STRUCTURAL AND FUNCTIONAL PARAMETERS OF BLOOD IN CATTLE AS AN INTEGRAL INDICATOR OF ECOLOGICAL CONDITIONS IN THE TERRITORIES SUBJECT TO GEOCHEMICAL TRANSFORMATION

Abstract

The study of structural and functional parameters of the cattle blood system was carried out in farms located in Sysert, Pervouralsk and Beloyarsky districts of the Sverdlovsk region in the cows of black-motley breed of the Ural type 2-3-th lactation in the 1 period of pregnancy. Hematological parameters were determined in the Abacus Junior Vet. blood analyzer. Leucocyte count were counted in blood smears stained with Romanovsky - Giemsa method. Phagocytosis level T and B cells was determined by standard methods. According to the monitoring results for 2012 - 2014 years was observed following changing. On the areas chronically exposed man-made factors in haematological and immunological parameters of blood of cattle was recorded low levels of red blood cells in non- pregnant cows in Pervouralsk area (4,3-5,47 million / ml ); high content of eosinophils in cows in Pervouralsk district and Beloyarski district (8,47 ± 4,19% and 7,06 ± 4,17%). In Sysert district the level of eosinophils in the blood of non-pregnant cows was 4,70 ± 3,16%. The T / B-coefficient of non- pregnant cows from Beloyarsky district was 0,59-0,72 units. According to the analysis, it was found that in chronic anthropogenic impact conditions in animals during the adaptation process formed unique mechanisms of protective reactions, aimed at preserving of the functional hemostasis.