Table 2.
Relative abundances of bacterial phyla in feces after β-glucan intervention.
| Phylum1 | Diet2 |
SEM3 | P-value | |||
|---|---|---|---|---|---|---|
| Control | 3 g LMW | 5 g LMW | 3 g HMW | |||
| Above 1 % of community | ||||||
| Bacteroidetes | 4.99a | 7.59a | 9.95ab | 14.22b | 1.67 | < 0.0014 |
| Firmicutes | 89.69a | 87.50a | 82.36ab | 77.91b | 2.16 | < 0.0014 |
| Between 0.1 and 1% of community | ||||||
| Actinobacteria | 0.64 | 0.71 | 1.07 | 0.55 | 0.25 | 0.335 |
| Proteobacteria | 0.18 | 0.10 | 0.14 | 0.32 | 0.13 | 0.665 |
| Tenericutes | 0.086 | 0.066 | 0.093 | 0.19 | 0.06 | 0.475 |
| Verrucomicrobia | 0.14 | 0.39 | 0.19 | 0.39 | 0.17 | 0.285 |
a,bMeans within the same row with different superscripts are different (P < 0.05).
1Only phyla with abundances greater than 0.1% of the community (at least in one of the treatment group) are presented. Additional phyla including Cyanobacteria, Synergistetes, Lentisphaerae, Deferribacteres, Elusimicrobia were present in abundances below 0.1% of the community.
2Diets include: Wheat and rice control (Control), 3 g/d low molecular weight barley β-glucan (3 g LMW), 5 g/d low molecular weight barley β-glucan (5 g LMW), 3 g/d high molecular weight barley β-glucan (3 g HMW). Data are presented as mean values.
3SEM, Standard Error of Mean.
4P-values are shown for the diet effect between groups analyzed by mixed model ANCOVA with diet, period, period × diet as fixed factors.
5P-values are shown for the diet effect between groups analyzed by GLIMMIX procedure of SAS with diet, period, period × diet as fixed factors.