Tesis Medicina Veterinaria y Zootecnia
Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/872
Browse
Item Evaluación de pruebas diagnósticas para brucella abortos en bovinos lecheros(2017) Soria Rojas, Monica Abigail; Rosero Peñaherrera, MarcoBovine brucellosis is a disease that presents with worrying frequency, even knowing that this is an anthropozoonotic disease, has not been studied in depth and much less eradication has been achieved. The most common laboratory tests in our country are Rose Bengal (RB) and competitive ELISA (ELISA c), which in the present investigation were evaluate the values of sensitivity, specificity and predictive values. Likewise with the use of the above mentioned tests, it was possible to determine data of actual and apparent prevalence of the event of interest. This essay was carried out in Salache, a neighborhood that is located at 3.849 msnm, belonging to the parish Eloy Alfaro of the canton Latacunga, in the province of Cotopaxi. In which blood samples of 147 bovine were taken, these samples were submitted to Rose Bengal, categorized as screening test; once the results have been obtained those false positives, true positives and false negatives will be submitted to the ELISA c confirmatory test. According to the data reported by the laboratory, the sensitivity and specificity calculations were performed, for Rose Bengal (88.89% and 69%) and ELISAc (88.89% and 0%); we also determined the data for the positive predictive value, which coincided in the two tests at 0.29, while the negative predictive value was for RB of 0.98 and competitive ELISA of 0. For this it is concluded that Rose Bengal to have greater specificity than competitive ELISA, it is recommended its use when the population has a low prevalence of the disease to treat whereas if we know the presence of the same and we need to avoid its dissemination would be used a test with greater sensitivity.