Succession as a Factor in Range Management

Abstract

Detection of Expanded-Spectrum Beta-Lactamase (ESBL) in coliform strains isolated from poultry meat marketed in the city of Fortaleza, State of Ceara. This study was aimed to test the sensitivity of Escherichia coli, Klebsiella pneumoniae and Enterobacter aerogenes strains isolated from poultry meat marketed in the city of Fortaleza, State of Ceara, to several antimicrobial agents, and to detect ESBL-producing strains. 80 poultry meat samples were submitted to an antimicrobial agents susceptibility test (Kirby-Bauer method) and to an ESBL-producing strains (CLSI) screening. The tested antibiotics were amikacine (30 micro g), ampicillin (10 micro g), ciprofloxacin (05 micro g), ceftazidime (30 micro g), streptomycin (10 micro g), doxycycline (30 micro g), gentamicin (10 micro g), imipenem (10 micro g), sulphonamide (300 micro g) and sulfamethoxazol/trimetroprim (25 micro g). The highest resistance percentage found in the 11 Escherichia coli strains was against doxycycline (91%); 27% of the isolated strains were 100% sensitive to amikacin, gentamicin and imipenem. In the 22 isolated strains of Klebsiella pneumoniae, the highest resistance was found to be against ampicillin (94.5%), and the highest sensitivity to gentamicin and sulphamethoxazol/trimetoprim, with 94.5% for both antibiotics. Of the 19 strains of Enterobacter aerogenes, 90.1% were resistant to ampicillin and 94.5%: were sensitive to ciprofloxacin. Only 3 (33%) Klebsiella pneumoniae strains and 3 (60%) Enterobacter aerogenes strains were confirmed as being ESBL producers. We found the poultry meal to bear microorganisms resistant to multiple antimicrobial agents and ESBL producers.