[The relationship between the (NAD+)/(NAD-H) ratio and the adenylate system in the cytoplasm of loach oocytes and embryos].

The dependence was found between the phosphorylated state of the adenylic system (ATP)/(ADP) (HPO42-) and the ratio (NAD+)/(NAD-H) during the maturation of the loach (Misgurnus fossilis L.) oocytes which is accompanied by the cessation of gluconeogenesis and onset of gycogenolysis. The twofold decrease of the value of phosphorylated state of the adenylic system is correlated with the twofold decrease of the value of the ratio (NAD+)/(NAD-H).