1. 华南农业大学 动物科学学院, 广东 广州 510642;
2. 中山大学 生命科学学院, 水生经济动物研究所, 南海生物资源开发与利用协同创新中心, 广东 广州 510275;
3. 佛山市南海百容水产良种有限公司, 广东省工程技术研究中心, 广东 佛山 528216
孙际佳(1976-),女,博士,主要从事水产动物遗传育种研究.E-mail:jjsun@scau.edu.cn
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广东省战略性新兴产业核心技术攻关项目（2012A020800001）；广东省教育厅项目（cxzd1104）；佛山市引进科技创新团队资助计划（2014IT100122）.
1. Animal Science College, South China Agricultural University, Guangzhou 510642, China;
2. South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Y
对翘嘴鳜♀×斑鳜♂（♂）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）（（0.992和0.995）、条件因子（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。
Based on the measured data of three important economic traits (body weight, body length and body height) of the hybrids F1 of individuals at the ages of 0.3 months, 2 months, 7 months and 11 months, the growth rate and heterosis of the hybrids F1 were analyzed and compared with , using the performance metrics of coefficient of variation, high-parent heterosis, relative and absolute growth rate, relationship curve of body weight and body height, and relative fatness. At age of 7 months, the mean body weight of the hybrids F1 (300.4 g±118.2 g) was not significantly different with (305.2 g±82.5 g), while the mean monthly relative growth rate of body weight, body length and body height (280.13%, 25.30% and 27.55% ) of the hybrids F1 were higher than that of (89.62%, 15.90% and 12.72%). The high-parent heterosis of the hybrids F1 for body length at age of 0.3 months and 11 months was 2.48% and 0.91%, respectively. All growth rate curves of the hybrids F1 were similar with their female parent (540.88 g±173.66 g) was significantly lower than (624.45 g±154.11 g) at age of 11 months. The coefficient of determination (0.992 and 0.995), condition factor (0.059 and 0.058) and allometric growth factor (2.722 and 2.740) for relationship curve of body weight and body height of the hybrids F1and were almost identical. These results indicated that the primary growth trend of the hybrids F1was similar to , the relationship curve of body weight and body height of the hybrids F1 was consistent with that of , even though their overall growth rate was slightly slower than successfully inherited the fast growth trait from their female parent , with some high-parent heterosis in body length.
孙际佳,何建国,刘丽,王海芳,卢薛,胥鹏,李桂峰.翘嘴鳜♀×斑鳜♂杂交子一代早期生长速度[J].中国水产科学,2016,23(4):890-899
SUN Jijia, HE Jianguo, LIU Li, WANG Haifang, LU Xue, XU Peng, LI Guifeng. Analysis of early-stage growth rate of the hybrid F1 of Siniperca chuatsi ♀× S. scherzeri ♂[J]. Journal of Fishery Sciences of China,2016,23(4):890-899
