Table 5 Descriptive statistic and univariable analysis (logistic regression) of the microbiological examination in the feeding regime working with dry feed system grouped by case and control herds
Dry feeding system | Case herds (n = 34) Median (min-max) | Control herds (n = 33) Median (min-max) | Odds ratio | Lower 95% confidence limit | Upper 95% confidence limit | p-Value |
|---|---|---|---|---|---|---|
Total aerobs first drainpipe | 9.8 (8.0-12.6) | 11.4 (8.0-15.6) | 1.7 | 1.0 | 2.8 | 0.01 |
Enterobacteriaceae first drainpipe | 3.4 (2.3–8.1) | 5.9 (2.3–11.9) | 1.4 | 1.0 | 2.0 | 0.02 |
Yeasts first drainpipe | 2.8 (2.3–4.6) | 4.4 (2.3–14.7) | * not applicable | * not applicable | * not applicable | 0.09 |
Total aerobs last drainpipe | 9.8 (8.7–12.7) | 11.3 (8.1–15.6) | 1.8 | 1.0 | 3.2 | 0.02 |
Enterobacteriaceae last drainpipe | 3.0 (2.3–7.3) | 5.1 (2.3–11.9) | 1.3 | 0.9 | 1.9 | 0.05 |