CN104322424A - A cage-type high-efficiency aquatic green culture pond - Google Patents

Abstract

The invention provides a fan cage type high-efficiency aquatic product green culture pond which comprises a culture pond, wherein the bottom of the culture pond is of a conical structure, a drain hole is formed in the middle of the culture pond, a plurality of suspended additives are filled in the culture pond to form a cage space, a jet pump is arranged at the lower part of the pond wall, a porous substrate and aeration equipment are paved at the bottom of the pond, a plurality of grid holes are uniformly distributed in the additives, the average pore diameter of each grid hole is 3-500 mm, a detachable blocking net is arranged below the liquid level of the culture pond, and the area of each blocking net hole is smaller than the area of the largest cross section of each additive. The invention has the advantages and positive effects that: creates a plurality of independent small spaces in the culture system, and aquatic animals can inhabit in the small spaces and are not interfered or attacked by other similar animals in the metamorphosis or the shelling process of the aquatic animals.

Description

A cage-type high-efficiency aquatic green culture pond

technical field

The invention belongs to the field of aquaculture, and in particular relates to a cage-type high-efficiency aquatic green culture pond.

Background technique

In current aquaculture ponds, aquatic animals are easily disturbed or attacked by other similar species during metamorphosis or shelling. For example, shrimp seedlings are easily attacked by other shrimp seedlings during the process of shelling during high-density breeding in the pond. , increase mortality, reduce production, and mutual crowding can also inhibit each other's growth.

Contents of the invention

The problem to be solved by the present invention is to provide a cage-type high-efficiency aquatic green culture pond, which creates countless independent small spaces, and is not disturbed or attacked by other similar species during its metamorphosis or shedding process.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a cage-type high-efficiency aquatic green culture pond, including a culture pond, the bottom of the culture pond is a conical structure, and a drainage hole is arranged in the middle, and the culture pond is filled with a number of suspended Add materials to form a cage space. The lower part of the pool wall is equipped with a jet pump, and the bottom of the pool is equipped with porous substrates and aeration equipment. There are a number of grid holes evenly distributed in the material, and the average aperture of the grid holes is 3mm. ~500mm, a detachable block is provided under the liquid surface of the breeding pond, and the area of the block mesh is smaller than the maximum cross-sectional area of the material.

Further, the porous substrate is coral stone or volcanic stone. Supplement the trace elements in the culture system, and reduce the disturbance of the water flow formed during the aeration process to the manure and residual bait at the bottom of the culture system.

Further, the aeration equipment is an aeration tube, an air stone or a nano air stone. The bottom of the culture system must be well aerated.

Further, the bottom of the pond is equipped with heating equipment and a temperature controller probe, which needs to control the water temperature of the aquaculture water body. Aeration at the bottom of the pond can fully circulate the water to keep the temperature of the entire water body constant.

Further, a light source is partially provided in the culture pond. When collecting farmed organisms, you can use the phototaxis of some organisms to increase the light source in the breeding water body, and the farmed organisms will swim to the vicinity of the light source by themselves.

Furthermore, the blocking net is set at a distance of 0-500 mm from the water surface in the culture pond.

Further, the blocking net is set at a distance of 10-500mm from the water surface in the culture pond.

The advantages and positive effects that the present invention has are:

1. Create countless independent small spaces in the breeding system. Aquatic animals can inhabit these small spaces and will not be disturbed or attacked by other similar species during their metamorphosis or shelling process. For example, shrimp seedlings are raised in high density in the pond During the moulting process, it is easy to be attacked by other shrimp seedlings. After using this system, the possibility of shrimp seedlings being attacked can be greatly reduced;

2. Since the material is lighter than water, it has good fluidity and is easy to clean and move;

3. Use the large enough surface area in the breeding system to cultivate beneficial bacteria, and the system can improve the water quality as much as possible, so as to change the water less or not.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of described adding material;

In the figure: 1-breeding pond; 2-blocking net; 3-adding material; 4-jet pump; 5-light source; 6-air stone; 7-coral stone; 8-heating equipment; 9-drainage hole; 10-grid grid hole.

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a cage-type high-efficiency aquatic green culture pond includes a culture pond 1, the bottom of which is a conical structure, and a drainage hole 9 is arranged in the middle, and some suspended additives are filled in the culture pond 1 3. A cage space is formed, a jet pump 4 is installed at the lower part of the pool wall, a porous substrate and aeration equipment are laid on the bottom of the pool, and a number of grid holes 10 are evenly distributed in the filling material 3, and the average aperture diameter of the grid holes 10 is 3mm ~500mm, the average pore diameter is equal to the result of dividing the corresponding pore volume and the corresponding specific surface.

A detachable block 2 is provided under the liquid surface of the culture pond 1, and the block 2 is located at a distance of 10 mm from the water surface in the culture pond 1. The area of the mesh of the block 2 is smaller than the area of the largest section of the filler 3. It is used to ensure that the feed 3 is below the water surface, so that aquatic animals can swim below the water surface.

For aquatic organisms with a relatively short breeding cycle, such as within 20 days, in order to supplement the trace elements in the breeding system and reduce the disturbance of the water flow formed during the aeration process to the feces and residual bait at the bottom of the breeding system, a porous type can be laid on the bottom of the pond. Substrates, such as corallite 7 or volcanic rock, etc. Harmful solids are attached to the bottom of the culture system as much as possible. During the breeding process, microbial flora can be attached to the surface of the additive 3, and the dissolved organic matter is mainly digested and decomposed by the microbial flora attached to the additive 3. During the breeding process, a small amount of sugar can be appropriately supplemented according to the growth status of the microorganisms on the surface of the additive 3. The cultivated microbial flora can improve the water quality as much as possible, and change the water less or not.

For aquatic organisms with a relatively long breeding cycle, such as grouper with a breeding cycle of more than 20 days, the bottom should be matched with a circular culture pond 1 with a conical bottom, and a jet pump 4 is placed on the edge of the pond wall to rotate the water Flow, slowly concentrate the feces in the middle of the bottom of the pool and discharge.

The aeration equipment is an aeration tube, an air stone 6 or a nano air stone. The bottom of the culture system must be well aerated. The bottom of the pool is provided with a heating device 8 and a thermostat probe. It is necessary to control the water temperature of the aquaculture water body. Aeration at the bottom of the pond can fully circulate the water to keep the temperature of the entire water body constant.

When collecting cultured organisms, the phototaxis of some organisms can be used, and the light source 5 is locally added in the culture pond 1, and the cultured organisms will swim to the vicinity of the light source 5 by themselves, and the harvest is relatively simple.

The material of the additive 3 can be selected from polypropylene, composite polypropylene material, or other organic or inorganic materials whose specific gravity is lighter than water. The preferred material is polypropylene. Polypropylene is a non-toxic, odorless, tasteless milky white high-crystallization polymer with a density of only 0.90-0.99g/cm ³ and is particularly stable in water with a water absorption rate of only 0.01% and a molecular weight of about 80,000 ~150,000. Adding material 3 can fill up the whole breeding space, also can be partially filled, can be used alone, also can be used in multiple, or the materials of different materials and volumes are mixed and used, according to the different choice of breeding organisms and water bodies. In some fish farming process, multiple or more feeding materials 3 are packaged and used, and a plurality of feeding net bags are dropped into a culture pond 1 .

Example 1

The breeding object is brine shrimp:

1. The water is not changed during the breeding cycle. Due to the evaporation of water, an appropriate amount of fresh water needs to be added to keep the water body at 60 liters and the water depth at 60 cm. Coral stone 7 is laid on the inner bottom of culture pond 1, and microporous bar air stone 6 and heating equipment 8 are placed at the bottom of culture pond 1 in addition, and 60 liters of water bodies are filled with material 3, and the average aperture of material 3 is 50mm, and the hole The wall thickness is 0.5 mm to create a cage space.

2. The Artemia larvae released were obtained by hatching eggs from the Great Salt Lake of the United States in 2013 for 24 hours; the stocking density was 4/ml, the average body length of the larvae was 0.55 mm, and the salinity was adjusted to 7%. The water temperature is controlled at 24°C.

3. Start feeding bait after 36 hours. The breeding bait is a mixture of ultra-finely pulverized rice bran, soybean milk and a small amount of yeast, filtered through a 300-mesh mesh bag, and fed 4 times a day during the breeding process.

4. Shade the entire aquaculture water body to prevent excessive aggregation due to the phototaxis effect of Artemia, and the aquaculture cycle is 18 days.

5. After 18 days, raise the water level in the culture pond 1, and add a light source 5 at the bottom to collect Artemia adults. At this time, the density of Artemia worms was 3/ml. The average length of the worm body is 11.5mm.

Control group: the same conditions, except that additive 3 was not added to the culture water body. On the seventh day, a large number of animals died, and the density dropped to 1 per milliliter. On the 18th day, the average body length was 1.2mm, and the breeding density was 0.02/ml.

Example 2

The breeding object is the gentian grouper in the rough stage:

1. Replace 5% of the seawater every day during the breeding cycle, keep the water body at 12 cubic meters, and the water depth is 1 meter. Place 6 microporous air stones per square meter at the bottom of the culture body, and the water temperature is 24-26°C.

2. Prepare 50 porous mesh bags with a volume of 100 liters and a mesh diameter of 10 mm. The diameter of a single hole in material 3 is 5mm, and the wall thickness of the hole is 0.5mm. These 50 feeding mesh bags are dropped into the breeding pond 1.

3. The body length of gentian grouper fry is 20-30mm when put in. The stocking density is 180 per cubic meter.

4. The breeding bait is Japanese artificial bait, which is fed 4 times a day during the breeding process. After breeding for 20 days, the measured quantity is 175 per cubic meter, and the body length is 50-80mm.

Control group: the same conditions, except that additive 3 was not added to the culture water body. On the 20th day, the number of the control group measured was 102 per cubic meter, and the body length was 70-80 mm.

Example 3

The breeding object is loach:

1. During the breeding cycle, 5% fresh water is replaced every day to keep the water body at 12 cubic meters and the water depth is 1 meter. Place 6 microporous air stones per square meter at the bottom of the culture body, and the water temperature is 24-26°C.

2. Prepare to fill the feeder 3 in the culture pond 1. The feeder 3 has an outer diameter of 25 mm and a height of 10 mm. The average aperture of each grid hole 10 inside is 4 mm, and the filling volume is about 11 cubic meters.

3. The body length of loach seedlings is 30-50mm when put in, and the stocking density is 180 per cubic meter.

4. The breeding bait is Japanese artificial bait, which is fed 4 times a day during the breeding process. After 30 days of breeding, the measured quantity is 172 per cubic meter, and the body length is 70-90mm.

Control group: the same conditions, except that additive 3 was not added to the culture water body. Because loach is particularly timid, the mortality rate in the breeding process is very high, and the dead loach will be detected every day. The number of the control group measured on the 20th day is 70 per cubic meter, and the body length is 60-70mm.

It can be seen from the above three examples that after adding the additive 3, the breeding density increases, the average body length of the breeding objects increases, and the yield and quality increase significantly.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (7)

1. A cage-type high-efficiency aquatic green culture pond, comprising a culture pond (1), the bottom of the culture pond (1) is a conical structure, and a drainage hole (9) is provided in the middle, it is characterized in that: the culture pond (1) It is filled with a number of suspended additives (3) to form a cage space. A jet pump (4) is provided at the lower part of the pool wall, and a porous substrate and aeration equipment are laid on the bottom of the pool. The additives (3) are evenly distributed inside There are several grill holes (10), the average aperture of the grill holes (10) is 3 mm to 500 mm, and a detachable block (2) is arranged under the liquid surface of the culture pond (1), and the area of the mesh (2) is Less than the area of the largest cross-section of the material (3). 2. The cage-type high-efficiency aquatic green culture pond according to claim 1, characterized in that: the porous substrate is coral stone (7) or volcanic stone. 3. The cage-type high-efficiency aquatic green culture pond according to claim 2, characterized in that: the aeration equipment is an aeration tube, an air stone (6) or a nano air stone. 4. The cage-type high-efficiency aquatic green culture pond according to any one of claims 1-3, characterized in that: the bottom of the pond is provided with a heating device (8) and a temperature controller probe. 5. The cage-type high-efficiency aquatic green culture pond according to claim 4, characterized in that: a light source (5) is partially provided in the culture pond (1). 6. The cage-type high-efficiency aquatic green culture pond according to claim 1, 2, 3 or 5, characterized in that: the screen (2) is set in the culture pond (1) at a distance of 0-500mm from the water surface. 7. The cage-type high-efficiency aquatic green culture pond according to claim 6, characterized in that: the block (2) is set in the culture pond (1) at a distance of 10-500mm from the water surface.