FIELD: veterinary medicine.
SUBSTANCE: the present innovation deals with a single intramuscular injection of gonadoliberin surfagon at the dosage of 50 mcg on the 10th d after calving together with immunomodulating preparation thymogenum at the dosage of 5 mcg/kg body weight to be injected intramuscularly, as well, thrice, starting since the 10th d after calving. The innovation suggested normalizes cyclic ovarian activity and increases conception rate in cows.
EFFECT: higher efficiency.
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