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Method for Jellyfish hybrid breeding over-winter and interim breeding

An intermediate breeding, jellyfish technology, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as jellyfish germplasm degradation, and achieve the effects of fast growth, strong adaptability and strong disease resistance.

Inactive Publication Date: 2009-12-23
SHANDONG HOMEY AQUATIC DEV
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of jellyfish germplasm degeneration, the present invention provides a method for jellyfish hybrid seedling overwintering and intermediate breeding

Method used

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the examples.

[0030] A method for overwintering and intermediate breeding of jellyfish hybrid seedlings. According to the steps, it is divided into breeding of jellyfish parent stings, oviposition and hatching of jellyfish seed stings, collection of floating larvae, cultivation of polyp larvae and low-temperature preservation and overwintering cultivation, polypoid There are five stages in the development of larvae and sphenoids:

[0031] 1. Cultivation of jellyfish stings

[0032] The first sexual maturity time of jellyfish is at the end of August and early September. Wild jellyfish in Haizhou Bay, Yancheng, Jiangsu are collected as male parents, and wild jellyfish in Jinghai Bay, Shandong are used as female parents. The body weight of selected relatives is more than 5kg, so as to ensure that the relatives can conceive eggs Large quantity, high reproduction rate, early spawning, high fertiliza...

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Abstract

The invention relates to a method for jellyfish hybrid breeding over-winter and interim breeding, comprising the following steps: collecting wild jellyfish at Haizhou bay in Yancheng of Jiangsu as male parental jellyfish and wild jellyfish at Jinghai bay in Shandong as female parental jellyfish, storing scyphula at a low temperature and over-winter breeding the scyphula through breeding, spawning and hatching by the jellyfish, collecting planula, breeding the scyphula and controlling the water temperature at 3-10 DEG C, raising the temperature within a short time and keeping the final water temperature at 18 DEG C to carry out the strobilation of the scyphula, control the temperature, throw to feed and change water; and breeding an ephyra to the specification of a commodity. The invention is a breakthrough for the jellyfish hybrid breeding technique and solves the technical problem of idioplasm degeneration of the jellyfish. The jellyfish bred by the method has the characteristics of high adaptability, fine high temperature resistance and strong disease resistance as well as fast growth rate. Experiments prove that, after the jellyfish grows up, the jellyfish is red, and physiological data, such as diameter, weight, colloid layer and oral arms, and the like are remarkably improved. The average yield is increased by over 20%.

Description

technical field [0001] The invention relates to a culture of jellyfish, in particular to a method for breeding jellyfish hybrid seedlings for overwintering and intermediate breeding. Background technique [0002] Jellyfish (Rhopilema esculetum Kishinouye) is a large warm-water jellyfish that lives planktonic in the ocean. Root mouth jellyfish (Rhizostomadae), jellyfish (Rhopilema). The larvae of jellyfish inhabit the sea area where the brackish and fresh water meet in the estuary. The estuaries of larger rivers in various sea areas are places for the reproduction and growth of juvenile stings. Due to the different geographical locations, the time and speed of sea water temperature rise in spring vary greatly in each breeding place. Therefore, the concentrated breeding, growth period and planktonic migration routes of jellyfish in each sea area are also different. From the south to the north coast of my country, a variety of local populations have been formed, such as grou...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 谭福祎唐聚德张术森孙永军
Owner SHANDONG HOMEY AQUATIC DEV
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