[Bovine leukosis virus infection in blood producer oxes]
1999
Rusinovich, A.A. (Belarus Research Inst.of Experimental Veterinary Medicine, Minsk (Belarus))
Leukosis and other haemoblasoses are recorded in most mammalian species including man. Up to that time there are sufficiently reports about leukosis infection in dogs, cats, rabbits, mice and other species of domestic and wild animals and in poultry too. Development and manifestation of disease in blood producer oxes of biofactories are of particular interest and substantial novelty so far as analogs in the literature are absent. During serological examination of 704 oxes of biofactories antibody to bovine leukosis virus (BLV) was detected in 92% of animals. The detection of nonspecific precipitation lines in 15% producer oxes was a distinctive peculiarity of many hundred thousands studies conducted in common commodity economies. The second precipitation line to polypeptide antigen 24p was recorded in 4% serologically positive animals with hematological manifestation of the disease. Pathological and anatomical changes typical for leukosis were not found in 8 animals slaughtered for the purpose of diagnostics (on the ground of immunological and hematological evidences). The analysis of conclusions of veterinary-sanitary experts for years 1988-1991 did not reveal such changes in no one of oxes slaughtered on meat factories
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