FIELD: food production.
SUBSTANCE: invention relates to food production, in particular to methods for preparing fish feed. The method includes feeding mixed fodder, a thin layer of which is sprayed with ultrafine iron particles obtained by high-temperature condensation, 100±2 nm in size, at a dose of 30 mg/kg of feed, pre-treated with ultrasound for 30 min at a frequency of 35 kHz.
EFFECT: invention provides an increase in the concentration of macro- and essential microelements in muscle tissue and in the internal organs of fish.
1 cl, 4 tbl
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Authors
Dates
2022-11-17—Published
2022-04-05—Filed