Pashchenko A. Trace elements and lipids of bee tissues and products at feeding Ca and Ni citrates and soybean flour

The dissertation is devoted to the study of the influence of Co and Ni citrates and soybean flour on the content of individual mineral elements and lipids in the organism tissues and products of honey bees, as well as the reproductive function of the bee queens in spring and summer-autumn periods; to finding out the stimulating effect of Co and Ni citrates on the viability of honey bees, seasonal characteristics of lipid and trace elements metabolism in the tissues of their organism and the content of these substances in products. The scheme of adding Co and Ni citrates obtained to the sugar syrup as components of honey bees feeding has been determined and tested. The stimulating complex influence of these compounds on the lipid metabolism in the organism tissues, the content of these elements in the product and the intensity of egg laying by the bee queens was proved. Application of complex and separate feeding with Co and Ni citrates with soybean flour and without it in the conditions of entomological gardens was characterized by differences in the content of individual trace elements, common lipids, their classes in the tissues of the bees’ organism. Feeding bees with Co (2 mg) and Ni (1 mg) citrates separately led to an increase in the content of Fe, Co, phospholipids, mono- and diacylglycerols in the tissues of bees against the background of Cu, Zn, triacylglycerols and free cholesterol decrease. Complex bee feeding with soy flour and Co (2 mg) and Ni (1 mg) citrates was characterized by a lower content of Fe, Cu, triacylglycerols in tissues of bees against the background of increasing the content of Co and Ni, phospholipids, mono- and diacylglycerols and esterified cholesterol in tissues of bees’ organism.