Temporary culture and ripening promotion method for Octopus vulgaris parents and device used in same

Abstract

The invention relates to a temporary culture and ripening promotion method for Octopus vulgaris parents, and the method is characterized by comprising the following steps: firstly culturing Octopus vulgaris in a temporary culture pond which is provided with a triangular prism-shaped Octopus vulgaris nest, raising water temperature to 24 DEG C, and controlling the salinity of sea water within a range from 3% to 3.2% and the light intensity within a range from 500 Lx to 800 Lx; and feeding ripening promotion feed during the ripening promotion stage, and feeding nest sealing materials after Octopus vulgaris is cultured for 25 to 30 days. The method is practical, stable and effective. The Octopus vulgaris nest used in the invention is made by sintering light-weight heat-insulation clay, and is corrosion-resistant, wear-resistant, durable, low in price and convenient in large-scale promotion and application. The Octopus vulgaris nest is constituted by three sheets and is convenient in assembly and disassembly and convenient in cleaning and storage. By utilizing the method, the Octopus vulgaris individuals can be prevented from fighting each other, the natural growth environments of sea, which is suitable for the parents to lay eggs and protect the eggs is, is simulated. Besides, the side connecting plates of the Octopus vulgaris nest are distributed in a concave-convex alternate manner, so that the parents can lay egg strings on the convex parts, thereby reducing the stacking density of the egg strings and increasing the egg hatchability.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for temporarily raising and promoting maturation of octopus broodstock and a device used therefor. technical background [0002] The true octopus (Octopus vulgaris) belongs to the phylum Molluscs, Cephalopoda, Octopus, Octopidae, and Octopus genus. It is commonly known as Octopus. It mostly inhabits shallow sea gravel or rocky reefs. Distributed in temperate and tropical seas, in my country, it is mainly distributed in Zhoushan, Xiapu, Pingtan, Xiamen, Shantou and other southeast coastal waters. The edible part of true octopus is extremely high and can be eaten fresh or dried. Its meat is delicious, comprehensive in nutrition, rich in protein and highly unsaturated fatty acids. The consumption of true octopus in Fujian, Guangdong, South Korea, Japan and other places is huge, and the market demand and resources are increasingly exhausted. contradictions ar...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for temporarily raising and promoting maturation of octopus parents and the device used therefor to solve the problems of low fecundity of octopus parents, asynchronous larvae development and low egg quality under existing conditions, so as to make up for the deficiencies in the prior art

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