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对翘嘴鳜♀×斑鳜♂(Siniperca chuatsi♀×S.scherzeri♂)杂交子一代和翘嘴鳜在0.3月龄、2月龄、7月龄和11月龄时的体重、体长和体高进行测量,从变异系数、杂种优势率、相对/绝对生长率、体重与体长的幂函数曲线以及肥满度5方面,对杂交子一代和母本翘嘴鳜的生长速度和杂种优势进行对比分析。结果显示,7月龄时杂交子一代的体重(300.4 g±118.2 g)与翘嘴鳜(305.2 g±82.5 g)差异不显著,且在7月龄时体重、体长和体高的月相对生长率(280.13%,25.30%和27.55%)比翘嘴鳜显著增高(89.62%,15.90%和12.72%);在0.3月龄和11月龄时体长的超亲杂种优势率分别为2.48%和0.91%;11月龄时杂交子一代的体重(540.88 g±173.66 g)显著低于与翘嘴鳜(624.45 g±154.11g)(P<0.05);杂交子一代和翘嘴鳜体重与体长关系幂函数生长方程的决定性指数R2(0.992和0.995)、条件因子a(0.059和0.058)和异速生长因子b(2.722和2.740)在数值上非常接近。结论认为,尽管在总体生长速度上翘嘴鳜♀×斑鳜♂杂交子一代较母本翘嘴鳜略慢,但其早期的生长趋势与翘嘴鳜相似,并在体重与体长的生长关系方面具有良好的一致性。杂交子一代遗传了母本翘嘴鳜的快速生长性能,并在体长性状上显现出一定的超亲杂种优势。本研究通过分析养殖翘嘴鳜♀×斑鳜♂杂交子一代的生长速度,探讨杂交子一代的早期生长趋势及其杂种优势,旨在为杂交子一代的规模化人工养殖和品种选育等提供参考数据。
Body weight, body length and body height at the age of 0.3 months, 2 months, 7 months and 11 months of age for the hybrids of Siniperca chuatsi♀ × S. scherzeri♂ and Cephalosporium chinensis , The growth rate and heterosis of hybrid generation and female Culter albopictus were compared in terms of coefficient of variation, rate of heterosis, relative / absolute growth rate, power function curve of body weight and body length, and fatness 5 analysis. The results showed that the body weight (300.4 g ± 118.2 g) of hybrid generation was not significantly different from that of Carya (305.2 g ± 82.5 g) at 7 months of age, and relative growth of body weight, body length and body height at 7 months of age (280.13%, 25.30% and 27.55%) were significantly higher than that of Crested Alice (89.62%, 15.90% and 12.72%, respectively). The prevalences of super-parents heterosexuality at length of 0.3 months and 11 months were 2.48% The body weight of hybrid generation (540.88 g ± 173.66 g) was significantly lower than that of Carya (624.45 g ± 154.11 g) (P <0.05) at 11 months of age. Body weight and body length The decisive indices R2 (0.992 and 0.995), conditional factors a (0.059 and 0.058) and allometric growth factors b (2.722 and 2.740) for the power function growth equation are numerically close to each other. The conclusion is that the early growth trend is similar to that of Coccinella septempunctata in spite of its slightly slower overall growth rate than that of the mother Coccothrax japonicus, In terms of good consistency. The hybrid progeny inherited the rapid growth performance of the female Culter alburnii and showed some super-heterotic heterosis in body length traits. In this study, by analyzing the growth rate of hybrid Cotyledons 斑 ♀ × 斑 鳜 ♂ hybrids, to explore the early hybrid hybrid generation growth trends and hybrid vigor, designed for hybrid generation large-scale breeding and breed breeding provide Reference data