Department of Ichthyology and Aquaculture, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland.
Department of Pond Fishery, National Inland Fisheries Research Institute, Oczapowskiego 10, 10-719 Olsztyn, Poland.
Int J Mol Sci. 2024 May 26;25(11):5784. doi: 10.3390/ijms25115784.
The aim of this study was to analyze the survival and growth of intergeneric ( × L.) sterbel hybrids obtained by fertilizing sterlet eggs with cryopreserved beluga semen. The rate of embryonic development did not differ between sterbel hybrids (experimental groups) and sterlets (control groups), and the hatching period was identical in all groups. The survival rate of hybrid larvae was higher in the experimental groups than in the control groups. Body weight and body length measurements revealed that sterbel hybrids grew at a faster rate than the control group sterlets. The hybrid origin of sterbels produced with the use of cryopreserved beluga semen was confirmed in a genetic analysis based on species-specific DNA fragments. To the best of the authors' knowledge, this is the first study to analyze the growth of sterbel hybrids derived from cryopreserved semen. The research findings indicate that this type of intergeneric hybridization delivers satisfactory results and can be applied in sturgeon aquaculture.
本研究旨在分析用冷冻保存的白鲸精液对小体鲟鱼卵进行受精后获得的属间（×L.）杂交种的存活和生长情况。杂交种胚胎的发育率与小体鲟鱼（对照组）无差异，且所有组的孵化期相同。实验组杂交种幼体的存活率高于对照组。体重和体长测量表明，杂交种的生长速度快于对照组小体鲟鱼。基于种特异性 DNA 片段的遗传分析证实，使用冷冻保存的白鲸精液生产的小体鲟鱼的杂交起源。据作者所知，这是首次分析冷冻精液来源的小体鲟鱼杂交种生长情况的研究。研究结果表明，这种属间杂交产生了令人满意的结果，可应用于鲟鱼养殖。
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