До природи параалергічних реакцій на туберкулін  у корів в умовах молочнотоварних ферм

Animal mycobacteriosis in most countries is a field of close attention for veterinary medicine scientists. Unfortunately, mycobacteriosis of productive animals is not given due attention in Ukraine, even though every year, the number of farms where animals are found that give para allergic reactions to tuberculin is constantly increasing. This, on the one hand, complicates the diagnosis of animal tuberculosis and, on the other hand, does not answer the question of the nature of these para allergic reactions. At the same time, in dairy cattle breeding, the problem of para allergic reactions during the diagnosis of tuberculosis causes significant economic losses due to the forced slaughter of young animals and highly productive cows. Given the facts of the detection in people with mycobacteriosis of several types of non-tuberculous mycobacteria, which are the cause of sensitization of the body of cows, the problem of prevention of animal mycobacteriosis is gaining medical and social significance. All of the above became the basis for establishing the reasons for constantly detecting tuberculin-reactive cows on one of the dairy farms in the Volyn region that are always safe from tuberculosis.