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Method for cultivating young shellfish during artificial breeding process

A technology of artificial and seedling ponds, applied in fish farming, application, climate change adaptation, etc., to achieve fast growth, reduce the risk of seedling failure, and reduce labor intensity

Inactive Publication Date: 2009-05-27
GUANGDONG OCEAN UNIVERSITY
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AI Technical Summary

Problems solved by technology

It solves the problem of stable supply of a large amount of bait in the stage of juvenile shellfish cultivation, reduces the process of artificial seedling cultivation, and improves the effect of seedling cultivation

Method used

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Embodiment Construction

[0006] The use of readily available natural bait in shrimp culture ponds for the cultivation of bivalve spats solves the problem of stable supply of a large amount of bait during the spat cultivation stage, reduces the artificial breeding process, and improves the seedling effect. After the planktonic larvae of the bivalve molluscs attach, the water in the prawn breeding pond rich in unicellular algae bait is pumped out with a water pump, and after filtering through a 200-300-mesh sieve silk bag to remove large zooplankton, it is put into the nursery pond. Extract natural algae (mainly green algae and diatoms), bacteria, organic particles, etc. in the shrimp breeding pond water as bait, instead of artificially cultured unicellular algae; feed 1 to 3 times a day, and the amount of feeding each time is the seedling pond water 10% to 20% of the water body. In actual operation, the water body is slightly turbid in the next morning (the degree of turbidity indicates the amount of ba...

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Abstract

The invention relates to a method for cultivating young shellfish during artificial nursery, comprising withdrawing unicellular algae bait-rich pond water with water pump, filtering it with bolting silk mesh bag of 200-300 order to remove large-size zooplankton, inputting into nursery pool, and the young shellfish will take natural algae, bacteria and organic particle in pond water as bait to replace unicellular algae. The invention simplifies nursery course, reduces manual strength, and makes artificial nursery opera operational; the young shellfish grows fast and strong, the cultivating survival rate of shellfish in the sea is high. The natural algae in pond can be provided stably, which reduces risk of nursery failure with unicellular algae, the time for shellfish growing 2-4mm is reduced by 10-20 days, the shellfish can be cultivated in the sea in advance and the cultivation period is prolonged.

Description

technical field [0001] The invention belongs to an aquaculture method, in particular to a method for cultivating juvenile shellfish in the process of artificial seedling cultivation. Background technique [0002] The coastal areas of South China are easily affected by natural disasters such as typhoons. Therefore, large-scale seedlings artificially cultivated in nursery farms are required for the cultivation of pearl oysters, pearl oysters, martensii oysters, penguin pearl oysters, and scallops. , Therefore, after the planktonic larvae are attached to the nursery pond, it is necessary to carry out spat cultivation for a certain period of time and then enter the sea for culture. In the traditional artificial seedling breeding process, the bait used is mainly single-celled algae that have been purified and cultivated, such as Chrysophytes, flat algae, and Chaetoceros. In the planktonic stage of the bivalve larvae, the food intake of the larvae is small, and the demand for bai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 刘永张春芳邓陈茂符韶梁飞龙
Owner GUANGDONG OCEAN UNIVERSITY
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