Postoy R. The Influence of Type of Higher Nervous Activity on Carbohydrate Utilization by Mammary Gland in Cows during Lactopoesis

The Thesis is devoted to the studying of the intensity of carbohydrate utilization processes by the mammary gland in cows depending on the type of higher nervous activity during lactopoesis. The results proved that processes of milk secretion are more intensive in cows with strong nerve processes. Established that glucose transport from the arterial blood to the mammary gland tissues is more active in cows of strong balance and mobile type than in cows of weak type of higher nervous activity. Found the relationship between arteriovenous difference of glucose by the mammary gland and the strength and balance of the nerve processes. The higher level of lactose in the milk is found in cows of strong balance and mobile type on the background of higher milk production compared with cows of weak type of higher nervous activity. Established, that the blood of strong types of higher nervous activity cows had lower levels of intermediate products of carbohydrate metabolism - lactic and pyruvic acids. The level of lactate and pyruvate absorption from the arterial blood by the mammary gland tissues in cows of strong types of higher nervous activity is high enough in percentage ratio compared to cows of weak type. Shown, that enzyme activity of the carbohydrate metabolism (lactate dehydrogenase, malate dehydrogenase, succinate dehydrogenase, ?-amylase, Na+, K+- adenosine triphosphatase) in representatives of strong types was higher than in animals of weak type higher nervous activity. Established, that Nano Carboxylate of mineral elements has corrective influence on the carbohydrate metabolism in lactating cows.