CN101946740A - 克氏原螯虾离体虾卵单体孵化方法及其隔离孵化内床 - Google Patents

克氏原螯虾离体虾卵单体孵化方法及其隔离孵化内床 Download PDF

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CN101946740A
CN101946740A CN2010105068233A CN201010506823A CN101946740A CN 101946740 A CN101946740 A CN 101946740A CN 2010105068233 A CN2010105068233 A CN 2010105068233A CN 201010506823 A CN201010506823 A CN 201010506823A CN 101946740 A CN101946740 A CN 101946740A
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CN101946740B (zh
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丁怀宇
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Huaiyin Normal University
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Abstract

本发明提出了一种克氏原螯虾离体虾卵单体孵化方法及其隔离孵化内床。该方法的步骤是：对抱卵虾进行消毒处理，实施亲虾与卵的分离，对虾卵进行着床孵化，而所述的对虾卵进行着床孵化是将虾卵在同样的孵化条件下，隔离成一卵一室的单体孵化方式。本发明的隔离孵化内床设置于复合孵化床内，由多层隔离孵化内床片在水体中作上下叠加构成，隔离孵化内床片由上床片和下床片组成，上、下床片之间设有单体虾卵孵化室。本发明设置的单体虾卵孵化室使虾卵相互之间不接触，减少病害发生，是防止病害传染蔓延的有效措施；隔离孵化内床为立体式孵化，增加了虾卵孵化数量。本发明经试验在同等条件下，孵化率可提高10-15%左右。

Description

克氏原螯虾离体虾卵单体孵化方法及其隔离孵化内床
  
技术领域
本发明涉及克氏原螯虾卵人工孵化的方法及装置，特别涉及克氏原螯虾离体虾卵单体孵化方法及其隔离孵化内床。
背景技术
克氏原螯虾（以下简称龙虾），由于烹制后味道鲜美，深得人们的喜爱，目前市场的需求量越来越大。为了发展龙虾产业，业内科技人员对龙虾的人工繁殖技术进行了研究。申请人根据克氏原螯虾胚发育生物学原理，提出了一种克氏原螯虾卵离体培育方法（申请了发明专利，申请号200810019234.5），以及一种克氏原螯虾卵人工孵化装置（申请了实用新型专利，申请号2010205558878 ）。上述申请的关键技术是对抱卵虾进行消毒处理：实施亲虾与卵的分离：对虾卵进行分级孵化，并且优化模拟龙虾的野外生存环境，在特制的复合孵化床水循环装置内完成龙虾的人工孵化。实践证明，龙虾的人工孵化获得了成功，孵化率达到55-60%左右。申请人继而反复进行了不同条件下的孵化率对比试验、经深入研究，从而确认龙虾离体虾卵孵化过程中，水霉病是影响虾卵孵化率危害性极大的病害，而且该病具有强烈的传染性，一旦有一个虾卵得病，就会传染给与其相邻的其它虾卵而得水霉病导致死亡，从而导致龙虾的人工孵化率明显降低。
发明内容
本发明提出了一种克氏原螯虾离体虾卵单体孵化方法及其该方法所使用的隔离孵化内床，目的在于通过降低虾卵密度、减少虾卵相互接触，以防止病害的蔓延，保证虾卵的正常孵化，提高龙虾的人工孵化率。
本发明方法的技术解决方案：
本发明方法的步骤是；对抱卵虾进行消毒处理：实施亲虾与卵的分离：对虾卵进行着床孵化，而所述的对虾卵进行着床孵化是将虾卵在同样的孵化条件下，隔离成一卵一室的单体孵化方式。
本发明所称的隔离孵化内床，设置于克氏原螯虾卵人工孵化装置的复合孵化床内，复合孵化床由不透水的外床和透水的内床组成，所述隔离孵化内床为透水的内床，隔离孵化内床设有隔离孵化内床片，隔离孵化内床片由上床片和下床片组成，上、下床片之间设有单体虾卵孵化室。
所述的隔离孵化内床由多层隔离孵化内床片在水体中作上下叠加构成。
所述的上床片上设有多个下凸窝、下床片上设有多个下凹窝，下床片的下凹窝与上床片的下凸窝相对应设置，且下床片下凹窝的下凹深度大于上床片下凸窝向下凸出的高度，下凹窝与下凸窝相扣合之间所形成的空间即为所述的单体虾卵孵化室。
所述的单体虾卵孵化室紧密均匀地排列在隔离孵化内床片中。
所述的隔离孵化内床片的上、下床片为丝网结构，网孔径小于单体虾卵径。
所述的隔离孵化内床片的对称的侧边或床片的四角边设有扣件，扣件系于设置于复合孵化床内的固定杆上。
本发明的有益效果
（一）本发明设置的单体虾卵孵化室为每一个虾卵提供单独孵化的空间，虾卵相互之间不接触，减少病害发生，如发现有一个虾卵得病，即可将病卵所在的隔离孵化内床片取出，及时剪掉病卵的单体孵化室，然后再将取出的隔离孵化内床片放入隔离孵化内床中，是防止病害传染蔓延的有效措施。
（二）本发明隔离孵化内床片在水体中作上下叠加置于复合孵化床内，形成立体式孵化，充分利用了水体空间，比仅在复合孵化床底放置一层虾卵颗粒的孵化数量增加许多倍。
（三）本发明方法简单易行，经试验在同等条件下，孵化率可提高10-15%左右。
附图说明
附图为本发明隔离孵化内床置于复合孵化床内的结构示意图。
具体实施方式
如图所示，
本发明的隔离孵化内床1设置于复合孵化床2内，该隔离孵化内床由多层隔离孵化内床片3在水体4中作上下叠加构成，隔离孵化内床片由上床片31和下床片32组成，上、下床片之间设有单体虾卵孵化室5，虾卵6置于单体虾卵孵化室内。隔离孵化内床片设有扣件33可与复合孵化床内所设的固定杆21连接。另，隔离孵化内床片的上、下床片及单体虾卵孵化室设有的致密透水网孔图中未表示。
综上，本发明可达到预期的发明目的。

Claims (7)

1.克氏原螯虾离体虾卵单体孵化方法，其步骤为对抱卵虾进行消毒处理：实施亲虾与卵的分离：对虾卵进行着床孵化，其特征在于：所述的对虾卵进行着床孵化是将虾卵在同样的孵化条件下，隔离成一卵一室的单体孵化方式。
2.克氏原螯虾离体虾卵单体孵化的隔离孵化内床，设置于克氏原螯虾卵人工孵化装置的复合孵化床内，其特征在于：所述隔离孵化内床设有隔离孵化内床片，隔离孵化内床片由上床片和下床片组成，上、下床片之间设有单体虾卵孵化室。
3.根据权利要求2所述的克氏原螯虾离体虾卵单体孵化的隔离孵化内床，其特征在于：所述隔离孵化内床为透水的内床，该内床由多层隔离孵化内床片在水体中作上下叠加构成。
4.根据权利要求2所述的克氏原螯虾离体虾卵单体孵化的隔离孵化内床，其特征在于：所述的上床片上设有多个下凸窝、下床片上设有多个下凹窝，下床片的下凹窝与上床片的下凸窝相对应设置，且下床片下凹窝的下凹深度大于上床片下凸窝向下凸出的高度，下凹窝与下凸窝相扣合之间所形成的空间即为所述的单体虾卵孵化室。
5.根据权利要求2所述的克氏原螯虾离体虾卵单体孵化的隔离孵化内床，其特征在于：所述的单体虾卵孵化室紧密均匀地排列在隔离孵化内床片中。
6.根据权利要求2或4所述的克氏原螯虾离体虾卵单体孵化的隔离孵化内床，其特征在于：所述的隔离孵化内床片的上下床片为丝网结构，网孔径小于单体虾卵径。
7.根据权利要求2所述的克氏原螯虾离体虾卵单体孵化的隔离孵化内床，其特征在于：所述的隔离孵化内床片的对称的侧边或床片的四角边设有扣件，扣件系于设置于复合孵化床内的固定杆上。
CN2010105068233A 2010-10-14 2010-10-14 克氏原螯虾离体虾卵单体孵化方法及其隔离孵化内床 Expired - Fee Related CN101946740B (zh)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356758A (zh) * 2011-09-19 2012-02-22 中国水产科学研究院淡水渔业研究中心 一种秀丽白虾虾卵离体批量孵化装置
CN103960182A (zh) * 2014-04-28 2014-08-06 江苏省海洋水产研究所 一种应用虾卵离体培养建立脊尾白虾家系的方法
CN107361002A (zh) * 2017-09-21 2017-11-21 江苏盱眙满江红龙虾产业园有限公司 一种克氏原螯虾虾卵离体培养方法
CN107751076A (zh) * 2017-10-31 2018-03-06 兰志祥 一种红螯螯虾离体孵化装置
CN111280096A (zh) * 2020-04-01 2020-06-16 江苏省淡水水产研究所 一种克氏原螯虾着床装置及其孵化方法
CN112602662A (zh) * 2020-12-30 2021-04-06 扬州大学 一种克氏原螯虾孵化装置

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US4998505A (en) * 1988-09-29 1991-03-12 Jordan Fred P Salmonid egg incubator
CN101213950A (zh) * 2008-01-16 2008-07-09 淮阴师范学院 克氏原螯虾卵离体培育技术
CN201595081U (zh) * 2009-12-25 2010-10-06 淮阴师范学院 虾蟹单个体养殖***

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US4214551A (en) * 1978-07-10 1980-07-29 Oregon Aqua-Foods, Inc. Fish egg supporting system
US4998505A (en) * 1988-09-29 1991-03-12 Jordan Fred P Salmonid egg incubator
CN101213950A (zh) * 2008-01-16 2008-07-09 淮阴师范学院 克氏原螯虾卵离体培育技术
CN201595081U (zh) * 2009-12-25 2010-10-06 淮阴师范学院 虾蟹单个体养殖***

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356758A (zh) * 2011-09-19 2012-02-22 中国水产科学研究院淡水渔业研究中心 一种秀丽白虾虾卵离体批量孵化装置
CN103960182A (zh) * 2014-04-28 2014-08-06 江苏省海洋水产研究所 一种应用虾卵离体培养建立脊尾白虾家系的方法
CN107361002A (zh) * 2017-09-21 2017-11-21 江苏盱眙满江红龙虾产业园有限公司 一种克氏原螯虾虾卵离体培养方法
CN107751076A (zh) * 2017-10-31 2018-03-06 兰志祥 一种红螯螯虾离体孵化装置
CN111280096A (zh) * 2020-04-01 2020-06-16 江苏省淡水水产研究所 一种克氏原螯虾着床装置及其孵化方法
CN112602662A (zh) * 2020-12-30 2021-04-06 扬州大学 一种克氏原螯虾孵化装置

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