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Overwintering method for aquaculture through brackish omni-directional flowing water

An aquaculture, all-round technology, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as uncontrollable disease, reduce mortality of overwintering shad, avoid the production of miscellaneous bacteria or harmful microorganisms, improve adaptation Ability and disease resistance, the effect of improving the survival rate

Active Publication Date: 2016-09-07
SUZHOU FISHSEEDS BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the mortality rate of overwintering shad, farming owners usually use a large amount of drugs, even illegal anti-inflammatory drugs on the body surface, which cannot control the disease

Method used

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  • Overwintering method for aquaculture through brackish omni-directional flowing water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: brackish water all-round flowing water body culture of shad

[0029] A kind of brackish water all-round flowing water body culture method of shad, comprises the following steps:

[0030] 1) Preparation of shad culture ponds: The fish ponds can be round or rectangular with rounded corners, with an area of ​​50-300 square meters and a water depth of 0.8-2.0 meters. Aeration or wheel aerators can be used to increase oxygen in fish ponds. The aeration pipes are arranged around the fish pond to form a bottom-up water flow, and the water pumps are arranged on the diagonal to form a one-way circulation.

[0031] 2) Preparation of circulating water purification system: water purification can be divided into four parts, namely solid waste separation, aerobic nitrification, anaerobic nitrification and ultraviolet disinfection. The fish pond sewage enters the solid-state separator through the outlet pipe at the bottom, and the clear water in the upper layer enters ...

Embodiment 2

[0036] Embodiment 2 The brackish water all-round flowing water body culture of shad

[0037] 1) Preparation of shad culture ponds: The fish ponds can be round or rectangular with rounded corners, with an area of ​​50-300 square meters and a water depth of 0.8-2.0 meters. Aeration or wheel aerators can be used to increase oxygen in fish ponds. The aeration pipes are arranged around the fish pond to form a bottom-up water flow, and the water pumps are arranged on the diagonal to form a one-way circulation.

[0038] 2) Preparation of circulating water purification system: water purification can be divided into four parts, namely solid waste separation, aerobic nitrification, anaerobic nitrification and ultraviolet disinfection. The fish pond sewage enters the solid-state separator through the outlet pipe at the bottom, and the clear water in the upper layer enters the aerobic nitrification tank, and then enters the anaerobic nitrification tank. The treated clean water enters the...

Embodiment 3

[0043] Embodiment 3 The brackish water all-round flowing water body culture of shad

[0044] By using micronutrient liquid fish feed and microbial preparations, shad were simultaneously cultured in greenhouses, cages and brackish water in greenhouses, and the specific contents were as follows:

[0045] 1) Preparation of shad culture ponds: The fish ponds can be round or rectangular with rounded corners, with an area of ​​50-300 square meters and a water depth of 0.8-2.0 meters. Aeration or wheel aerators can be used to increase oxygen in fish ponds. The aeration pipes are arranged around the fish pond to form a bottom-up water flow, and the water pumps are arranged on the diagonal to form a one-way circulation.

[0046] 2) Preparation of circulating water purification system: water purification can be divided into four parts, namely solid waste separation, aerobic nitrification, anaerobic nitrification and ultraviolet disinfection. The fish pond sewage enters the solid-state...

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Abstract

The invention discloses an overwintering method for aquaculture through brackish omni-directional flowing water. The method comprises the following steps: preparation of an aquaculture pool or a net cage; preparation of a recirculating water purification system; preparation of a microecological environment of water in the aquaculture pool; feed feeding and breeding; and a breeding model for overwintering of aquatic products through the brackish omni-directional flowing water. According to the invention, through the process of the brackish omni-directional flowing water, a healthy microbial community can be activated and maintained, so the aquaculture pool is free of any dead corner, and infectious microbes or harmful microorganisms are avoided from being produced in an anaerobic environment; a probiotic community continuously reproduces, so immunity is improved; and brackish water can inhibit the reproduction of water molds and accelerates the repair of body-surface frostbite. Through comprehensive measures like construction of a brackish flowing water breeding ecological environment and a health-care measure of nutrition oral administration, common stress responses of an aquaculture variety to low temperature, deterioration of water quality and the like in winter are reduced; the physique of the aquaculture variety is strengthened; and adaptive capacity to low temperature and disease-resisting ability are improved.

Description

technical field [0001] The invention belongs to the field of aquaculture, in particular to an aquaculture overwintering method for brackish water flowing in all directions. Background technique [0002] Since the American shad (Alosa sapidissima) was introduced to China from the United States in 2003, it has formed a certain scale of breeding in many southern provinces and cities in China, and has become one of the most valuable domestic breeding species. Shad is a typical anadromous migratory warm-water fish, and its suitable growth temperature is 15-25°C. At present, the main farming methods for shad are greenhouse farming, industrial farming or cage culture in southern reservoirs. The survival rate of shad in winter is One of the restrictive factors restricting the large-scale development of shad farming. [0003] The water temperature control of greenhouse aquaculture or indoor factory aquaculture mainly relies on greenhouse insulation and groundwater to maintain water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 刘青华须藤直美
Owner SUZHOU FISHSEEDS BIOLOGICAL TECH CO LTD
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