Abstract
Four swine 7 months old died suddenly. Autopsy on one of them revealed bubbles on the liver and sponge-like appearance of the cut surface of this organ. Bacteriologically, 104-108 organisms of Clostridium novyi type A were isolated from all the organs examined.
To make a rapid diagnosis, gas chromatography was carried out to find propionic acid as a major peak, acetic acid and butyric acid. When labelled antiserum to C. novyi was used, specific fluorescence was detected from frozen main organs and blood.