Investigation of morphological and biochemical blood composition of cows of different linear affiliation

Currently, hematological and biochemical indicators play an important role in animal science, which determine the theoretical basis of scientific research and the full-fledged practice-oriented activity of specialists. Morphological and biochemical properties of blood were formed as a result of a fairly long biological evolution and are interrelated with the dairy productivity of cows. A study showed that the morphological and biochemical blood composition of cows of different lines with a proportion of blood was above 75% in the Holstein breed. The aim of the work was to investigate the influence of three genetic lines of breeding bulls on the morphological and biochemical blood composition of cows of the Ural type. The research was carried out in breeding enterprises of the Sverdlovsk region on the stock of Holstein cows of black and motley breed. Biochemical parameters were examined on the AU 680 biochemical analyzer, morphological parameters were examined on the Sysmex-1000i hematological analyzer. Statistical data processing was carried out in the program «Microsoft Office Exel 2010». The analysis of hematological studies indicates is the best indicators of erythrocytes, hemoglobin, hematocrit in the blood of cows of the linear affiliation Vis Back Ideal 1013415. In terms of the content of segmented neutrophils and leukocytes, animals of the Montvik Chieftain line had an advantage, and cows of the Vis Back Ideal line had an advantage in the number of lymphocytes. The superiority in the amount of total protein and albumins is characteristic of cows of the Montvik Chieftain line. The most intensive lipid metabolism was detected in animals of the Vis Back Ideal line. The conducted studies have shown that the linear affiliation is associated with the morphological and biochemical parameters of the blood of cows, the test results confirm the optimal flow of physiological processes of all experimental groups of animals.