| 养殖密度对杂交鳢仔鱼生长与存活的影响 |
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| 引用本文： | 刘文奎,樊启学,杜海明,董俊峰,张磊.养殖密度对杂交鳢仔鱼生长与存活的影响[J].淡水渔业,2007,37(4):45-48. |
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| 作者姓名： | 刘文奎 樊启学 杜海明 董俊峰 张磊 |
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| 作者单位： | 华中农业大学水产学院,武汉,430070 |
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| 摘 要： | 在温棚水族箱中养殖杂交鳢仔鱼,养殖密度分别为0.5、1、2、4、8尾/L,共养殖15 d,试验结果表明:养殖密度在0.5～4尾/L之间,杂交鳢仔鱼的最终体重、特定生长率、日增重都随着养殖密度的增大而升高,当养殖密度为4尾/L时,三者达到最大值;进一步增加养殖密度,仔鱼的生长反而下降。高密度组(4、8尾/L)杂交鳢仔鱼个体生长速度离散度明显加大,仔鱼的成活率随养殖密度增加而下降。
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| 关 键 词： | 杂交鳢 养殖密度 特定生长率 死亡率 |
| 文章编号： | 1000-6907-（2007）04-0045-04 |
| 修稿时间： | 2007-02-05 |
Effect of Stocking Density on Growth and Survival of Larval Hybrid Snakehead |
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| LIU Wen-kui,FAN Qi-xue,DU Hai-ming,DONG Jun-feng,ZHANG Lei.Effect of Stocking Density on Growth and Survival of Larval Hybrid Snakehead[J].Freshwater Fisheries,2007,37(4):45-48. |
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| Authors: | LIU Wen-kui FAN Qi-xue DU Hai-ming DONG Jun-feng ZHANG Lei |
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| Institution: | Fishery College, Huazhong Agricultural University, Wuhan 430070 |
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| Abstract: | Larval hybrid snakehead were stocked and reared in an outdoor tank at a density of 0.5,1,2,4 and 8 ind./L for 15 days.The results showed that final weight,SGR and DWG of snakehead larvae increased with the increasing of density,then reached the highest at the stocking density 4 ind./L.Then the SGR decreased after it reached the peak.The larval in high density groups(4 and 8 ind./L)had great variation in size and growth.The survival rate decreased with stocking density increasing. |
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| Keywords: | hybrid snakehead stocking density SGR mortality rate |
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