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| 养殖密度对史氏鲟稚鱼生长的影响 | |
| 引用本文： | 庄平,李大鹏,王明学,张征,章龙珍,张涛.养殖密度对史氏鲟稚鱼生长的影响[J].应用生态学报,2002,13(6):735-738. |
| 作者姓名： | 庄平 李大鹏 王明学 张征 章龙珍 张涛 |
| 作者单位： | 1. 中国水产科学研究院长江水产研究所,荆州,434000;中国水产科学研究院东海水产研究所,上海,200090 2. 华中农业大学水产学院,武汉,430070 3. 中国水产科学研究院长江水产研究所,荆州,434000 |
| 基金项目： | 国家自然科学基金项目 ( 39870 12 6 )，国家“十五”重点科技攻关计划项目 ( 2 0 0 1BA5 0 5B0 5 11)，中国水产科学研究院基金资助项目( 96 0 10 4) |
| 摘 要： | 养殖密度对史氏鲟生长影响的研究结果表明 ,在养殖密度分别为 0 .2 32、0 .6 6 5、1.34 7和 2 .46 9kg·m-2 的流水环境中 ,各密度组的史氏鲟稚鱼的生长表现为不等速性 ,但生长离散没有加剧 .试验持续 2 8d后 ,各组的生长表现出显著差异 ,生长效率、特定生长率和日增重都随密度的增大而降低 ,而饵料转化率和净增重随密度的增大而增大 .特定生长率 (SGR)与养殖密度 (D)之间存在着显著的负相关 |
| 关 键 词： | 养殖密度 史氏鲟 稚鱼生长 特定生长率 饲料转化率 人工饲养 |
| 文章编号： | 1001-9332(2002)06-0735-04 |
| 修稿时间： | 2000年1月31日 |
Effect of stocking density on growth of juvenile Acipenser schrenckii |
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| ZHUANG Ping ,LI Dapeng ,WANG Mingxue ,ZHANG Zheng ,ZHANG Longzhen ,ZHANG Tao.Effect of stocking density on growth of juvenile Acipenser schrenckii[J].Chinese Journal of Applied Ecology,2002,13(6):735-738. | |
| Authors: | ZHUANG Ping LI Dapeng WANG Mingxue ZHANG Zheng ZHANG Longzhen ZHANG Tao |
| Institution: | Yangtze River Fisheries Research Institute, CAFS, Jingzhou. pzhuang@hotmail.com |
| Abstract: | The effect of stocking density on growth of juveniles Acipenser schrenckii was studied, and the results showed that juveniles Acipenser schrenckii reared for 28 days in a flowing water system under different stocking densities of 0.232, 0.665, 1.347, and 2.469 kg.m-2 grew in allometry. There were no significant differences between the final and initial SV under the four treatments. The growth efficiency, DWG, NY, and SGR of juveniles were decreased with the increase of stocking densities. However, the FCR and NY were increased with the increase of stocking densities. There were significant differences between these parameters under the low and high densities treatment after 28 days. Moreover, there was a significant negative linear correlation between stocking density (D) and special growth rate (SGR). |
| Keywords: | Acipenser schrenckii Specific growth rate Growth efficiency Feed conversion rate Aquaculture |
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