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Veterinary Archives, Vol. 79 No. 5, 2009.

Original scientific paper

Antimicrobial resistance of Enterococcus spp. isolated from livestock in Lithuania

Modestas Ruzauskas ; Veterinary Institute of Lithuanian Veterinary Academy, Kaisiadorys, Lithuania
Marius Virgailis ; Veterinary Institute of Lithuanian Veterinary Academy, Kaisiadorys, Lithuania
Rita Šiugždinienė ; Veterinary Institute of Lithuanian Veterinary Academy, Kaisiadorys, Lithuania
Edita Sužiedėlienė ; Vilnius University, Vilnius, Lithuania
Vaida Šeputienė ; Vilnius University, Vilnius, Lithuania
Rimantas Daugelavičius ; Vilnius University, Vilnius, Lithuania
Dainius Zienius
Alvydas Pavilonis ; Kaunas University of Medicine, Kaunas, Lithuania

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Abstract

105 isolates of Enterococcus spp. were selected as representative samples from different herds of pigs (n=25), cattle (n=46) and poultry (n=34). Antimicrobial susceptibility was determined according to epidemiological cut-off values. The highest number of strains demonstrated epidemiological resistance to lincomycin (78%), tetracycline, (65%), flavomycin (59%) and erythromycin (55%). The smallest number of strains was resistant to linezolid (1%) and tigecycline (2%). Six percent of all tested strains were epidemiologically resistant to
ciprofloxacin, vancomycin and daptomycin. Cattle isolates showed the most frequent resistance to fl avomycin (71%), lincomycin (54%), tetracycline (45%), streptomycin (40%) and erythromycin (40%). Enterococci isolated from pigs showed the highest resistance to tetracycline and lincomycin (92%), erythromycin (76%), kanamycin (56%) and streptomycin (52%). All strains isolated from poultry were epidemiologically resistant to lincomycin. The most frequent resistance of poultry strains was also demonstrated to tetracycline (72%), erythromycin (63%), streptomycin (50%), flavomycin (48%) and tylosin (47%). However all strains isolated from poultry were susceptible to chloramphenicol, quinupristin/dalfopristin, linezolid and bacitracin.

Keywords

antibiotics; antimicrobial susceptibility; cut-off values

Hrčak ID:

45604

URI

https://hrcak.srce.hr/45604

Publication date:

26.10.2009.

Article data in other languages: croatian

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