Morphometric characteristics of return hybrids of kaluga Huso dauricus and sterlet Acipenser ruthenius (Acipenseridae)-Reference-Cited by-同舟云学术

Morphometric characteristics of return hybrids of kaluga Huso dauricus and sterlet Acipenser ruthenius (Acipenseridae)

Published:2023-10-13 Issue:3 Volume:2023 Page:65-70
ISSN:2073-5529
Container-title:Vestnik of Astrakhan State Technical University. Series: Fishing industry
language:en
Short-container-title:

Author:

Sviderskiy Viktor Aleksandrovich¹

Affiliation:

1. Far Eastern Technical Fisheries University

Abstract

The sturgeon fish species cultivation is a necessary activity for the preservation of natural populations in critical condition as well as in a market economy, makes it possible to obtain food products with high added value. Hybridization of sturgeon allows you to create promising cultivation facilities, and introduce them into farms in order to increase the yield of marketable products. Due to the heterosis effect the hybrid inherits useful economic characters of the intial species and also repeats them in the external structure. The degree of heritability of traits of parental species can be estimated by the relative values of body parts and counting characteristics. In addition to the degree of similarity and difference of the hybrid between the parent species it is also possible to assess the degree of heritability of economic traits, thereby conducting selection. A comparative analysis of six-year-old hybrids (K × St) × K, (K × St) × St and (St × K) × K was carried out. 21 morphometric indicators were used in the work. The patroclinic nature of inheritance of some traits has been revealed. (K × St) × K significantly differed according to the Student's criterion compared to other hybrids in terms of relative head indicators. The diagnostic characters of the studied hybrids turned out to be relative indicators of the head length and the number of lateral scutes.

Publisher

Astrakhan State Technical University

Subject

General Medicine

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