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Mixed culture method for sepia esculenta offspring seed and cynoglossus semilaevis offspring seed

A semi-smooth tongue sole and breeding method technology, applied in fish farming, application, climate change adaptation, etc., to achieve the effect of ensuring sufficient supply, enriching diversity, and improving the survival rate of cultivation

Inactive Publication Date: 2013-05-29
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How these larvae and juveniles can be fully utilized before depletion, thereby increasing the utilization rate, has not been reported so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In July 2010, we conducted a mixed breeding experiment of golden cuttlefish and semi-smooth tongue sole seedlings in Qingdao Jinshatan Aquatic Products Development Co., Ltd. The fertilized eggs of semi-smooth tongue sole were purchased from other manufacturers 5-6 days before the fertilized eggs of golden squid hatched for 20 days. 3 . When the larvae of semi-smooth tongue sole are 4 days old, the golden squid seedlings start to be placed in the pond, and the stocking density of the newly hatched golden squid seedlings is controlled at 400-500 fish / m 3 . Add chlorella to the cultivation pond, and keep the concentration at about 100,000 / ml to improve water quality. Start to change the water after putting in the golden cuttlefish seedlings, the amount of water change is 20% to 30%, increase the amount of water change later on, and after the semi-slick tongue sole is all on the bottom, reduce the water level to 30cm, and carry out running water cultivation. The water us...

Embodiment 2

[0047] In June 2011, we carried out a mixed culture production experiment of golden cuttlefish and half smooth tongue sole seedlings in Tianjin Xinyongfeng Aquaculture Co., Ltd. The fertilized eggs of half-smooth tongue sole are obtained by artificial insemination of half-smooth tongue sole broodstock cultivated by the company. The fertilized eggs are placed in the pond after hatching in the hatching cage for about 25 hours, and the density of the pond is controlled at 12,000 to 13,000 grains / m 3 . When the larvae of semi-smooth tongue sole are 4 days old, golden squid seedlings will be placed in the breeding pond, and the density of newly hatched golden squid seedlings will be controlled at 400-500 fish / m 3 . Add chlorella to the cultivation tank to improve water quality. Breeding water is made of heavy brine and geothermal fresh water. After the golden squid seedlings are put in, the water change is 20% to 30%. After that, the water change is increased every day. The water...

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Abstract

The invention provides a mixed culture method for a sepia esculenta offspring and a cynoglossus semilaevis offspring and belongs to the field of culture of aquatic animal offsprings. The method comprises the following specific steps of: oosperm collection, oosperm hatching, offspring distribution in a pond, water quality management, bait feeding, settlement, offspring transfer to another pond andfollow-up separate culture. By utilizing the method provided by the invention, sufficient supply of live bait and nutrition for sepia esculenta is ensured, and the sepia esculenta offspring is ensured to safely live through about 20 days of age which is the death fastigium, thus the survival rate of sepia esculenta offspring culture is remarkably improved; on the other hand, the sepia esculenta offspring can ingest cynoglossus semilaevis individuals which are weak or sick before being wasted, thus the disease propagation path is cut off, and further, the survival rate of cynoglossus semilaevis offspring culture is improved; and simultaneously, the sepia esculenta offspring and the cynoglossus semilaevis offspring live at different water layers, so that the water space is effectively utilized and the utilization rate of offspring culture water is improved.

Description

Technical field: [0001] The invention belongs to the field of aquatic animal seed cultivation, and in particular relates to a mixed cultivation method of golden squid and half-glossy sole seedlings. Background technique: [0002] Golden squid has the characteristics of rich nutrition, rapid growth, large individuals, short life cycle (one year), fast generation renewal, investment in the same year, diversified breeding models, strong migration regularity, etc., and has broad prospects for breeding. And the scale of farming continues to expand. [0003] During the cultivation of golden squid seedlings, it was found that golden squid seedlings only eat live bait, and the newly hatched larvae are about 11mm in total length, with larger individuals and calibers. Relatively mature rotifers and artemia individuals are relatively small, and it is difficult to meet the feeding requirements of golden squid. At present, in the early stage of golden squid nursery, the bait is live ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 刘长琳陈四清庄志猛王琛赵法箴邹健刘克奉燕敬平刘春胜
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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