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Artificial seedling raising method for Pinctada margaritifera

A pearl oyster, artificial technology, applied in the fields of climate change adaptation, animal feed, animal feed, etc., can solve the problems of n. The effect of small volume, relatively stable, and cost reduction

Inactive Publication Date: 2021-09-03
GUANGDONG OCEAN UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Domestic research on pearl oyster cultivation technology began in the 1970s and has a history of more than 50 years, but there are still problems such as low survival rate of seedling sea area culture and low rate of pearl oyster planting and nucleation.
The survival rate of pearl oyster seedlings cultured in sea areas to the specifications suitable for nuclear implantation surgery is less than 0.1%, which seriously affects the large-scale cultivation of pinnacle oyster
China is a big consumer of black South Sea pearls, but it has not yet been able to industrialize the culture of mother-of-pearl to cultivate black pearls, resulting in the consumption of black pearls still relying on imports

Method used

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  • Artificial seedling raising method for Pinctada margaritifera

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A method for artificial seedling cultivation of pearl oyster, comprising the steps of:

[0026] (1) Extract natural seawater from the sand filter well according to conventional methods, and filter through the secondary fine sand layer, the fine sand particle size is less than 0.1mm, and the thickness of the fine sand layer is 80cm;

[0027] (2) Select the pearl oyster with a shell age of 2 years and a shell height of 10cm. The nacre in the shell is bright iridescent, and the gonads are mature. The appearance of gonads of pearl oyster is yellow;

[0028] (3) Artificially inducing fertilization and oviposition of mother shellfish of Pinctada japonica by conventional methods to obtain fertilized eggs;

[0029] (4) The nursery pond maintains a light intensity of 150Lx;

[0030] Fertilized eggs develop to D-shaped larvae and start feeding the bait the next day, feeding 3 times a day (8:00-9:00, 16:00-17:00, 20:00-21:00), the amount of feeding It is advisable to observe th...

Embodiment 2

[0034] A method for artificial seedling cultivation of pearl oyster, comprising the steps of:

[0035] (1) Extract natural seawater from the sand filter well according to conventional methods, and filter through the secondary fine sand layer, the fine sand particle size is less than 0.1mm, and the thickness of the fine sand layer is 80cm;

[0036] (2) Select the pearl oyster with shell age 2 years old and shell height 10cm. The nacre in the shell is bright iridescent, and the gonads are mature. The appearance of gonads of pearl oyster is yellow;

[0037] (3) Artificially inducing fertilization and oviposition of mother shellfish of Pinctada japonica by conventional methods to obtain fertilized eggs;

[0038] (4) The nursery pond maintains a light intensity of 200Lx;

[0039] Fertilized eggs develop to D-shaped larvae and start feeding the bait the next day, feeding 3 times a day (8:00-9:00, 16:00-17:00, 20:00-21:00), the amount of feeding It is advisable to observe that mor...

Embodiment 3

[0043] A method for artificial seedling cultivation of pearl oyster, comprising the steps of:

[0044] (1) Extract natural seawater from the sand filter well according to conventional methods, and filter through the secondary fine sand layer, the fine sand particle size is less than 0.1mm, and the thickness of the fine sand layer is 80cm;

[0045] (2) Select the pearl oyster with shell age 2 years old and shell height 10cm. The nacre in the shell is bright iridescent, and the gonads are mature. The appearance of gonads of pearl oyster is yellow;

[0046] (3) Artificially inducing fertilization and oviposition of mother shellfish of Pinctada japonica by conventional methods to obtain fertilized eggs;

[0047] (4) The nursery pond maintains a light intensity of 250Lx;

[0048]Fertilized eggs develop to D-shaped larvae and start feeding the bait the next day, feeding 3 times a day (8:00-9:00, 16:00-17:00, 20:00-21:00), the amount of feeding It is advisable to observe that more...

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Abstract

The invention discloses an artificial seedling raising method of Pinctada margaritifera, which comprises the steps of treating water for seedling raising, selecting parent Pinctada margaritifera, obtaining fertilized eggs, breeding larvae, putting seedling collectors and the like. Relatively stable environmental conditions are provided for the growth and development of the larvae and the seedlings by controlling the illumination intensity, the water changing frequency and the feeding amount, and the survival rate and the metamorphosis rate of the larvae are improved. By the adoption of the seedling raising method, the seedling raising success rate is remarkably increased, the production cost is low, the method is easy to popularize and apply in seawater pearl shell artificial seedling raising production enterprises, and remarkable social benefits and economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for artificial seedling cultivation of pearl oysters. Background technique [0002] Pinctada margaritifera, also known as black butterfly oyster, belongs to the mollusk phylum, bivalve class, heterocylindrome, pearl oyster family, and pinctada genus. It is an ideal mother oyster for cultivating black South Sea pearls. The color of the black pearls cultivated by mother-of-pearl ranges from light gray to dark black, with unique luster. The black tone is accompanied by various colorful colors. Slowly turning the black pearls can see the ever-changing rainbow flashes, giving people a mysterious visual experience , known as fantasy pearls. French Polynesia is the largest production base of black pearls in the world. The output value of black pearls cultivated in it accounts for more than 95% of the total output value of black pearls in the world. The breeding areas are m...

Claims

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Application Information

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IPC IPC(8): A01K61/54A23K50/80A23K10/18
CPCA01K61/54A23K50/80A23K10/18Y02A40/81
Inventor 邓岳文刘如华梁飞龙廖永山杨创业王庆恒李俊辉
Owner GUANGDONG OCEAN UNIVERSITY
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