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Cultchless oyster intermediate culture method based on ecological system

A single oyster, intermediate cultivation technology, applied in the field of aquaculture, can solve the problems of oyster seed death, unable to meet the growth needs of oyster seedlings, and high cost, and achieve the effects of sustainable utilization, high-density cultivation and easy management.

Inactive Publication Date: 2015-09-30
XIAMEN WOHAI MARINE ORGANISM SCI & TECHCO
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  • Abstract
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Problems solved by technology

The usual cultivation process uses artificial culture of single-celled algae to feed, the cost is high, and the nutrition of a single algae cannot meet the growth needs of oyster seedlings, which is likely to cause the death of oyster seedlings

Method used

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  • Cultchless oyster intermediate culture method based on ecological system
  • Cultchless oyster intermediate culture method based on ecological system
  • Cultchless oyster intermediate culture method based on ecological system

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Experimental program
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Embodiment Construction

[0031] 1. Baby choice

[0032] Fujian oysters of 2-3 years old, body weight ≥ 40g, shell length ≥ 10cm, robust, well-developed gonads, which can be directly induced to give birth or cultivated through short-term artificial enhancement are selected as broodstock.

[0033] 2. Insemination and triploid induction

[0034] Scrape the ovary with a scalpel and put it in a container, stir it up; filter it with a 200-mesh sieve to make it a cell suspension, and wash it 3 times. Pick male shellfish according to 10% of the number of female shellfish, and use the same method to obtain semen; add it to seawater with eggs, and stir for 5 minutes. Then use clean sea water to repeatedly wash away excess semen and impurities.

[0035] Triploid oysters were obtained by cytochalasin B treatment, and ploidy detection was performed by flow cytometry. The ploidy of the triploid seed needs to pass the ploidy check to see if the triploid commercial seed is successfully obtained.

[0036] 3. Larva...

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Abstract

The invention discloses a cultchless oyster intermediate culture method based on an ecological system. The cultchless oyster intermediate culture method based on the ecological system comprises the following steps of oyster parent selection, insemination and triplont induction, larva culture, non-attached metamorphosis, upwelling ecosystem culture and the like. The cultchless oyster intermediate culture method is based on an ecological aquaculture model, and liberal algae-laden water in a shrimp pond serves as a bait source in a cultchless oyster intermediate culture stage. Algae types in the shrimp pond are various, and nutrition demands of oyster seedlings can be met, water in the shrimp pond can be changed appropriately every day, healthful growth of shrimps can be promoted, baits of shrimps and oysters can be shared, and sustainable utilization is implemented.

Description

technical field [0001] The invention relates to the field of cultivation, in particular to an ecosystem-based intermediate cultivation method for individual oysters. Background technique [0002] In the process of cultivating oyster seedlings, after being induced into monomers, the survival rate is very low if they are cultured in the sea too early. Therefore, intermediate cultivation is a very critical step. The usual cultivation process adopts the artificial cultivation of single-celled algae for feeding, which is costly, and the nutrition of a single algae cannot meet the growth needs of oyster seedlings, which may easily cause the death of oyster seedlings. Contents of the invention [0003] The object of the present invention is to provide a kind of intermediate culture method of single oyster based on ecosystem, to solve the above-mentioned problems existing in the prior art. [0004] The technical scheme provided by the invention is as follows: [0005] The inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 陈春树杨求华柯才焕林琪周龙周宸何丽斌方旅平
Owner XIAMEN WOHAI MARINE ORGANISM SCI & TECHCO
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