The efficiency of using an experimental drug for animal husbandry based on oil solutions of detonation synthesis nanodiamonds modified with beta-carotene on rabbits and heifers of the dairy direction of productivity was studied. Administration of the drug by various methods (intramuscularly and subcutaneously) to 45-day-old rabbits did not have a significant difference, but the indicators inherent in rabbits due to its intramuscular administration were slightly higher. A single administration of the experimental drug to 12-month-old heifers caused a change in the biochemical parameters of blood serum. In particular, a significant (P>0.95) increase in the level of total serum protein, alkaline phosphatase and carotene was observed. With a low degree of confidence (P>0.90), the content of ALT, glucose and total cholesterol increased after the introduction of the experimental drug. The safety, effectiveness and prospects of further research of the developed drug on animals of different species have been established.