L.N. Gordienko, E.V. Kulikova, G.M. Gaydutskaya, N.B. Elantseva
All-Russian Research Institute of brucellosis and tuberculosis of animals, Lermontov str., 93, Omsk, 644001, Russia
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Summary. The brucellosis of reindeer has specifics associated with numerous factors. The manifestation of epizooty is affected by the existence of natural foci with the source of infection in wild reindeer herds, constant migration of populations, density of reindeer herd, crossing of routes and mixing of herds, the specifics of the industry, the immune status of animals. The properties of brucella, circulating in a pesthole, have an important role in manifestation of infection and epizootic processes. The special feature of the pathogenic agent of reindeer brucellosis is that its main hosts are reindeer. The circulation of the pathogen has a geographic association with the Arctic territories. Brucella of 4-th biotype B. suis has the ability to form separate epizootic nidus with high degree of contagion among reindeer. The work was carried out in reindeer farms in Yamalo-Nenets Autonomous Okrug. The serological, bacteriological and biochemical research and experiments on laboratory animals were carried out in ecology laboratory of All-Russia Research Institute of Brucellosis and Tuberculosis of Animals by standard methods. Animals-carriers of brucellosis with the persistence of pathogen in velvet antlers were found in nidi of reindeer brucellosis with chronicity and latent forms of infection. The quantity of infected animals exceeded 3.4 times the animals, which positively reacted in serological examination. On the complex of the main differential phenotypic signs the cultures, isolated from velvet antlers of reindeer, were identical to the typical S-forms of reference strain of Brucella. The active growth of the studied cultures on nutrient mediums with aniline dyes and penicillin indicated its resistance to the influence of environmental factors. The cultures of brucella, isolated from velvet antlers of reindeer, had M-epitopes in the antigen composition and significantly differed from the reference strain B.abortus 544 in the virulent properties, that indicates its high pathogenicity and epizootic danger.
Keywords: reindeer, velvet antlers, brucellosis, properties of Brucella, epizootic process, phenotypic and biological properties.
Author Details: L.N. Gordienko, Cand. Sc. (Vet.), Director (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); E.V. Kulikova, Researcher; G.M. Gaydutskaya, Junior Researcher; N.B. Elantseva, Junior Researcher.
For citation: Gordienko L.N., Kulikova E.V., Gaydutskaya G.M., Elantseva N.B. Phenotypic and biological properties of Brucella isolated from velvet antlers of reindeer. Dostizheniya nauki i tekhniki APK. 2015. T.29. №4. pp. 47-50 (In Russ)