STUDYING THE IMMUNOREACTIVITY OF BLV-INFECTED COWS BASED ON PCR-RFLP ANALYSIS OF THE ENV BLV GENE

УДК: 619:616.002.5-07.636.2.9 DOI: 10.31588/2413_4201_1883_3_259_313

Authors

  • Yakupov T.R. FSBEI HE "Kazan State Academy of Veterinary Medicine named after N.E. Bauman"
  • Usoltsev K.V. FSBSI "Federal Centre for Toxicological, Radiation and Biological Safety"
  • Shangaraev R.I. FSBSI "Federal Centre for Toxicological, Radiation and Biological Safety"
  • Zinnatov F.F. FSBEI HE "Kazan State Academy of Veterinary Medicine named after N.E. Bauman"
  • Maslennikov N.N. FSBEI HE "Kazan State Academy of Veterinary Medicine named after N.E. Bauman"

Keywords:

leukemia, antibodies, ELISA, PCR-RFLP analysis, VLCRS, mycobacteria

Abstract

The results of a study of blood serum using ELISA and PCR-RFLP analysis of the BLV env gene in order to study the characteristics of the immunoreactivity of cattle infected with the leukemia virus the article described. The ELISA results showed that 64.1 % of the studied blood serum samples from BLV-infected cows reacted positively to mycobacterial antigens. The results of a comparative study of data from PCR-RFLP analysis of DNA isolates and ELISA indicate that antibodies against genotype 4 antigens of VLCRS are more likely to exhibit cross-reactions with M.Avium antigens, and antibodies against genotype 7 are more likely to cross-react with M.Bovis antigens.

Author Biographies

Yakupov T.R., FSBEI HE "Kazan State Academy of Veterinary Medicine named after N.E. Bauman"

Doctor of Veterinary Sciences, Associate Professor

Usoltsev K.V., FSBSI "Federal Centre for Toxicological, Radiation and Biological Safety"

Candidate of Veterinary Sciences, Leading Researcher

Shangaraev R.I., FSBSI "Federal Centre for Toxicological, Radiation and Biological Safety"

Candidate of Veterinary Sciences, Researcher

Zinnatov F.F., FSBEI HE "Kazan State Academy of Veterinary Medicine named after N.E. Bauman"

Candidate of Biological Sciences, Associate Professor

Maslennikov N.N., FSBEI HE "Kazan State Academy of Veterinary Medicine named after N.E. Bauman"

Postgraduate student

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Published

2026-08-12