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Water quality control method for indoor high-density temporary shrimp seed culture

A water quality control, high-density technology, applied in chemical instruments and methods, fish farming, biological water/sewage treatment, etc., can solve problems such as accumulation of toxic pollutants, single artificial feed, high feeding density, etc., to reduce wastewater discharge. , the effect of increasing the temporary holding density and reducing environmental pollution

Active Publication Date: 2013-09-11
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the indoor high-density temporary culture system of prawns, due to the high stocking density, single artificial feed, relatively simple ecosystem, and low environmental carrying capacity, it is easy to cause the rapid accumulation of toxic pollutants in the water body, resulting in water quality deterioration

Method used

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  • Water quality control method for indoor high-density temporary shrimp seed culture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for regulating the water quality of indoor high-density temporary rearing of shrimp larvae is carried out as follows:

[0031] 1) Preparation before entering the pool:

[0032] A. Temporary maintenance device settings: such as figure 1 As shown, the temporary culturing device includes a rectangular temporary culturing tank 1, a plurality of membranes 2, and an aeration pipe 3 at the bottom of the temporary culturing tank. Temporary tank 1 is provided with water inlet, outlet and gas pipe 4, and its size is 5×5×1.2m. The diaphragms 2 are suspended side by side in the holding tank 1 at equal intervals, and the diaphragms 2 are parallel to each other and parallel to the tank wall. The glass lines 5 are arranged equidistantly along the holding tank 1 parallel to the wall of the tank, the line spacing is 50cm, the distance between the two glass lines 5 near the pool wall and the tank wall is 50cm, and the support rope 7 is set on the surface of the tank along the verti...

Embodiment 2

[0040] A method for regulating the water quality of indoor high-density temporary rearing of shrimp larvae is carried out according to the following steps:

[0041] 1) Preparation before entering the pool:

[0042] A. Temporary culture device setup: Temporary culture device includes a circular temporary culture tank, several membranes and aeration pipes at the bottom of the temporary culture tank. The temporary tank is equipped with water inlet, outlet and gas pipe. The temporary tank is 1.4m high and has an area of ​​10 m 2 . The diaphragms are suspended side by side in the holding tank at equal intervals, and the diaphragms are parallel to each other and parallel to the tank wall. Glass lines are arranged equidistantly along the holding tank parallel to the direction of the pool wall, and support ropes are arranged on the surface of the tank in the direction perpendicular to the glass line. The diaphragm is a 60-mesh polyethylene net, which is folded in half and pressed by the ...

Embodiment 3

[0050] A method for regulating the water quality of indoor high-density temporary rearing of shrimp larvae is carried out according to the following steps:

[0051] 1) Preparation before entering the pool:

[0052] A. Temporary culture device setup: Temporary culture device includes an oval temporary culture tank, several membranes and aeration pipes at the bottom of the temporary culture tank. Temporary tank is equipped with water inlet, outlet and gas pipe. Temporary tank is 1.5m high and has an area of ​​50m 2 . The diaphragms are suspended side by side in the holding tank at equal intervals, and the diaphragms are parallel to each other and parallel to the tank wall. Glass lines are arranged equidistantly along the holding tank parallel to the direction of the pool wall, and support ropes are arranged on the surface of the tank in the direction perpendicular to the glass line. The diaphragm is a single-layer fibrous cloth. The diaphragm is suspended and fixed on the glass wi...

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Abstract

The invention relates to a water quality control method for indoor high-density temporary shrimp seed culture. The method includes the steps of ponding preparations of temporary culture device arrangement, culture water disinfection, probiotics adhesion and inoculation and water environment regulation, and temporary culture process water quality control of early-period water quality control in temporary culture and later-period water quality control in temporary culture. Diaphragms and an aerating pipe are arranged in a temporary culture pond of the temporary culture device. The method has the advantages that since the diaphragms are hung in the temporary culture water, shrimp seed perching and adhesion area is increased, and temporary culture density is increased; bait particles fed in the early period are evenly distributed in the water and mostly adsorbed on the surfaces of the diaphragms by the aid of the rough surfaces of the diaphragms and water flow drive caused by even aeration, and accordingly specification irregularity caused by ingestion difference is reduced; biological membranes can be formed on the surfaces of the diaphragms to absorb and degrade suspended organic chips, residual feeds, faeces, water soluble nitrogenous pollutants in the water, good culture environment is maintained, wastewater emission in the culture process is reduced, and environmental pollution is reduced. Besides, the method can be applied to shrimp culture.

Description

Technical field [0001] The invention relates to a method for cultivating prawns, in particular to a method for regulating and controlling water quality in an indoor high-density temporary culture of prawns. Background technique [0002] Shrimp larvae need to go through a certain stage of small water intensive temporary cultivation before being put into the pond to grow. It is an important measure to obtain strong seedlings and large seedlings, accurately grasp the seedling density, increase the survival rate and save the growing time. The technical key to the success of the second desalination of shrimp larvae is also the first stage of grading shrimp farming, which occupies an extremely important position in the process of shrimp breeding. [0003] In the indoor high-density shrimp rearing system, due to higher stocking density, single artificial feed, simpler ecosystem, and low environmental carrying capacity, it is easy to cause the rapid accumulation of toxic pollutants in the ...

Claims

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Application Information

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IPC IPC(8): A01K61/00C02F9/14C02F3/34C02F1/50
CPCY02A40/81
Inventor 董宏标张家松罗愉城李卓佳陈亮亮文国樑梁柱华
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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