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Archivos de medicina veterinaria

versión impresa ISSN 0301-732X

Resumen

DUARTE, ER et al. Yeasts isolated from beef heifers with ringworm. Arch. med. vet. [online]. 2013, vol.45, n.1, pp.71-75. ISSN 0301-732X.  http://dx.doi.org/10.4067/S0301-732X2013000100012.

Bovine dermatophytosis has a negative impact in cattle breeding and can cause zoonoses. The aim of this study was to report a ringworm outbreak in Brazil and to evaluate the presence of yeast in the lesions. After weaning, 88 hybrid beef heifers in feedlot were clinically investigated. Lesions suggestive of ringworm were observed in 95.5% of the animals. Hyaline hiphae were observed in 58.3% of the samples using direct microscopy with potassium hydroxide. Skin scrapings from 27 heifers with ringworm were inoculated Sabouraud dextrose agar and Mycosel Agar. Nineteen isolates of Trichophyton spp. were identified according to micromorphological characteristics observed with microculture technique. Yeasts were isolated from 24 heifers (88.8%) and the most frequently identified species were Candida lusitaniae and C. glabrata. The meaning of these yeast species in the aetiology and pathogeny of bovine dermatophytosis may be evaluated in further epidemiological investigations.

Palabras clave : beef cattle; ringworm; filamentous fungi; yeasts; weaning.

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