[Lipid peroxidation at early stages of loach development]

The activity of the nonenzymatic lipid peroxidation system in the lipids of eggs and embryos of Misgurnus fossilis during the first 6 hours of development is low, on the average, still being somewhat changed. Based on the thermochemoluminescent data, one may assume that the low activity of this system results from the presence of lipophilic antioxidants. Maximum induction periods of thermochemoluminescence have been found for mitochondrial fraction lipid, the minimum one--for microsomal lipid fraction. During 6 hours of the development the induction periods of thermochemoiuminescence of mitochondrial, lysosomal and of microsomal lipid fractions undergo some changes. During the development changes in the effective activation energy of peroxidation of embryo yolk and blastoderm lipids are observed as well.