TABLE 1.
Prevalence of H. pullorum in the farms, flocks, and collected ceca within each poultry company
| Poultry company | No. of positive farms/total (%)a | No. of positive flocks/total (%)b | No. of positive ceca/total (%) | Type of rearing |
|---|---|---|---|---|
| A | 5/5 (100) | 5/5 (100) | 23/25 (92) | Conventional |
| B | 5/5 (100) | 6/6(100) | 18/30 (60) | Conventional |
| 2/4 (50) | 2/4 (50) | 10/20 (50) | Free range | |
| C | 6/6 (100) | 7/7 (100) | 30/35 (85.7) | Conventional |
| 2/3 (66.7) | 3/4 (75) | 13/20 (65) | Free range | |
| D | 4/4 (100) | 4/4 (100) | 20/20 (100) | Conventional |
| 6/6 (100) | 6/6 (100) | 29/30 (96.7) | Organic | |
| E | 5/5 (100) | 7/7 (100) | 32/35 (91.4) | Conventional |
| F | 5/5 (100) | 5/5 (100) | 19/24 (79.2) | Conventional |
| G | 2/2 (100) | 2/2 (100) | 9/9 (100) | Organic |
| Total | 42/45 (93.3) | 47/50 (94) | 203/248 (81.8) |
a
Positive farms were considered farms at which at least one H. pullorum-positive flock was detected.
b
Positive flocks were considered flocks at which at least one H. pullorum-positive cecum was collected.