TABLE 4.
Impact of dietary protein and ETEC exposure on gut microbial community richness (Chao 1) and diversity (ISI) in ileal digesta at selected days postweaning
| Day and analysis | Mean Chao 1 and ISI values ± SD for the following inoculation group: |
Probability (P)a
for the following parameter: |
|||||
|---|---|---|---|---|---|---|---|
| SHAM LP | SHAM HP | ETEC LP | ETEC HP | Exposure | Dietary protein | Interaction | |
| 5 | |||||||
| Chao 1 | 67.56 ± 28.81 | 82.89 ± 45.88 | 68.30 ± 40.63 | 48.40 ± 44.33 | >0.05 | >0.05 | >0.05 |
| ISI | 2.76 ± 1.26 | 4.86 ± 4.39 | 3.03 ± 2.92 | 2.77 ± 1.61 | >0.05 | >0.05 | >0.05 |
| 9 | |||||||
| Chao 1 | 36.01 ± 20.67 | 44.26 ± 18.36 | 45.10 ± 16.42 | 80.08 ± 25.83 | 0.03* | 0.03* | 0.04* |
| ISI | 1.66 ± 0.54 | 2.45 ± 0.82 | 2.59 ± 0.72 | 5.85 ± 2.81 | 0.03* | 0.003* | >0.05 |
| 13 | |||||||
| Chao 1 | 32.24 ± 11.69 | 46.52 ± 18.97 | 40.50 ± 29.57 | 53.64 ± 14.24 | >0.05 | 0.02* | >0.05 |
| ISI | 2.79 ± 1.01 | 3.72 ± 1.92 | 3.18 ± 1.90 | 3.96 ± 2.31 | >0.05 | >0.05 | >0.05 |
a
*, statistically significant (P < 0.05).