Immunotropic drugs and products for udder hygiene in realizing the potential of dairy productivity and preventing diseases of the mammary gland of cows

The purpose of this work was the use of immunotropic drugs Prevention-NAM and Prevention-T-A, developed by scientists of the Chuvash State Agrarian University (Semenov V.G. et al.), and disinfectants for the prevention of udder diseases and the realization of the potential of dairy productivity of cows. The work was performed at the Department of Biotechnology and Processing of agricultural products of the Chuvash State Agrarian University, the experimental part was carried out in the conditions of the dairy farm of LLC Krasnoe Sormovo of the Krasnoarmeysky Municipal District of the Chuvash Republic. The objects of research were three groups of cows (control, 1st and 2nd experimental) of Holstein black-and-white breed, 20 heads each. In order to improve the reproductive qualities and realize the productive potential of cows, animals of the 1st experimental group were intramuscularly injected with Prevention-N-A-M at a dose of 10 ml three times 45-40, 25-20 and 15-10 days before calving, the 2nd experimental group - Prevention-N–A at the specified dose and time, the control group – Biologics were not administered. In order to prevent udder diseases, disinfectants were applied to cows after calving before milking Italmas VD DEZ PEROXI and after milking Italmas VP Gold from PK Izhsintez- Khimprom LLC. During the experiment, the analysis of the clinical and physiological state, gynecological condition, reproductive qualities, level of milk productivity, milk quality and incidence of cows with mastitis on 2-3, 30-35, 60-65 and 90-95 days after calving was carried out according to modern methods generally accepted in veterinary medicine.