Epizootology and Pathogenesis of Avian Mycobacteriosis of Pheasant (Phasianus-Colchicus) and Partridge (Perdix-Perdix)

Veterinarni Medicina 38, 1993, 687-701

Various species of free living birds play an important role in the epidemiological of avian mycobacteriosis as a source of mycobacteria. Among them of certain importance are feathered game, in this country, particularly pheasant (Phasianus colchicus) and partridge (Perdix perdix). In these species, closer contact with domestic animals can be expected. The aim of this work was to find their susceptibility to M. avium, origin and location of tuberculosis process and the occurrence of mycobacteria in organs and tissues. Moreover, in pheasants the possibility of transfer of M. avium through infected individuals to pigs and poultry. After the intramuscular infection of M. avium suspension, the local lesions developed in the point of application in pheasants after 12 days. Microscopic changes in liver and in spleen in pheasants and partridges developed after 21 days. Milliary TBC in liver and spleen and the histological changes in the intestinal wall developed after 35 days. The mycobacteria were isolated sporadic after 12 days and after 21 days they were isolated from most organs and tissues and from the intestinal contents. Peroral infection by food

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