Wystepowanie paleczek z rodzaju Yersinia u zwierzat hodowlanych, domowych, dzikow oraz ryb pochodzacych z wojewodztwa olsztynskiego

The objective of the study was to evaluate the presence of Yersinia in pigs, calves, minks, cats, wild boars and fish (carp, trout, whitefish) by means of two isolation techniques. The application of the fluid medium selectively multiplying ITC according to Wauters shortened the time of isolating Yersinia enterocolitica О : 3 and increased the frequency of its isolating in comparison with the cold culture. The samples from 465 animals were examined. 70 strains were isolated including Y. enterocolitica O : 3 — 22, Y. enterocolitica O : 9 — 1, Y. enterocolitica 1A biotype — 39, Y. frederiksenii — 5 and Y. intermedia — 5. Pigs and wild boars serve as a reservoir of Y. enterocolitica strains potentially pathogenic for humans.