Table 2.
OTUs contributing significantly to differences in microbial communities between chicks on control versus antimicrobial-supplemented diets
| Age of birda (days) | Treatment differing from control | Discriminating OTU(s) for groupb |
|
|---|---|---|---|
| Control | Antimicrobial treated | ||
| Ileum | |||
| 3 | Avilamycin | 220 | 60, 86, 492, 518, 536, 560/562 |
| Flavophospholipol | 220 | 86, 180, 186, 492, 518, 560, 566 | |
| 5 | Flavophospholipol | 186, 574 | 176, 180, 210/212, 566, 938 |
| 7 | Flavophospholipol | 186/188, 574 | 170, 178, 184, 210, 248 |
| 10 | Flavophospholipol | 186, 574 | 178/180, 212, 936 |
| 12 | Avilamycin | 186, 284/286, 936 | 152, 176, 212, 574 |
| Flavophospholipol | 186, 284/286, 894 | 152, 170, 176/178, 212, 936 | |
| Zinc bacitracin | 78, 86, 186, 284/286, 894 | 152, 176, 178/180, 212 | |
| 14 | Avilamycin | 86, 284/286, 574, 894 | 70, 180, 566 |
| Flavophospholipol | 86, 284/286, 894 | 70, 80, 180, 518, 566 | |
| Zinc bacitracin | 86, 284/286, 574, 894 | 70, 178/180, 566 | |
| 17 | Avilamycin | 86, 186/188, 284/286, 574, 894, 936 | 70, 178/180, 566 |
| Flavophospholipol | 86, 186/188, 284/286, 574, 894 | 70, 178/180, 566, 936 | |
| Ceca | |||
| 3 | Zinc bacitracin | 220 | 198, 910 |
| 5 | Avilamycin | 140/142, 180, 286/288, 296, 482 | |
| Flavophospholipol | 140/142, 286/288, 290, 296, 480/482, 564 | 178/180, 200, 216/218, 476 | |
| 7 | Flavophospholipol | 140/142 | 178/180, 198/200, 286, 476, 520, 564 |
| 17 | Avilamycin | 78, 144/146, 284/286, 296/298, 482, 536, 910 | 68, 140/142, 198, 216/218, 520 |
| Flavophospholipol | 78, 140/142, 144/146, 284/286, 536, 910 | 216, 294, 310, 490 | |
a
Age groups where significant differences between control and antimicrobial treatment groups were detected in gut microbial community compositions as determined by ANOSIM (Table 1).
b
OTUs identified by SIMPER as significantly discriminating between control and antimicrobial treatment groups. OTUs identified as being more abundant within a particular treatment group are indicated. OTUs in boldface type have been cloned and sequenced.