High-density fish culturing method

A high-density, fishpond technology, applied in the field of fish farming, can solve the problems of difficulty in further increasing the breeding density, complicated oxygenation equipment, and inconvenient farming operations, etc., to solve the problem of low utilization rate of pure oxygen, increase the density of fish farming, and improve the economy. benefit effect

Inactive Publication Date: 2015-09-02
黄山四洋渔业科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problems of difficult to further increase the breeding density, compl...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1, a kind of fish pond

[0047] Such as Figure 1~6 Shown:

[0048] A fish pond, comprising a fish pond 1; a seal cover seat 25 on the inner wall of the fish pond 1, and a seal cover 4 is arranged on the seal cover seat 25; the distance from the seal cover seat 25 to the top of the fish pond 1 is equal to the height of the seal cover 4; The cover 4 is an arched structure, and an emptying valve 8 is arranged on the top of the sealing cover 4; an oxygen increasing pipe 27 is arranged in the fish pond 1 .

[0049] Described aquarium is also provided with high-pressure oxygen pipe 13 and low-pressure oxygen pipe 15, and high-pressure oxygen pipe 13 is provided with intake valve 31, and low-pressure oxygen pipe 15 communicates with oxygen-increasing pipe 27; High-pressure oxygen pipe 13 and low-pressure oxygen An oxygen regulator valve 14 is arranged between the tubes 15 , and the opening and closing device 43 inside the oxygen regulator valve 14 is controlled b...

Embodiment 2

[0064] Embodiment 2, a kind of high-density culture carp method

[0065] Carp is a main cultured fish, and the breeding density in factory farming can reach 100-130kg / m 3 , a high-density culture carp method is:

[0066] (1) put in fry: close bottom valve 19, cleaning valve 22, bottom overflow valve 17, upper overflow valve 24, fill water in fish pond 1, put into fry.

[0067] Calculate the number of fry:

[0068]

[0069] (2) Fish pond sealing: close the feeding valve 33, feeding valve 35, and throttle valve 36, open the emptying valve 8, place the sealing cover 4 on the sealing cover seat 25, and the air in the sealing cover 4 passes through the emptying valve 8 After the water body is filled with the space in the sealing cover, close the emptying valve 8; the high-pressure oxygen pipe 13 is connected to the intake valve 31, the low-pressure oxygen pipe 15 is connected to the oxygen regulator valve 14, and the regulator value of the oxygen regulator valve 14 is 1.96 kP...

Embodiment 3

[0089] Embodiment 3, a kind of method for high-density cultivation light-lipped fish

[0090] Light lip fish is a small stream fish with high requirements on dissolved oxygen and water quality. There are two methods of running water culture and cage culture, and the culture density is 5-7.17kg / m 3 . A kind of high-density breeding light lip fish method is:

[0091] (1) Throw in fry: same as embodiment 2.

[0092] Calculate the number of fry:

[0093]

[0094] (2) Sealing of fish pond: Same as Example 2.

[0095] (3) Water flow adjustment: the water inlet pipe 12 is connected to the water inlet valve 30; the water inlet valve 30 is opened, and the jet water 6 is sprayed obliquely towards the water surface 7 of the fish pond, forming a counterclockwise circulation and vortex; the jet water 6 is violently impacted and mixed with pure oxygen, and the oxygen Dissolve rapidly into the water, and the dissolved oxygen in the surface water of the fish pond reaches 37-49mg / L; the...

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Abstract

The invention relates to a high-density fish culturing method. The high-density fish culturing method includes the steps of 1), throwing fish fries in a fishpond; 2), sealing the fishpond; 3), regulating water flow; 4), feeding feed; 5), draining water and sewage; 6), fishing. According to the step 2) of fishpond sealing, sealing cover seats are arranged on the inner wall of the fishpond, a sealing cover of an arched structure is arranged on the sealing cover seats, a vent valve is arranged at the top of the sealing cover, and an oxygenation pipe is arranged in the fishpond; after the vent valve is opened, water is injected into the fishpond until the water level exceeds the sealing cover seats, and then the vent valve is closed; oxygen is fed into the fishpond, and a sealed pure-oxygen space is formed between the water surface and the position below the arched sealing cover by undissolved oxygen. The high-density fish culturing method solves the problems of difficulty in further improvement on culturing density, oxygenation equipment complexity, high energy consumption, low pure oxygen utilization ratio and inconvenience in culturing and operation in existing industrial fish culturing.

Description

technical field [0001] The invention relates to a method for raising fish, in particular to a fish pond and a method for high-density fish cultivation using the fish pond, and belongs to the technical field of fish cultivation. Background technique [0002] The dissolved oxygen content of water body is the main limiting factor of fish culture density. In high-density fish culture, the continuous flow and exchange of fish culture water body provides dissolved oxygen for fish and takes away metabolic waste. The water exchange rate in the fish pond is limited by the fish's adaptation to the flow rate, and the fish culture density in ordinary flowing water is only 10-20kg / m 3 , Artificial oxygenation can increase the dissolved oxygen content in the water body and increase the density of fish farming. Mechanical aeration is commonly used in factory fish farming, and under the condition of using air as the oxygen source, the density of fish farming can reach 30-50kg / m 3 ;Using p...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K63/00A01K63/04A01K61/02
CPCY02A40/81
Inventor 魏泽能汪勇翔林衍峰甘成叙候冠军徐道生刘群星胡秀珍汪国平
Owner 黄山四洋渔业科技有限公司
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