI. Experimental treatments: NC, sham-inoculated pigs receiving 1.0% wild-type algal protein; PC, ETEC-inoculated pigs receiving 1.0% wild-type algal protein; OA, ETEC-inoculated pigs receiving 1.0% OPN-enriched algal protein. Abbreviations: ETEC, enterotoxigenic E. coli; OTU, operational taxonomic unit; PD, phylogenetic diversity.