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Method for temporary culture, egg laying and egg protecting of octopus variabilis sasaki and device for method

A technology of long octopus and temporary holding pond, which is applied in the application, fish farming, climate change adaptation and other directions, can solve the problems of long octopus parental cannibalism and cannibalization of fertilized eggs, etc., to avoid residual food and fights, and to achieve low prices. , the effect of improving the hatching rate and survival rate of larvae

Active Publication Date: 2012-09-19
OCEAN UNIV OF CHINA
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AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of long octopus temporary support, method and device used for laying eggs and egg protection, solve the problems such as mutual cannibalism of long octopus parents and mutual cannibalism during egg protection under the existing conditions, to make up for Insufficiency of existing technology

Method used

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  • Method for temporary culture, egg laying and egg protecting of octopus variabilis sasaki and device for method
  • Method for temporary culture, egg laying and egg protecting of octopus variabilis sasaki and device for method
  • Method for temporary culture, egg laying and egg protecting of octopus variabilis sasaki and device for method

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Embodiment Construction

[0022] The method specific steps of long octopus parent body of the present invention temporarily raising, laying eggs and protecting eggs are as follows:

[0023] 1) Selection of parent body: select long octopus with complete carcass surface, plump carcass, and healthy body color as parent; prepare octopus nest at the same time: octopus nest is made of aseptic plastic, consisting of two sections, the front section is cylindrical. Permeable tube 1, rear section is the egg protection tube 2 of conical structure, total length 50~70cm, and diameter is 10~15cm. The front end of the permeable tube 1 is open, and a stainless steel ring 4 is inlaid on the tube wall; the back section of the egg protection tube 2 is gradually narrowed, and the end is closed, and the end is bound with a pottery pendant 5, which weighs 100-200g. The tube wall at the first two-thirds of the opening end of the hollow cylindrical structure of the permeable tube 1 has small holes 4, the diameter of the small...

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Abstract

The invention discloses a method for temporary culture, egg laying and egg protecting of octopus variabilis sasaki and a device for the method, wherein the method comprises steps of 1 selection of parents, 2 temporary culture and accelerated ripening of parents and 3 egg protecting of the parents, and an octopus nest which is specifically designed is used. The method for temporary culture, egg laying and egg protecting of the octopus variabilis sasaki is simple in operation, the device for the method is low in cost and high in use rate, can effectively increase survival rate and egg laying amount of the parents of the octopus variabilis sasaki, hatching rate of fertilized eggs and healthy degree of young seedling. The octopus nest simulates a natural nest structure of the octopus variabilis sasaki, is more suitable for actions of patient octopus variabilis sasaki such as hiding, defensing and laying eggs and protecting eggs and the like, and is simple in making, convenient to use, less in investment and excellent in effects.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for temporarily raising long octopuses, laying eggs and protecting eggs and a device used therefor. Background technique [0002] Long octopus (Octopus minor) belongs to Cephalopoda, Octopus order, Octopus family, Octopus genus, commonly known as horse octopus, big octopus or octopus, widely distributed in my country's Bohai Sea, Yellow Sea, East China Sea, South China Sea and Japan Sea. The long octopus is an annual, and its breeding peak in the north is from April to July. The long octopus is delicious and has rich nutritional value. It is exported to Japan and South Korea in large quantities. It is an important foreign exchange-earning treasure in northern my country. [0003] Long octopuses generally use PVC pipes or tiles as octopus nests during artificial temporary breeding and broodstock cultivation (Qian Yaosen, 2011). Both ends of the PVC pipe ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01K63/00A23K1/18
CPCY02A40/81
Inventor 郑小东刘畅刘兆胜王培春钱耀森李琪
Owner OCEAN UNIV OF CHINA
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