A Breeding Method of Long Oyster with High Melanin Content in Soft Body

Abstract

The invention discloses a breeding method of crassostrea gigas (black oysters) with a high melanin content in the soft parts and a proof scheme for the effectiveness of the method. The breeding method includes the following steps that by observing the color of common oysters, the oysters of which the ratio of the area of black shells to the total shell area is more than 90 percent and the lightness value V< 0.20 are selected, melanin extraction of oyster shells, melanin extraction of soft parts of the oyster shells and relation analysis of the melanin content and the melanin content of the soft parts are carried out, the applicant finds a significant positive correlation phenomenon of the color of the shells of the crassostrea gigas and the deposit rate of melanin in the pallium in the experiment process, and the blacker the shells are, the higher the melanin content of the soft parts is. By means of the breeding method of the crassostrea gigas (black oysters) with the high melanin content in the soft parts, the oysters with the high melanin content in the soft parts can be selected and bred rapidly, the breeding efficiency of the oysters is improved, and as the health-care value of melanin is accepted by the market, the new oyster species obtained through the method can increase the additional value of breeding.

Description

Technical field: [0001] The invention relates to a breeding method, in particular to a breeding method of long oysters with high melanin content in the soft body ("black" oysters). Background technique: [0002] Melanin is a biological polymer widely distributed in animals and plants. With the continuous in-depth research on natural melanin, it has been found that melanin has a wide range of biological activities, including delaying aging, regulating immunity, protecting light damage, anti-oxidation, scavenging free radicals, protecting cardiovascular function, etc. Natural melanin with high content The food has been fully recognized by consumers and has a bright market prospect. [0003] At present, some scholars have reported the breeding of long oysters with different mantle colors, but there is no report on the breeding of oysters with black shells on the left and right sides, and the breeding of long oysters with different mantle colors is based on the observation of m...

AI Technical Summary

Problems solved by technology

[0003] At present, some scholars have reported the breeding of long oysters with different mantle colors, but there is no report on the breeding of oysters with black shells on the left and right sides, and the breeding of long oysters with different mantle colors is based on the observation of mantle color with naked eyes. The internal correlation between shell color and mantle color has not been reported. This method needs to pry open the shell, which is greatly affected by subjective factors, laborious, laborious, high in breeding costs, and poor in accuracy.

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