Antibiotic resistance and extended-spectrum β-lactamase in Escherichia coli isolates from imported 1-day-old chicks, ducklings, and turkey poults

• Published in: Veterinary World Vol. 13; no. 6; pp. 1037 - 1044
• Main Authors: AbdelRahman, Mona A A, Roshdy, Heba, Samir, Abdelhafez H, Hamed, Engy A
• Format: Journal Article
• Language: English
• Published: India Veterinary World 01-06-2020
• Subjects: Antibiotic resistance; Antibiotics; Antimicrobial resistance; Cefotaxime; Drug resistance; E coli; Escherichia coli; extended-spectrum β-lactamase; imported; Juveniles; multidrug resistance; Nalidixic acid; Poultry; Sulfamethoxazole; Trimethoprim; Trimethoprim-sulfamethoxazole; Yolk; extended-spectrum β-lactamase; multidrug resistance; poultry; Escherichia coli; imported
• ISSN: 0972-8988; 2231-0916
• DOI: 10.14202/vetworld.2020.1037-1044

Antimicrobial resistance is a global health threat. This study investigated the prevalence of
in imported 1-day-old chicks, ducklings, and turkey poults.
The liver, heart, lungs, and yolk sacs of 148 imported batches of 1-day-old flocks (chicks, 45; ducklings, 63; and turkey poults, 40) were bacteriologically examined for the presence of
.
We isolated 38
strains from 13.5%, 6.7%, and 5.4% of imported batches of 1-day-old chicks, ducklings, and turkey poults, respectively. They were serotyped as O91, O125, O145, O78, O44, O36, O169, O124, O15, O26, and untyped in the imported chicks; O91, O119, O145, O15, O169, and untyped in the imported ducklings; and O78, O28, O29, O168, O125, O158, and O115 in the imported turkey poults. The
isolates were investigated for antibiotic resistance against 16 antibiotics using the disk diffusion method and were found resistant to cefotaxime (60.5%), nalidixic acid (44.7%), tetracycline (44.7%), and trimethoprim-sulfamethoxazole (42.1%). The distribution of extended-spectrum β-lactamase (ESBL) and
β-lactamase genes was
(52.6%),
(28.9%),
(39.5%),
(13.1%), and
(28.9%).
Imported 1-day-old poultry flocks may be a potential source for the dissemination of antibiotic-resistant
and the ESBL genes in poultry production.