Table 1.
Incidence of pleuritis and pneumonia registered at slaughter in four fattening herds with high prevalence of pleuritic lesions recorded at slaughter during 1 year (mean percentage ± standard deviation)
| Pleuritis | Pneumonia | |||||
|---|---|---|---|---|---|---|
| Mycoplasma-like | Resembling acute A. pleuropneumoniae | |||||
| Preceding 4 quarters (%) | Study quarter (%) | Preceding 4 quarters (%) | Study quarter (%) | Preceding 4 quarters (%) | Study quarter (%) | |
| Herd A | 32.9 ± 1.0 | 33.1 | 0.8 ± 0.8 | 1.2 | 0.2 ± 0.1 | 0.3 |
| Herd B | 26.7 ± 5.9 | 21.5 | 10.0 ± 2.7 | 7.5 | 1.4 ± 1.7 | 0.8 |
| Herd C | 19.3 ± 2.6 | 20.5 | 1.1 ± 1.1 | 0.8 | 1.5 ± 0.8 | 0.4 |
| Herd D | 26.9 ± 11.5 | 26.1 | 3.2 ± 4.4 | 3.8 | 0.2 ± 0.2 | 0.3 |
The table also shows the prevalence of pleuritis and pneumonia during the quarter of a year when serological profiles were established for individual pigs regarding antibodies to selected bacterial infections. For details, see “Methods” section