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- Title
Technology of formation of replacement-brood stock of pikeperch in conditions of fish farms in Kazakhstan.
- Authors
Badryzlova, Nina; Koishybayeva, Saya; Assylbekova, Saule; Isbekov, Kuanysh
- Abstract
The article presents biotechnical measures for harvesting spawners and individuals of different ages of pikeperch from a natural reservoir and transporting pikeperch from fishing sites to a fish farms. The values of body weight, minimum allowable length and fatness of spawners and younger age groups of pikeperch are given. Comparative characteristics of fish-breeding and biological indicators of males and females with statistical processing of indicators are given. The characteristic of the production capabilities of wild pikeperch spawners during spawning, incubation of eggs and obtaining larvae is given. The article describes the biotechnical methods of conducting pikeperch spawning in spawning cages on nests in pond conditions of fish farms, incubation of eggs in "Amur" devices. Data on the culturing pikeperch juvenile in cages and the cultivation of fingerlings and two-year-old pikeperches in ponds are presented. The characteristic of fish-breeding and biological indicators of fingerling and two-year-old pikeperch cultured in a polyculture with cyprinid fish is given. The data of statistical analysis of indicators of weight final values, minimum allowable length and fatness of fingerlings and two-year-old pikeperches cultured in ponds for selection in the formed replacementbrood stock of pikeperch are presented. The dynamics of the main hydrochemical indicators of ponds is presented. The developed biotechnical standards for the formation of replacement-brood stock of pikeperch in the conditions of fish farms in the South of Kazakhstan are recommended.
- Subjects
FISH farming; WALLEYE (Fish); POLY-aquaculture; BODY weight; QUANTITATIVE research
- Publication
EurAsian Journal of Biosciences, 2020, Vol 14, Issue 1, p441
- ISSN
1307-9867
- Publication type
Article