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Simpson's Index (SI) and proportional similarity index (PSI) for APEC in different sampling points.
| Production stage | Simpson's index | PSI | |
|---|---|---|---|
| Phylogroups % | Serotypes % |
Phylogroups*
Serotypesa% |
|
| Breeders | 44 | 95 | - |
| Broiler chicks | 74 | 63 | 7.3 |
| Broilers | 65 | 50 | 55.5 |
| DOA | 63 | 70 | 59.9 |
| Overall | 90 | 87 | 40.9 |
Values represent % occurrence of combined serotype and genotype overlap between subsequent production stages.
