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Ribogospod. nauka Ukr., 2021; 1(55): 66-79
DOI: https://doi.org/10.15407/fsu2021.01.066
УДК 639.371.5:639.311

Fisheries-biological evaluation of young-of-the-year wild carp-domestic carp hybrid of different genesis

U. Kuts’, This email address is being protected from spambots. You need JavaScript enabled to view it. , Lviv Experimental Station of the Institute of Fisheries of the NAASU, Velykyi Lyubin
H. Kurinenko, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv

Purpose. To provide a comparative analysis of fisheries and biological parameters of young-of-the-year wild carp-domestic carp hybrids obtained from males of different genetic origin by natural spawning method, with subsequent use in industrial hybridization.

Methodology. Cultivation was carried out in pond conditions of the Lviv Research Station of the Institute of Fisheries of NAAS. Material for the study were young-of-the-year wild carp-domestic carp hybrids obtained from age-8 and 9 males of Amur wild carp of different genesis. Stocking density of 4-day larvae in nursery ponds was 20 thousand ind./ha. Growth rate was evaluated by using absolute, relative, daily and specific growth rate according to I.I. Schmalhausen. Feeding of fish was carried out with ground grain, starting from the first decade of July. Statistical processing of the material was performed in Microsoft Excel 2016. Criteria for the analysis of parameters were their average value and arithmetic mean error (M ± m).

Findings. According to performed studies, young-of-the-year wild carp-domestic carp hybrids obtained from Amur wild carp males of different genesis in terms of dynamics of weight accumulation and linear growth, survival, fish productivity, hybrids obtained from cryo-males were not inferior to  young-of-the-year wild carp-domestic carp obtained from local males. However, according to the main body-build indices, they had similar values but were slightly inferior.

Originality. For the first time in Ukraine, a comparative analysis of fisheries and biological parameters of young-of-the-year wild carp-domestic carp hybrids obtained from males of different genetic origin in terms of industrial hybridization was performed.

Practical value. The results of this work will provide a comprehensive assessment of fish and biological parameters of young-of-the-year wild carp-domestic carp hybrids obtained from Amur wild carp males of different genetic origin and justify their use in breeding work for further reproduction in breeding farms and to obtain industrial hybrids.

Key words: Amur wild carp, genesis, body weight, body length, fatness, fish productivity.

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