Journal
JOURNAL OF APPLIED POULTRY RESEARCH
Volume 15, Issue 3, Pages 442-446Publisher
ELSEVIER
DOI: 10.1093/japr/15.3.442
Keywords
Escherichia coli; drug resistance; Japanese quail
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Escherichia coli isolates were cultured from diseased Japanese quail and their environment. Of 31 E. coli isolates, 11 were cultured from heart blood of dead Japanese quail and 20 were from dead-in-shell embryos, fluff samples, and footbath and drinking water samples. All E. coli isolates were moderately positive on the Congo red binder test and 14 out of 31 isolates produced hemolysis on sheep blood agar. Twenty-seven isolates were grouped under serogroups O-4, O-9, O-38, O-42, and O-88, whereas 4 isolates could not be typed. Of the E. coli isolates cultured from Japanese quail infected with colibacillosis, 54.5% belonged to serogroup O-9 and the same serotype was predominant in the hatchery environment. All the E. coli isolates showed high resistance to multiple drugs with 100% resistance observed against ampicillin/cloxacillin, chloramphenicol, tetracycline, and cotrimoxazole. The highest sensitivity was observed against nitrofurantoin. This study shows that hatchery hygiene should be improved to control colibacillosis and reduce production losses. At the same time, indiscriminate use of antibiotics should be avoided as it increases the risk of development of drug-resistant strains of bacteria.
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