Аннотация
The article reflects the results of testing various diagnostic tests (ST, RA, CFT, BRT, IHA and ELISA) in the diagnosis of brucellosis in cattle, where animals are subjected to serological tests without the use of a vaccine. Antibodies against brucellosis were detected in diagnostic titer in ST in 100% and in ELISA in 96% of cases. The difference between the rates of these reactions was statistically insignificant (P> 0.1). ICA is significantly inferior to these two tests. This difference turned out to be significant, that is, significant (P <0.01). The lowest rates are set for RA, RBT and CFT. For the diagnosis of brucellosis, of all the tests tested, ST and ELISA turned out to be the most sensitive, and of these two tests, the most accessible for practice is ST.