CAJ | 학술논문

采用群体选育方法构建了海南、深圳和福建3个卵形鲳鲹（Trachinotus ovatus）选育群体，对选育群体的生长特性和变异程度进行了分析．结果显示，经过人工选择后，各群体生长速度均较对照组有显著提高，海南、深圳、福建群体的特定生长率分别比对照组提高24．06％、7．19％和24．84％；福建群体的绝对增重率和特定生长率比海南群体分别高0．23 g／d 和2．79％，比深圳群体分别高0．49 g／d 和9．41％．在生长早期（2月龄），福建群体体重变异程度最大，深圳群体次之，海南群体变异相对较平稳；群体间变异程度相近时（6月龄），海南群体内的体重分布范围较广（200～600 g），而福建群体的体重分布较为集中，体重在450～500 g 之间的个体占43．33％．研究表明，福建群体比海南群体和深圳群体具有更好的生长优势，可做进一步选育．
채용군체선육방법구건료해남、심수화복건3개란형창소（Trachinotus ovatus）선육군체，대선육군체적생장특성화변이정도진행료분석．결과현시，경과인공선택후，각군체생장속도균교대조조유현저제고，해남、심수、복건군체적특정생장솔분별비대조조제고24．06％、7．19％화24．84％；복건군체적절대증중솔화특정생장솔비해남군체분별고0．23 g／d 화2．79％，비심수군체분별고0．49 g／d 화9．41％．재생장조기（2월령），복건군체체중변이정도최대，심수군체차지，해남군체변이상대교평은；군체간변이정도상근시（6월령），해남군체내적체중분포범위교엄（200～600 g），이복건군체적체중분포교위집중，체중재450～500 g 지간적개체점43．33％．연구표명，복건군체비해남군체화심수군체구유경호적생장우세，가주진일보선육．
Three selective groups of Trachinotus ovatus which were collected form Hainan,Shenzhen and Fujian,re-spectively,had been constructed by population selective breeding and their growth trait and variation were ana-lyzed.The results showed that growth rate in each group was significantly higher than that of control group after multiple selection.The specific growth rates in Hainan,Shenzhen,Fujian group were 24.06%,7.19% and 24.84%,and they were all higher than the control group.The absolute growth rate and specific growth rate in Fu-jian group were 0.23 g/d and 2.79% which were higher than that of Hainan group,respectively,and 0.49 g/d and 9.41% higher than that of Shenzhen group.In the earlier stage,the maximum weight variation was found in Fujian group,followed by Shenzhen group,and that Hainan group was the minimum.With same weight variation (November,2009),the distribution range of weight in Hainan group was wider (200 ~600 g),and that of Fujian group was concentrate as 43.33% of the later were weighted between 450 g and 500 g.It could be concluded that the Fujian group had a greater growth advantage than Hainan and Shenzhen group.Thus,it can be a good candi-date for further selections.