Epizootology and pathogenesis of avian mycobacteriosis in the laughing gull (Larus ridibundus)
1994
Hejlicek, K. | Treml, F. (Vysoka Skola Veterinarni a Farmaceuticka, Brno (Czech Republic))
The occurrence of avian mycobacteriosis and sensitivity to M. avium were investigated in the laughing gull. The patho-morphological and culture examination of 35 individuals of the laughing gull caught at four different localities of the Czech Republic did not reveal any tuberculous lesions nor did it enable to isolate mycobacteria. After experimental intramuscular infection by suspension of M. avium macroscopic tuberculous lesions were found at the spot of puncture in 35 days, in liver and spleen in 70 days since the beginning of infection. In the simultaneously infected domestic fowl the lesions were determined at the spot of puncture, in spleen and liver in 35 days. Tuberculous lesions were found in liver, spleen and intestines of the laughing gull in 118 days after peroral infection by feed contaminated with the liver of tuberculous fowl. This finding was identical in spleen of the domestic fowl only in 118 days. Intestinal tuberculosis was determined in the laughing gull in 118 days after infection. The results of experimental infections show that the sensitivity of the laughing gull to M. avium is the same as in the domestic fowl.
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