Detection of opportunistic pathogenic microflora of wound surface swabs in diseases of the distal extremities of cows

Diseases of the distal extremities cause significant economic damage and have a negative impact on animal husbandry: the terms of using breeding animals are reduced, and their productivity in general is reduced as well. In some disadvantaged farms, hoof diseases in animals reach 20-30%, and in some cases 50-60% of the total number of the livestock. The purpose of the work is to identify pathogenic microflora and its species composition from the wound surface in diseases of the distal extremities in cows. The clinical part of the research was carried out in the conditions of a commercial dairy farm of the Streletskaya experimental station, a branch of the Federal State Budgetary Scientific Institution “Federal Scientific Center for Legumes and Cereals”. The objects of the study were dairy cows of black-motley Holsteinized breed with lesions of the distal extremities. For the study, two groups of animals were formed with 10 animals in each group. The experimental groups were formed according to the principle of analogues, the selected animals were aligned according to such indicators as: age, health status, body weight, fatness. The scientific research was carried out according to the requirements for a medical biological experiment on the selection of analogues, control, compliance with equal conditions for feeding and keeping experimental animals during the work and the study of the results. The microbiological study of swabs from the wound surface of cows with lesions of the distal extremities was carried out using thermostating and inoculation of microorganisms on meat-peptone agar (MPA), meat-peptone broth (MPB), Endo medium, Chapek agar. The results of the conducted studies allow to judge about the complexity of the etiopathogenesis of diseases of the distal extremities. At the same time, the leading role in the development of pathological processes belongs to the opportunistic pathogenic microflora of a certain biogeocenosis against the background of a decrease of the animal organism resistance. In this regard, the approach to the treatment of diseases of the distal extremities in highly productive cows should be comprehensive, taking into account the results of the microbiological studies.