Hybrid breeding method for stichopus japonicus

A technology of sea cucumber and parent ginseng, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of long breeding cycle of parent ginseng, single means of promoting ripening, artificial induction of labor to stimulate the slow ovulation of parent ginseng of sea cucumber, etc. The effect of saving cultivation cost, fast growth, strong disease resistance and resistance to environmental mutation

Inactive Publication Date: 2009-12-23
SHANDONG HOMEY AQUATIC DEV
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art of single gonadal maturation-promoting means for A. japonicus ginseng, a long cultivation period for A. japonicus, and slow ovulation of A. japonicus by artificial ox

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Utilize Korean male japonicus and Chinese female japonicus to carry out hybrid breeding, its steps are as follows:

[0018] a. At the end of February and the beginning of March of that year, the female sea cucumbers from the Chinese sea area and the male sea cucumbers from the Korean sea area were harvested and put into the pool respectively as the parent fish. Apostichopus japonicus is cultivated at a constant temperature at 12-14°C. The bait used for feeding during the cultivation period is to add egg yolk and sweet potato powder to the existing breeding bait including seaweed powder, compound feed, sea mud and sea cucumber vitamins. In order to ensure that the gonads of Chinese sea cucumbers and Korean sea cucumbers mature synchronously, the proportion of nutrients and maturation-promoting substances in the bait used for feeding the sea cucumbers should be controlled respectively. In the present embodiment, the bait for cultivating and feeding Korean sea cucumber gi...

Embodiment 2

[0024] Utilize Chinese male sea cucumber and Korean female sea cucumber to carry out hybrid breeding, and its steps are as follows:

[0025] a. At the end of February and the beginning of March of that year, the male sea cucumbers from the Chinese sea area and the female sea cucumbers from the South Korean sea area were collected and put into the pool respectively as parent fish. Apostichopus japonicus is cultivated at a constant temperature at 12-14°C. The bait used for feeding during the cultivation is the maturation-promoting bait added with egg yolk and sweet potato powder in the existing breeding bait including seaweed powder, compound feed, sea mud and sea cucumber vitamins. In order to ensure that the gonads of Chinese sea cucumbers and Korean sea cucumbers mature synchronously, the proportion of nutrients and maturation-promoting substances in the bait used for feeding the sea cucumbers should be controlled respectively. In the present embodiment, the bait for cultiva...

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Abstract

The invention relates to a hybrid breeding method for stichopus japonicus, comprising the following steps: selecting stichopus japonicus in China sea areas and in Korea sea areas as parental stichopus japonicus, respectively controlling breeding water temperature, times and time of feeding of the parental stichopus japonicus in an artificial culture, and adding yolk and pachyrhizus powder of different amounts for stimulating gonadogenesis in breeding bait containing alga powder, compound feed and holothurian vitamin to enable synchronous maturity of gonads of the parental stichopus japonicus; stimulating the parental stichopus japonicus by a shade-drying running water stimulating method, a temperature differential method and an artificial induced spawning method combined with a method of using spermia to stimulate ovum, to induce the oviposition and the spermiation of the parental stichopus japonicus; and respectively collecting the ovum and the spermia of the parental stichopus japonicus; carrying out reciprocal hybridizations to produce oosperm; and breeding according to a conventional method. The stichopus japonicus sprout cultured by the method has high survival rate, fast growth rate, good stress resistance, and strong ability of resisting mechanical damage. The process is easy and convenient, and can be operated easily, effectively shortens the period of breeding the stichopus japonicus and saves the breeding cost.

Description

technical field [0001] The invention relates to a sea product seedling raising method, in particular to a sea cucumber hybrid seedling raising method. Background technique [0002] In my country, the artificial seedlings of sea cucumbers mostly collect the same species of sea cucumbers from the same sea area or near the sea area as relatives. After years of inbreeding, the traits of sea cucumbers degrade rapidly, manifested as decreased disease resistance, slow growth, dark body color, Body wall thinning etc. In order to prevent the germplasm degradation of japonicus and ensure the sustainable development of japonicus aquaculture, sea cucumbers that are far away from each other, in different sea areas, and have great differences in morphological characteristics are used for distant hybrid seedling breeding, which is to solve the problem of japonicus traits. The fundamental means of degeneracy problems. For example, on October 10, 2007, the authorized announcement CN10034140...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 谭福祎唐聚德张术森孙永军
Owner SHANDONG HOMEY AQUATIC DEV
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