[Pseudomonas aeruginosa III. Identification of strains isolated from blue foxes (Alopex lagopus) in a Danish fur farm (author's transl)].

The technique of determining bacterial strains as Ps. aeruginosa is described. It was attempted to base this technique upon well-defined commercial preparations, so as to afford a possibility for comparative studies. 261 strains presumed to be Ps. aeruginosa were isolated from sick and healthy blue foxes and their watering troughs. 244 of the strains could be subjected to detailed bacteriological study (Table I a, b, c, fig. 1) in addition to the demonstration of pigment (pyocyanin and fluorescin). All 244 proved to be Ps. aeruginosa. Among them 10 non-pigment-producing strains were characterized as "atypical" Ps. aeruginosa strains. The determination of the genus was supported by the results of the sensitivity tests (Table II).