METHOD OF PRODUCING BIOLOGICALLY ACTIVE PREPARATION FOR SWINE Russian patent published in 2024 - IPC A23K10/24 A23K10/26 A23K20/111 A23K20/142 

FIELD: agriculture.

SUBSTANCE: method of producing a biologically active preparation for swine involves heating and milling the starting material, sterilization and drying, wherein using ultraviolet irradiators and treatment temperature of 160–170 °C keratin-containing raw material is sterilized, purified and decontaminated raw material is fed into a chipper for grinding to a size of feather particles with diameter of 0.5–1 cm to obtain feather-down meal with moisture content of up to 50.0%, and also involves drying animal blood at temperature of 60–70 °C for 30–40 minutes, before drying, 0.3% hydrochloric acid solution is added to animal blood and held for 5–6 hours, the obtained blood product is milled to obtain blood meal, then feather meal and blood meal, dry powder of lysine and benzyl acetate are thoroughly mixed in percentage ratio of 50:40:6:4, the obtained mixture is fed to pigs with mixed fodder in dose of 5.0 g/head once a day.

EFFECT: invention makes it possible to increase average daily gain of live weight of piglets by 12,1%, slaughter yield of carcass — by 1,6%, multiple births of breeding stock — by 10,5%, livestock safety — by 5,4%.

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