A tyúkok myeloid leukosisának új formája: J-leukosis

Translated title of the contribution: New form of avian myeloid leukosis: J-leukosis

Csaba Drén, Mihály Dobos-Kovács, Éva Ivanics, Róbert Glávits, Ferenc Rátz, Guus Koch

Research output: Contribution to journalArticle


A new form of myeloid leukosis in two adult broiler breeder flocks is reported. Post mortem examination revealed neoplastic lesions in various internal organs, in the bone marrow, and occasionally, on the surface of various bones. In the affected organs multiple foci of proliferating myelocytes similar to those of normal myelocytes or less differentiated myeloblasts were seen. Occasionally in the very same bird other type of neoplastic lesions were found, like sarcomas, lymphoid leukosis and erythroblastosis. In the plasma and/or serum samples avian leucosis subgroup A and J specific antibodies were detected by virus neutralization and antibody ALV ELISA tests. Fewer samples were positive by ELISA compared to those of virus neutralization test. In tissue culture, exogenous avian leukosis viruses were isolated, which need to be further characterised. Taken together the pathological and serological findings, this is the first report on the occurrence of ALV-J subgroup associated diseases in Hungary.

Translated title of the contributionNew form of avian myeloid leukosis: J-leukosis
Original languageHungarian
Pages (from-to)154-160
Number of pages7
JournalMagyar Allatorvosok Lapja
Issue number3
Publication statusPublished - Dec 1 2000

ASJC Scopus subject areas

  • veterinary(all)

Fingerprint Dive into the research topics of 'New form of avian myeloid leukosis: J-leukosis'. Together they form a unique fingerprint.

  • Cite this

    Drén, C., Dobos-Kovács, M., Ivanics, É., Glávits, R., Rátz, F., & Koch, G. (2000). A tyúkok myeloid leukosisának új formája: J-leukosis. Magyar Allatorvosok Lapja, 122(3), 154-160.