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Hybrid seedlings-cultivating method between Chinese stichopus japonicus and Japan black stichopus japonicus

A technology of japonicus and blackthorn, which is applied in the field of crossbreeding seedlings of Chinese japonicus and Japanese black japonicus, can solve the problems of low survival rate and long breeding cycle, and achieve the effect of simple and easy process and easy operation

Inactive Publication Date: 2011-06-29
SHANDONG HAIYIBAO AQUATIC PROD
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Problems solved by technology

According to the theory of hybrid superiority, we use Chinese sea cucumbers to crossbreed with Japanese black sea cucumbers to breed sea cucumber varieties with good quality, fast growth, low temperature resistance and strong disease resistance, which can overcome the long-term low temperature in the process of sea cucumber cultivation. Causes the problems of long breeding cycle and low survival rate

Method used

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Embodiment Construction

[0007] A kind of method for crossbreeding sea cucumber seedlings, during operation at first select the sea cucumber (body weight more than 300g) of sea area of ​​China that body is plump, no trauma, no viscera and Japanese black sea cucumber (body weight more than 300g) of sea area of ​​Hokkaido, Japan as Seed ginseng, through technical measures such as artificial heating to promote ripening, baiting, etc., to simultaneously promote the ripening of Chinese sea cucumber and Japanese black sea cucumber, and then use the method of drying in the shade for 1 hour and raising the temperature by 2-3°C to induce spawning, and artificially lay eggs separately and ejaculation, respectively collecting the eggs produced by the female Chinese sea cucumber and the sperm produced by the male Japanese red sea cucumber, or separately collecting the sperm produced by the male Chinese sea cucumber and the eggs produced by the female Japanese red sea cucumber, under artificial conditions One-to-on...

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Abstract

The application relates to a hybrid seedlings-cultivating method of the stichopus japonicus. The method comprises the steps of: firstly taking the stichopus japonicus in the China sea area and the black stichopus japonicus in the Japan northern sea area as the bred stichopus japonicus, and synchronously fertilizing the bred stichopus japonicus of the China stichopus japonicus and the bred stichopus japonicus of the Japan stichopus japonicus by controlling the cultivating water temperature and the bait feeding quantity of the bred stichopus japonicus in the process of artificial fertilizing and cultivating; artificially spawning and discharging sperm under the oxytocic condition of drying in the shade and warming, and respectively collecting the ovum from the Chinese stichopus japonicus and the sperm from the Japan black stichopus japonicus or the sperm from the Chinese stichopus japonicus and the ovum from the Japan black stichopus japonicus for the aritificial exomixis; and performing the incubation and the seedlings cultivation to the oosperm which is generated by hybridizing the two different geographical colonies which are reproductively isolated from each other according to the normal mode for cultivating the seedlings of the stichopus japonicus so as to cultivate the hybrid stichopus japonicus seedlings.

Description

technical field [0001] The invention relates to a method for hybrid seedling cultivation of sea cucumber, in particular to a method for hybrid seedling cultivation of Chinese sea cucumber and Japanese black sea cucumber. Background technique [0002] Sea cucumber (Stichopus japonicus) is mainly distributed in Liaoning, Shandong, Hebei and other coastal areas of my country. It is a traditional rare marine treasure. 10,000 mu, with an output value of more than 10 billion yuan, has become one of the advantageous industries in aquaculture in our province. However, Chinese sea cucumber species are poorly tolerant to low temperatures. During the nearly three-month winter, sea cucumbers hardly grow, which prolongs the cultivation cycle of sea cucumbers. [0003] In Japan, there are three strains of natural sea cucumbers: red sea cucumber, black sea cucumber and green sea cucumber. Black sea cucumber is mainly distributed in the waters around Hokkaido, Japan. Black sea cucumber is...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 赵婷高翔风
Owner SHANDONG HAIYIBAO AQUATIC PROD
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