FIELD: agriculture. SUBSTANCE: method involves stimulating cows with PMS (pregnant mare serum) then, additionally, with anti-PMS. PMS treatment of animals is administered on 9th-10th day of the sexual cycle. Anti-PMS is injected before the second insemination in a relation of PMS:anti-PMS (2: 0.9) (2:1.1) four days after medication with PMS. This eliminates prolonged effect of PMS on the hormonal system of cows after insemination. EFFECT: higher efficiency. 2 cl, 1 tbl
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