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KMID : 0359319900300040421
Korean Journal of Veterinary Research
1990 Volume.30 No. 4 p.421 ~ p.425
Biochemical properties and cultural characteristics of Escherichia coli isolated from chickens



Abstract
The present study was conducted to investigate the biochemical and cultural characteristics of Escherichia coli isolates from clinically affected chickens during the period from May 1988 to June 1989. A total of 82 E coli cultures were isolated from lesions of 75 chickens with colisepticemia.
Biochemical properties of E coli isolates tested were in accordance with the general classification standard; all the isolates showed positive reaction in Catalase, Indol, and Methyl-Red tests, but negative reaction in Oxidase, Urease, Yoges-Proskauer, Citrate utility, H₂S, Phenylalanine diaminase, and malonate tests. And the carbohydrate fermentation rates of them were shown to be variable.
Of the 82 isolates, 48(58.5%) cultures produced colicin to inhibit the indicator strain of E coli.
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학술진흥재단(KCI)