AÇÃO ANTIMICROBIANA DO EXTRATO DE AROEIRA (Schinus terebinthifolius)

Abstract

This study presents the activities developed during the mandatory veterinary internship and the research project evaluating the antimicrobial action of Schinus terebinthifolius (aroeira) extract. The internship was conducted in two stages: Clinical Pathology at the Diagno Vet Veterinary Laboratory and Bacteriology at the Veterinary Bacteriology Laboratory (LABAC–FAMEZ/UFMS), totaling 480 hours. Activities included sample reception, pre-analytical evaluation, execution of hematological, biochemical, parasitological and microbiological exams, identification of microorganisms using classical and automated methods, and antimicrobial susceptibility testing. The research project aimed to assess the in vitro antimicrobial activity of the aqueous extract of Schinus terebinthifolius against bacterial isolates obtained from clinical cases of otitis and dermatitis in small animals. The extract was tested using the disk diffusion method, and the results indicated inhibitory activity against clinically relevant bacteria, including Staphylococcus pseudintermedius and Gram-negative bacilli, although with variable intensity depending on the microorganism. The findings reinforce the importance of laboratory diagnostics in veterinary practice and highlight the potential of plant-derived products as complementary therapeutic tools in the context of increasing antimicrobial resistance.