Martynyuk U. Species peculiarities of antioxidant status and their correction method in early postembriogenesis.

The dissertation is devoted to study of species peculiarities of lipid peroxidation and state of some elements of enzyme and non-enzyme antioxidant defense system in Japanese quails, geese and turkeys in connection with physiological state and age and proposition of antioxidant status correction method during early embryogenesis. Object of experiment.-Lipid peroxidation intensity and antioxidant defense system state in blood and tissues of japanese quails, geese and turkeys. Subject of experiment. Indices of lipid peroxidation, antioxidant defense system enzymes activity, vitamins A, E and carotenoids content, live weight growing. Methods of experiment - Biochemical - for estimation of lipid peroxidation products content and antioxidant defense system indices; morphometric - for growing control, statistic -for determination of obtained data variance Scientific novelty of obtained results. - At first took place comparative investigations of lipid peroxidation and antooxidative defense system state in japanese quails, geese and turkeys in connection with phisiological state and age. It was shown, that antioxidant defense system formation in avian organism during ontogenesis had species and organ-tissues specify , and change of lipid peroxidation intensity was correlated with antioxidant defense system formation in tissues and change of antioxidant defense system enzymes activities and bioantioxidant content, connected with physiological state of organism. Early postembryogenesis of goslings and turkey poults is characterized by decreasing level of natural bioantioxidants (vitamins E, A and carotenoids) in avian organism and lipid peroxidation processes stimulation. Increasing level of vitamins E and C in composition of standard diet for goslings and turkey poults was correlated with lipid peroxidation intensity decrease and antioxidant defense system functional activity enhancement.' Sphere of use - physiology, biochemistry, poultry science, feeding