湖北农业科学 ›› 2018, Vol. 57 ›› Issue (8): 100-103.doi: 10.14088/j.cnki.issn0439-8114.2018.08.025

• 动物科学 • 上一篇    下一篇

大鳞鲃人工繁殖技术及胚胎发育观察

张棋1, 黄敏1, 李允2, 朱文欢1, 黄天乐1, 刘子栋1, 邵端1, 李莉娟3   

  1. 1.武汉市水产技术推广指导中心,武汉 430012;
    2.武汉渔水情生态渔业发展有限公司,武汉 430040;
    3.华中农业大学水产学院,武汉 430070
  • 收稿日期:2017-12-15 发布日期:2018-04-25
  • 通讯作者: 李莉娟,(电子信箱)lilijuan@mail.hzau.edu.cn。
  • 作者简介:张 棋(1989-),男,湖北松滋人,水产助理工程师,硕士,主要从事水生动物繁殖与病害防控研究,(电话)13476173312(电子信箱)zhangqi1989@webmail.hzau.edu.cn

Artificial Propagation and Observations on the Embryonic Development of Barbus capito

ZHANG Qi1, HUANG Min1, LI Yun2, ZHU Wen-huan1, HUANG Tian-le1, LIU Zi-dong1, SHAO Duan1, LI Li-juan3   

  1. 1.Wuhan Aquaculture Technology and Popularization Center,Wuhan 430012,China;
    2.Wuhan Yushuiqing Ecological Fisheries Development Ltd.,Wuhan 430040,China;
    3.College of Fisheries,Huazhong Agricultural University,Wuhan 430070,China
  • Received:2017-12-15 Published:2018-04-25

摘要: 从重庆引进大鳞鲃亲鱼进行了人工繁殖试验及胚胎发育观察。结果表明,注射LHRH-A2 3.5 μg/kg、HCG 600 IU/kg、DOM 3.5 μg/kg催产效果最佳,水温21~25 ℃,效应时间18 h,受精率68.0%,孵化率26.1%。雌性亲鱼相对产卵量7.7万/kg,卵为灰白色,漂浮性卵,无黏性,卵重360个/g,卵径1.5 mm,吸水后膨胀卵径达4.5 mm。孵化到仔鱼出膜需53~56 h,140 h后开口摄食。

关键词: 大鳞鲃, 人工繁殖, 胚胎发育

Abstract: In order to enrich the varieties of aquaculture in Wuhan,Barbus capito as parent fish were introduced from Chongqing. This study investigated the artificial propagation and embryonic development of Barbus capito. The results showed the injection of 3.5 μg/kg LHRH-A2,600 IU/kg HCG and 3.5 μg/kg DOM made better spawning effect. When the water temperature between 21~25 ℃,the response time of oxytocic was 18 h,the fertilization rate of eggs was 68.0%,and the hatchability rate was 26.1%. The relative fecundity of female parent fish was 77 000/kg,the eggs were offwhite,pelagic and non-viscid. The weight of egg was 360 g,the diameter of egg was 1.5 mm,and expanded to 4.5 mm after absorbing water.It took 53~56 h from being fertilized to hatching as larva stage,and took 140 h to initial feeding.

Key words: Barbus capito, artificial propagation, embryonic development

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