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A method for ecological seedling cultivation of rock oyster by using high temperature period

The technology of rock oyster and high temperature period is applied in the field of ecological seedling raising of rock oyster in high temperature season to achieve the effects of promoting rapid growth, firm attachment of seedlings and reducing production cost

Active Publication Date: 2020-05-19
OCEAN UNIV OF CHINA
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a method for carrying out ecological seedling cultivation of rock oysters in a high temperature period to improve the survival rate and quality of rock oyster seedlings, so as to overcome the above-mentioned shortcomings of the existing rock oyster artificial seedling technology

Method used

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Embodiment Construction

[0028] The present invention is further described by specific examples below.

[0029] A method for carrying out ecological seedling cultivation of rock oysters in high temperature period is characterized in that it comprises the following steps:

[0030] (1) Selection of ponds for cultivating broilers: firstly, at the beginning of July when the high temperature period in northern summer begins, select ponds with 20-30 mu and a water depth of 1.5 meters for raising shrimp or ginseng. The temperature of the pond water is 25°C-33°C, 30-33, the water quality is fertile;

[0031] (2) Ecological maturation promotion of broccoli: According to the biological characteristics of rock oysters, select 2-3 age rock oysters with a shell height of 12-16cm as broodstock, and place them in the outdoor shrimp or ginseng ponds in (1) Ecological maturation-promoting cultivation is carried out in the pond, and the single-celled algae abundant in the pond during the high temperature period in sum...

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Abstract

The invention provides a method for crassostrea nippona ecological breeding in a high-temperature period. According to the method, ecological breeding is carried out for accelerating maturity of parent oysters in a northern summer high-temperature period under conditions of high pond water temperature and rich bait materials; a conceptacle index method and effective accumulated temperature are combined for accurately determining egg laying time of the parent oysters to obtain high-quality mature fertilized ova; egg laying speed and egg laying quantity are increased by adoption of a low-temperature induction egg-laying method. Growth and development speed and survival rate of larva are increased through scientific management, comb shells are developed to serve as a substrate for spat collection due to long crassostrea nippona aquaculture time, and firmness in spat attachment, less proneness to breakage and shedding and suitableness for mariculture and off-sea deep water aquaculture are realized; by ecological culture of spats in ponds, fast growth of the spats is promoted by taking advantages of high water temperature and rich bait materials in the ponds while production cost is greatly reduced, and on the other hand, the spats are exercised, and mariculture survival rate is increased.

Description

technical field [0001] The invention relates to a method for artificially raising seedlings of rock oysters, in particular to a method for carrying out ecological seedling raising of rock oysters in high temperature seasons. Background technique [0002] Rock Oysters ( Crassostrea nippona ) belongs to the phylum Molluscs, Phyllobranches, Oysteridae, and the genus Pyramid. It is one of the larger species of oysters and is the nobleman among oysters. Rock oysters are mainly distributed in deep-water sea areas with high salinity and temperature such as Japan and Australia. It has the characteristics of large body, fast growth, high meat yield, high temperature resistance, high salt resistance, and strong disease resistance. It is a newly developed excellent oyster. The species of oyster farming is very suitable for farming in deep waters off the coast of my country. The best season to eat rock oysters is in summer, which is also called summer oysters in Japan, while the best c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCY02A40/81
Inventor 于瑞海李琪张景晓张哲李鹏飞
Owner OCEAN UNIV OF CHINA
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