Multiple antibiotic resistance (MAR) index and plasmids in Escherichia coli

Zainuri A., . and Razali H., . and Rusul G., . and Radu Son, . and Syamir A., . and Sahilah A. M., . Multiple antibiotic resistance (MAR) index and plasmids in Escherichia coli. pp. 23-25. ISSN 9128-2506

A total of 198 strains of Escherichia coli 134 from frozen beef samples and 64 from duck intestine samples were examined for resistance to six antibiotics and for presence of plasmid DNA. More than 90 of the strains were resistant to two or more antibiotics tested with the most common resistance being penicillin (100) cephalothin (76.8) and streptomycin (64.1). The least resistance was observed to ampicillin (9.6) and kanamycin (12.6). Multiple antibiotic resistance indexing of the strains showed that more than 90 originated from high risk contamination environments where antibiotics were often used. Plasmids ranging in size from 1.2 to 65 Msa were detected in 44 of 64 (68.7) isolates from duck intestine samples and 79 of 134 (59) isolates from beef samples. The plasmid analysis indicated the presence of more than a single clone with the same antibiotic resistance pattern. The data obtained in this study indicated that animals form a reservoir for multiple-resistant and plasmid-containing Escherichia coli in the study area.

Full text available from: Official URL: https://www.mavma.org.my/1997-volume-9-issue-no-1-...

Abstract

A total of 198 strains of Escherichia coli 134 from frozen beef samples and 64 from duck intestine samples were examined for resistance to six antibiotics and for presence of plasmid DNA. More than 90 of the strains were resistant to two or more antibiotics tested with the most common resistance being penicillin (100) cephalothin (76.8) and streptomycin (64.1). The least resistance was observed to ampicillin (9.6) and kanamycin (12.6). Multiple antibiotic resistance indexing of the strains showed that more than 90 originated from high risk contamination environments where antibiotics were often used. Plasmids ranging in size from 1.2 to 65 Msa were detected in 44 of 64 (68.7) isolates from duck intestine samples and 79 of 134 (59) isolates from beef samples. The plasmid analysis indicated the presence of more than a single clone with the same antibiotic resistance pattern. The data obtained in this study indicated that animals form a reservoir for multiple-resistant and plasmid-containing Escherichia coli in the study area.

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Item Type:	Article
AGROVOC Term:	Escherichia coli
AGROVOC Term:	Ducks
AGROVOC Term:	Beef
AGROVOC Term:	Bacterial diseases
AGROVOC Term:	Drug resistance
AGROVOC Term:	Antibiotics
AGROVOC Term:	Ampicillin
AGROVOC Term:	Kanamycin
AGROVOC Term:	Penicillins
AGROVOC Term:	Streptomycin
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8853

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