Кортико-вегетативні механізми регуляції обміну мангану в крові корів

Abstract

Abstract. The mechanisms of cortico-vegetative regulation of macro- and microelements in the body of productive cows in the literature for the last few years have not been sufficiently covered and need more detailed and in-depth study. The aim of this work was to establish cortico-vegetative mechanisms of regulation of Manganese metabolism in different blood fractions of cows. The experiments were carried out on Ukrainian black-and-white breed cows of the 2-3 lactation. In the summer in weak type of HNA cows, the metal content in serum, whole blood and its cells was lower by 12.4 % ( Р < 0.01), 13.3 % ( Р < 0.01) and 17.5 % ( Р < 0,001 ) than in SBM type cows. In winter, in serum, whole blood and blood cells of cows of weak type of HNA, the content of manganese was lower by 12.1 % ( Р < 0.01), 13.5 % ( Р < 0.001) and 14.4 % ( Р < 0.001), respectively compared to cows with SB I type of HNA. The ratio of manganese content in blood cells to its content in serum (Mn cells / Mn sera ) in cows with different types of HNA was not significantly different and ranged from 11.9 to 12.9 r. u. The time of year significantly affected only the content of manganese in serum and whole blood of cows with SBM type of HNA. The strength of nerve processes in summer was directly related to manganese content in whole blood (r = 0.50; Р < 0.05) and blood cells (r = 0.59; Р < 0.01). Regression analysis revealed that no reliable dependence of manganese content in all blood fractions of cows on the equilibrium and mobility of nerve processes in both warm and cold seasons. The ratio of manganese content in blood cells to its content in cows’ serum (Mn cells / Mn serum ) did not depend significantly on the tone of the autonomic nervous system but on the seasons of year, and was 11.0–13.0 r. u. Studies have shown that cortico-vegetative mechanisms regulate the metabolism of manganese in the blood of cows. Keywords: higher nervous activity, macronutrients, types of higher nervous activity