An intensive composite ecological symbiotic hierarchical culture system for Procambarus clarkii

Abstract

The invention discloses an intensive composite ecological symbiotic hierarchical culture system for Procambarus clarkii, comprising: a support seat; a culture box, which is fixed on the support seat, an aquatic plant culture layer is arranged inside the culture box, which divides the inside of the culture box into a mature shrimp culture area and a juvenile shrimp culture area from top to bottom, and a crayfish recovery door is opened on the side wall of the culture box corresponding to the juvenile shrimp culture area; a first culture enclosure, which is laid on the aquatic plant culture layer; a plurality of juvenile shrimp separation pipes, which are all embedded on the aquatic plant culture layer, one end of the juvenile shrimp separation pipe is located below the mesh of the first culture enclosure, and the other end extends downward into the juvenile shrimp culture area; a juvenile shrimp bait delivery pipe, which is fixed on the inner box wall of the culture box and extends downward into the juvenile shrimp culture area. The system can realize the layered culture of mature shrimp and juvenile shrimp, and no need to spend a lot of time and manpower to separate mature shrimp and juvenile shrimp, which saves time and labor, has low culture cost, and can also culture aquatic animals to realize the composite ecological symbiotic culture function.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture, and more particularly to an intensive composite ecological symbiotic graded culture system for Procambarus clarkii. Background Art

[0002] Procambarus clarkii, commonly known as freshwater crayfish, belongs to the class Crustacea, order Decapoda, family Cherax, and genus Procambarus. It is one of the four common freshwater economically farmed shrimps in my country. It is deeply loved by consumers for its bright color and delicious taste, forming a unique crayfish food culture and creating regional brands, such as "Qianjiang Crayfish" and "Xuyi Crayfish".

[0003] At present, when culturing Procambarus clarkii in my country, the young shrimps produced by female shrimps are cultured in the same culture layer as mature shrimps (prawns). Because crayfish are easy to fight, young shrimps are not easy to survive. At this time, it takes a lot of time and manpower to salvage the young shrimps, which is not only time-consuming and labor-intensive, but also increases the cost of cultivation. In addition, the cultivation of Procambarus clarkii generally adopts traditional cultivation methods such as rice fields and ponds. The cultivation is mainly affected by the natural environment, the cultivation density is not easy to control, and it is easily affected by natural uncontrollable factors, and the yield is unstable. In addition, the main problem of culturing Procambarus clarkii is the treatment of pollutants. The pollutants in the water are generally composed of bait that has not been consumed in the cultivation process, Procambarus clarkii emissions, etc., and the main components are ammonia, phosphorus, and sulfur. To solve this problem, a large amount of water changes are often required to alleviate the damage caused by harmful substances, but water changes also bring some adverse effects, such as shrimp stress reactions, causing a large number of mature shrimp deaths, seriously affecting the efficiency of cultivation. At the same time, the discharge of a large amount of aquaculture wastewater causes pollution and waste of water resources, which invisibly increases the cost of cultivation. In addition, at present, when farming crayfish, only crayfish are farmed in ponds, which makes the farming ecosystem chain single, resulting in system instability and susceptibility to disease.

[0004] Therefore, how to provide a system for intensively culturing Procambarus clarkii in a graded manner using the principle of ecological symbiosis, in which juvenile shrimps and mature shrimps can be cultured together in the same water body without having to fish out the juvenile shrimps; and the culture water body can be recycled repeatedly to reduce pollution and waste of water resources; and the impact of seasonality and the natural environment can be reduced, that is, how to provide a system for intensively culturing Procambarus clarkii in a graded manner using the principle of ecological symbiosis is a problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] In view of this, the present invention provides an intensive composite ecological symbiotic graded culture system for Procambarus clarkii, which can culture young shrimps and mature shrimps together in the same water body without fishing out the young shrimps; the culture water body can be repeatedly recycled to reduce pollution and waste of water resources; and the system can reduce the impact of seasonality and natural environment, and improve the yield and ecological benefits of culture.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] An intensive composite ecological symbiotic hierarchical culture system for Procambarus clarkii, comprising:

[0008] Support seat;

[0009] A breeding box, wherein the bottom end of the breeding box is fixedly connected to the top end of the support seat, an aquatic plant breeding layer is provided inside the breeding box, the aquatic plant breeding layer divides the inside of the breeding box into a mature shrimp breeding area and a juvenile shrimp breeding area, and a crayfish recovery door is provided on the side wall of the breeding box corresponding to the juvenile shrimp breeding area;

[0010] a first breeding seine, which is located in the mature shrimp breeding area and laid on the upper surface of the aquatic plant breeding layer;

[0011] A juvenile shrimp separation tube, wherein the juvenile shrimp separation tube is in multiple numbers and is embedded in the aquatic plant culture layer, one end of the juvenile shrimp separation tube is located below the mesh of the first culture enclosure net, and the other end of the juvenile shrimp separation tube passes downward through the aquatic plant culture layer and extends into the juvenile shrimp culture area;

[0012] A juvenile shrimp bait delivery pipe is fixed on the inner box wall of the breeding box, and one end of the juvenile shrimp bait delivery pipe passes through the first breeding enclosure and the aquatic plant breeding layer and extends downward into the juvenile shrimp breeding area.

[0013] It can be seen from the above technical scheme that compared with the prior art, the present invention discloses an intensive composite ecological symbiotic graded breeding system for Procambarus clarkii, in which crayfish are cultured in the first breeding enclosure in the mature shrimp breeding area. When the crayfish are mature, the mature shrimp hatch into juvenile shrimps, and the juvenile shrimps crawl into the juvenile shrimp breeding area through the juvenile shrimp separation tube, thereby realizing automatic stratification and separate breeding of mature shrimps and juvenile shrimps, thereby eliminating the need to spend a lot of time and manpower to salvage the juvenile shrimps to achieve the separation of mature shrimps and juvenile shrimps, saving time and labor, reducing manpower and breeding costs, and also improving the survival rate of juvenile shrimps. When catching mature shrimps, it is only necessary to recycle and pull the first breeding enclosure to quickly catch the mature shrimps; when the crayfish in the lower layer are mature and need to be caught, the crayfish recovery door is opened, the water in the breeding box is drained, and then the crayfish are taken out of the crayfish recovery door using tools; in addition, the aquatic plant breeding layer can be planted with water plants, which is convenient for providing a shelter for the crayfish in the first breeding enclosure, reducing the problem of production reduction due to the easy fighting of crayfish, and the planted water plants can also be used as bait for crayfish, saving bait costs. In addition, the system is convenient for artificial breeding, reduces the impact of seasonality and natural environment, and increases the breeding yield of crayfish.

[0014] Furthermore, a plurality of heating and supplementary lighting lamps are installed on the aquatic plant breeding layer.

[0015] The beneficial effect of adopting the above technical solution is that the heating fill light can provide appropriate light and temperature environmental conditions for the aquatic plants planted on the aquatic plant breeding layer, ensuring that the aquatic plants can grow throughout the year and extending the production cycle of the aquatic plants.

[0016] Furthermore, a second breeding fence is arranged in the juvenile shrimp breeding area near the other end of the juvenile shrimp separation tube, the juvenile shrimp breeding area is located above the second breeding fence, and the aquatic animal breeding area is located below the second breeding fence, one end of the juvenile shrimp bait delivery pipe is located above the second breeding fence, an aquatic animal recovery door is provided on the side wall of the breeding box corresponding to the aquatic animal breeding area, the aquatic animal bait delivery pipe is fixed on the inner wall of the breeding box, and one end thereof passes through the first breeding fence, the aquatic plant breeding layer, the juvenile shrimp breeding area, the second breeding fence and extends downward into the aquatic animal breeding area.

[0017] The beneficial effect of adopting the above technical scheme is that aquatic animals can be cultured while breeding crayfish, so that the ecological system chain of the breeding box is diversified, ecological composite breeding is realized, system stability is ensured, the occurrence of crayfish diseases is reduced, the output and quality of crayfish breeding are improved, and the ecological benefits of breeding are improved; and when recovering crayfish in the juvenile shrimp breeding area, the crayfish recovery door is opened, and the second breeding fence is recovered and gathered to quickly recover and salvage the crayfish; when recovering aquatic animals in the aquatic animal breeding area, the aquatic animal recovery door is opened and the water is discharged and collected.

[0018] Furthermore, an aerator is provided in the aquatic animal breeding area.

[0019] The beneficial effect of adopting the above technical solution is that it can provide sufficient oxygen to the crayfish and aquatic animals in the breeding box, ensure the oxygen content of the breeding box, and increase the life span of the crayfish and aquatic animals.

[0020] Furthermore, a purified water tank is fixed on the top of the support seat, and the purified water tank and the breeding box share a box wall. A first water pump is provided in the aquatic animal breeding area of ​​the breeding box, and the water outlet of the first water pump is connected to a sewage pipe, and the sewage pipe is connected to the purified water tank. A metabolite treatment device is provided in the purified water tank, and a second water pump is provided in the purified water tank, and the water outlet of the second water pump is connected to a return pipe for supplying water to the breeding box.

[0021] The beneficial effect of adopting the above technical solution is that the first water pump sucks the sewage in the breeding box into the purified water tank through the sewage pipe. After being treated by the metabolite treatment device, the second water pump discharges the water in the purified water tank into the breeding box again through the return pipe, thereby realizing the function of repeated recycling of breeding water and greatly reducing the pollution and waste of water resources.

[0022] Furthermore, the sewage pipe is placed outside the breeding box, a detachable filter screen is provided on the sewage pipe, and switch valves are provided on both sides of the filter screen on the sewage pipe.

[0023] The beneficial effect of adopting the above technical solution is that the filter net can perform primary filtration on larger impurities in the sewage entering the purification tank from the breeding box, thereby improving the water purification effect; and the filter net is detachable, which is convenient for cleaning and replacement of the filter net. When disassembling and installing the filter net, the two switch valves on both sides of the filter net need to be closed to prevent water from leaking out of the breeding box and the purification tank.

[0024] Furthermore, the metabolite treatment device includes: a mesh wrapping shell, which is fixed on the inner wall of the purified water tank or hung on the crossbeam on the box opening of the purified water tank through a hanging rope, and the sewage treatment material is wrapped in the mesh wrapping shell.

[0025] The beneficial effect of adopting the above technical solution is that the sewage treatment material wrapped in the mesh wrapping shell can biologically treat nitrates, sulfides, (ammonia, nitrogen) and other wastes in the water in the purified water tank, achieve effective treatment of sewage, and ensure that the water entering the breeding tank is relatively clean water.

[0026] Furthermore, the mesh wrapping shell is filter paper or fabric or mesh filter.

[0027] Furthermore, the support base is an iron frame or a steel frame or a support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 The accompanying drawing is a schematic structural diagram of an intensive composite ecological symbiotic graded culture system for Procambarus clarkii provided by the present invention.

[0030] In the figure: 1-support base, 2-breeding box, 201-mature shrimp breeding area, 202-juvenile shrimp breeding area, 203-aquatic animal breeding area, 3-aquatic plant breeding layer, 4-crayfish recovery door, 5-first breeding enclosure, 6-juvenile shrimp separation pipe, 7-juvenile shrimp bait delivery pipe, 8-heating fill light, 9-aerator, 10-second breeding enclosure, 11-purified water tank, 12-tank wall, 13-first water pump, 14-drain pipe, 15-metabolite treatment device, 151-net-shaped package shell, 152-hanging rope, 153-sewage treatment material, 16-second water pump, 17-return pipe, 18-filter net, 19-switch valve, 20-aquatic animal recovery door, 21-aquatic animal bait delivery pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 The embodiment of the present invention discloses an intensive composite ecological symbiotic hierarchical culture system for Procambarus clarkii, comprising:

[0033] Support base 1, support base 1 is an iron frame or a steel frame or a support plate, which is a barrel with a diameter of 1.6m and a height of 1m;

[0034] A breeding box 2, the bottom end of which is fixedly connected to the top end of the support base 1, an aquatic plant breeding layer 3 is provided inside the breeding box 2, the aquatic plant breeding layer 3 divides the inside of the breeding box 2 into a mature shrimp breeding area 201 and a juvenile shrimp breeding area 202, and a crayfish recovery door 4 is provided on the side wall of the breeding box 2 corresponding to the juvenile shrimp breeding area 202; in this embodiment, the aquatic plant breeding layer 3 is made of resin as the main frame, and the internal space of the frame is filled with soil composed of gravel, activated carbon, vermiculite, and perlite, and aquatic plants such as Elodea can be planted;

[0035] A first breeding seine 5, which is located in the mature shrimp breeding area 201 and is laid on the upper surface of the aquatic plant breeding layer 3;

[0036] A juvenile shrimp separation tube 6, wherein there are multiple juvenile shrimp separation tubes 6, and each of the juvenile shrimp separation tubes 6 is embedded in the aquatic plant culture layer 3, one end of the juvenile shrimp separation tube 6 is located below the mesh of the first culture enclosure 5, and the other end of the juvenile shrimp separation tube 6 passes downward through the aquatic plant culture layer 3 and extends into the juvenile shrimp culture area 202;

[0037] The juvenile shrimp bait delivery pipe 7 is fixed on the inner box wall of the culture box 2, and one end of the juvenile shrimp bait delivery pipe 7 passes through the first culture enclosure 5 and the aquatic plant culture layer 3 and extends downward into the juvenile shrimp culture area 202.

[0038] A plurality of heating and light-filling lamps 8 are installed on the aquatic plant cultivation layer 3 .

[0039] A second breeding enclosure 10 is arranged near the other end of the juvenile shrimp separation pipe 6 in the juvenile shrimp breeding area 202. The juvenile shrimp breeding area 202 is located above the second breeding enclosure 10, and the aquatic animal breeding area 203 is located below the second breeding enclosure 10. One end of the juvenile shrimp bait delivery pipe 7 is located above the second breeding enclosure 10. An aquatic animal recovery door 20 is provided on the side wall of the breeding box 2 corresponding to the aquatic animal breeding area 203. The aquatic animal bait delivery pipe 21 is fixed on the inner wall of the breeding box 2, and one end thereof passes through the first breeding enclosure 5, the aquatic plant breeding layer 3, the juvenile shrimp breeding area 202, the second breeding enclosure 10 and extends downward into the aquatic animal breeding area 203. Aquatic animals such as medaka, loach, freshwater shellfish, and fish can be cultured in the aquatic animal breeding area 203.

[0040] An aerator 9 is provided in the aquatic animal breeding area 203 to increase the oxygen supply of the system and ensure that the crayfish and aquatic animals have sufficient oxygen to survive.

[0041] A purified water tank 11 is fixed to the top of the support base 1, and a box wall 12 is shared between the purified water tank 11 and the breeding box 2. A first water pump 13 is provided in the aquatic animal breeding area 203 of the breeding box 2, and a water outlet of the first water pump 13 is connected to a sewage pipe 14, and the sewage pipe 14 is connected to the purified water tank 11. A metabolite treatment device 15 is provided in the purified water tank 11, and a second water pump 16 is provided in the purified water tank 11, and a water outlet of the second water pump 16 is connected to a return pipe 17 for supplying water to the breeding box 2.

[0042] The sewage pipe 14 is placed outside the breeding box 2 , and a detachable filter screen 18 is provided on the sewage pipe 14 (the detachable filter screen structure is the prior art), and switch valves 19 are provided on both sides of the sewage pipe 14 .

[0043] The metabolite treatment device 15 includes: a mesh wrapping shell 151, which is fixed on the inner wall of the purified water tank 11 or hung on a beam on the box opening of the purified water tank 11 through a hanging rope 152, and a sewage treatment material 153 is wrapped in the mesh wrapping shell 151.

[0044] The sewage treatment material 153 is a composite of microbial filtration powder, filling protection medium, activation reaction medium and real-time release medium.

[0045] Among them, the main components of microbial filtration powder are aerobic bacteria, facultative anaerobic bacteria, and anaerobic bacteria; the main components of the activated filling material (activation reaction medium) are skimmed milk, lactose, yeast extract, peptone, maltose, glucose, xylooligosaccharides, and fructo-oligosaccharides; the main components of the filling protection medium are sodium carboxymethyl cellulose, xanthan gum, sodium alginate, maltodextrin, starch, and soy protein; the main components of the real-time release medium are sodium carboxymethyl cellulose, shellac, sodium alginate, maltodextrin, and modified starch; the ratio of microbial filtration powder to activated filling material (activation reaction medium) is 1:1 to 10000; the microbial filtration powder and the activated filling material are mainly placed on the real-time release medium; and the thickness of the real-time release medium is related to the expected filtration time (the thickness ranges from 1 to 1000um).

[0046] The mesh wrapping shell 151 is filter paper or fabric or mesh filter.

[0047] Based on the concept of ecological niche, this system divides the aquaculture water into four spatial areas, namely, mature shrimp aquaculture area, aquatic plant aquaculture area, juvenile shrimp aquaculture area, and aquatic animal aquaculture area from top to bottom, so as to achieve the effect of harmonious coexistence within the system without harming each other. In addition, the system has complete filtering and purification facilities, which can realize the repeated recycling of aquaculture water. At the same time, it is equipped with heat preservation and oxygenation functions to enable year-round aquaculture, reduce seasonal effects, and increase the yield of aquaculture varieties.

[0048] The present invention provides the following embodiments:

[0049] Example application 1:

[0050] The breeding density of Procambarus clarkii is 20 to 25 per m 2 , the male-female ratio is 3:1, and the aquatic plant species is Elodea. Since this breeding system has a layered structure, it can be managed differently according to different breeding areas. The management method of the Procambarus clarkii breeding area is to feed twice a day, and the feeding amount is 2-3% of the body weight of the breeding shrimp. The feeding feed can be sprinkled throughout the pond, and different feeds can be added according to the purpose of its production. Due to the use of light, temperature and other measures in the aquatic plant breeding layer, it can grow all year round. The density of Elodea is mainly controlled, that is, its planting density is appropriately reduced to reduce the oxygen consumption of Elodea for the breeding water. The diameter of the juvenile shrimp separation tube is less than 10mm, the protein content of the feed is ≥45%, and it is fed once a day. The juvenile shrimp of Procambarus clarkii is larger than 10mm, and the particle size is 1.6mm. The special feed is fed, and the feeding amount is 3.00~2.25g / m 2 , aquatic plants are planted as water peanuts.

[0051] The aquatic animal culture is eel. Before stocking eels, bloodworms are first released into the shrimp breeding area. The stocking density of eel fry is 100g / m 2The feeding amount of compound feed is 4-6% of the eel's body weight, the aerator is turned on all day, the first water pump and the second water pump are started at different times in the morning and evening, and the filter screen is cleaned every 2 days. Due to the long breeding period of seed shrimp, the ratio of microbial filter powder to activated filling material in the sewage treatment material is 1:1000, and the thickness of the real-time release medium is 1000um. The microbial filter powder is mainly composed of aerobic bacteria, facultative anaerobic bacteria, and anaerobic bacteria; the activated filling material is mainly composed of skim milk, lactose, yeast extract, peptone, maltose, glucose, oligoxylose, and oligofructose; the filling protection medium is mainly composed of sodium carboxymethyl cellulose, xanthan gum, sodium alginate, maltodextrin, starch and soy protein; the real-time release medium is mainly composed of sodium carboxymethyl cellulose, shellac, sodium alginate, maltodextrin, and modified starch; the mesh wrapping shell is fabric.

[0052] Adult shrimps can be harvested by salvaging the crayfish on the upper layer with the first breeding seine, and the crayfish on the lower layer can be salvaged with the second breeding seine. To salvage the eels, the aquatic animal recovery door can be opened to drain water and collect commercial eels.

[0053] Example application 2:

[0054] The breeding density of Procambarus clarkii is 11 to 25 per m 2 , the male-female ratio is 3:1, and the aquatic plant species is Elodea. Since this breeding system has a layered structure, it can be managed differently according to different breeding areas. The management method of the Procambarus clarkii breeding area is to feed twice a day, and the feeding amount is 2-3% of the body weight of the breeding shrimp. The feed can be sprinkled throughout the pond, and different feeds can be added according to the purpose of its production. Due to the use of light, temperature and other measures in the aquatic plant breeding layer, it can grow all year round. The density of Elodea is mainly controlled, that is, its planting density is appropriately reduced to reduce the oxygen consumption of Elodea to the breeding water. The diameter of the juvenile shrimp separation tube is less than 30mm, and the daily feeding particle size is 2.4mm, which is fed in the morning and evening. The aquatic animal culture is loach, and the stocking density is 0.75g / m 2 ~1.05g / m 2 , feeding once in the morning and evening, feeding amount is 3% to 5% of loach body weight. The aerator is turned on all day, the first water pump and the second water pump are started at different times in the morning and evening, and the filter is cleaned every 2 days. The ratio of microbial filter powder to activated filling material in sewage treatment materials is 1:100, the thickness of real-time release medium is 200um, microbial filter powder is mainly composed of aerobic bacteria, facultative anaerobic bacteria, and anaerobic bacteria; activated filling material is mainly composed of skim milk, lactose, yeast extract, peptone, maltose, glucose, oligoxylose, oligofructose; the main components of filling protection medium are sodium carboxymethyl cellulose, xanthan gum, sodium alginate, maltodextrin, starch and soy protein; real-time release medium is mainly composed of sodium carboxymethyl cellulose, shellac, sodium alginate, maltodextrin, modified starch, and the mesh wrapping shell is fabric.

[0055] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0056] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intensive composite ecological symbiotic hierarchical culture system for Procambarus clarkii, characterized in that: include: Support seat (1); A breeding box (2), wherein the bottom end of the breeding box (2) is fixedly connected to the top end of the support seat (1), an aquatic plant breeding layer (3) is provided inside the breeding box (2), the aquatic plant breeding layer (3) divides the inside of the breeding box (2) into a mature shrimp breeding area (201) and a juvenile shrimp breeding area (202) at the top and bottom, and a crayfish recovery door (4) is provided on a side wall of the breeding box (2) corresponding to the juvenile shrimp breeding area (202); A first breeding fence (5), the first breeding fence (5) being located in the mature shrimp breeding area (201) and laid on the upper surface of the aquatic plant breeding layer (3); a juvenile shrimp separation tube (6), wherein the juvenile shrimp separation tube (6) is in plurality and is embedded in the aquatic plant culture layer (3); one end of the juvenile shrimp separation tube (6) is located below the mesh of the first culture enclosure (5), and the other end of the juvenile shrimp separation tube (6) passes downward through the aquatic plant culture layer (3) and extends into the juvenile shrimp culture area (202); a juvenile shrimp bait delivery pipe (7), the juvenile shrimp bait delivery pipe (7) being fixed to the inner wall of the culture box (2), and one end of the juvenile shrimp bait delivery pipe (7) passing through the first culture enclosure (5) and the aquatic plant culture layer (3) and extending downward into the juvenile shrimp culture area (202); A plurality of heating and supplementary light lamps (8) are installed on the aquatic plant cultivation layer (3); A second breeding enclosure (10) is arranged in the juvenile shrimp breeding area (202) at a position close to the other end of the juvenile shrimp separation pipe (6), and the juvenile shrimp breeding area (202) is located above the second breeding enclosure (10).

2. The intensive composite ecological symbiotic hierarchical culture system of Procambarus clarkii according to claim 1, characterized in that: Below the second aquaculture enclosure (10) is an aquatic animal breeding area (203); one end of the juvenile shrimp feed delivery pipe (7) is located above the second aquaculture enclosure (10); an aquatic animal recovery door (20) is provided on the side wall of the aquaculture box (2) corresponding to the aquatic animal breeding area (203); the aquatic animal feed delivery pipe (21) is fixed to the inner wall of the aquaculture box (2), and one end of the aquatic animal feed delivery pipe (21) passes through the first aquaculture enclosure (5), the aquatic plant breeding layer (3), the juvenile shrimp breeding area (202), the second aquaculture enclosure (10), and extends downward into the aquatic animal breeding area (203).

3. The intensive composite ecological symbiotic hierarchical culture system of Procambarus clarkii according to claim 2, characterized in that: An aerator (9) is provided in the aquatic animal breeding area (203).

4. The intensive composite ecological symbiotic hierarchical culture system of Procambarus clarkii according to any one of claims 2-3, characterized in that: A purified water tank (11) is fixed to the top of the support base (1), and the purified water tank (11) and the breeding box (2) share a box wall (12). A first water pump (13) is provided in the breeding box (2) in the aquatic animal breeding area (203), and a water outlet of the first water pump (13) is connected to a sewage pipe (14), and the sewage pipe (14) is in communication with the purified water tank (11). A metabolite treatment device (15) is provided in the purified water tank (11), and a second water pump (16) is provided in the purified water tank (11), and a water outlet of the second water pump (16) is connected to a return pipe (17) for supplying water to the breeding box (2).

5. The intensive composite ecological symbiotic hierarchical culture system of Procambarus clarkii according to claim 4, characterized in that: The sewage discharge pipe (14) is disposed outside the breeding box (2), a detachable filter screen (18) is provided on the sewage discharge pipe (14), and switch valves (19) are provided on both sides of the filter screen (18) on the sewage discharge pipe (14).

6. The intensive composite ecological symbiotic hierarchical culture system of Procambarus clarkii according to claim 4, characterized in that: The metabolite treatment device (15) comprises: a mesh-shaped wrapping shell (151), the mesh-shaped wrapping shell (151) being fixed to the inner box wall of the purified water tank (11) or being hung on a crossbeam on the box opening of the purified water tank (11) via a hanging rope (152), and sewage treatment material (153) being wrapped in the mesh-shaped wrapping shell (151).

7. The intensive composite ecological symbiotic hierarchical culture system of Procambarus clarkii according to claim 6, characterized in that: The mesh wrapping shell (151) is filter paper or fabric or a mesh filter.

8. The intensive composite ecological symbiotic hierarchical culture system of Procambarus clarkii according to claim 1, characterized in that: The support seat (1) is an iron frame or a steel frame or a support plate.

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