Search

The blood analysis of the great tit in a protected area of National Nature Park “Homilshanski Forests” (Kharkiv Region, Ukraine) was performed in the age-related dynamics of its postembryogenesis. Using our own method, developed for collecting venous blood from the eye sinus, the identity of leukogram percentages between the literary data and our obtained results was established thereby providing evidence in favour of the application of our development. Erythrocytes were studied with the help of the micronucleus test, which results reliably testify that the studied birds were not exposed to any chemical or physical contamination. No parasitic infections were found in blood smears. Further improvement of the blood taking method is planned in order to collect samples for biochemical and genetic analyses

We studied the effect of immunogens of the leukemia virus in cattle on the cytogenetic parameters of bone marrow in the dynamics of immunogenesis. We found that each drug has its own specific effect, which is due to the structural differences of the leukemia virus in cattle. The method of cytogenetic studies of bone marrow cells should be used to assess the safety and immunogenic properties of retroviral origin drugs