Table 3.
Relative richness of cecal dominant phyla and genera in 21-day-old broilers.1
| Items (%) | HGT, mg/kg |
SEM | P value | |||
|---|---|---|---|---|---|---|
| 0 | 150 | 300 | 450 | |||
| Phylum level | ||||||
| Firmicutes | 98.45 | 97.46 | 97.69 | 98.70 | 0.368 | 0.431 |
| Proteobacteria | 1.13 | 1.13 | 1.08 | 0.66 | 0.260 | 0.830 |
| Actinobacteria | 0.42 | 1.40 | 1.23 | 0.64 | 0.221 | 0.131 |
| Genus level | ||||||
| Unclassified Lachnospiraceae | 30.50 | 53.02 | 33.75 | 43.03 | 3.275 | 0.065 |
| Faecalibacterium | 26.47 | 1.312 | 11.21 | 2.090 | 3.800 | 0.069 |
| Ruminococcus torques group | 7.82 | 7.97 | 9.90 | 14.35 | 1.323 | 0.368 |
| Blautia | 5.99 | 12.03 | 8.66 | 6.34 | 0.925 | 0.057 |
| Subdoligranulum | 4.35 | 3.36 | 2.09 | 5.23 | 1.241 | 0.687 |
| Norank Eubacterium coprostanoligenes group | 1.45b | 2.52ab | 4.22a | 4.42a | 0.410 | 0.010 |
| Romboutsia | 1.00 | 0.27 | 4.34 | 5.08 | 1.015 | 0.056 |
| Erysipelatoclostridium | 2.13 | 1.70 | 2.86 | 3.03 | 0.284 | 0.235 |
| Sellimonas | 2.17 | 1.54 | 3.04 | 1.92 | 0.299 | 0.562 |
| Unclassified Peptostreptococcaceae | 2.42 | 0.42 | 1.28 | 3.26 | 0.643 | 0.524 |
1
Values are means of 4 replicates per treatment with 1 bird each.
a–b
Means in the same row without the same superscript differ significantly (P < 0.05).