Table 8.
Phylum-level taxonomic composition of the bacterial communities in the ruminal contents of heifers fed a barley straw diet before and after rumen content transfers from the bison.
| Phylum (%) | Bison inoculum | Rumen transfers | SEM | P-value2 | ||
|---|---|---|---|---|---|---|
| Before | After (d 1)1 | After (d 27)1 | ||||
| Firmicutes | 44.48 ± 0.45 | 40.53 | 41.61 | 39.05 | 0.012 | 0.22 |
| Fibrobacteres | 23.09 ± 2.10 | 25.04a | 22.32b | 25.34a | 0.022 | 0.14 |
| Bacteroidetes | 20.04 ± 1.78 | 20.29 | 21.52 | 20.71 | 0.004 | 0.21 |
| Spirochaetae | 5.82 ± 0.40 | 6.13b | 7.44a | 6.44b | 0.006 | 0.02 |
| Actinobacteria | 1.95 ± 0.31 | 1.78a | 1.36b | 1.44b | 0.001 | <0.001 |
| Proteobacteria | 1.44 ± 0.16 | 1.64a | 1.43b | 1.43b | 0.001 | 0.01 |
| Lentisphaerae | 1.29 ± 0.15 | 1.35 | 1.39 | 1.22 | 0.002 | 0.44 |
| Others (<0.5%) | 1.88 ± 0.08 | 1.91b | 1.79b | 2.19a | 0.11 | <0.001 |
1Days 1 and 27 after the second rumen transfer.
2The P-values were adjusted for FDR using Benjamini-Hochberg method85. A threshold of P < 0.15 was applied to determine the significance. Within a row, means with different superscript are significantly different.