Pneumonia enzoótica em suínos de abate : relação entre lesões pulmonares e renais

• Autor(a) principal: Carrijo, Kênia de Fátima
• Data de Publicação: 2007
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal Fluminense (RIUFF)
• Texto Completo: https://app.uff.br/riuff/handle/1/17963
• topic: Medicina veterinária; Higiene veterinária; Processamento tecnológico de produtos de origem animal; Suíno - Carcaça; Pneumonia por micoplasma; Pneumonia enzoótica suína; Histopatologia; Patologias de animais de abate; Nefrite; Inspeção de carnes; Inspeção sanitária; Matadouro; Frigorífico; Swine enzootic pneumonia; Nephritis; Swine; Slaughterhouse; Histopathology; Sanitary inspection; CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA

Mycoplasma hyopneumoniae, the etiologic agent of Swine Enzootic Pneumonia, represents an important pathogen in the swine industry and causes huge economic losses for the producers and industry due to the delay the weight profit and carcasses condemnation. This microorganism colonizes the ciliated cells of the respiratory tract, diminishing the efficacy of the cellular and humoral host immune system, predisposing to secondary infections. An epidemiological study of the type case-control with slaughtered swine was carried out in one slaughterhouse of the west Santa Catarina state, aiming to verify the relation between pulmonary and renal injuries in swine with Enzootic Pneumonia, as well as to evaluate if the carcass weight is affected by these injuries. Sixty-nine positive lungs fragments of Enzootic Pneumonia and sixty-nine lungs fragments considered normal at post-mortem Sanitary Inspection were collected. Kidneys fragments and mediastinic lymph nodes from the respective animals diagnosed for the disease had also been collected, as well as data on hot carcass weight, fat thickness and amount of lean meat. The fragments were processed by fixation in 10% phormaline and submitted to histopathologic analyzes. Under microscopic examination 57 animals (54,28%) had concomitantly lung and kidney lesions. This association was significant by McNemar s Test (p<0,05). The weight of the hot carcass, fat thickness and amount of lean meat were not affected significantly by the presence of Enzootic Pneumonia (p>0,05). However, the association of pulmonary and renal injuries affected the swine weight. It can be concluded that association between pulmonary and renal injuries in swine with Enzootic Pneumonia existed and that positive animals for Enzootic Pneumonia had greater predisposition to develop nephritis.