The object of research was semen taken from breeding rams of the Mol-dovan Tigaie breed for milk, meat, wool, raised at the STE "Maximovca" sheep farm. The microscopic testing of the ejaculates taken was carried out using the CEROS computer program. For the dilution of the semen admitted for processing, the dilution medium GȚJ (glucose, sodium citrate, egg yolk) was used, in the composition of which, as an additional component, the preparation BioR was introduced, in a concentration of 0.6-0.7%V. After freezing-reanimation, the media proposed for this technique protect the spermatozoa against damage to the acrosome and biological membranes and allow the functional integ-rity of the spermatozoa to be preserved.