http://lattes.cnpq.br/3630237002559250; DUTRA, Araceli Alves.
Resumo:
External otitis is an acute or chronic inflammatory disease that affects the outer ear of dogs
and cats, causing inflammation, erythematous plaque, discomfort, head agitation, pain,
secretion, unpleasant odor and moist dermatites, representing up to 20% of dogs and 7% of
cats in the clinical routine. The main bacterias isolated are Staphylococcus intermedius,
Pseudomona aeruginosa, Proteus spp., Streptococcus spp, Escherichia coli and
Corynebacterium spp. Copaiba oil is a clear liquid obtained through the Copaiba tree and has
several uses in popular medicine, some of which have already been proven in several studies.
Considering the abundance of resistance of the microorganisms to the different
antimicrobials, it is necessary the constant search for new therapies. Copaiba oil was tested
against 16 bacterial samples isolated from animals with external otitis, including
Staphylococcus spp., Pseudomonas aeruginosa, Escherichia coli and Enterobacter., using the
Minimum Inhibitory Concentration (MIC) in Macrodilution in tubes. For the Staphylococcus
spp. bacteria, the oil showed efficacy between 10% to 0.3% concentrations in 90% of the
strains tested. For the other bacterias, Gram negative, oil showed no efficacy in any of the
samples tested. Concluding that the oil shows efficacy against the Gram positive bacteria
tested, but ineffective for the Gram negative, requiring further in vivo studies, in order to
obtain products as support tools for treatments of infections in animals.