METHOD FOR IMPROVING RESILIENCE OF FISH EMBRYOS IN AQUACULTURE Russian patent published in 2020 - IPC A01K61/10 A01K61/13 

FIELD: fishing.

SUBSTANCE: invention relates to aquaculture and can be used for increasing resilience of fish embryos at early stages of ontogenesis both on an industrial scale, and at small aquaculture enterprises. Method for increasing resilience of embryos of fish involves during artificial incubation of fish spawn using a biologically active preparation, namely, arylchalcogylacetates of tris(2-hydroxyethyl)ammonium - protatrans, of general formula R-ArXCH₂CO₂^-⋅HN⁺(CH₂CH₂OH)₃ (A), where R = 2-CH₃, 4-Cl, X = chalcogen (O, SO₂), in particular compounds of formula 1 or formula 2 2-CH₃-C₆H₄OCH₂CO₂^-⋅HN⁺(CH₂CH₂OH)₃ (1) or 4-Cl-C₆H₄SO₂CH₂CO₂^-⋅HN⁺(CH₂CH₂OH)₃ (2). Protatranes of said formulas are added to water solution during incubation of caviar in stage of movable embryo to release of fish larvae. Method uses an aqueous solution of the preparation with concentration not higher than 0.0001%.

EFFECT: method of increasing viability of embryos of fishes allows increasing embryo out of caviar, further survival of embryos and larval fish, reducing volumes of caviar used for fish production, reducing expenses for its treatment and preventive measures.

3 cl, 2 tbl