Diagnóstico e fatores de risco associados à cisticercose bovina em matadouros sob inspeção federal e estadual, localizados no município de Colatina-ES

• Autor(a) principal: Vieira, Francyelen Coutinho
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/5086
• topic: ELISA; Cisticercose bovina; Teníase; ELISA; Bovine cysticercosis; Taeniasis; CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA

Bovine cysticercosis is a disease of cosmopolitan distribution and zoonotic feature caused by the larval form of Taenia Saginata. Severe infections are uncommon in cattle, the vast majority of cases found in slaughterhouses are mild infection, and however, it leads to the condemnation of the organ and, in some cases, the conditional avail of the carcass. Considering the risk to public health and economic losses caused by bovine cysticercosis, measures of sanitary control of this zoonosis should be taken not just at slaughterhouses, but also during the production phase. The aim of this study was to evaluate the performance of serological diagnosis in the detection of bovine cysticercosis in field samples, track properties in the city of Colatina-ES that sent animals to slaughtering and to assess the likely risk factors for the animals to be contaminated with Taenia eggs. The study was conducted from the animals slaughter and from the data of Official Inspection Services in three slaughterhouses in Colatina. Three hundred sixteen samples were collected, in which one there were a hundred eighty-three positive samples, sixty-two negative samples from healthy animals and seventy-one negative samples from animals with other diseases such as fascioliasis, hydatidosis and tuberculosis. The samples were analyzed by ELISA and immunoblot methods, and the results were organized in contingency table to calculate the performance of tests determined by the rates of sensitivity and specificity, positive and negative predictive values and agreement. From the Animal Transit Guide (GTA) the addresses of the properties included in the study were obtained, the tracing allowed the realization of the epidemiological survey to assess the risk factors related to the presence of cysticercosis in the region, mapping of the studied region distribution and analysis of cases and controls. The ELISA test did not show sufficient reliability to be used in detecting animals with cysticercosis in mild level, due to the high rate of false-negatives results. On the other hand, the immunoblot showed to be a more reliable method to detect positive samples. The main risk factors associated with cysticercosis in the properties in Colatina were: properties size, animal origin, age of the animals acquired and sewer destination. The diagnosis of cysticercosis in the refrigerator,added to the source information of the animal, allowed to define the areas of disease occurrence and its quantification.