鷄由來 病原性 大腸菌에 관한 硏究 1. 大腸菌感染 病鷄로부터 分離한 大腸菌의 生化學的性狀 및 血淸型 調査

Studies on Pathogenic Escherichia coli Isolated from Chicken with Colibacillosis 1. Biochemical and Serological Investigations of Escherichia coli Isolated from Chicken with Colibacillosis

Four hundred and eighty eight strains of Escherichia coli isolated from chicken with pericarditis, perihepatitis, airsacculitis, salpingitis, yolk sac disease, arthritis, peritonitis or acute septicemia during 4 years from 1978 to 1981 were tested for their biochemical properties and 0 serogroups. Biochemical properties of 488 strains of E. coli tested were in accordance with classification standard of Edwards and Ewing. By using E. coli antisera of 24 different 0 groups, 224(61.9%) of the 362 strains tested were classified into 18 0 groups. The most prevalent 0 group found was 0 128 (22.7%), and followed by 0 1alb(7.2%), 0 124(5.8%), 0 83(3.9%), 0 2a2b(3.6%), 0 6(3.3%), and 0 26(3.0%); these strains typed for 7 0 groups comprised 81.8% of the typable strains and 49.5% of the total 362 strains.