Djønne B K
Acta Vet Scand. 1985;26(2):145-52. doi: 10.1186/BF03546546.
Three hundred and fifteen E. coli strains isolated from piglets dead due to neonatal E. coli diarrhea or traumatic lesions, were examined for presence of enterotoxin production, K-antigens 88 and 99, antibiotic resistance and colicin-production. Almost 100 % of the E. coli strains positive on enterotoxin production produced colicin, while approx. 17 % of the non-enterotoxigenic strains did so. Ninety-nine % of the E. coli strains harbouring K-antigens were found to produce colicin, while approx. 23 % of the strains without detectable K-antigens did so. In strains where neither K-antigens nor enterotoxin production was found, resistance against tetracycline, neomycin and ampicillin, and sensitivity against streptomycin, was more commonly found among colicin-producing strains, than among strains without colicin production.
从因新生仔猪大肠杆菌腹泻或外伤致死的仔猪中分离出315株大肠杆菌,检测其肠毒素产生情况、K抗原88和99、抗生素耐药性及大肠杆菌素产生情况。几乎100%产生肠毒素的大肠杆菌菌株产生了大肠杆菌素,而约17%的非产肠毒素菌株也产生了大肠杆菌素。99%携带K抗原的大肠杆菌菌株被发现产生大肠杆菌素,而约23%未检测到K抗原的菌株也产生了大肠杆菌素。在既未发现K抗原也未发现肠毒素产生的菌株中,产生大肠杆菌素的菌株比未产生大肠杆菌素的菌株更常见对四环素、新霉素和氨苄青霉素耐药,而对链霉素敏感。