Method for breeding double white shell Japanese scallop

Abstract

The invention discloses a double white shells patinopecten yessoensis cultivation method. The patinopecten yessoensis individual, in which the upper shell whitening region area is more than 30% and the gonad development is plump, is firstly selected as a parent scallop. In the particular conditions such as density, temperature and so on, the accelerated ripening, the induced spawning, the artificial insemination, the hatching, the cultivation, the attachment seedling collection, the ex-storage, the intermediate seedling protection and growth, as well as the mariculture are implemented, so that the patinopecten yessoensis in which the whitening area is increased further is cultivated. Moreover the patinopecten yessoensis obtained is taken as a parent scallop to repeat the above steps. The steps are repeated for several times until a scallop seedling in which the upper and lower shells colours are entire pure white is obtained. The double white shells patinopecten yessoensis not only has the bright colour, at the same time the stress resistance enhancement is in favour of the inhibition of disease occurrence, and the perforation of parasites and other microorganisms can be reduced. With a nice appearance, the scallop is well received among consumers, and with the heat-resisting ability, the scallop can tolerant the high temperature up to 25 DEG C. With a low mortality rate which is less than 10%, the growth rate of the scallop is stronger than the general patinopecten yessoensis. Therefore, the economic benefits of farmers can be effectively increased.

Description

Technical field: [0001] The invention relates to a method for cultivating scallops, in particular to a method for cultivating scallops with double white shells. Background technique: [0002] Patinopecten yessoensis Jay belongs to Mollusca, Lamellibranchia, and Pectinidae shellfish. It belongs to cold-water marine shellfish and is one of the most important economically cultivated species in the Scallop family. one. It is mainly distributed in the coast of the Far East of Russia, the Kuril Islands, Kata, Hokkaido, northern Honshu, and the Japanese Sea in northern Korea. [0003] Ezo scallops are naturally distributed in water depths of 6-60m, the substrate is gravel, and the suitable temperature range for growth is 5-20°C. They are dioecious, and there are very few hermaphrodites. Heterogeneous fertilization, the female gonads are orange-red during the reproductive season, and the males are milky-white. The age of sexual maturity is generally 2 years old. my country's Yello...

AI Technical Summary

Problems solved by technology

Brown shells are easily penetrated by microorganisms such as parasites, and the appearance is not beautiful, which directly affects the sales of products and the economic benefits of breeding enterprises