Hybridisation, widely used in sturgeon breed-ing, is mainly aimed at improvement of its pro-duction value. The hybrids obtained as a result of such a breeding process usually manifest higher growth rate and survivability, they achieve sexual puberty earlier and they are better suited to inten-sive b...
| Main Authors: | , , , |
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.618.8673 http://www.cazv.cz/attachments/6-Jankowska.pdf |
| Summary: | Hybridisation, widely used in sturgeon breed-ing, is mainly aimed at improvement of its pro-duction value. The hybrids obtained as a result of such a breeding process usually manifest higher growth rate and survivability, they achieve sexual puberty earlier and they are better suited to inten-sive breeding (Burtsev, 1969; Burtsev et al., 1987; Gershanovich et al., 1987). In 1995, the first crossbred of Siberian sturgeon with green sturgeon (SZ) was obtained. The ex-amination of the new hybrid revealed its higher production value in comparison with the parent species (Kolman et al., 1997). Numerous features, including tissue quality, have been found to be in-herited to a greater extent from the father species (Kolman et al., 1999; Jankowska et al., 2002). The experimental results of the hybrid produc-tion value encouraged researchers to carry out spawning with milt from its maturing males and fertilise the spawn of Siberian sturgeon. The recip-rocal hybrid of Siberian sturgeon with green stur-geon – SSZ – was obtained in this way (Kolman et al., 2003). This objective of this study was to evaluate the tissue quality of the new hybrid SSZ and its applica-tion in determining the principles of inheritance of production values in Acipenseridae fish. MATERIAL AND METHODS Six specimens of a reciprocal hybrid (SSZ) Sibe-rian sturgeon × (Siberian sturgeon × green stur-geon) – Acipenser baeri Br × (Acipenser baeri × Acipenser medirostris Ayres) were the subjects of the experiment. The hybrid was obtained by the fertilization of Siberian sturgeon spawn with the milt of a hybrid between Siberian sturgeon and Production value, chemical composition and colour of fillets of the reciprocal hybrid of Siberian sturgeon with green sturgeon (Acipenser baeri Br × (Acipenser |
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