野生和野生亲本子一代大眼幼体在扣蟹阶段养殖性能的比较
CSTR:
作者:
作者单位:

上海海洋大学,上海海洋大学,浙江澳凌水产种业科技有限公司,上海海洋大学,上海海洋大学,上海海洋大学

作者简介:

通讯作者:

中图分类号:

S968.25

基金项目:

农业部现代农业产业技术体系专项(CARS-48);上海市高水平地方高校建设科研项目(A1-2801-18-1003);上海市科委工程技术中心能力提升项目(16DZ2281200);浙江省湖州市人社局"湖州市南太湖精英计划"(湖精英领2017-1C);深圳市澳华农牧有限公司横向项目(D-8006-16-0088)


Evaluation of culture performance of wild megalopae and offspring of wild broodstock of Chinese mitten crab Eriocheir sinensis during juvenile culture stage
Author:
Affiliation:

Shanghai Ocean University,Shanghai Ocean University,Zhejiang Aoling Aquacultrue seed Industry Co., Ltd, Zhejiang changxing,Shanghai Ocean University,Shanghai Ocean University,Shanghai Ocean University

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    通过养殖实验,比较野生捕捞大眼幼体(G0)和野生亲本人工繁育大眼幼体(G1)在扣蟹养殖阶段的生长、成活率、早熟率和最终产量等指标,结果显示:(1)无论雌体还是雄体,野生群体在扣蟹阶段的平均体质量一直低于野生子一代群体,其中雌体120和150日龄时规格差异显著(P<0.05);(2)两群体的增重率(weight growth rate,WGR)均呈下降趋势,且野生群体在扣蟹阶段的WGR总体低于人工繁育群体,仅雌体150~180日龄及180~210日龄这两个时间段内高于人工繁育群体;特定增长率(specific growth rate,SGR)变化趋势及差异性与WGR类似;(3)野生群体养成扣蟹的最终平均规格和一龄早熟率均低于人工繁育群体,但平均成活率和最终产量却高于人工繁育群体;(4)野生群体养成的最终扣蟹体质量主要集中于0~4.00 g(36.76%),并且显著高于野生G1人工繁育群体(P<0.05),人工繁育群体体质量主要集中于4.00~5.99 g(26.93%)和6.00~7.99 g(25.43%)这两个范围内,两群体扣蟹在≥ 12 g体质量范围内的占比均较低,分别为8.46%和7.60%。野生亲本繁育子一代的大眼幼体在扣蟹阶段的平均体质量较大,但成活率和平均产量相对较低。通过养殖实验初步比较了两种不同来源的野生大眼幼体在扣蟹阶段的养殖效果,为合理选育和利用野生大眼幼体提供实践依据。

    Abstract:

    The research was aimed to compare the growth performance of wild megalopae (G0) and the offspring of wild broodstock (G1) of E. sinensis during the juvenile culture stage based on a culture experiment. The comparison and differences of body mass, survival rate, precocious rate, and the final yield are shown as follows:(1) No matter for females or males, the average mass of wild G0 was consistently lower than that of wild G1 individuals throughout the culture period with significant differences at 120-day and 150-day old of females (P<0.05); (2) The weight gain rate (WGR) and specific growth rage (SGR) of both populations were on the decline and they were generally higher in G1 individuals all through the culture stage except for the 150-180 and 180-210 days old. (3) The survival, yield and precocious rate of wild G0 were relatively higher than those of wild G1 individuals; (4) As for the size distribution of juvenile crabs, the body mass of wild G1 were mainly concentrated on the ranges of 0-4.00 g (36.76%), but the wild G1 were mainly concentrated on 4.00-5.99 g (26.93%) and 6.00-7.99 g (25.43%), the percentage large-size juveniles (≥ 12 g) were all low for both populations, only 8.46% and 7.60%. Wild megalopae were superior to the offspring of wild E. sinensis on survival rate and yield, and difference in nutritional value or immunity of both populations still needs further research.Through the culture experiment, the breeding effects of wild megalopae from two different sources in the juvenile culture stage were compared, which provided a practical basis for rational breeding and utilization of wild megalopae.

    参考文献
    相似文献
    引证文献
引用本文

王海宁,姜晓东,邓登,吴旭干,王少兵,成永旭.野生和野生亲本子一代大眼幼体在扣蟹阶段养殖性能的比较[J].上海海洋大学学报,2019,28(1):67-74.
WANG Haining, JIANG Xiaodong, DENG Deng, WU Xugan, WANG Shaobing, CHENG Yongxu. Evaluation of culture performance of wild megalopae and offspring of wild broodstock of Chinese mitten crab Eriocheir sinensis during juvenile culture stage[J]. Journal of Shanghai Ocean University,2019,28(1):67-74.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2018-08-09
  • 最后修改日期:2018-10-24
  • 录用日期:2018-11-28
  • 在线发布日期: 2019-01-21
  • 出版日期:
文章二维码