| Flock I | Flock II | Flock III | Flock IV | Flock V |
---|---|---|---|---|---|
Total number of birds/flock | 1003 | 2000 | 1400 | 1100 | 1500 |
Age of birds (weeks) | 8 | 8 | 4 | 8 | 6 |
Turkey-line | Kelly BBB | B.U.T. 6 | B.U.T. 6 | Kelly BBB | B.U.T. 6 |
Water supply type | Tap water | Tap water | Well water | Tap water | Tap water |
Type of drinkers | Cups + pendulous | Cups | Cups + drinking trough | Pendulous | Cups |
Number of examined cloacal swabs | 30 | 30 | 30 | 30 | 30 |
No. of positive cloacal swabs | 30 | 27 | 30a | 30a | 30 |
Flock prevalence (%) | 100 | 90 | 100 | 100 | 100 |
No. of isolated C. jejuni | 8 | 19 | 5 | 17 | 20 |
No. of isolated C. coli | 22 | 8 | 30 | 19 | 10 |
Prevalence of C. jejuni (%) | 26.67 | 70.37 | 14.29 | 47.22 | 66.67 |
Prevalence of C. coli (%) | 73.33 | 29.63 | 85.71 | 52.78 | 33.33 |
No. of positive water samples | 1 (C. coli) | 2 (C. jejuni) | 0 | 0 | 0 |
No. of positive beetles sample | 0 | 3 (C. coli) | 0 | 0 | 0 |
No. of C. jejuni genotypes | 3 | 4 | 1 | 2 | 5 |
No. of C. coli genotypes | 2 | 1 | 2 | 4 | 4 |
Temperature (°C) | 15.8 | 23.1 | 21.30 | 21.80 | 15.4 |
Relative humidity (RH in %) | 63.6 | 64.2 | 74.8 | 58.3 | 56.6 |
Ammonia (ppm) | 1 | 14 | 22 | 1 | 0 |
CO2 (ppm) | 500 | 1400 | 800 | 350 | 400 |