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Method reducing fish culture pond water body nitrogen phosphor content and improving culture output

A technology for fish farming and ponds, applied in fish farming, applications, climate change adaptation, etc., can solve the problems of drugs reducing the quality of fish products, high nitrogen and phosphorus content in water, and the impact of breeding benefits, so as to improve the quality of fish products, Effects of improving water quality and ensuring food safety

Inactive Publication Date: 2016-09-21
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pond aquaculture is a main method of freshwater aquaculture in my country. At present, under the condition of high aquaculture density, pond aquaculture has problems such as high nitrogen and phosphorus content in the water body, low bait coefficient, and affected aquaculture benefits. At the same time, Due to the use of drugs for disease prevention and treatment in water bodies, the aquaculture water will pollute the environment after being discharged, and the residue of drugs will also reduce the quality of fish products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for reducing nitrogen and phosphorus content in fish culture pond water body and increasing culture output, comprising the steps of:

[0024] 1) Select a site with sufficient water sources, convenient water intake and drainage, no pollution sources around, good water retention performance, complete breeding facilities, and an area of ​​1860m2 2 equipped with an aerator, cover the drain with an escape net, drain the pond water in winter, clean up the silt at the bottom of the pond manually or mechanically, level the bottom of the pond after full exposure, heighten and strengthen the pond foundation, and repair the slope and pond Ridges, maintenance of ditches, waterways, removal of sundries around ponds, killing grass seeds and insect eggs, use 0.28kg / m 17 days before stocking 2 Disinfect quicklime with water, the water depth is 18cm, and then rake the bottom mud evenly, add water to the pond to a depth of 1.8m 16 days after disinfection;

[0025] 2) plant emba...

Embodiment 2

[0033]A method for reducing nitrogen and phosphorus content in fish culture pond water body and increasing culture output, comprising the steps of:

[0034] 1) Choose a site with sufficient water sources, convenient water intake and drainage, no pollution sources around, good water retention performance, complete breeding facilities, and an area of ​​1680m2 2 equipped with an aerator, cover the drain with an escape net, drain the pond water in winter, clean up the silt at the bottom of the pond manually or mechanically, level the bottom of the pond after full exposure, heighten and strengthen the pond foundation, and repair the slope and pond ridge, maintenance of ditches, waterways, bait racks, removal of sundries around the pond, killing grass seeds and insect eggs, disinfecting with 0.27kg / m2 quicklime water 19 days before stocking, the water depth is 20cm, and then rake the bottom mud evenly, Add water to the pond to a depth of 2.0m 15 days after disinfection;

[0035] 2)...

Embodiment 3

[0043] A method for reducing nitrogen and phosphorus content in fish culture pond water body and increasing culture output, comprising the steps of:

[0044] 1) Select a site with sufficient water sources, convenient water intake and drainage, no pollution sources around, good water retention performance, complete breeding facilities, and an area of ​​1750m2 2 equipped with an aerator, cover the drain with an escape net, drain the pond water in winter, clean up the silt at the bottom of the pond manually or mechanically, level the bottom of the pond after full exposure, heighten and strengthen the pond foundation, and repair the slope and pond Ridges, maintenance of ditches, waterways, bait racks, removal of sundries around the pond, killing grass seeds and insect eggs, use 0.275kg / m 18 days before stocking 2 Disinfect the quicklime with water, the water depth is 19cm, and then rake the bottom mud evenly, add water to the pond to a depth of 1.9m 15.5 days after disinfection; ...

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Abstract

The invention relates to a method reducing fish culture pond water body nitrogen phosphor content and improving culture output; the method comprises the following steps: 1, setting a pond; 2, culturing pond plants; 3, culturing biofloc; 4, inputting fish fingerlings; 5, feeding at intermittences; 6, water quality management; 7, disease control. The novel method can comprehensively improve water quality, can reduce the pond nitrogen phosphor content, can improve bait utilization efficiency, and can improve feedable fish output in the same time.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for reducing the nitrogen and phosphorus content in water body of a fish breeding pond and increasing the breeding output. Background technique [0002] Pond aquaculture is a main method of freshwater aquaculture in my country. At present, under the condition of high aquaculture density, pond aquaculture has problems such as high nitrogen and phosphorus content in the water body, low bait coefficient, and affected aquaculture benefits. At the same time, Due to the use of medicines for disease prevention and treatment in the water body, the aquaculture water will pollute the environment after being discharged, and the residue of medicines will also reduce the quality of fish products. In order to obtain better economic benefits, ecological benefits and social benefits, it is necessary to adopt new theories, new technologies and new methods to improve the technical leve...

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 韩冬杨严鸥杨云霞解绶启朱晓鸣金俊琰刘昊昆聂光汉
Owner INST OF AQUATIC LIFE ACAD SINICA
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