Table 1.
Diversity indexes for OTU in the alimentary tract of steers classified as having a greater or less ADG at the average feed intake
| Location | Chao1 | Shannon | Simpson | InvSimpson |
|---|---|---|---|---|
| Experiment 1 | ||||
| Rumen | ||||
| Less ADG (n = 8) | 514 ± 29 | 3.49 ± 0.10 | 0.91 ± 0.01 | 14.9 ± 1.8 |
| Greater ADG (n = 8) | 551 ± 29 | 3.29 ± 0.10 | 0.92 ± 0.01 | 11.3 ± 1.8 |
| PTreatment | 0.38 | 0.17 | 0.21 | 0.18 |
| Experiment 2 | ||||
| Rumen | ||||
| Less ADG (n = 8) | 411 ± 27 | 3.32 ± 0.11 | 0.90 ± 0.01 | 10.7 ± 1.1 |
| Greater ADG (n = 8) | 410 ± 27 | 3.20 ± 0.11 | 0.89 ± 0.01 | 9.6 ± 1.1 |
| PTreatment | 0.98 | 0.48 | 0.45 | 0.49 |
| Duodenum | ||||
| Less ADG (n = 8) | 447 ± 52 | 3.68 ± 0.13 | 0.93 ± 0.01 | 17.5 ± 1.1 |
| Greater ADG (n = 8) | 399 ± 52 | 3.79 ± 0.13 | 0.95 ± 0.01 | 20.3 ± 1.1 |
| PTreatment | 0.53 | 0.55 | 0.25 | 0.47 |
| Jejunum | ||||
| Less ADG (n = 7) | 266 ± 9 | 2.20 ± 0.08 | 0.80 ± 0.02 | 5.1 ± 0.4 |
| Greater ADG (n = 6) | 291 ± 10 | 2.02 ± 0.08 | 0.75 ± 0.02 | 4.2 ± 0.4 |
| PTreatment | 0.09 | 0.14 | 0.09 | 0.14 |
| Ileum | ||||
| Less ADG (n =6) | 291 ± 20 | 2.13 ± 0.08 | 0.77 ± 0.02 | 4.7 ± 0.5 |
| Greater ADG (n =5) | 340 ± 22 | 2.14 ± 0.09 | 0.77 ± 0.02 | 4.5 ± 0.5 |
| PTreatment | 0.13 | 0.94 | 0.98 | 0.80 |
| Cecum | ||||
| Less ADG (n = 8) | 1,120 ± 104 | 4.71 ± 0.13 | 0.96 ± 0.01 | 29.3 ± 4.1 |
| Greater ADG (n = 8) | 1,202 ± 104 | 2.85 ± 0.13 | 0.97 ± 0.01 | 32.6 ± 4.1 |
| PTreatment | 0.99 | 0.45 | 0.43 | 0.58 |
| Colon | ||||
| Less ADG (n = 7) | 514 ± 29 | 3.49 ± 0.10 | 0.92 ± 0.01 | 14.9 ± 1.8 |
| Greater ADG (n = 5) | 551 ± 29 | 3.29 ± 0.10 | 0.91 ± 0.01 | 11.3 ± 1.8 |
| PTreatment | 0.38 | 0.17 | 0.21 | 0.18 |