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Method for constructing specific pathogen-free penaeid shrimp culture system

A construction method and technology of aquaculture system, applied in fish farming, application, climate change adaptation, etc., can solve problems such as cross-infection of diseases, waste of water resources, stress on prawns, etc., achieve strong stress resistance, improve water quality, and antibacterial Vitality-enhancing effect

Inactive Publication Date: 2010-12-29
GUANGDONG OCEAN UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0006] This technology solves the major problems of ecological imbalance, shrimp stress, waste of water resources, environmental pollution and cross-infection of diseases caused by frequent water changes to regulate water quality in the traditional farming mode

Method used

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Embodiment Construction

[0026] 1. The water for cultivation should be subjected to 24-hour dark precipitation and secondary sand filtration. The primary sand filter is filtered through a coarse sand layer with a thickness of 40-60 cm and a particle size of 0.2-0.3 cm; the secondary sand filter generally has a volume of 5-20 cubic meters, and the bottom of the sand filter must leave about 10 cm of basic The space and the sieve plate are used as supports; the sieve plate is covered with a layer of pebbles with a diameter of 3 to 5 cm; the gravel is covered with coarse sand with a thickness of 40 to 60 cm and a particle size of 0.1 to 0.2 cm: the coarse sand is covered with 20 to 30 cm cm, fine sand with a particle size of less than 0.1 cm. After sand filtration, sodium hypochlorite, bleaching powder or bleaching essence need to be added to the seawater to make the available chlorine in the water reach 10mg / L-15mg / L, carry out disinfection treatment for 6-12 hours, and then add 10mg / L sodium thiosulfate...

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Abstract

The invention relates to a method for constructing a specific pathogen-free penaeid shrimp culture system, which comprises the steps of adopting comprehensive treatment of culture water for avoiding the entry of pathogens; introducing selected oocystis borgei into a penaeid shrimp culture pond for constructing a good microalgae community structure, and using a microalgae-controlled water environment to reduce the concentration of injurious factors, such as ammonia nitrogen, nitrite nitrogen and the like in a water body, improving the water quality, eliminating stress factors, improving the content of dissolved oxygen in the water and leading the environment of the water body to be in the good dynamic balance state for a long time. A system of the oocystis borgei, rhodopseudanonas palustris and phycomycete is utilized for inhibiting the growth of vibrios during the early stage, the middle stage and the late stage of culture; and schmackeria dubin is utilized to intake microalgae, thereby controlling the number of the microalgae in the water body and eliminating the adverse impacts of rapid proliferation of the microalgae on a culture environment. Penaeid shrimps have the advantages of specific pathogen-free property, rapid growth, strong disease resistance, strong stress resistance, short culture period, large and uniform formed size, high output, good investment efficiency and the like.

Description

technical field [0001] The invention relates to a method for constructing a prawn culture system without specific pathogens. Background technique [0002] Specific pathogen-free animals are animals in which no specific viruses, microorganisms or parasites exist. Specific pathogen-free refers to the specific current status of a specific pathogen, not the resistance of the pathogen or the status of the future pathogen. Specific pathogen-free is a concept of pathogen control, not a genotype or phenotype of animal genetics, which is fundamentally different from genetic concepts such as animal species, breeds, varieties or strains. Importation of specific pathogen-free animals will not result in the introduction of specific pathogens. [0003] Prawns belong to the genus Penaeidae of the order Decapod Crustacea. They are not only delicious, nutritious, but also fast-growing and high-yield. Shrimp aquaculture is the pillar industry of my country's mariculture industry. Since the...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 黄翔鹄吴灶和李长玲
Owner GUANGDONG OCEAN UNIVERSITY
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