Biological characteristics of Escherichia coli isolatep from pigeons |
Dong-kyun Seo1, Won-pil Choi1, No-chan Park2 |
1College of Veterinary Medicine, Kyungpook National University 2Kyungpook Animal Health Laboratory |
비둘기 유래(由來) 대장균(大腸菌)의 생물학적(生物學的) 특성(特性)에 대하여 |
서동균1, 최원필1, 박노찬2 |
1경북대학교 수의과대학 2경북가축위생시험소 |
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Abstract |
The purpose of this study was to examine O serotypes, colicin and hemolysin production. antibiotic susceptibility and haemagglutinating ability to animal erythrocytes among Escherichia coli strains isolated from pigeons in Taegu province. Of the 166 strains isolated, 28 strains (16.9%) were classified into 6 O serotypes and their types were O20(42.9%), O15(17.9%), O139(14.3%), O101(10.7%), O149(7.1%) and O8(7.1%). Of the 166 strains isolated, none was hemolytic and 3(1.8%) were colicinogenic. Antibiotic susceptibility test of Escherichia coli isolates was performed by the agar dilution method, using ampicillin, chloramphnicol, gentamicin, rifampicin, streptomycin (Sm), nalidixic acid, sulfadimethoxine and tetracycline (Tc). Forty four strains (26.5%) were resistant to one or more drugs and the most common resistance patterns were SmTc (27.3%). Of the 44 drug resistant strains, 6 strains haemagglutinated erythrocytes of chicken, guinea pig and 2 of the 6 strains agglutinated goose erythrocytes. |
Key Words:
Escherichia coli, pigeon, serotype, plasmid |
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