[Biochemical characteristics of Vibrio coli isolated from inflammatory pseudomembraneous swine dysentery]

The paper presents the basic morphological and biochemical characteristics of seven microaerophilic vibrio cultures isolated by the membrane filtration method from the colon mucous membrane of pigs diseased with dysentery. For growth, the cultivated strains needen oxygen reduction; in the dark field they showed a typical active movement producing catalase and oxidase, reducing nitrates to nitrites, and tolerating the presence of 1% and 3% sodium chloride concentrations in the growth medium. No culture grew in the presence of 1% glycine and 5% NaCl and no culture produced hydrogen monosulphide. All showed good growth in media with carbohydrates which, however, were not attacked. With respect to these characteristics and to literature data, the microbes were classified as Vibro coli, whose isolation had been reported by some authors in relation with dysentery in pigs (Roberts, 1956; Deas, 1960; Lussier, 1962).