GEESE FATTY ACID COMPOSITION OF BRAIN AND HEART LIPIDS IN HYPO-AND HYPEROXIA

We selected the eggs of Italian breed geese with an average mass of 134,2 ± 8,4 g for theincubation. The study of antioxidant defense system in embryogenesis was carried out inphysiologically reasonable time frame: 15 days - the closure of the allantois and the availabilityof developed liver, 22 days - the transition from the protein meal type to the yolk, 28 days - thetransfer of embryos to the output. In the postnatal period, the investigations were limited to 14-day-old (early postnatal ontogenesis). The study involved the tissues of the brain and heart. Weestablished the specificity of the changes of fatty acid composition of lipids in the brain andheart of geese in a hypo-and hyperoxia during the transition from embryonic to the postnatalperiod. We also proved that the mobilization of the antioxidant defense system in the braintissue occurs by reducing the unsaturated fatty acids in the lipids by 35.2%. In the myocardiumthe reducing of unsaturation was significantly lower (10.2%).