Sepia pharaonis larva breeding bait collecting and indoor temporary rearing method

A technology of tabby squid and bait, which is applied in the field of tabby squid seedling bait collection and indoor temporary cultivation, can solve the problems of restricting large-scale promotion of breeding, exhaustion of tabby squid resources, low hatching rate of seedlings, etc., to achieve high hatching rate and low cost , the effect of high survival rate

Inactive Publication Date: 2019-12-10
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, due to the severe depletion of tiger squid resources in the ocean and the shortage of market supply, people are eager to fill the huge gap in the market through workers breeding tiger squid
The low hatching rate, uneven seedlings, low survival rate, and large amount of water changes in artificially cultured tiger squid lead to high seedling costs. The price of squid seedlings with a body length of 3 cm is as high as 6 yuan per tail, which seriously restricts In order to promote the large-scale cultivation of this famous and high-quality species, how to deal with the above-mentioned problems that need to be solved in a practical way, so as to reduce production costs and improve the quality of seedlings, is of great significance to the development of the tiger squid industry.
In particular, in the breeding process of tiger squid seedlings, the supply of a large amount of high-quality live bait has become a bottleneck for the success of squid seedling cultivation

Method used

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  • Sepia pharaonis larva breeding bait collecting and indoor temporary rearing method
  • Sepia pharaonis larva breeding bait collecting and indoor temporary rearing method
  • Sepia pharaonis larva breeding bait collecting and indoor temporary rearing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present embodiment provides a kind of tabby squid nursery bait collection and indoor temporary cultivation method, comprising the following detailed steps:

[0041] 1) Live bait hatching: add 9mg / L C-type sodium peptide and 36mg / L dibutylhydroxytoluene to the pretreated seawater of the hatching tank, put Artemia eggs into the seawater at a density of 5.5g / L, 1000Lux white light After incubation under irradiation for 24 hours, reduce the seawater temperature to 14°C at a rate of 1°C / 10min, stir the seawater, remove the upper layer of egg shells and sieve, and raise the temperature to 26°C;

[0042] 2) Live bait collection: prepare a collection cage, and its peripheral surface and a bottom surface are covered with a screen A that only allows Artemia larvae to enter; another collection cage is prepared, one bottom surface of which is connected to the other bottom surface of the collection cage, and collected The bottom surface and the surrounding surface of the net cag...

Embodiment 2

[0059] This example provides the application of the method of collecting bait for raising tiger squid seedlings and indoor temporary breeding described in Example 1 in the cultivation of Artemia, and specifically provides a kind of Artemia larvae, which is prepared by the method described in Example 1.

Embodiment 3

[0061] The third example of this embodiment provides the method of collecting bait for raising tiger squid seedlings in Example 1 and temporarily raising it indoors in the cultivation of tiger squid. Seedlings are used as bait from opening to one week old.

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Abstract

The invention relates to the technical field of sepia pharaonis larva breeding bait treatment, in particular to a sepia pharaonis larva breeding bait collecting and indoor temporary rearing method. The method comprises the steps of 1) live bait hatching, wherein artemia cysts are hatched in seawater, and white light stimulation and cooling stimulation are combined for promoting the separation of larvae and egg shells of the artemia cysts; 2) live bait collection, wherein the larvae of the artemia cysts are gathered to a gathering net cage; 3) reinforcement of temporary rearing, wherein the larvae of the artemia cysts in the gathering net cage are subjected to reinforcement of temporary rearing by combining bacteria and algae and then eaten by sepia pharaonis seedlings. The method not onlycan make diapause eggs of the artemia cysts hatched and obviously increase the hatching rate of the artemia cysts, but also can make the larvae of the artemia cysts quickly separated from the egg shells and increase the survival rate of the larvae, can also efficiently gather the larvae of the artemia cysts with low stimulation, increases the nutrient content of the artemia cysts after reinforcedculture, facilitates the rapid growth and development and rehabilitation after ink spraying of newborn sepia pharaonis seedlings, and ensures the smooth process of larva breeding of sepia pharaonis.

Description

technical field [0001] The invention relates to the technical field of bait treatment for tiger squid seedlings, in particular to a method for collecting bait for tiger squid seedlings and indoor temporary cultivation. Background technique [0002] Tabby squid, Cephalopoda, Sepiaceae. Carcass shield-shaped. Carcass length is twice the carcass width. There are many tiger spots on the back of the carcass, the fins are wider, the maximum width is slightly less than 1 / 4 of the carcass width, it is located on the entire edge of both sides of the carcass, and is separated at the rear end; the length of the sessile arm is generally 4321mm, with 4 rows of suckers, and no horny rings tooth. The fourth arm on the left side of the male is stalked; the tentacles are sickle-shaped, with 5-6 rows of suckers, ranging in size, of which 3-4 are very large, and their horny rings have no teeth; the inner shell is oval; the largest recorded carcass length is 0.43m, The maximum weight is 5kg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01K80/00
CPCA01K80/00A01K61/59Y02A40/81
Inventor 刘炳舰
Owner ZHEJIANG OCEAN UNIV
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