Analysis of the results of laboratory diagnosis of infectious animal diseases

Abstract

To fulfill the doctrine of food security in the Russian Federation, the assigned tasks are carried out by implementing a plan of preventive anti-epizootic measures (diagnosis, immunization, disinfection) which allows obtaining high-quality and safe livestock products. This paper analyses the results of studies of serological and virological diagnostics of infectious diseases in animals of different species. In 2023, more than 43,000 studies of various biological materials from animals (productive and non-productive) were conducted. As part of government-ordered research, the inter-district veterinary laboratory revealed positive results when testing for rabies in small non-productive animals by performing a biological test on laboratory animals in 4 samples from pathological material, however when testing pathological material from productive animals for rabies, no positive results were found, during a study on leukemia in cattle, 356 positive samples were identified by the immunodiffusion reaction, and of these, 6 animals subsequently had changes in cell morphology according to a hematological test when removing a leukogram. Chlamydia in cattle was detected by the complement fixation reaction in 15 animals out of 868 animals examined. When examining blood serum for foot and mouth disease, bluetongue, equine infectious anemia, avian influenza, and African swine fever, the results were negative in all cases. According to data received from the inter-district veterinary laboratory, it may be said that the situation with rabies in small non-productive animals is worsening year after year and an increasing amount of research is required to ensure epizootic well-being in designated areas.