Table 3.
Effects of tannic acid concentration treatments of ground corn on the number of observed species and alpha diversity of bacterial community structures.
| Items | TA treatments | SEM | P -value | ||||
|---|---|---|---|---|---|---|---|
| 0 | 0.015 | 0.025 | 0.035 | Linear | Quadratic | ||
| OTU | 876 | 910 | 917 | 918 | 11.2509 | 0.001 | 0.050 |
| Good's coverage | 0.99 | 0.99 | 0.99 | 0.99 | 0.0003 | 0.389 | 0.885 |
| Shannon index | 5.12 | 5.26 | 5.25 | 5.29 | 0.0277 | <0.001 | 0.030 |
| ACE | 1106 | 1125 | 1143 | 1138 | 19.9173 | 0.078 | 0.387 |
| Chao 1 | 1127 | 1137 | 1166 | 1171 | 24.6357 | 0.048 | 0.900 |
| Simpson index | 0.017 | 0.013 | 0.014 | 0.012 | 0.0008 | <0.001 | 0.038 |
Con, water treatment; TA, tannic acid treatment; SEM, standard error of the mean; OUT, operational taxonomic units; ACE, abundance-based coverage estimator. Data represent the means of 9 replicates (n = 9).