Culture method of trachidermus fasciatus

A technology of Songjiang perch and breeding method, which is applied in the field of fish farming, can solve problems such as unsatisfactory breakthrough progress, failure to form, fall short of success, etc., and achieve ideal operability and applicability

Inactive Publication Date: 2011-01-05
CHANGSHU CITY FISHERIES TECH PROMOTION STATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, artificial propagation of Songjiang perch and early seed cultivation have made some breakthroughs, such as invention patent application publication number CN1915007A (production method of Songjiang perch summer flower seed) and CN101138327A (Songjiang perch desalination fish fingerling cultivation method) and CN1012333B (Songjiang perch desalination fish fingerling cultivation method) and CN1012333B (Songjiang perch) Artificial breeding methods), but artificial breeding has not yet achieved satisfactory breakthroughs
However, as the industry knows, artificial breeding is precisely the key to protecting the resources of Songjiang perch, because only through reasonable breeding methods can the precious species of Songjiang perch be truly saved and the resources restored, otherwise even if the early reproduction and seedlings If the breeding technology of the species reaches the ultimate maturity, it will still lead to the embarrassing ending that the success will fall short due to the inability to form a complete industrial chain.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A) Seed desalination cultivation: Select healthy and vigorous Songjiang perch artificially propagated seedlings with a body length of about 2.0 cm cultivated by artificial oxytocin and artificial hatching, and put them into indoor cement ponds for cultivation, and the seedling density is 1000 fish / m 2 , by adjusting the water salinity of the indoor cement pool to carry out seed desalination cultivation, the water in the indoor cement pool is simulated seawater, more specifically, it is composed of commercially available sodium chloride as the main component and compatible with the elements contained in seawater. The consistent composition, that is, seawater essence is formulated into water with a salinity (that is, the mass percentage concentration, the same as the concept of salinity below) of 10‰. Seawater essence is a trade name, preferably but not limited to use by Qingqing, Qingdao City, Shandong Province, China The brand produced and sold by Biological Preparations...

Embodiment 2

[0031] Only change the seedling density in step A) to 1500 tails / m 2 , change the salinity (mass percentage concentration) of the pool water at the beginning to 8‰ (the salt content in 1000g of water is 8g), and then reduce the salinity by 1‰ by changing water and adding fresh water every day until it is maintained at 2.5‰ Constant; Only change the stocking density in step C) to 2500 tails / mu, change the throwing amount of ovipositous shrimp green shrimp into 6kg / mu; change the dissolved oxygen in step D) to ≥ 6mg / L, through statistics , the survival rate of the artificially propagated seed is 87.3%, and the survival rate of the mature Songjiang perch is 35.9%, and all the other are the same as the description to embodiment 1.

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PUM

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Abstract

The invention relates to a culture method of trachidermus fasciatus, which belongs to the technical field of fish culture and comprises the following steps of: fry desalination and cultivation; culture pond preparation; pond culture; culture management; pond-separating strengthened fattening; and artificial maturity acceleration. By adopting steps provided by the technical scheme, the invention is not harsh, can expand culture in large areas, has the advantages of ideal operability and applicability, the survival rate in indoor cement pond cultivation up to more than 85 percent and the survival rate in culture pond culture up to more than 35 percent, and can be successfully abutted with an artificial fry propagation technology to form a complete industrial chain.

Description

technical field [0001] The invention belongs to the technical field of fish farming, and in particular relates to a method for cultivating Songjiang perch. Background technique [0002] Songjiang perch (Trachidermus fasciatus) belongs to Scorpaeniformes, Cottidae, and Trachidermus. Songjiang perch has a wide distribution area in history. It is a common fish in the Bohai Sea, Yellow Sea, East China Sea coast and adjacent freshwater waters. It is known as one of the "Four Famous Fishes in China" for its delicious meat and changeable body shape. However, with the development of the economy, due to the increasing disturbance to the environment, the distribution area of ​​this species in our country has shrunk sharply and even is on the verge of extinction, so it has been listed as a national second-class protected animal. [0003] Songjiang perch is an annual fish, and the seedlings bred in the same year can reach sexual maturity in the same year, and most of the broodstock aft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 任丽珍程利民唐洪生徐建荣韩晓磊
Owner CHANGSHU CITY FISHERIES TECH PROMOTION STATION
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