Bacterial pathogens associated with lung lesions in slaughter pigs from 125 herds |
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| Authors: | Fablet C Marois C Dorenlor V Eono F Eveno E Jolly J P Le Devendec L Kobisch M Madec F Rose N |
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| Institution: | Agence Nationale de Sécurité Sanitaire (Anses), Unité Epidémiologie et Bien-Etre du Porc, B.P. 53, 22440 Ploufragan, France. christelle.fablet@anses.fr |
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| Abstract: | Relationships between macroscopic lesions and Polymerase Chain Reaction (PCR) detection of Mycoplasma hyopneumoniae (Mhp), Pasteurella multocida (Pm), Actinobacillus pleuropneumoniae (App), Haemophilus parasuis (Hps) and Streptococcus suis (Ssuis) of the lungs of 3731 slaughter pigs from 125 herds were assessed in France. Pneumonia and pleuritis were the most frequent lesions (69.3% and 15% of the lungs, respectively). Mhp, Pm, App, Ssuis and Hps were detected in 69.3%, 36.9%, 20.7%, 6.4% and 0.99% of the lungs, respectively. Mhp and Pm were associated with pneumonia at both the pig and herd levels. Pleuritis was not associated with any pathogen at the pig level, but was associated with a high percentage of pigs PCR-positive for App at the herd level. Measures focused on control of Mhp, Pm and App should significantly reduce the occurrence of both pneumonia and pleuritis. |
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