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Characterization of aerobic bacteria in the uterus and cervix of mares with suspected or clinical metritis



Characterization of aerobic bacteria in the uterus and cervix of mares with suspected or clinical metritis



Arquivo Brasileiro de Medicina Veterinaria e Zootecnia 47(5): 633-639



Four hundred and thirty mares with suspected or clinical metritis, were clinically and bacteriologically examined in order to study the relationship between the clinical diagnosis and bacterial contamination of the uterus and cervix. There was a significant correlation between positive clinical diagnosis (cervicitis, endometritis and chronic endometritis) and bacterial contamination, especially with Gram negative organisms. Of the 303 mares (70.4%), including those which were asymptomatic, which showed bacterial contamination, 172 (40%) yielded Gram-negative organisms and 131 (30.4%) Gram-positive bacteria. E. coli (82), K. pneumoniae (26), P. aeruginosa (20), S. aureus (19) and S. zooepidemicus (18) were the most frequent pathogens. The Grain-negative organisms were resistant in vitro to almost all antibiotics, among a panel of 18 tested, whereas the Gram-positive ones (excluding S. aureus and E. faecalis) were all sensitive. Nitrofurantoin, sulfamethoxazole + trimethoprim and gentamycin displayed the most effective antimicrobial action against all isolates.

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