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A kind of seed production method of Kumamoto oyster strain with double golden shell

A technology of golden-shelled Kumamoto and oysters, which is applied in the field of seed production of double-golden-shelled Kumamoto oyster strains, can solve the problems of lack of high-quality new varieties, and achieve golden appearance, speed up the breeding process, and high commodity value.

Active Publication Date: 2017-11-21
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that there are no high-quality new varieties in the current Kumamoto oyster industry, the present invention provides a seed production method of a double-golden-shelled Kumamoto oyster strain. Using this seed production method, not only golden shells with beautiful appearance and neat shell shape can be cultivated color strains, and it also provides an opportunity for the cultivation of new varieties

Method used

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Embodiment 1

[0017] a. Construction of the core basic group: In late May 2013, at the Zhanjiang Marine Economic Animal Experimental Station of the South China Sea Institute of Oceanology, Chinese Academy of Sciences, 6230 individuals of mature Zhanjiang wild Kumamoto oysters were used as the basic group, and the method of group self-propagation was adopted through the stimulation of shady trunk water Carry out the construction of the core base group, and produce a total of 120 million D-shaped larvae, which are placed in three 20m 3 In the cement pond, cultivate the Kumamoto oysters according to the gradual change of salinity in the coastal areas of South China. Specifically, the normally developed D-shaped larvae are cultivated in medium-high salinity seawater with a salinity of 20-25ppt in a slightly aerated manner. , do not change the water, the bait is mainly green Pavlova algae, mixed with yeast, and fed in a small amount and multiple times; when the eye point and foot extension stage ...

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Abstract

The invention discloses a seed production method of a double gold shell Crassostreasikameastrain. According to the invention, the characteristics of over-dominant expression of the double gold shell of the Crassostreasikamea are utilized in combination with the positive correlation principle between the gold shell and the beta-carotene content, and a 100% double gold shell Crassostreasikamea strain is obtained through the steps of core base group construction, double gold shell colony screening and double gold shell strain orientation purifying. The double gold shell Crassostreasikamea strain obtained in the invention has the advantages of stable heredity, gold appearance and high goods value. No exogenous gene is introduced; advantages like safety and nuisance free are provided, especially that the beta- carotene content is 1.8-3.0 times of common oysters. An approach to cultivate new species of Crassostreasikamea is provided, and new improved varieties for Crassostreasikamea breeding industry are provided.

Description

Technical field: [0001] The invention belongs to the field of shellfish genetics and breeding in marine biotechnology, and in particular relates to a seed production method of a double gold-shell Kumamoto oyster strain. Background technique [0002] Kumamoto oyster Crassostrea sikamea is native to Southeast Asia, including China, Korea, Japan and other places. It likes to live in saline waters in brackish water areas, and is distributed in the south of the Yangtze River in my country (including Nantong, Jiangsu), such as Zhejiang, Fujian, Guangdong, Guangxi, Hainan and other places. Although the individuals of Kumamoto oysters are small, they are delicious. In the United States, the price of a single live oyster is about twice that of long oysters and American oysters. In my country, Kumamoto oysters are also called oysters, yellow oysters, and iron oysters. The smallest, but most commercially exploitable oyster in the giant oyster genus. [0003] At present, the Yuziniu s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCY02A40/81
Inventor 喻子牛张跃环李军张扬秦艳平
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI