Sanitary management and pulmonary lesions in pigs in Metropolitan Recife and the Coastal Zone of the state of Pernambuco, Brazil<br>Manejo higiênico-sanitário e lesões pulmonares em suínos na Região Metropolitana de Recife e Zona da Mata de Pernambuco, Brasil

Abstract

The objective of the present study was to determine the main lesions found during the sanitary inspection of the lungs of slaughtered pigs. The study was carried out at three slaughterhouses registered with the Pernambuco State Inspection System located in metropolitan Recife and the coastal zone of the state of Pernambuco, Brazil. A total of 715 pig lungs were inspected from July 2008 to May 2009. Pulmonary lesions were detected in all herds studied. Among the total number of animals evaluated, 43.8% (313/715) had some type of lung injury. Pneumonia was the most common finding, recorded in 93.0% (291/313) of damaged lungs, followed by petechial hemorrhaging (6.7%; 21/313) and blood aspiration (3.5%; 11/313). Among the lungs submitted to histopathology, the most frequent microscopic finding was granulomatous pneumonia with 32.2% (49/152), followed by 21.7% (33/152) of interstitial pneumonia and 3.2% (14/152) fibrinous bronchopneumonia. There was a significant association between the occurrence of lung lesions and all variables related to the environment in which the animals were raised as well as the type of operation and nutritional status.O trabalho foi realizado em três abatedouros inscritos no sistema de inspeção estadual, localizados na Região Metropolitana de Recife e Zona da Mata do estado de Pernambuco, Brasil. Foram inspecionados 715 pulmões de suínos, no período de julho de 2008 a maio de 2009. As lesões pulmonares foram detectadas em todos os plantéis estudados. Do total dos animais avaliados 43,8% (313/715) apresentaram algum tipo de lesão no pulmão. A pneumonia foi o tipo de lesão mais frequente, registrada em 93,0% (291/313) dos pulmões lesionados seguida de 6,7% (21/313) com hemorragias petequiais e 3,5% (11/313) de aspiração de sangue. Dentre os pulmões submetidos ao exame histopatológico, a lesão microscópica mais frequente foi a pneumonia granulomatosa com 32,2 (49/152), seguida de pneumonia intersticial com 21,7% (33/152) e broncopneumonia fibrinosa 3,2% (14/152). Observou-se associação significativa da ocorrência de lesão de pulmão com todas as variáveis relativas ao ambiente onde os animais são criados, além do tipo de exploração e estado nutricional.

Keywords

• Pneumonia
• Manejo
• Granjas.