[The organ specificity of the expression of a number of genetic-biochemical systems in sheep].

The analysis of isozyme spectrum of lactate (LDH), malate (ME), isocytrate (IDH) dehydrogenases, and esterases (EST) in sheep lung, kidney, heart, liver, spleen, skeletal muscles, skin, and erythrocytes was carried out. It was revealed, that the expression of ME and IDH loci was related with histogenesis of investigated organs. Activity of IDH was maximal and of ME was minimal in epithelial organs. The minimal activity of IDH and maximal one of ME were revealed in organs of mesenchymal histogenesis. New data suggesting LDH regulation activity system in skin independent from LDH system in erythrocytes were obtained. Spectrum of esterases in skin proved to be associated with the group differences of wool production characters.