Prevalence of Escherichia Coli Isolated from Oropharynx and Trachea of Clinically Sick Poultry and Antimicrobial Resistance Pattern of the Strains Isolated

• DOI: 10.2139/ssrn.4428702
• Publication Date: 2023-05-01T19:22:51Z
• Authors: Tanima Ferdous Fe...; Sabuj Kanti Nath; Shaolin Ferdouse; Md. Shahadat Hos...; Yaing Nue Frue M...; M. Sohidullah; Paritosh Kumar B...
• Keywords: Escherichia

The study was carried out to investigate the isolation of Escherichia coli from tracheal and oropharyngeal swab clinically sick chickens. antibiotic susceptibility patterns isolates several antimicrobials were determined with a striking emphasis on oxytetracycline. PCR technique applied detect tetA, tetB, tetC in tetracycline-resistant isolates. initially screened for their resistance against 6 six different groups using disc diffusion technique. results showed that 41% tracheal, 51% oropharyngeal, 34% samples both sites E. positive respectively. Antimicrobial profiling revealed all resistant oxytetracycline sulphamethoxazole-trimethoprim, also 90%, 82.9%, 63.4%, 39% ciprofloxacin, amoxicillin, gentamicin, colistin Notably, 82.9% (95% CI 68.4% - 91.8%) ≥3 means these multi-drug resistant. Among isolates, 85.4% 71.2% 93.5%), 29.3% (7.5% 44.6%), 7.3% (1.8% 20.1) genes frequency is greater than kinds samples. Commercial poultry strains has acquired extensive evolved because acquisition tetA gene predominantly along variable possession some other tet genes.