Table 1 Percentage of antibody- and virus positive gilts/sows and piglets at the different sampling times
Herd | Sow herd vaccination | Quarantine in | Quarantine out | Mating unit | Gestation unit | Farrowing unit – sows | Farrowing unit – piglets | |||
|---|---|---|---|---|---|---|---|---|---|---|
Ab (%) | Virus (%) | Ab (%) | Virus (%) | Virus (%) | Ab (%) | Ab (%) | Virus (%) | Virus (%) | ||
1 | No | 12/20 (60) | 0/20 (0) | 7/20 (35) | 6/20 (30) | 0/20 (0) | 12/20 (60) | 11/20 (55) | 0/20 (0) | 0/20 (0) |
2 | No | 7/20 (35) | 0/20 (0) | 7/20 (35) | 0/20 (0) | 0/20 (0) | 14/20 (70) | 8/20 (40) | 0/20 (0) | 2/20 (10) |
3 | No | 14/20 (70) | 0/20 (0) | 5/20 (25) | 0/20 (0) | 0/20 (0) | 11/20 (55) | 10/20 (50) | 0/20 (0) | 0/20 (0) |
4 | No | 5/20 (25) | 0/20 (0) | 17/20 (85) | 4/20 (20) | 0/20 (0) | 13/20 (65) | 9/20 (45) | 0/20 (0) | 7/20 (35) |
5 | No | 19/20 (95) | 0/20 (0) | 20/20 (100) | 0/20 (0) | 0/20 (0) | 19/20 (95) | 20/20 (100) | 0/20 (0) | 3/20 (15) |
Total | 57/100 (57) | 0/100 (0) | 56/100 (56) | 10/100 (10) | 0/100 (0) | 69/100 (69) | 58/100 (58) | 0/100 (0) | 12/100 (12) | |
6 | Yes | 3/20 (15) | 10/20 (50) | 5/20 (25) | 3/20 (15) | 1/20 (5) | 20/20 (100) | 20/20 (100) | 0/20 (0) | 0/20 (0) |
7 | Yes | 0/20 (0) | 0/20 (0) | 17/20 (85) | 0/20 (0) | 1/20 (5) | 16/20 (80) | 17/20 (85) | 1/20 (5) | 0/20 (0) |
8 | Yes | 14/20 (70) | 0/20 (0) | 20/20 (100) | 8/20 (40) | 1/20 (5) | 20/20 (100) | 20/20 (100) | 0/20 (0) | 1/20 (5) |
9 | Yes | 13/20 (65) | 2/20 (10) | 4/20 (20) | 1/20 (5) | 0/20 (0) | 20/20 (100) | 20/20 (100) | 1/20 (5) | 2/20 (10) |
10 | Yes | 11/20 (55) | 0/20 (0) | 20/20 (100) | 1/20 (5) | 1/20 (5) | 16/20 (85) | 18/20 (90) | 2/20 (10) | 9/20 (45) |
Total | 41/100 (41) | 12/100 (12) | 66/100 (66) | 13/100 (13) | 4/100 (4) | 92/100 (92) | 95/100 (95) | 4/100 (4) | 12/100 (12) | |