TRIPANOSSOMÍASE EM BOVINO NA MICRORREGIÃO DO AGRESTE PARAIBANO - RELATO DE CASO

Abstract

Trypanosomiasis is a disease of great economic impact in the production of ruminants, related to fall in production, reproductive problems and mortality. T. vivax is a parasite of blood cells that infects a large number of wild and domestic ungulates. The blood forms are transmitted directly from the mammalian host to the other by the bite of hematophagous insects or by fomites. The clinical picture is influenced by several factors, such as race and health status of infected cattle, and the clinical signs developed are: anemia, lethargy, progressive weight loss, fertility decline and milk and meat production, abortion, agalactia and , eventually death. The diagnosis of trypanosomiasis can be based more on parasitological, from stained blood smears, microcapillary blood centrifugation techniques, serological tests and molecular methods such as Polymerase Chain Reaction (PCR). The present work aims to describe the occurrence of trypanosomiasis in cattle in the Agreste Paraibano micro region, in the municipality of Remígio, and characterize its clinical aspects. In September 2017, a field service of three of 18 cattle of the herd was carried out in the municipality of Remígio, with an initial clinical picture suggestive of parasitic sadness. Blood samples were collected from the animals, which were used to perform blood counts, and also the production of blood smears from the ear tip. Of the three cattle examined, in only one individual was it possible to observe the presence of T. vivax on the blood smear blade. Through this result, another visit to the property was made. On the second occasion, the collection of blood and the manufacture of blood smears of the ear tip of all 18 animals were performed. In the results of the hemograms six of the 18 bovines presented globular volume close to the minimum reference value, but it was not possible to visualize the presence of the protozoa in the prepared slides. Because it is a disease that can be transmitted to other animals, through bites of hematophagous insects or through contaminated fomites, early diagnosis and treatment of positive animals are probably the most important methods by which trypanosomiasis is controlled in domestic animals. recommended the treatment of cattle, in order to avoid their spread within the herd and neighboring regions