| fatty acid composition of yersinia ruckeri isolates from aquaculture ponds in northwestern germany. | enteric redmouth disease (erm), caused by yersinia (y.) ruckeri is one of the most important diseases in salmonid aquaculture. outbreaks of erm were controlled by vaccines directed against motile strains of the bacterium, until recently nonmotile vaccine-resistant strains evolved and caused severe outbreaks. non-motile isolates were found widespread in aquaculture populations in north-western germany. in the present study, 82 y. ruckeri isolates were isolated from trout hatcheries in north rhine ... | 2014 | 24693657 |