TABLE 2.
Genotypic diversity of C. jejuni isolates among farms, seasons, and management groups
| Isolate group | No. of:
|
Index of diversitya | ||
|---|---|---|---|---|
| Isolates | STs | Clonal complexes | ||
| All isolates | 297 | 41 | 17 | 0.829 |
| Farms | ||||
| 2 | 46 | 18 | 12 | 0.823 |
| 4 | 32 | 12 | 7 | 0.786 |
| 3 | 103 | 19 | 10 | 0.785 |
| 1 | 87 | 16 | 9 | 0.752 |
| 5 | 29 | 4 | 2 | 0.123 |
| Seasons | ||||
| Summer | 88 | 23 | 11 | 0.837 |
| Winter | 63 | 17 | 10 | 0.832 |
| Autumn | 49 | 19 | 11 | 0.827 |
| Spring | 97 | 20 | 13 | 0.820 |
| Management groups | ||||
| Dry | 25 | 11 | 8 | 0.887 |
| Lactating | 47 | 15 | 11 | 0.862 |
| Heifer | 63 | 22 | 11 | 0.839 |
| Unweaned | 123 | 14 | 8 | 0.825 |
| Weaned | 36 | 17 | 8 | 0.803 |
a
Simpson's index of diversity for isolates of each farm, season, and management group based on clonal complexes, in order of descending diversity.