| 姚江水域日本沼虾生态选育品系与自然品系间生长特征及养殖经济效益的比较分析 |
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| 引用本文： | 吕敢堂,朱卫东,杨阳,王志铮,罗运斌.姚江水域日本沼虾生态选育品系与自然品系间生长特征及养殖经济效益的比较分析[J].浙江海洋学院学报(自然科学版),2011,30(6). |
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| 作者姓名： | 吕敢堂 朱卫东 杨阳 王志铮 罗运斌 |
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| 作者单位： | 1. 浙江海洋学院水产学院,浙江舟山,316004
2. 余姚市水产技术推广中心,浙江余姚,315400 |
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| 基金项目： | 浙江省重大科技专项农业重点项目(2008C12083) |
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| 摘 要： | 比较研究了姚江水域生态选育品系与自然品系日本沼虾虾苗的养殖生长与生产情况。结果表明：（1）0、20、40、60、80到100 d养殖日龄选育品系日本沼虾虾苗体长、体重分别为1.0、2.5、2.7、3.2、4.1、5.3 cm和0.023、0.423、0.562、1.006、1.464、3.255 g,自然品系日本沼虾虾苗体长和体重分别为1.0、2.3、2.5、3.0、3.5、4.4 cm和0.024、0.348、0.454、0.863、1.449、1.887 g;（2）选育品系单季养殖单位面积产量和产值分别为1 065 kg/hm2和14.91万元/hm2,自然品系单季养殖单位面积产量和产值分别为690 kg/hm2和7.59万元/hm2。
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| 关 键 词： | 姚江水域 日本沼虾 生态选育 生长特征 经济效益 |
The Contrast of Growth Characteristics and Economic Effect between Ecological Breeding Strain and Natural Strain about Macrobrachium nipponense From Yuyao River |
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| LV Gan-tang,ZHU Wei-dong,YANG Yang,et al.The Contrast of Growth Characteristics and Economic Effect between Ecological Breeding Strain and Natural Strain about Macrobrachium nipponense From Yuyao River[J].Journal of Zhejiang Ocean University(Natural Science Edition),2011,30(6). |
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| Authors: | LV Gan-tang ZHU Wei-dong YANG Yang |
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| Institution: | LV Gan-tang1,ZHU Wei-dong2,YANG Yang1,et al(1.Fishery School of Zhejiang Ocean University,Zhoushan 316004,2.Fisheries Technology Promotion Center of Yuyao City,Yuyao 315400,China) |
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| Abstract: | Contrast the growth characteristics between Yuyao breeding strain and natural strain about Macrobrachium nipponense,the average length is 1.0,2.5,2.7,3.2,4.1 and 5.3 cm,respectively,and the average weight is 0.023,0.423,0.562,1.006,1.464 and 3.255 gram,respectively,on breeding strain every 20 d;the average length is 1.0,2.3,2.5,3.0,3.5 and 4.4 cm,respectively,and the average weight is 0.024,0.348,0.454,0.863,1.449 and 1.887 gram,respectively,on natural strain.In early stage the two strains have no differenc... |
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| Keywords: | Yuyao river Macrobrachium nipponense ecological breeding growth characteristics economic effect |
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