In-situ water treatment method for portunus trituberculatus culture pond

A technology for Portunus trituberculatus and in-situ water treatment, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Death, increased costs and other issues, to achieve the effect of reducing the risk of eutrophication, reducing breeding costs, and reducing costs

Active Publication Date: 2021-03-12
JIANGSU OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, in order to prevent the eutrophication of the water body from affecting the growth and survival of the Portunus trituberculatus in the breeding process, it is usually necessary to regularly change the water in the pond, which increases the cost. It will affect the stability of the living environment of Portunus trituberculatus and may lead to mass death of Portunus trituberculatus

Method used

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  • In-situ water treatment method for portunus trituberculatus culture pond

Examples

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Effect test

Embodiment 1

[0023] A method for in-situ water treatment in a swimming crab culture pond, specifically comprising the following steps:

[0024] (1) Pre-breeding preparation: trim the pond to make the bottom flat, and keep the water depth of the pond at 2.5m. After the pond is filled with water, add chicken manure, duck manure, humus and amino acids to the pond, and use a polyethylene net near the central area of ​​the pond. Enclosed as a jellyfish breeding area, the area of ​​the polyethylene net is approximately circular, and the edge of the polyethylene net is 20cm higher than the water surface of the pond, the mesh of the polyethylene net is 20, and the area of ​​the polyethylene net accounts for 20% of the total area of ​​the pond ;

[0025] (2) Jellyfish breeding: The temperature of the pond water body is kept stable above 16°C, and the jellyfish seedlings are placed in the jellyfish breeding area. The time for releasing the jellyfish seedlings is from mid-to-late May to early Septemb...

Embodiment 2

[0030] A method for in-situ water treatment in a swimming crab culture pond, specifically comprising the following steps:

[0031] (1) Pre-breeding preparation: trim the pond to make the bottom flat, and keep the water depth of the pond at 2.5m. After the pond is filled with water, add chicken manure, duck manure, humus and amino acids to the pond, and use a polyethylene net near the central area of ​​the pond. Enclosed as a jellyfish breeding area, the polyethylene net area is approximately circular, and the edge of the polyethylene net is 25cm higher than the water surface of the pond. The mesh of the polyethylene net is 40, and the polyethylene net area accounts for 25% of the total area of ​​the pond. ;

[0032] (2) Jellyfish breeding: The temperature of the pond water body is kept stable above 16°C, and the jellyfish seedlings are placed in the jellyfish breeding area. The time for releasing the jellyfish seedlings is from mid-to-late May to early September;

[0033] (3)...

Embodiment 3

[0037] A method for in-situ water treatment in a swimming crab culture pond, specifically comprising the following steps:

[0038](1) Pre-breeding preparation: trim the pond to make the bottom flat and keep the pond water depth at 3m. After the pond is filled with water, add chicken manure, duck manure, humus and amino acids to the pond, and surround the pond with a polyethylene net near the central area As a jellyfish breeding area, the area of ​​the polyethylene net enclosure is approximately circular, and the edge of the polyethylene net is 30cm higher than the water surface of the pond, the mesh of the polyethylene net is 50, and the area of ​​the polyethylene net enclosure accounts for 30% of the total area of ​​the pond;

[0039] (2) Jellyfish breeding: The temperature of the pond water body is kept stable above 16°C, and the jellyfish seedlings are placed in the jellyfish breeding area. The time for releasing the jellyfish seedlings is from mid-to-late May to early Septe...

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Abstract

The invention discloses an in-situ water treatment method for a portunus trituberculatus culture pond in the technical field of aquaculture. The in-situ water treatment method comprises the followingsteps of (1) early-stage culture preparation; (2) jellyfish culture; (3) portunus trituberculatus culture; and (4) daily management. According to the invention, jellyfishes can eat portunus trituberculatus residual feed and zooplankton, and frequent fertilizer and water are not needed, so that the culture cost can be reduced, and the growth speed of the jellyfishes is increased; compared with a traditional single species culture mode for portunus trituberculatus culture, the method has the advantages that water resources are saved, the pollution to the environment is reduced, and relatively good ecological benefits are achieved; and compared with jellyfish culture, the method has the advantages that bait feeding is reduced, limited resources are reasonably utilized, secondary pollution isavoided, and relatively good economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for in-situ water treatment in swimming crab culture ponds. Background technique [0002] In recent years, the culture of Portunus trituberculatus has developed rapidly. However, the bait in the breeding process of Portunus trituberculatus is mainly wild fish. Not only the benefit is not high, but also the bait utilization rate is low, and it is easy to pollute the aquaculture water body. Therefore, environmental pollution problems such as water body eutrophication caused by Portunus trituberculatus breeding have increasingly attracted people's attention. Inorganic salts such as ammonia nitrogen and nitrite nitrogen in the aquaculture wastewater not only cause environmental pollution, but also threaten the growth of Portunus trituberculatus, and even directly cause a large number of Portunus trituberculatus to die. Utilizing the assimilation of phytoplankton and z...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01K61/20C02F3/32
CPCA01K61/20A01K61/59C02F3/32Y02A40/81
Inventor 葛红星董志国申欣李健尼倩阎斌伦柳佳玲陆梓瑜彭永兴
Owner JIANGSU OCEAN UNIV
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