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Deep water cage culture apparatus of sturgeon

A deep-water net cage and sturgeon technology, which is applied in the field of fish farming, can solve the problems of restricting the sustainable development of sturgeon net cage culture, reducing the efficiency of sturgeon net cage culture, and polluting the breeding water, so as to facilitate the feeding of sturgeon and promote the growth of sturgeon. The effect of growth and improvement of breeding efficiency

Inactive Publication Date: 2019-03-19
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous expansion of aquaculture scale and the increase of aquaculture yield, the residual bait and biological excrement in the aquaculture process are likely to pollute the aquaculture water, which will lead to an increase in diseases and a decrease in the quality of the sturgeon. The reduction of breeding efficiency restricts the sustainable development of sturgeon cage culture

Method used

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  • Deep water cage culture apparatus of sturgeon
  • Deep water cage culture apparatus of sturgeon
  • Deep water cage culture apparatus of sturgeon

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as Figure 1-6As shown, the sturgeon deep-water cage culture device includes a floating platform 2, and the inner and outer peripheral edges of the floating platform 2 are respectively fixed with a net cage main body 22 and a semi-closed box body 7, and a feeding device 14 is provided in the middle of the net cage main body 22 top. , the feeding device 14 includes a material storage cavity 143, the bottom of the material storage cavity 143 is connected with a feeding hopper 144 with a discharge hole 141, and the top of the inner cavity of the feeding hopper 144 is provided with a lifting rod 146 collinear with the axis of the feeding hopper 144, A brush body 147 is installed at the end of the retractable rod 146, and the bottom surface of the brush body 147 is "S" shaped. Floating platform 2, net cage main body 22, and semi-closed box body 7 are arranged in cooperation, which effectively ensures the water circulation of the culture net cage, keeps the water quality...

Embodiment 2

[0037] Embodiment 2: When the sturgeon deep-water cage culture device among the present invention is actually used: in the breeding process, feeding device 14 puts bait into dispersing device 12, and dispersing device 12 disperses bait evenly, completes the feeding of sturgeon, The semi-enclosed box body 7 is set on the net cage main body 22, makes the cultivation device form a semi-closed state, wherein, the external water body enters in the net cage main body 22 through the water inlet device, and the water body in the cultivation device can pass through the water outlet 3 and the drain port 18 is discharged, and the water body discharged from the drain port 18 enters the purification tank through the sewage pipe 21, realizing the circulation of the water body in the breeding process, and avoiding the pollution caused by residual bait and biological excrement water body.

Embodiment 3

[0039] Contrast experiment: select 5 sturgeon deep-water net cage culture devices (experimental group) of the present invention and 5 common deep-water net cages (control group) to cultivate sturgeon in a certain sea area in Zhoushan, choose healthy, average weight identical sturgeon 1000 tails (500 tails for each male and female) were thrown into 10 net cages in two groups of experiments for breeding. During the breeding process, they were fed twice a day at 6:30 and 18:30 to ensure the amount of bait and bait put in. are the same;

[0040] The water depth of the cage erection site is 15m, the transparency is 5-7m, the surface water temperature is 12-30°C, the water temperature at 5m below the water surface is 14-25°C, the dissolved oxygen is 6.0-7.5mg / L, and the pH is 7.5. After breeding for 120, observe and compare the two Changes in groups of experimental sturgeon;

[0041] compare results:

[0042]

[0043] Through the above comparative experiments, it can be seen th...

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Abstract

The invention discloses a deep water cage culture apparatus of sturgeon, comprising a floating platform. A cage body and a semi-enclosed cage are fixedly connected to the inner and outer peripheries of the floating platform respectively; a feeding device is arranged at the top center of the cage body and includes a storage chamber; a feeding bucket with a discharge hole is connected to the bottomend of the storage chamber; a lifting rod coaxial to the feeding bucket is arranged at the top of an inner cavity of the feeding bucket; a brush is mounted at the tail end of the lifting rod; the bottom of the brush is in S shape. The deep water cage culture apparatus of sturgeon can ensure culture water quality, improve culture environment, prevent a water body from being polluted, benefit the enhancement of activity of sturgeon's digestive enzyme, and promote the growth of sturgeon.

Description

technical field [0001] The invention relates to the technical field of fish farming, in particular to a deep-water cage culture device for sturgeon. Background technique [0002] Sturgeon is a benthic fish with a very narrow feeding habit. It is a carnivorous fish. In the river, it mainly feeds on some small or slow-moving benthic animals. In the ocean, it mainly feeds on fish, followed by crustaceans. There are few molluscs. Sturgeon is a freshwater fish species. It generally lives in running water and likes clear water quality. [0003] Sturgeon cage culture in my country started in 2000. Due to its characteristics of low infrastructure investment, high output, and good economic benefits, sturgeon aquaculture has developed rapidly and has become one of the main methods of sturgeon production. However, with the continuous expansion of aquaculture scale and the increase of aquaculture yield, the residual bait and biological excrement in the aquaculture process are likely to...

Claims

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Application Information

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IPC IPC(8): A01K61/60A01K61/65A01K61/80A01K63/04
CPCA01K63/04A01K63/042A01K63/045A01K61/60A01K61/65A01K61/80Y02A40/81
Inventor 周真真黄友坤张建设
Owner ZHEJIANG OCEAN UNIV
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