[Microbiological results of ear swabs from dogs and cats].

413 swabs of dogs and cats ears were examined microbiologically. Bacteria could be isolated in 82% and yeasts or moulds in 28% of the cases. The most common bacteria species were coagulase-positive Staphylococci, Pseudomonas spp., beta-hemolytic streptococci, and Proteus spp. with Staphylococci being the most common isolate. Within the group of yeasts and moulds Malassezia pachydermatis was isolated most frequently (90%). From the results of in vitro antibiotic tests, a general recommendation for the treatment of otitis externa nonparasitaria could not be given.