A new laboratorial method for the diagnosis of gastrointestinal parasites in dogs

• Autor(a) principal: Coelho,Willian Marinho Dourado
• Data de Publicação: 2013
• Outros Autores: Gomes,Jancarlo Ferreira, Amarante,Alessandro Francisco Talamini do, Bresciani,Katia Denise Saraiva, Lumina,Giuliano, Koshino-Shimizu,Sumie, Leme,Denise Pereira, Falcão,Alexandre Xavier
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Brasileira de Parasitologia Veterinária (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612013000100002
• topic: Canine gastrointestinal parasites; TF-Test Modified∕Dog; faeces analysis; parasitological techniques

In this study, we aimed to introduce a new technique calledTF-Test Modified∕Dog for the diagnosis of gastrointestinal parasites in dogs. Fecal samples from 106 dogs were processed by the technique TF-Test Modified∕Dog and the techniques of centrifugation-flotation in zinc sulfate, simple-flotation by saturated solution of sodium chloride, direct microscopy exam and TF-Test Conventional. Sensitivity was higher in the TF-Test Modified∕Dog (98.41%), followed by flotation in saturated zinc sulfate (77.78%), TF-Test Conventional (73.02%), flotation by saturated sodium chloride (55.55%), and direct microscopy exam (30.16%). The diagnostic efficiency varied from 58.49% to 99.06%, with the highest value also obtained by the new proposed technique. Efficiency level of 99.06% with kappa index 0.979 (almost perfect) was obtained with the TF-Test Modified∕Dog. These results represent significant statistical gains (P < 0.05) of 20.63% in sensitivity and 12.27% in efficiency over the best among the other techniques – flotation by saturated zinc sulfate, whose kappa index was 0.738, much lower than that of the TF-Test Modified∕Dog. All techniques presented 100% specificity. In this sense, the high sensitivity of theTF-Test Modified∕Dog makes it suitable for epidemiological surveys of gastrointestinal parasitosis in dogs, zoonoses control and preventive surveillance programs.