BIOLOGICAL FEATURES OF COWS OF DIFFERENT GENOTYPES OF UKRAINIAN BLACK PIED DAIRY BREED IN WESTERN UKRAINE
There are presented results of the research of morphological and biochemical parameters of blood,indicators of natural resistance of cows of different genotypes Ukrainian Black Pied dairy breed in different lactation periods.It was established that during lactation these parameters have changed. A significant difference between cows of different genotypes was observed by the number of leukocytes in the blood and the total protein content, while difference between the number of red blood cells, hemoglobin content, glucose, and the erythrocyte sedimentation rate were insignificant. The absence of significant difference in natural resistance in the investigated genotypes of cows indicates a good adaptation of these animals to the conditions of the Western region of Ukraine.