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Hybrid breeding method for sea cucumber

A technology of japonicus and ginseng, which is applied in animal husbandry and other fields, can solve the problems of low survival rate and poor stress resistance of seedlings, and achieve the effect of high survival rate, fast growth speed and more spines

Inactive Publication Date: 2005-02-23
DALIAN FISHERIES UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the technical problems of poor stress resistance and low survival rate of seedlings existing in self-bred sea cucumbers in the prior art, and provides a method for cultivating sea cucumber hybrid seedlings with strong stress resistance and strong vitality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] a. 1 to 2 months before the gonads of Chinese sea cucumbers, that is, from March to May of that year, collect sea cucumbers from the seas of China into the pond and cultivate them at a constant temperature at a temperature not exceeding 13-15°C. During the constant temperature incubation period, it can be fed with a mud made of seaweed powder mixed with organic silt, and synthetic bait containing mussel powder, shrimp powder, soy milk, etc. can be added until the gonads are mature. At this time, the gonad maturity of artificially cultivated Chinese sea cucumbers is lagging behind that of Chinese sea cucumbers in natural seas, usually in August to September each year, and mature at the same time as the gonads of sea cucumbers in the seas of the Russian Far East (Korean Peninsula) that grow normally. .

[0024] b. Drain the seawater in the storage ponds for the Chinese sea cucumbers and Russian Far East sea cucumbers, usually after evening, and let the sea cucumbers dry for 4...

Embodiment 2

[0029] a. In December of the year or January of the following year, sea cucumbers from the seas of the Russian Far East (Korean Peninsula) were collected and cultivated at a constant temperature under the condition that the temperature did not exceed 13-15℃. During the constant temperature incubation period, it can be fed with a mud made of seaweed powder mixed with organic silt, and synthetic bait containing mussel powder, shrimp powder, soy milk, etc. can also be added. When the accumulated temperature reaches 1200~1600℃, the gonads are mature. At this time, the gonad maturity of the artificially cultivated sea cucumbers in the Russian Far East is earlier than the natural sea cucumbers in the Russian Far East, usually between May and July each year. The gonads of the normal-growing Chinese sea cucumber mature at the same time. According to the maturity of the gonads of the stichopus relatives in the Russian Far East seas, the stichopus stichopus in different regions in the Chine...

Embodiment 3

[0035] a. Use the method of Example 1 or Example 2 to make its gonads mature at the same time;

[0036] b. Use ultraviolet seawater immersion to induce labor. The specific method is to first irradiate seawater with an ultraviolet lamp with a power of 30-100 watts, with an irradiation dose of 100-200mw·h / l, and then soak the sea cucumbers in it until spawning or fertilization; the seawater can be static Or flowing. If it is flowing water, the water flow rate can be 10 liters / minute, and the irradiated cycle is 1 hour. After that, the sea cucumbers are soaked in them until spawning or ovulation, and then transferred to normal sea water. It is best to perform full aeration while irradiating the seawater with ultraviolet rays to make the amount of dissolved gas in the water sufficient. After spawning or fertilization, the eggs or sperm of the Chinese sea cucumbers and the sperm or eggs of the sea cucumbers of the Russian Far East are collected.

[0037] The other steps are the same as...

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Abstract

A hybridization method between Chinese spiny sea cucumber and Russian (or korean) one for preparing the hybrid one with high growth speed, stress resistance, survival rate and nutritive value includes such steps as using special culture technique to make them mature symultaneously, artificial oxytocia to obtain their spermatozoa and ova, artificial fertilization, and culturing fertilizer ova until they become laval plankton.

Description

Technical field: [0001] The invention relates to a method for raising seedlings of sea cucumbers, in particular to a method for raising seedlings of sea cucumbers by hybridization. Background technique: [0002] At present, there are about 20 kinds of edible sea cucumbers recorded in our country. The sea cucumbers described in the present invention are also called imitation sea cucumbers (Apostichopus japonicus (Selenka) or Stichopus japonicus Selenka), which are produced in Liaoning, Shandong, Hebei, etc. The northern coast and the northern coast of Japan, the Russian Far East, and the coast of the Korean Peninsula. The nutritional and medicinal value of sea cucumbers is very high, especially the sea cucumbers in Liaoning, Shandong and other places in my country have the highest value. There is a record in the "Compendium of Materia Medica Supplements" edited by Zhao Xuemin in the late Qing Dynasty: "The body color of sea cucumbers produced in eastern Liaoning is dark and brown....

Claims

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Application Information

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IPC IPC(8): A01K67/033
Inventor 常亚青
Owner DALIAN FISHERIES UNIVERSITY
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