Table 5.
Results of EP (enzootic pneumonia) and pleurisy score and percentage of pigs with EP, pleurisy, lesions of APP (Actinobacillus pleuropneumoniae) and abscess recorded at slaughter for pigs with in-feed antibiotics (ABI) and without in-feed antibiotics (NOI)
| Variables | NOI | ABI | P-value |
|---|---|---|---|
| EP score1,a | 3.8 ± 6.75 | 5.0 ± 9.40 | 0.365 |
| Pleurisy score1,b | 0.5 ± 0.82 | 0.6 ± 0.83 | 0.460 |
| EP % | 40.8 | 41.3 | 0.945 |
| Pleurisy % | 33.7 | 41.3 | 0.277 |
| APP % c | 0 | 1.1 | 0.300 |
| Abscess % c | 0 | 2.2 | 0.142 |
1Data are presented as mean ± SE
%= percentage of pigs affected by EP (enzootic pneumonia), pleurisy, APP (Actinobacillus Pleuropneumonia) and abscess
aScored according to the British Pig Executive, British Pig Health Scheme (2016)
bScored using the Slaughterhouse Pleurisy Evaluation System (SPES; Dottori et al., 2007) from 0 = no lesions to 4 = severely extended lesions (at least 1/3 of both diaphragmatic lobes) and/or acute (exudation and abundant granulation tissue)
cRecorded as present or absent