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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The aim of the study was to detect the tet A gene coding for tetracycline resistance in ESBL-producing strains of Escherichia coli isolated from faecal waste from pigs used as manure. Thirty-five E. coli strains containing genes coding for ESBL resistance were used in the study. These strains were isolated from faecal waste from pigs used to produce manure. They were identified using biochemical tests. An antibiotic susceptibility test was carried out using the agar diffusion antibiogram technique to determine antibiotic resistance profiles and confirmed the presence of ESBL production. PCR was carried out to search for the tet A gene coding for tetracycline resistance in strains likely to produce ESBL. Antibiogram results of the 35 E. coli strains confirmed the ESBL phenotype. These strains were resistant to several antibiotics. The rate of resistance to tetracycline was 100%. All these strains harboured the tet A resistance gene. They also presented five genetic combinations, the most predominant of which was bla TEM, tet A with a frequency of 38%. The detection of tet A resistance genes in E. coli represents a risk to public health. Resistance genes circulating in the digestive flora of farm animals therefore need to be monitored to prevent their spread.
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