STRAIN SUITABLE FOR PREPARING LIVE ORAL ESCHERICHIA COLI VACCINE FOR PREVENTING POSTWEANING DIARRHOEA OF PIGS, AND METHOD FOR PRODUCING THAT STRAIN

摘要

the object of the invention is a live, oral vakcinaku00e9szu00edtu00e9su00e9re escherichia coli strain suitable for the election hasmenu00e9su00e9nekmegelu0151zu00e9su00e9re pigs, and the strain suitable for the production of process.the talu00e1lmu00e1nyszerinti tribe, that's the point, that the free u00e9seredetileg enterotoxin escherichia coli wild-type strain, at the same time, two adhu00e9ziu00f3sfimbriu00e1t (f4ac and produces f18ac)according to the invention, while the essence of the original elju00e1ru00e1snakaz to enterotoxinok and capable of f18ac fimbriu00e1ktermelu00e9su00e9re wildenterotoxikus pathogenic escherichia coli tu00f6rzsenterotoxin producing ability of piglets, to facilitate the choice of vu00e9konybelu00e9nekfalu00e1hoz tapadu00e1su00e1t f18ac - fimbria - producing genetic ku00e9pessu00e9gmegtartu00e1su00e1valon the break, and then a further mu00f3dosu00edtotttu00f6rzset surface adhesion, production of isku00e9pessu00e9 (f4ac fimbrial adhesin) do. a