Three-dimensional seedling cultivating method of octopus variabilis

A three-dimensional, long octopus technology, which is applied in animal husbandry and other fields, can solve the problems of long octopus natural resources decline and increased fishing efforts, and achieve the effects of increasing seedling breeding density, convenient production and operation, and saving costs

Active Publication Date: 2010-05-12
OCEAN UNIV OF CHINA
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  • Summary
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AI Technical Summary

Problems solved by technology

At the same time, due to the intensification of fishing in the Yellow Sea and the Bohai Sea, the natural resources of the long octopus have seriously declined

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0008] 1. Build a multi-layer artificial spawning field in the indoor nursery pond, and shield the long octopus parents put in

[0009] The multi-layer artificial spawning ground is composed of red bricks, black hollow tubes or oyster shells with a shell length greater than 15cm and a shell width greater than 8cm, arranged in six 20m 3 Among them, the tile-style spawning ground is a 30cm×20cm×20cm-sized multi-layer octopus nest built with red bricks as the support and red tiles as the roof. The nests are arranged in a random order. The field is composed of 6-10 black hollow tubes with a diameter of 5-10cm and a length of 30-50cm, which are bundled into a group to form a ladder or tower-like spawning field. The hollow tubes in each group are multi-layered and staggered. Three-dimensional, placed in the same direction as the water flow in the pool; the shell-type spawning ground is a multi-layer octopus nest formed by inlaying oyster shells larger than 15cm×8cm (shell length×she...

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PUM

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Abstract

The invention discloses a three-dimensional seedling cultivating method of octopus variabilis, which comprises the construction of a multi-layer artificial spawning ground in an indoor breeding pond for shading parents, the three-dimensional temporary culture of the octopus variabilis for inducing maturation and spawning, the spawn protection of the parent for hatching and the three-dimensional cultivating of larvae. Initial baits are the larvae of benthic crustaceans, cladocerans and the like. The artificial spawning ground can be divided into tile type, pipe type or shell type and formed by multi-layer staggered placement in the indoor breeding pond according to a certain way, thereby leading the parents of the octopus variabilis to have separate sufficient spawning and hatching space and effectively avoiding the phenomena of fight and eating of the octopus variabilis. The method can lead the temporary culture density of the parents to achieve 10-20 pieces/m3, lead the hatching rate of the larvae to achieve 75% and lead the culture density of the larvae to achieve 300-500 pieces/m3, avoid the eating phenomena of the parents and the larvae and realize the rapid growth of seedlings. The method is applicable to large-scale seedling breeding of the octopus variabilis.

Description

technical field [0001] The invention relates to a method for cultivating octopus seedlings in the field of aquaculture, in particular to a method for cultivating long octopus three-dimensional seedlings. Background technique [0002] Octopus variabilis (Sasaki, 1929) belongs to Cephalopoda, Octopus order, Octopus family, and Octopus genus. Its local names include horse octopus, long-legged octopus, long-clawed octopus, etc. It is distributed in the north and south coasts of my country. In recent years, with the large amount of octopus being exported to Japan and South Korea, the market has been seriously in short supply, and its economic value has continued to rise. It has become an important economic cephalopod in the north. At the same time, due to the intensification of fishing efforts in the Yellow Sea and the Bohai Sea, the natural resources of the long octopus have seriously declined. Artificial breeding and releasing are effective means to protect and increase the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033
Inventor 郑小东钱耀森王培亮李琪林祥志杨建敏
Owner OCEAN UNIV OF CHINA
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