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A method to improve the spawning efficiency of Yuzu sea cucumber through continuous stimulation

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

Active Publication Date: 2020-07-28
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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  • A method to improve the spawning efficiency of Yuzu sea cucumber through continuous stimulation

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Experimental program
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Effect test

Embodiment 1

[0016] a. Pro-ginseng processing: In August 2018, 56 wild jade-foot sea cucumbers with a length of more than 20cm were collected from the seabed with reefs in the natural sea area of ​​Sanya, Hainan as a preparatory group. The ginseng undergoes starvation treatment. The silt and other excrements discharged from the ginseng are cleaned in time 4 times a day, and the water is changed 100% until the water body is clean and free of silt and sand, so that the ginseng does not produce fecal pollution during sperm or spawning Fertilized egg

[0017] b. Shade drying to induce labor: transfer the jade-foot sea cucumber parent ginseng in step a to an anhydrous bucket, keep the sea cucumbers dispersed and not overlap each other, and dry for 2.0h. After the parent ginseng is impacted by running water, continue to add sea water to 1.0m deep;

[0018] c. Separation of male and female ginseng: After adding sea water for 2 hours in step b, the ginseng climbs to the top of the water. When the gins...

Embodiment 2

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

[0024] b. Shade drying to induce labor: transfer the jade-foot sea cucumber parent ginseng in step a to an anhydrous bucket, keep the sea cucumbers dispersed and not overlap each other, dry in the shade for 2.5 hours, after the parent ginseng is impacted by running water, continue to add sea water to 1.2m deep;

[0025] c. Separation of male and female ginseng: After adding sea water for 2 hours in step b, t...

Embodiment 3

[0029] a. Pro-ginseng processing: In June 2018, wild jade-foot sea cucumbers with a body length of more than 20cm were collected from the seabed in the natural sea area with reefs in Sanya, Hainan as a prepared pro-ginseng group. At this time, it is impossible to determine the sex of the relatives. Carry out starvation treatment, clean up the excrement of the ginseng 4 times a day in time, and change the water 100%, until the water body is clean and free of silt and excrement, so that the ginseng does not produce sperm or spawning feces to pollute the fertilized eggs ;

[0030] b. Shade drying to induce labor: transfer the jade-foot sea cucumber parent ginseng in step a to an anhydrous bucket, keep the sea cucumbers dispersed and not overlap each other, and dry for 2.0 hours. After the parent ginseng is impacted by running water, continue to add sea water to 0.7m deep;

[0031] c. Separation of male and female ginseng: After adding sea water for 2 hours in step b, the ginseng clim...

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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 specifically relates to a method for improving the spawning efficiency of sea cucumbers with jade feet through continuous stimulation. Background technique: [0002] In recent years, due to the intensification of human activities, the tropical coral reef ecosystem of the South China Sea has been deteriorating, 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 accelerate the restoration and reconstruction of the submarine ecosystem. It is one of the effective ways to restore the biodiversity of the coral reef ecosystem and protect the health and sustainability of the coral reef. It is of great significance for maintaining the stability and safety of the island reef. [0003] Sea cucumbers mainly feed on organic debris in the seabed sediment, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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