Table 1.
Prevalence of Enterococcus faecalis originating from Brown or White Lohmann layer parents flocks aged 45 weeks from the same farm.
| Flock | Age of chickens (hours) | PCR positive E. faecalis | Total samples | Prevalence in % | CI95% * | Yates corrected Chi2 value | P |
|---|---|---|---|---|---|---|---|
| Brown | 0 | 14 | 100 | 14.0 | 0.094-0.247 | 98.8 | 0.000 |
| Brown | 24 | 58 | 60 | 96.7 | 0.991-0.999 | ||
| White | 0 | 1 | 200 | 0.5 | 0.001-0.036 | 41.4 | 0.000 |
| White | 24 | 28 | 120 | 23.3 | 0.161-0.319 |
All isolates were confirmed to be E. faecalis by a species specific polymerase chain reaction (PCR).
* CI95% is the 95% confidence interval.