[Pathologic changes in the organs of sheep serologically positive for Maedi-Visna virus antibodies].
In the present paper the results are presented of pathomorphological examination of 38 sacrificed sheep with positive reactions to the Maedi-Visna disease. Lungs, mammary gland, joints and other organs with macroscopical lesions were subjected to histopathological examination. The CNS was examined by the method of a complete series of frontal sections. Diagnostics of M-V typical lesions revealed them in 87% of the examined sheep, in 55.2% of examined lungs, in 58.6% of examined mammary glands, 27.3% examined CNS and 4.7% examined joints. In 57.1% of the cases, M-V lesions of the lungs were complicated by simultaneous incidence of pulmonary adenomatosis, chronic purulent or granulomatous pneumonia. No clinical symptoms were found in a majority of sheep, while the M-V typical lesions of organs were not determined in about fifty percent of sheep. The observed morphological lesions corresponded to initial or medium progressive affection. A proof of precipitation antibodies and identification of typical M-V lesions in the organs are needful for determination of M-V diagnosis. Incidence and character of lesions indicate the need of persistent implementation of virus-eradication treatments on sheep farms.
Halouzka
R
R
Vysoká skola veterinární a farmaceutická, Brno.
Celer
V
V
D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis*; D005260:Female; D008297:Male; D011021:Pneumonia, Progressive Interstitial, of Sheep / Q000276:immunology / Q000473:pathology*; D012756:Sheep; D014790:Visna-maedi virus / Q000276:immunology*
D000914:Antibodies, Viral
Výskyt patologických zmĕn v orgánech ovcí sérologicky pozitivních na protilátky proti viru Maedi-Visna.