A water quality control method for indoor high-density temporary culture of prawn seedlings

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

Active Publication Date: 2015-08-19
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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  • A water quality control method for indoor high-density temporary culture of prawn seedlings

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Experimental program
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Effect test

Embodiment 1

[0030] A method for regulating and controlling the water quality of indoor high-density temporary breeding of prawn seedlings is carried out according to the following steps:

[0031] 1) Preparation before entering the pool:

[0032] A. Holding device settings: such as figure 1 As shown, the holding device includes a square holding pond 1, several diaphragms 2 and an aeration tube 3 located at the bottom of the holding pond. The holding pool 1 is provided with a water inlet, a drain and an air pipe 4, and its size is 5×5×1.2m. The diaphragms 2 are hung side by side at equal intervals in the holding tank 1, and the diaphragms 2 are parallel to each other and to the pool wall. Arrange glass lines 5 equidistantly along the pool 1 parallel to the pool wall direction, line spacing 50cm, two glass lines 5 near the pool wall end and the pool wall spacing 50cm, the pool surface is provided with support rope 7 along the glass line 5 vertical direction. Diaphragm 2 is a 40 mesh polye...

Embodiment 2

[0040] A method for regulating and controlling the water quality of indoor high-density temporary breeding of prawn seedlings is carried out according to the following steps:

[0041] 1) Preparation before entering the pool:

[0042] A. Setting of the holding device: The holding device includes a circular holding tank, several membranes and an aeration tube at the bottom of the holding tank. The holding pool is equipped with a water inlet, a drain, and an air pipe. The holding pool 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 to the pool wall. Arrange glass lines equidistantly along the holding pool parallel to the pool wall, and set support ropes along the vertical direction of the glass lines on the pool surface. The diaphragm is a 60-mesh polyethylene net, which is folded in half and pressed on four sides. The diaphragm is hung and fixed on th...

Embodiment 3

[0050] A method for regulating and controlling the water quality of indoor high-density temporary breeding of prawn seedlings is carried out according to the following steps:

[0051] 1) Preparation before entering the pool:

[0052] A. Setting of the holding device: The holding device includes an oval holding tank, several diaphragms and an aeration tube located at the bottom of the holding tank. The holding pool is equipped with a water inlet, a drain, and an air pipe. The holding pool 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 to the pool wall. Arrange glass lines equidistantly along the holding pool parallel to the pool wall, and set support ropes along the vertical direction of the glass lines on the pool surface. The diaphragm is a single-layer fiber cloth. The diaphragm is hung and fixed on the glass line by nylon rope. Adjust the suspen...

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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 controlling the water quality of indoor high-density temporary cultivation of prawn seedlings. Background technique [0002] Shrimp seedlings need to go through a certain period of concentrated temporary cultivation in small water bodies before they are placed in the big pond. The technical key to the success of the secondary desalination of shrimp seedlings is also the first stage of the grading culture of prawns, which occupies an extremely important position in the process of prawn farming. [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 deteriorates. Therefore, it is particularly important to control the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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