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Shallow sea oyster single body cultivation method

A breeding method and oyster technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of low survival rate, slow growth, small mesh of breeding cages, etc., and achieve strong operability, high survival rate, The effect of simple method

Active Publication Date: 2014-08-06
FISHERIES RES INST OF FUJIAN
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AI Technical Summary

Problems solved by technology

[0003] At present, most single oyster cultures adopt indoor cultured single seedlings directly placed in the sea area for cultivation. Due to the small size of the oyster seedlings and the small mesh of the breeding cages, the breeding cages are easily blocked by floating mud in the sea area, and the oyster seedlings are easy to pile up on each other, and the growth rate is slow. Low
The present invention adopts the gray plastic sheet to attach the seedlings to the indoor nursery room, and then moves them to the sea area to carry out intermediate cultivation of seedlings. After cultivating to medium seedlings (shell length 4-5cm), debasement is carried out, and finally the technical method of the oyster monomer medium seedlings is framed and cultivated. , this technology innovates oyster seedling and individual culture technology, and solves the problems of unsatisfactory oyster individual culture effect, slow growth and low survival rate of oysters

Method used

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Examples

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Embodiment 1

[0020] The following is an example with the Portuguese oyster culture method

[0021] 1) Portuguese oyster factory artificial breeding

[0022] ①Sperm and egg acquisition

[0023] Individuals over 2 years old, with a shell height of more than 8cm, regular shell shape, and full gonads were selected from the Portuguese oyster culture population as broodstock. Dry the brood shellfish (the ratio of male to female is 50:1) in the shade for 8-10 hours, and then put them into the spawning pond for discharge or obtain sperm eggs by dissection.

[0024] ②Fertilization and hatching

[0025] The concentration of semen should be 3-4 sperms around each egg, and the precipitation method should be used to wash the eggs 2-3 times when there is too much semen. The density of fertilized eggs is 100-200 / ml, slightly inflated, and the hatching water temperature is 20-30°C. When the fertilized eggs develop to the D-type larval stage, the siphon method is used to divide the ponds for cultivatio...

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Abstract

The invention discloses a shallow sea oyster single body cultivation method. The method comprises the following steps of sperm and egg obtaining, fertilization, incubation, baby oyster cultivation, young oyster collection, middle cultivation of young oyster seeds in a sea area, separation of the young oysters from matrixes, and placing of oyster single bodies in baskets and cultivation. According to current oyster single body cultivation, the young oyster single bodies cultivated in a room are adopted and directly placed in the sea area for cultivation, as the young oysters and cultivation cage screens are small, a cultivation cage is blocked by float sludge in the sea area easily, the young oysters are mutually piled up easily and grow slowly, and the survival rate is low. The method solves the problems that the existing oyster single body cultivation effect is poor, the oysters grow slowly, and the survival rate is low. The method is easy and convenient to carry out, and high in operability and survival rate, and the oyster single bodies grow fast.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a shallow sea oyster culture method. Background technique [0002] Oysters (Ostreidae) belong to the phylum Mollusca, the class Bivalvia, the order Pterioidae, and the family Ostreidae, and are important marine organisms. Its meat is delicious and has high nutritional value. It is known as "milk in the sea". It is an important marine aquaculture object in all countries in the world, and it is also the economic shellfish with the largest aquaculture output in China and the world. China's oyster production ranks first in the world, accounting for more than 83% of the world's oyster production. However, what is extremely disproportionate to the big oyster farming country is that the traditional oyster farming method is still used in my country at present, the output value is low, and the breeding efficiency is not high, and the price of oysters in China is far from that of foreign countr...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 曾志南宁岳祁剑飞巫旗生
Owner FISHERIES RES INST OF FUJIAN
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