Ocorrência de helmintos gastrintestinais e avaliação de métodos de diagnóstico, em cães de Belo Horizonte, Minas Gerais

Abstract

Fecal samples of 313 stray dogs and of 45 dogs attcnded at vetcrinary clinics from Belo Horizonte (MG) were examined by the Shcather's sugar flotatkm technique for helminth eggs. Fifty nine samples were simultancously examined by the sedimentation technique for comparison between methods. Twenty-two animais were necropsied and the gastrointestinal conlents were collccted, fixed in 10% formaldenyde solution for counting and identification of belminths. Hookworm eggs were the most frequent in stray dogs (79.0%) and those of Triclntris vulpis in dogs from clinics (33.3%). Association between helminth species was found in 47(15.0%) and 3(6.7%) fecal samples, respectively, from stray and clinics dogs. Sugar flotation was significantly (p<0.05) more efficient for diagnosis of gastrointestinal helminthiasis than the sedimentation method. At necropsy, 90.9% of dogs were positive for Ancylosíoma spp, 86.4% for Dipylidium caninum, 59.0% for T. vulpis and 45.5% for Toxocara canis.