Group | Number of tested animals | Number of seropositive animals (dilution 1:50; titer < 50) | Ranges of antibody titers in seropositive animals | ||||
---|---|---|---|---|---|---|---|
50–99 | 100–199 | 200–399 | 400–799 | 800–1599 | |||
Finishing pigs on farms with high hygiene standards | 167 | 9 (5.4%) | 8 (4.8%) | 0 (0%) | 1 (0.6%) | 0 (0%) | 0 (0%) |
Finishing pigs on farms with low hygiene standards | 115 | 47 (40.9%) | 17 (14.8%) | 4 (3.5%) | 1 (0.9%) | 7 (6.1%) | 5 (4.3%) |
Finishing pigs on farm with high level of biosecurity | 40 | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
Finishing pigs on organic farms | 116 | 61 (52.6%) | 4 (3.45%) | 2 (1.75%) | 10 (8.6%) | 16 (13.8%) | 13 (11.2%) |
Subtotal: | 438 | 117 (26.7%) | 29 (6.6%) | 6 (1.4%) | 12 (2.7%) | 23 (5.3%) | 18 (4.1%) |
Pigs at < 3 months | 63 | 7 (11.1%) | 2 (3.15%) | 2 (3.15%) | 3 (4.8%) | 0 (0%) | 0 (0%) |
Finishing pigs at 3–4 months | 60 | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
Finishing pigs at 5–6 months | 57 | 7 (12.3%) | 5 (8.8%) | 0 (0%) | 1 (1.75%) | 0 (0%) | 0 (0%) |
Sows at ≥ 9 months | 142 | 62 (43.7%) | 6 (4.2%) | 3 (2.1%) | 17 (12%) | 9 (6.3%) | 0 (0%) |
Subtotal: | 322 | 76 (23.6%) | 13 (4%) | 5 (1.6%) | 21 (6.5%) | 9 (2.8%) | 0 (0%) |
Total: | 760 | 193 (25.4%) | 42 (5.5%) | 11 (1.4%) | 33 (4.3%) | 32 (4.2%) | 18 (2.4%) |