One of the significant problems is increase of productivity in animal husbandry while preserving and increasing the number of domestic animal which is considerably dependent on timely treatment of their injuries. Antibiotics and other medicines sometimes has any healing effect, besides, through milk and meat medicinal preparations get into a human’s organism affecting it negatively. UHF therapy is related to resonant action and excitation of acoustoelectric waves within cell membranes. Purpose of the article is to calculate the power characteristics of an auto-oscillator with the usage of quartz crystal oscillators. Technique for calculating power characteristics of quartz crystal ultra-high frequency oscillators used in electromagnetic therapy devices for animals has been developed.