Biochemical profile of the body of chickens of different directions of productivity

Scientific and practical interest is the study of indicators of metabolic processes in various genotypes birds, which is important in the clinical and physiological assessment of the birds health. Blood from cockerels of the egg direction of productivity (Russian White breed, n=19), meat and egg direction of productivity (crossbreeds of the Russian White and Cornish breeds, n=12) and broilers (Cross Ross-308, n=9) was studied at the age of 63 days. Blood bio-chemical parameters and antioxidant protection indicators were determined, correlation coef-ficients between the studied parameters were calculated. The main differences between the groups were noted in the parameters of carbohydrate-water-lipid and mineral metabolism. The maximum value of glucose concentration (15.55 mM/l, with a difference between groups pЈ0.001) was observed in the body of the meat and egg chickens, the minimum (11.95 mM/l with a difference with the group of meat and egg chickens рЈ0.001) - in broilers. In broilers blood the maximum concentration of triglycerides (0.89 mM/l) and the minimum concentration of cholesterol (2.88 mM/l) were registered in comparison with analogues with a significant dif-ference (pЈ0.01 and pЈ0.001), which indicates more intensive processes of lipid metabolism in the body associated with the formation and deposition of fat., The antioxidant protection indi-cators in broilers were less pronounced, which is manifested in the highest level of formation of lipid peroxidation products in the blood in the form of TBA-AP (4.27 mM/l at a difference of pЈ0.001 with other groups), a decrease in the concentration of ceruloplasmin (37.78 mg/l with a difference pЈ0.05 with other groups). The conducted correlation analysis made it possible to establish various and unequal trends in the relationship between biochemical parameters and AOP indicators in various directions of productivity birds. The maximum number of detected correlations (weak and moderate) was observed in the blood of egg hens. In the blood of broil-ers, a smaller number of correlations of high and very high degree was revealed. Differences in the flow of metabolic processes in the body should be taken into account when assessing the physiological and biochemical status of the organism of birds of different directions of produc-tivity. The results obtained will serve to accumulate a database of biochemical parameters of poultry blood and develop reference intervals for healthy birds of various genotypes.