Production method for summer offspring of Songjiang blue pickerel

A technology of Songjiang perch and production method, which is applied in the production field of Songjiang perch summer flower seed, can solve the problems of complex process, stress, disease and the like, and achieves the effects of easy popularization and application, maturity and reliability, and simple process

Inactive Publication Date: 2007-02-21
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This technology only realizes the factory breeding and seed production of Songjiang perch, but there are many deficiencies in the breeding technology and seed production technology, making it difficult to popularize
The main defect that this technology exists is: 1, because the population of Songjiang perch is very little at present, it is difficult to catch the backup broodstock that is descending into the sea and migrating in rivers, and obtaining a breeding colony of a certain scale requires considerable manpower and material resources; The reserved broodstock are put into the industrial workshop for 2-5 months, and then artificially ripened, the process is complex; the use of expensive equipment such as ozone gener

Method used

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Examples

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Embodiment Construction

[0048] The following examples serve to illustrate the invention.

[0049] This embodiment is accomplished through the following steps:

[0050] (1) Harvesting of broodstock

[0051] During the breeding season in early spring, the broodstock of Songjiang perch were collected in offshore with a net.

[0052] Songjiang perch is a fish that reproduces in the sea. It enters the sea along the river in autumn, feeds and fattens in the shallow sea to promote gonad development, and enters the deep sea to overwinter in winter when the coastal water temperature drops to 0°C or below. When the coastal water temperature rises above 0°C in early spring, they return to the shallow sea to eat intensively to accumulate energy, the gonads reach maturity, and they seek mates and mate for reproduction. When the shallow sea temperature rises to 0.5°C-4°C in early spring, mature broodstock swim in the shallow water near the coastal spawning grounds to find mates, and when the water temperature ri...

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Abstract

A method for culturing the minnow of roughskin sculpin includes such steps as capturing the parent fish in near sea in early spring, temporarily culturing in indoor pool, using flowing water to stimulate the parents for estrus, natural mating, ovipositing, collecting fertilized ova, natural incubating in natural seawater in pool, regulating illuminance for correcting the strong phototaxis, applying nutritive forage, improving water quality, and post culturing.

Description

technical field [0001] The invention relates to a production method of fish fry, in particular to a production method of Songjiang perch summer flower fry. Background technique [0002] Songjiang perch (Trachidermis fasciatus) is known as "the first fish in the south of the Yangtze River". It has high economic value and is closely related to my country's traditional history and culture. It was incorporated into Li Shizhen's "Compendium of Materia Medica" and has medicinal value. Songjiang perch is a species of fish that reproduces in the sea. It was originally widely distributed in the coastal areas from Dandong in the north to Xiamen in the south. It is endangered due to the construction of water conservancy facilities and the pollution of the water environment. At present, the Songjiang perch in my country only remains in the Bohai Bay. Chinese patent CN 119460930 discloses the breeding technology of Songjiang perch by Fudan University. Specifically, the back-up brood fis...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K67/00
CPCY02A40/81
Inventor 富惠光申海玉刘玉峰徐子雄
Owner HEBEI AGRICULTURAL UNIV.
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