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A number of biologically active compounds, protatrans with the general formula ArХCH2CO2– · НN+(CH2СН2ОН)3 (А), in which Ar = aryl; Х = O, S, SO, SO2, Se were synthesized. It is the first time that the use of protatrans (А) was suggested, namely of the protatrans 2-Me-С6Н4OCH2CO2– · НN+(CH2СН2ОН)3 (1) and 4-Cl-С6Н4SO2CH2CO2– ·НN+(CH2СН2ОН)3 (2), as stimulants of growth and development of underyearlings of freshwater whitefish hybrid forms. It was concluded that adding microquantities of protatrans 1 and 2 (0,001 %) to the fish feed for the hybrid of lake whitefish and Siberian whitefish increases its viability by 6 %, growth by 10 % and weight by 14 %. Available synthetic biostimulants 1 and 2 can be used for artificial reproduction of freshwater cold-water fish (whitefish, salmon).

Prospects of the Use of Synthetic Biostimulants for the Development of Aquaculture of Whitefishes in Lake Baikal