ВЛИЯНИЕ ВИТАМИНОВ И АМИНОКИСЛОТ НА КРИТИЧЕСКИЕ ПЕРИОДЫ ЭМБРИОНАЛЬНОГО РАЗВИТИЯ АФРИКАНСКОГО КЛАРИЕВОГО СОМА

Abstract

The work is devoted to the study of critical stages of embryonic development of African sharptooth catfish and the assessment of the effect of biologically active substances, amino acids and vitamins on African sharptooth catfish. The object of the study was incubated roe of African catfish at different stages of development. The aim of this work was to assess the effect of the vitamin-amino acid complex on embryogenesis of the African sharptooth catfish. Chiktonik was the source of vitamins and amino acids. The appropriate concentration of vitamins and amino acids was selected, which would ensure higher survivability of embryos. In the current standards of the fish-breeding process, a certain amount of waste is allowed from 10 to 40%, therefore, the search for reserves for increasing the yield of fish-breeding products associated with a decrease of waste at different stages of embryonic development is relevant. Timely and highquality biological control is a measure of early detection of any disruptions in the fish breeding process and is necessary for their prompt elimination. As shown by the research results, the vitamin-amino acid complex reduced the death rate at different stages of African catfish embryogenesis. Higher survivability rate of embryos in the experimental groups that received the vitamin-amino acid complex proves its effectiveness. The highest rates were obtained when “Chiktonik” was used at a dose of 1.5 ml / l. The second stage of our study was carried out at the larval development stage of African catfish. When using Chiktonik vitamin and amino acid complex at a dose of 1 ml / l and 1.5 ml / l, the yield of larvae increased significantly compared to the control.