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Standardized breeding method for young holothuria leucospilota

A technology of sea cucumber and cultivation method, which is applied in the field of cultivation of standardized sea cucumber seedlings, can solve the problems of unscientific feeding of bait, difficult regulation of water quality, and easy pollution of algae bait, and achieves the effect of preventing the failure of seedling cultivation.

Active Publication Date: 2021-07-02
SOUTH CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method to carry out artificial breeding of Yuzu sea cucumber is simple and easy to operate, and can effectively overcome the difficulty in regulating water quality, frequent occurrence of harmful organisms, easy contamination of unicellular algae bait and unstable output, and bait feeding during seedling cultivation. A series of problems such as unscientific, to realize the efficient breeding of Yuzu sea cucumber seedlings, has a very broad application space in the field of artificial breeding and multiplication of tropical sea cucumbers

Method used

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  • Standardized breeding method for young holothuria leucospilota
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  • Standardized breeding method for young holothuria leucospilota

Examples

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Embodiment 1

[0041] Embodiment 1 Yuzu sea cucumber artificial breeding

[0042] On August 16, 2020, an artificial breeding experiment of Yuzu sea cucumber was carried out at the Daya Bay Marine Biological Comprehensive Experimental Station of the Chinese Academy of Sciences in Shenzhen. The relevant process is as follows:

[0043] Water quality control: The natural seawater used for seedling cultivation is taken from the sea area near the experimental station. After monitoring, the content of various pollutants is lower than the second-class seawater quality standard. The extracted seawater is sand filtered and then filtered with a 5 micron filter bag ( figure 1 ). Due to the low content of pollutants such as bacteria in the local seawater, no ultraviolet disinfection treatment was carried out. During the experiment, the salinity range of the treated seawater is 29-33, and the temperature range is 28-31°C, thus obtaining the treated seawater.

[0044] Ginseng induction method: Yuzu sea...

Embodiment 2

[0056] The influence of embodiment 2 salinity on Yuzu sea cucumber seedling raising effect

[0057] After Example 1, on September 20, 2020, a new batch of fertilized eggs of sea cucumber yuzu was obtained by artificial induction of labor, and continued to be cultivated according to the method described in the present invention. The continuous rainfall around September 30 caused the salinity of the seawater to drop to about 24.5. However, due to the negligence of the workers, the low-salt seawater was added to the nursery pond without the salinity measurement, which directly caused the batch of Yuzu sea cucumber seedlings to be severely deformed. , fester (see Figure 10 ), and finally this seed breeding ended in failure. The breeding period of Yuzu sea cucumber coincides with the rainy season, so effective preventive measures must be taken against salinity shocks in practice.

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Abstract

The invention discloses a standardized breeding method for young holothuria leucospilota. Standardized management is carried out on each key step in a breeding process of young holothuria leucospilota, including water quality control, pest and disease organism prevention and control, unicellular algae bait cultivation, artificial spawning induction, youngholothuria leucospilota feeding and the like, such that stability and high yield of young holothuria leucospilota are ensured. Water for breeding is filtered by a microporous filter bag, such that tiny particles such as eggs in seawater can be further removed and outbreak of harmful organisms is completely eradicated from the source. A full-artificial environment is used for culturing unicellular algae. Chaetoceros in the culture method does not depend on natural illumination, can continuously and rapidly grow all day long, can be prevented from being damaged by wind, rain, high temperature and the like in outdoor culture, can also be prevented from being harmed by protozoa and other enemies, can stably provide fresh and live unicellular algae baits for young holothuria leucospilota, and does not introduce diseases / enemies even if being directly fed.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and more specifically relates to a method for cultivating standardized yuzu sea cucumber seedlings. Background technique [0002] Yuzu sea cucumber is widely distributed in the shallow waters near the coast of tropical and subtropical seas. The sea cucumber has certain economic value and is the traditional fishery target of many Pacific island countries. Yuzu sea cucumber is rich in natural active substances such as polysaccharides and saponins, and has high medicinal value. Studies have shown that sea cucumbers play an important role in the seabed ecosystem. They can reduce the organic matter content of sediments through physiological activities such as feeding and excretion, and increase the nutrient flux and dissolved oxygen exchange rate at the sediment and hydrolysis interface. , the polyculture of Yuzu sea cucumber with fish and shrimp and other cultured animals can effectively regulat...

Claims

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Application Information

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IPC IPC(8): A01K61/30C12N1/12C12R1/89
CPCA01K61/30C12N1/12
Inventor 于宗赫孙红岩周磊洪泽森涂游凯
Owner SOUTH CHINA AGRI UNIV
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