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 effects of high survival rate, fast growth speed and strong adaptability

Inactive Publication Date: 2007-10-10
DALIAN FISHERIES UNIVERSITY
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  • 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. One to two months before the gonads of Chinese sea cucumbers, that is, from March to May of the year, the sea cucumbers from the sea area of ​​China are collected and put into the pond, and cultivated at a constant temperature under the condition that the temperature does not exceed 13-15°C. During the constant temperature cultivation period, it can be fed with mud liquid made of seaweed powder mixed with organic sand, or synthetic bait containing mussel powder, shrimp powder, soybean milk, etc., until the gonads mature. At this time, the gonad maturation period of the artificially cultivated sea cucumbers is later than that of the Chinese sea cucumbers in natural sea areas, and it usually matures at the same time as the gonads of the normal growing sea cucumbers in the Russian Far East (Korean Peninsula) in August and September every year. .

[0024] b. Drain the seawater in the ponds where Chinese sea cucumbers and Russian Far East Sea cucumbers are stored, usually...

Embodiment 2

[0029] a. Harvest sea cucumbers from the Russian Far East (Korean Peninsula) sea area in December of the current year or January of the following year, and put them into the pool, and cultivate them at a constant temperature under the condition that the temperature does not exceed 13-15°C. During the constant temperature cultivation period, it can be fed with mud liquid made of seaweed powder mixed with organic sediment, and synthetic bait containing mussel powder, shrimp powder, soybean milk, etc. can also be put in. The accumulated temperature reaches 1200-1600°C, and the gonads are mature. At this time, the artificially cultivated sea cucumbers of the Russian Far East Sea have earlier maturation of the gonads than those of the Russian Far East sea sea cucumbers in natural seas. The gonads of normal growing Chinese sea cucumbers matured at the same time. According to the gonad maturity of A. japonicus in the Russian Far East Sea, the A. japonicus from different regions in th...

Embodiment 3

[0035] a. make its gonad mature simultaneously with the method of embodiment 1 or embodiment 2;

[0036] b. Oxygenation is induced by immersion in ultraviolet seawater. The specific method is to first irradiate seawater with an ultraviolet lamp with a power of 30-100 watts, and the irradiation dose is 100-200mw h / l, and then soak the sea cucumbers in it until spawning or ejaculation; the seawater can be static Or flow, if it is flowing water, the water flow rate can be 10 liters per minute, irradiate in a cycle for 1 hour, then put the sea cucumbers in it and soak until they spawn or ejaculate, and then move them to normal sea water. It is best to fully aerate while the ultraviolet rays are irradiating the seawater in a circular manner, so that the amount of gas dissolved in the water is sufficient. After spawning or ejaculation, the eggs or sperm of Chinese sea cucumbers and the sperm or eggs of sea cucumbers in the Russian Far East Sea were collected respectively.

[0037]...

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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 japonicus, in particular to a method for hybridizing seedlings of japonicus. Background technique: [0002] At present, there are about 20 kinds of edible sea cucumbers recorded in my country, and sea cucumber described in the present invention is also called imitation sea cucumber (Apostichopus japonicus (Selenka) or Stichopus japonicus Selenka) is one of them, produced in my country's 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 cucumber is very high, especially sea cucumbers in Liaoning, Shandong and other places in my country have the highest value. It is recorded in "Compendium of Materia Medica Supplements" edited by Zhao Xuemin in the late Qing Dynasty: "The body color of sea cucumbers produced in Liaodong is dark brown. The glutinous and thorny me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/033
Inventor 常亚青
Owner DALIAN FISHERIES UNIVERSITY
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