[The prevalence of Actinobaculum suis in boars of breeding herds in the Omsk region (Russian Federation) by indirect immunofluorescence technique]. / Untersuchung zur Verbreitung von Actinobaculum suis unter den Ebern in den Schweinezuchtbetrieben des Gebiets Omsk (Russische Föderation) unter Verwendung der indirekten Immunofluoreszenz-Technik.

Actinobaculum suis (Corynebacterium suis, Eubacterium suis, Actinomyces suis) was detected in the preputial diverticulum of 64,8% of 162 boars investigated in 8 districts of the region Omsk (Russian Federation) by indirect immunofluorescent technique. Until yet no informations were available about the prevalence of Actinobaculum (A.) suis in swine herds of the Russian Federation. The study shows that A. suis, as a main aetiological factor of cystitis and pyelonephritis in sows, is widely spread among the boars of the region Omsk. Prevalence of A. suis was not influenced by housing conditions, age or breed of investigated boars. Indirect immunofluorescent technique for detection of A. suis provides a good method for screening investigations with high numbers of samples.