A kind of seed production method of Portuguese oyster fast-growing breeding line

A Portuguese oyster and fast-growing technology, which is applied in the field of seed production of Portuguese oyster fast-growing breeding lines, can solve problems affecting oyster breeding yield and quality, economic traits decline, germplasm degradation, etc., so as to improve breeding production and economic benefits , Easy to operate, strong anti-stress effect

Active Publication Date: 2018-05-08
FISHERIES RES INST OF FUJIAN
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AI Technical Summary

Problems solved by technology

However, with the increase of Portuguese oyster breeding area year by year, germplasm degradation also occurs, mainly manifested in the continuous decline of economic traits such as miniaturization of breeding individuals and slow growth, which affects the production and quality of oyster farming

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0023] A kind of seed production method of Portuguese oyster fast-growing breeding line, comprises the steps:

[0024] (1) In the first ten days of September 2008, individuals over 2 years old, regular in shell shape, and above 10 cm in shell height were selected from Portuguese oyster culture groups in four geographical groups (Zhaoan, Fujian, Ningde, Zhangpu, and Shenzhen, Guangdong), and all selected individuals were measured. 400 male and female individuals of the top 5% of the total weight were taken as broodstock;

[0025] (2) Dissect the parent shellfish, wash the eggs and semen after distinguishing male and female by gonad smears, and filter out impurities with a 300-mesh sieve, collect the sperm and eggs of the above-mentioned parent shellfish, and use group selfing and individual selfing to establish several Group breeding line and family line, the selfing of the group is to take 50 male and female broodstock, and mix and mate their eggs and sperm;

[0026] (3) Plac...

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Abstract

The invention discloses a seed production method for Portugal oyster quick-growing seed selection. Full weight of the Portugal oysters work as a seed selection target, the first 5% to 6% of full weight of male and female individuals are selected from a plurality of Portugal oyster individual with different geographical groups for breeding parent clams; through continuous generations of oriented seed selection, high-quality oysters with fast growing speed and strong stress resistance as well as high survival rate can be screened. In the seed production method, the Portugal oyster full weight works as the seed selection target and group seed selection and family seed selection technologies are employed to breed Portugal oyster types with fast growing speed, strong stress resistance and high survival rate; an important role is played for Portugal oyster cultivation output and economic benefit improvements; and a foundation is laid for Portugal oyster new type development and genetic improvement.

Description

technical field [0001] The invention belongs to the technical field of aquatic genetics and breeding, and in particular relates to a seed production method of a Portuguese oyster fast-growing breeding line. Background technique [0002] Oyster is an important marine economic organism. It has delicious meat and high nutritional value. It is an important marine aquaculture object in all countries in the world, and it is also the economic shellfish with the largest aquaculture output in China and the world. Portuguese oyster (Crassostrea angulata) is one of the main cultured oyster species in my country. Its main breeding place is in Fujian. In 2012, the Portuguese oyster culture area in Fujian Province reached 35,297 hectares, with an output of 1.4764 million tons. The culture area and output accounted for 27.12% of the national oyster culture. and 37.39%; aquaculture production accounts for 44.38% of Fujian's marine aquaculture production and 65.63% of shellfish aquaculture pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCY02A40/81
Inventor 曾志南宁岳祈剑飞巫旗生
Owner FISHERIES RES INST OF FUJIAN
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