TABLE 2.
Phylum-level composition (>1%) on the fecal bacterial community of mice fed different starch and protein ratio diets.
| Diets |
Bacteroidetes | Firmicutes | unidentified_Bacteria | Verrucomicrobia | Proteobacteria | |
| CP | TS | |||||
| 16 | 50 | 50.9 | 37.5 | 5.90 | 3.30 | 2.12 |
| 16 | 52 | 58.0 | 23.5 | 1.10 | 14.5 | 2.69 |
| 16 | 54 | 58.8 | 30.5 | 6.05 | 1.68 | 2.74 |
| 16 | 56 | 75.3 | 13.9 | 5.37 | 1.14 | 3.88 |
| 18 | 50 | 70.6 | 14.1 | 3.66 | 4.79 | 3.98 |
| 18 | 52 | 77.5 | 10.2 | 3.92 | 1.64 | 6.28 |
| 18 | 54 | 81.2 | 11.3 | 1.76 | 1.14 | 3.76 |
| 18 | 56 | 70.5 | 17.8 | 3.33 | 1.82 | 3.71 |
| 20 | 50 | 68.2 | 22.9 | 2.44 | 2.40 | 3.24 |
| 20 | 52 | 80.4 | 7.60 | 1.11 | 5.29 | 5.41 |
| 20 | 54 | 68.2 | 13.9 | 0.81 | 13.5 | 2.05 |
| 20 | 56 | 69.4 | 14.5 | 2.60 | 11.0 | 1.80 |
| 22 | 50 | 72.0 | 14.5 | 6.41 | 3.86 | 2.19 |
| 22 | 52 | 69.9 | 14.2 | 4.29 | 5.64 | 5.49 |
| 22 | 54 | 61.5 | 17.4 | 7.14 | 8.41 | 4.95 |
| 22 | 56 | 55.0 | 22.1 | 11.4 | 8.83 | 2.20 |
| Univariate analysis | ||||||
| 16 | – | 61.1b | 27.6a | 5.63a | 2.49b | 2.87c |
| 18 | – | 74.3a | 14.0b | 3.00b | 2.65b | 4.00a |
| 20 | – | 71.3a | 15.2b | 1.89b | 7.73a | 3.16bc |
| 22 | – | 64.7b | 17.0b | 7.27a | 6.65a | 3.74ab |
| – | 50 | 65.4b | 22.5a | 4.60ab | 3.59 | 2.90b |
| – | 52 | 74.3a | 11.6c | 2.82b | 5.54 | 5.40a |
| – | 54 | 66.9b | 18.8ab | 4.36ab | 5.72 | 3.52b |
| – | 56 | 67.5b | 17.0b | 5.64a | 6.06 | 2.88b |
| SEM | 0.010 | 0.009 | 0.005 | 0.005 | 0.002 | |
| CP P-value | <0.001 | <0.001 | <0.001 | <0.001 | 0.007 | |
| TS P-value | 0.360 | 0.006 | 0.200 | 0.045 | 0.001 | |
| CP × TS P-value | <0.001 | <0.001 | 0.457 | <0.001 | <0.001 | |
CP, crude protein; TS, starch; Each group contains 10 samples; SEM, standard error of the mean. In the same column, values with no letter or the same letter superscripts mean no significant difference (p > 0.05), while with different small letter superscripts mean significant difference (p < 0.05).