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A method for preparing a new strain of Hong Kong oyster concave shell by using concave shell virtual index method

A technology of Hong Kong oysters and new strains, applied in application, climate change adaptation, fish farming, etc., can solve problems such as poor regularity of oyster shells

Active Publication Date: 2021-03-09
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with Pacific oysters, Fujian oysters, etc., Hong Kong oysters are more valuable, but the shell shape of Hong Kong oysters is very poor, and the market requires new oyster varieties with regular shell shapes and high meat yields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a new strain of Hong Kong oyster concave shell by utilizing the concave shell virtual index method, comprising the following steps:

[0023] 1. Establishment of the basic population of deep concave shell oysters: After analyzing the genetic structure characteristics of the population using microsatellite molecular marker technology, the main distribution areas of Hong Kong oysters were divided into western Guangdong population (Jiangmen), western Guangdong population (Zhanjiang), and eastern Guangdong population ( Shantou), Guangxi population (Qinzhou), Fujian population (Dongshan), Hainan population (Wanning), respectively selected 1,000 individuals aged 2-3 from the above populations, and constructed 6 basic breeding populations.

[0024] 2. Construct the calculation method of the virtual index of the concave shell, the virtual index of the concave shell = (full weight g - double shell weight g) ÷ right shell weight g.

[0025] 3. According to t...

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PUM

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Abstract

The invention discloses a method for preparing a new line of deeply concave shell type crassostrea hongkongensis by a virtual index polymerization process. The method comprises the following steps: 1)establishing base breeding groups of deeply concave shell type crassostrea hongkongensis; 2) calculating a concave shell coefficient by a virtual value replacement method; 3) carrying out group breeding on each base breeding group by a composite weighted index method to construct F1 generation core breeding groups; 4) screening a certain quantity of male and female crassostrea hongkongensis withthe highest indexes from each core group to establish an F2 generation half-sib family; 5) hybridizing parents with the highest polymerization indexes to obtain an F3 generation family; 6) hybridizingparents with the highest secondary polymerization indexes to obtain an F4 generation family; and 7) selecting a certain quantity of individuals from each family through composite weighted indexes for mixed group hybridization to obtain an F5 generation family, and then, carrying out subculture to obtain the new line of the deeply concave shell type crassostrea hongkongensis.

Description

technical field [0001] The invention relates to the technical field of shellfish breeding in marine agriculture, in particular to a method for preparing a new Hong Kong oyster concave shell strain by using the concave shell virtual index method. Background technique [0002] Hong Kong oyster (Crassostrea hongkongensis) is the main economic species cultured in the coastal areas of South my country. It likes to live near estuaries or places with fresh water injection. It is mainly distributed in Guangdong, Guangxi and other places, with an annual output of more than 1.7 million tons and an output value of 30 billion. Yuan (China Fishery Yearbook, 2019). Compared with other types of oysters, the value of Hong Kong oysters is mainly reflected in their large body, fat meat, and delicious taste. In addition, their market value is much higher than that of other types of oysters, and they are favored by consumers in Guangdong, Guangxi, Hong Kong, Macao, and Southeast Asian countries ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54A01K67/027
CPCA01K67/027A01K2227/40A01K61/54Y02A40/81
Inventor 肖述喻子牛张跃环向志明
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI