Frequency of dermatophytes and yeasts in the tegument of healthy dogs and cats
DOI:
https://doi.org/10.62331/2965-758X.v1.2023.12Keywords:
Microsporum, Trichophyton, Candida, Malassezia, DermatophytosisAbstract
The objective of the research was to verify the frequency of dermatophytes and yeasts in healthy dogs and cats. For this purpose, samples of hair and desquamation of 30 cats and 30 dogs were sown on DTM medium and Sabouraud Dextrose agar enriched with yeast extract, thiamine, antibiotics (streptomycin and chloramphenicol) supplemented with cycloheximide and incubated at 25ºC and 35ºC for 10 days. Positive cultures were evaluated macro and microscopically, and the fungi identified by biochemical methods. It was found that 100% of the cats had a positive mycological culture for Microsporum canis, 33.33% for M. gypseum and 50% for Trichophyton mentagrophytes, verifying the prevalence of M.canis (p>0.001). In dogs, 86.66% were positive for M. canis, with prevalence over other fungal species (p<0.001). Malassezia pachydermatis was isolated in 50% of the evaluated dogs, however it was not found in cats, since positive cultures for Malassezia spp were found in 6.6% of the cats and in 26.66% of the dogs. Candida albicans isolated from samples of dogs and cats (26.66% and 33.33%, respectively). The results of this study showed that asymptomatic dogs and cats are carriers of dermatophytosis and dermatomycosis agents, and may be important sources of environmental contagion and intra and interspecific infection.
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