Occurrence and antimicrobial resistance profile of bacterial isolates from urine cultures of dogs treated at a university veterinary hospital
DOI:
https://doi.org/10.31533/pubvet.v20n6e1961Keywords:
dogs, multidrug resistance, urine cultureAbstract
Antimicrobial resistance represents a major challenge in veterinary medicine, particularly in the management of urinary tract infections (UTIs) in dogs, which are among the leading causes of antimicrobial prescriptions in small animal practice. This study aimed to evaluate the occurrence and antimicrobial resistance profile of bacterial isolates recovered from urine samples of dogs treated at the Veterinary Hospital of Unesp – Jaboticabal. A cross-sectional observational study was conducted using convenience samples, based on the analysis of microbiological culture and antimicrobial susceptibility testing (AST) results from samples collected between January 6 and November 30, 2025. Thirty-one positive urine samples were analyzed, yielding a total of 35 bacterial isolates. Gram-negative bacteria predominated among the isolates, with Escherichia coli being the most frequently identified species. Overall, 42.9% of the isolates exhibited resistance to at least one antimicrobial agent, whereas 15.8% were classified as multidrug-resistant. In conclusion, although most isolates showed a favorable susceptibility profile, the detection of resistant microorganisms highlights the need for prudent antimicrobial use and routine antimicrobial susceptibility testing to support the appropriate management of canine urinary tract infections.
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