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EPA content-increasing oyster breeding method and application thereof

An oyster and content technology, applied in application, climate change adaptation, fish farming, etc., can solve problems such as low nutritional quality of oyster farming, and achieve the effects of strong practicability, easy operation and price resolution

Inactive Publication Date: 2013-02-27
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a breeding method for increasing the EPA content of oysters. This breeding method effectively solves the problem of low nutritional quality of oyster culture in my country, provides a new way for the cultivation of high-value oyster varieties, and promotes the development of oysters in my country. Development of the farming industry

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0025] 1. Seed shell selection, pure species identification and gonadal maturation: In June 2010, 100 healthy, undamaged 1-year-old oysters were selected as seed shells from Shantou and Qingdao respectively. Firstly, 10 oysters were selected, and the pure species of oysters were identified by morphology and 16S sequencing. The results showed that the oysters cultured in Qingdao were Pacific oysters (Crassostrea gigas gigas, referred to as G), and the oysters cultured in Shantou were Portuguese oysters (Crassostrea gigas angulata , referred to as A), both belong to the species of Pacific oyster, both are pure species, but belong to different subspecies. These species of shellfish were naturally ripened in the sea area for half a month, and then moved indoors and placed in four 500L polyethylene barrels to artificially ripen the gonads by conventional heating methods. In about 10 days, the gonads of the two subspecies can mature synchronously. The maturation of the gonads can b...

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Abstract

The invention relates to an EPA (timnodonic acid) content-increasing oyster breeding method and application thereof. Purebred oysters from different subspecies or populations of the same species are taken as parents, and hybrid progenies with high EPA content are generated through homologous outbreeding between the species or the populations in the same species. By the EPA content-increasing oyster breeding method, the EPA content in bodies of oysters can be obviously increased by more than 10 percent; the efficiency is high; and transgenic technology, drug treatment technology and other technologies are not required, so that the operation is simple and convenient and the practicality is high.

Description

technical field [0001] The invention relates to a breeding method and application thereof for increasing nutritional components of oysters, in particular to a breeding method for increasing EPA content in oysters and application thereof. Background technique [0002] Eicosapentaenoic acid (Eicosapentaenoic Acid, abbreviated as EPA) is an important long-chain polyunsaturated fatty acid that cannot be synthesized by the human body but is indispensable, so it is called an essential fatty acid. EPA has the function of cleaning up the garbage (cholesterol, triglyceride) in the blood vessels and dredging the heart blood vessels, and is also known as the "vascular scavenger"; EPA can promote the metabolism of saturated fatty acids in the body, strengthen water metabolism, and have weight loss effects; EPA can also prevent The deposition of fat on the blood vessel wall prevents the formation and development of atherosclerosis and prevents cardiovascular diseases such as cerebral thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 郑怀平王迪文刘合露
Owner SHANTOU UNIV
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