The problem of leukemia in cattle and ways to solve it

Abstract

The purpose of the publication of this article was the existing problem of the spread and improvement of cattle from leukemia in the Smolensk region. The article presents the data of the analysis of epizootic situation on bovine leukemia in the Smolensk region from 2000 to 2018. The analysis of the epizootic situation indicates that in 2000 the infection of cattle with leukemia was the highest, the level of virus transmission reached 9.7 %. And in 2002 there was a high rate of detection of hematologically sick animals, it was 0.86 %. Over the years of long-term observations of the epizootic process, it is noted that at present the level of morbidity and infection of animals with bovine leukemia in the Smolensk region has significantly decreased. The measures taken to prevent and combat leukemia in cattle in the Smolensk region for many years, allowed to change the epizootic situation and improve the situation for the disease. In recent years, the region has increased the number of diagnostic studies on serology, increased the number of studies on ELISA. According to the results of these studies in the region decreased rates of infection of animals, which over the past decade has decreased by more than 9 times. Currently, the epizootic situation has improved markedly, but there are still problems and the area is not completely free from leukemia in cattle. [11].