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How to raise seedlings of tiger squid

A tabby squid and breeding pond technology, which is applied in fish farming, climate change adaptation, animal husbandry, etc., can solve problems such as the industrialization of tabby squid breeding has not been realized, achieve the ability to facilitate hatching and adapt to the environment, and reduce dead eggs. and the number of dead seedlings, the effect of improving the progress of gonad development

Active Publication Date: 2022-01-11
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of large-scale breeding technology, the industrialization of tiger squid breeding has not yet been realized.

Method used

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  • How to raise seedlings of tiger squid
  • How to raise seedlings of tiger squid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of seedling raising method of tiger squid, described seedling raising method specifically comprises the following steps:

[0041] 1) Construction of spawning breeding pond: build a semi-buried cement spawning breeding pond with a specification of 10m×5m×1.5m, the bottom and surface of the pond are smooth, equipped with oxygenation, temperature control, sewage discharge, water treatment devices, the bottom of the pond is facing The drainage hole is inclined at a slope of 5%, disinfected with potassium permanganate, and the light intensity of the culture pond is controlled to 220Lux;

[0042] 2) Optimize the spawning pond: the bottom of the spawning pond is 1 fish / m 2 Set up an egg-attached net, which has a mesh size of 25 mm, and is fixed at 10 mm above the bottom of the pond, filled with cultured seawater to a depth of 1.2 m and inflated with oxygen at the bottom of the culture pond to keep DO at 7.2 mg / mL ;

[0043] 3) Putting the broodstock of tiger squid: se...

experiment example

[0073] Experimental example: detection of egg production, hatching rate and seedling survival rate in Example 1 and Comparative Examples 2-6:

[0074] The number of eggs laid, the hatching rate and the survival rate of seedlings of each female tabby squid under the different seedling raising methods in Example 1 and Comparative Examples 2-6 are listed in Table 1. As can be seen from Table 1, the individual egg production, hatching rate and seedling survival rate in the preferred embodiment 1 of the application are all higher, so this method can significantly improve the hatching rate of fertilized eggs and hatched cuttlefish larvae The degree of robustness, reduce the number of dead eggs and dead seedlings, improve the efficiency of seedling raising, and increase economic benefits.

[0075] Table 1. Statistics on the number of eggs laid, hatching rate and seedling survival rate in the whole spawning cycle

[0076]

[0077]

[0078] The conventional technologies in the abo...

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Abstract

The present invention relates to the field of squid seedling breeding and cultivation, in particular to a seedling raising method of tiger squid, comprising: 1) building a breeding pond for spawning; 2) optimizing the breeding pond for spawning; 3) putting in the parent body of tiger squid; 4) strengthening cultivation; 5) ) to collect eggs; 6) to hatch; 7) to raise seedlings; during the intensive cultivation, the white croaker or minnow containing additives that can improve the reproductive performance of the tabby squid broodstock are used as bait, and the water level is controlled to simulate the ebb and flow of the sea tide during hatching. The water pressure changes for hatching, and the seedlings are fed to the growth stage according to the bait series of artemia nauplii → copepods → live mysis larvae → dead mysis. The method helps to speed up the maturation of parental gonads, improve the development process of gonads, shorten the spawning period, significantly improve the hatching rate of fertilized eggs and the robustness of cuttlefish larvae, reduce the number of dead eggs and dead seedlings, improve seedling raising efficiency, and increase economic benefits.

Description

technical field [0001] The invention relates to the field of squid seedling cultivation and cultivation, in particular to a method for growing tiger squid seedlings. Background technique [0002] Tabby squid, Cephalopoda, Sepiaceae. Carcass shield-shaped. Carcass length is twice the carcass width. The carcass has many tabby spots. The meat fins are wider, the maximum width is slightly less than 1 / 4 of the carcass width, located on the entire edge of both sides of the carcass, and separated at the rear end. The length of the sessile wrist is generally 4321mm, with 4 rows of suckers, and the horny ring has no teeth. Stemization of the fourth wrist on the left side of the male. 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 do not have teeth. Inner shell oval. The maximum carcass length recorded is 0.43m, and the maximum weight is 5kg. Distributed in the coastal waters of the Northwest Pacif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A23K50/80A23K10/22A23K10/30A23K20/174A23K20/142A23K20/163A23K20/189A23K20/10A23K10/18
CPCA01K61/00A23K50/80A23K10/22A23K10/30A23K20/174A23K20/142A23K20/163A23K20/189A23K20/10A23K10/18Y02A40/81
Inventor 刘炳舰
Owner ZHEJIANG OCEAN UNIV
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