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Method for improving spawning efficiency of holothuria leucospilota through continuous stimulation

A technology of sea cucumber yuzu and high efficiency is applied in the field of improving the spawning efficiency of sea cucumber, and can solve the problems of limiting the large-scale seedling raising technology of sea cucumber and low spawning efficiency of sea cucumber.

Active Publication Date: 2019-01-18
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to obtain high-quality fertilized eggs of sea cucumber yuzu on a large scale is one of the problems in solving the multiplication technology of sea cucumber yuzu. There is a sufficient amount of sea cucumber sperm, but it is found that the spawning efficiency of sea cucumber yuzu is low, and only a small amount of fertilized eggs of sea cucumber yuzu can be obtained, which limits the development of large-scale breeding technology of sea cucumber yuzu in the next step

Method used

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  • Method for improving spawning efficiency of holothuria leucospilota through continuous stimulation

Examples

Experimental program
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Effect test

Embodiment 1

[0016] a. Handling of ginseng: In August 2018, 56 wild sea cucumbers with a body length of more than 20cm were collected from the bottom of the seabed with reefs in the natural sea area of ​​Sanya, Hainan as a prepared ginseng group. At this time, it is impossible to determine the sex of ginseng. The parent ginseng is subjected to starvation treatment, and the silt and other excrement discharged by the ginseng is cleaned up in time 4 times a day, and the water is changed 100% until the water body is clean and free of sediment excrement, so that the parent ginseng does not produce excrement pollution during sperm production or spawning fertilized egg;

[0017] b. Drying in the shade to induce labor: transfer the yuzu sea cucumbers in step a to an anhydrous bucket, keep the sea cucumbers scattered and not overlap each other, dry them in the shade for 2.0 hours, and then add seawater to 1.0m deep;

[0018] c. Separation of male and female ginseng: After adding seawater for 2 hou...

Embodiment 2

[0023] a. Handling of ginseng: In September 2018, wild sea cucumbers with a body length of more than 20cm were collected in the seabed with reefs in the natural sea area of ​​Sanya, Hainan as a preparatory ginseng group. At this time, it is impossible to determine the sex of ginseng. Carry out starvation treatment, clean up the silt and other excrement discharged by the ginseng 4 times a day, and change the water 100% until the water body is clean and free of silt excrement, so that the ginseng does not produce excrement to pollute the fertilized eggs during sperm production or spawning ;

[0024] b. Drying in the shade to induce production: transfer the yuzu sea cucumbers in step a to a water-free bucket, keep the sea cucumbers scattered and not overlap each other, dry them in the shade for 2.5 hours, and then add seawater to 1.2m deep;

[0025] c. Separation of male and female ginseng: After adding seawater for 2 hours in step b, the ginseng climbs above the water surface, ...

Embodiment 3

[0029] a. Handling of ginseng: In June 2018, wild sea cucumbers with a body length of more than 20cm were collected from the bottom of the natural sea area with rocks in Sanya, Hainan as a preparatory ginseng group. At this time, it is impossible to determine the sex of ginseng. Carry out starvation treatment, clean up the silt and other excrement discharged by the ginseng 4 times a day, and change the water 100% until the water body is clean and free of silt excrement, so that the ginseng does not produce excrement to pollute the fertilized eggs during sperm production or spawning ;

[0030] b. Drying in the shade to induce labor: transfer the yuzu sea cucumbers in step a to an anhydrous bucket, keep the sea cucumbers scattered and not overlap each other, dry them in the shade for 2.0 hours, and then add seawater to 0.7m deep;

[0031] c. Separation of male and female ginseng: After adding seawater for 2 hours in step b, the ginseng climbs above the water surface, and when i...

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Abstract

The invention discloses a method for improving the spawning efficiency of holothuria leucospilota through continuous stimulation. By means of the operation of the steps of parent holothurian treatment, drying in the shade and parturition hastening, male and female parent holothurian separation, continuous stimulation and the like, the spawning efficiency of tropical female holothuria leucospilotais improved, sufficient holothuria leucospilota fertilized ova are obtained, and large-scale cultivation of tropical holothuria leucospilota fry is possible. The method is easy to operate, low in requirement on equipment and suitable for popularization, and provides technical support for holothuria leucospilota transplanting and proliferating and commercial application.

Description

Technical field: [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for improving the spawning efficiency of sea cucumber yuzu by continuous stimulation. Background technique: [0002] In recent years, due to the intensification of human activities, the tropical coral reef ecosystem in the South China Sea has been deteriorating day by day, the biodiversity of coral reefs has declined sharply, and the phenomenon of "desertification" has even appeared in some seabed areas. The transplantation and proliferation of coral reef organisms can speed up the restoration and reconstruction of the seabed ecosystem. It is one of the effective ways to restore the biodiversity of coral reef ecosystems and protect the health and sustainability of coral reefs. It is of great significance to maintain the steady state security of islands and reefs. [0003] Sea cucumbers mainly feed on organic debris in the seabed sediment, which can accel...

Claims

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Application Information

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IPC IPC(8): A01K61/30A01K61/17
CPCA01K61/17A01K61/30Y02A40/81
Inventor 黄文刘锦上于宗赫程楚杭任春华胡超群
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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