The role of clinical and biochemical parameters of cow blood in diseases of the distal extremities

Among the diseases causing significant economic damage to the farms of the agro-industrial complex, the most significant ones are the pathologies of the distal extremities of cattle. Often, diseases of the distal extremities are not given necessary attention, which affects a decrease in productivity by 30-40%. This is due to the fact that animals cannot fully move and there is a decrease in metabolism, leading to a drop in productive indicators [2]. In diseases of the lower extremities, animals experience discomfort, pain, it is difficult to detect estrus; there is a decrease in live weight. It leads to an increase in the economic costs of carrying out therapeutic and preventive measures and a decrease in profits. The aim of the work is to study the changes in clinical and biochemical parameters of the blood of cows of the black-mottled Holstein breed in diseases of the distal extremities. The clinical part of the research was carried out in the conditions of a dairy farm of the experimental station "Streletskaya" - a branch of the Federal State Budgetary Scientific Institution "Federal Scientific Center for Legumes and Cereals" of the Orel municipal district of the Orel region. As an object of the research, a set of clinically healthy animals and animals with pathologies of the distal extremities of black-and-white Holstein cattle were considered. The experimental groups formed according to the principle of analogues included 10 heads in each group. The first and second groups included animals with distal limb pathologies, the third (control) group included clinically healthy animals. The determination of clinical blood parameters was carried out on an Abacus analyzer; biochemical studies of blood serum were carried out on a biochemical photometer "StatFax 1904+R".