Breeding experiment field for breeding macrobrachium rosenbergii in rice field

Abstract

According to the technical scheme, the breeding experiment field for breeding macrobrachium rosenbergii in the rice field comprises breeding boxes, the multiple breeding boxes are longitudinally arranged, each breeding box comprises a deep water area and a shallow water area, each deep water area is provided with an oxygenation mechanism and a water stopping and draining mechanism, each water stopping and draining mechanism is internally provided with an escape preventing mechanism, and each escape preventing mechanism is provided with a water stopping and draining mechanism. The shallow water area is provided with a water inlet mechanism, the water stopping and draining mechanisms of the multiple breeding boxes are all communicated with a draining pipeline, and a valve is arranged between the water inlet mechanism and the water inlet pipeline.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to an experimental paddy field for raising giant freshwater prawns in rice paddies. Background Technology

[0002] In the field of rice-fish farming, the giant freshwater prawn (Macrobrachium rosenbergii), as a high-value aquatic product, has attracted widespread attention in recent years. However, research on the farming techniques and management methods of giant freshwater prawns in rice paddy environments is relatively scarce, especially lacking systematic experimental data. Existing literature occasionally mentions cases of giant freshwater prawn farming in rice paddies, mostly based on small-scale farmer practices or sporadic reports, without forming a mature, scientific theoretical system and operational guidelines.

[0003] Currently, known attempts mainly focus on utilizing the advantages of rice paddies as natural food grounds to reduce feeding costs, while hoping to improve the stability of rice paddy ecosystems by increasing biodiversity. However, these preliminary explorations face many challenges: First, how to ensure harmonious coexistence between giant freshwater prawns and rice, avoiding adverse effects on rice growth; second, the specific impacts of the rice paddy environment (such as water quality, temperature, pH, etc.) on giant freshwater prawn growth are still unclear; in addition, in-depth research is lacking in disease control, feed formulation, and placement strategies.

[0004] Against this backdrop, conducting systematic research specifically on giant freshwater prawn (Macrobrachium rosenbergii) farming technology under paddy field conditions is particularly important. This will not only fill the current knowledge gaps in this field but also provide new ideas for promoting sustainable agricultural development. This application aims to test and solve the aforementioned problems by designing experimental farming fields, and ultimately achieve an efficient and environmentally friendly paddy field-giant freshwater prawn co-cultivation model. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an experimental paddy field for rice-crayfish farming of giant freshwater prawns. This experimental field offers an ideal data collection platform for studying the rice-crayfish symbiotic model, facilitating in-depth exploration and understanding of the working mechanism and optimization path of this ecological aquaculture system. Through this specialized setup, related scientific research can be conducted more systematically, promoting the development and improvement of the rice-crayfish symbiotic model.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An experimental paddy field for rice-farming giant freshwater prawns includes a culture tank, with multiple culture tanks arranged longitudinally. Each culture tank includes a deep water zone and a shallow water zone. The deep water zone is equipped with an oxygenation mechanism and a drainage control mechanism. The drainage control mechanism includes an escape prevention mechanism. The shallow water zone is equipped with a water inlet mechanism. The drainage control mechanisms of the multiple culture tanks are all connected to a drainage pipe. A valve is provided between the water inlet mechanism and the water inlet pipe.

[0008] Preferably, the oxygenation mechanism includes an air tube with multiple open pipes. A limiting tube is fitted at each open pipe, and a retaining tube is fitted on the limiting tube. A flexible tube is fitted at the lower part of the retaining tube and is fixedly connected to the retaining tube. An oxygenation ball is connected to the bottom of the flexible tube.

[0009] Preferably, the bottom of the limiting tube is an arc surface.

[0010] Preferably, the drainage mechanism includes a first pipe and a second pipe. The first pipe is connected to a drainage pipe, and the second pipe is sleeved on the upper end of the first pipe. The upper end of the first pipe is provided with a plurality of drainage holes, which are arranged in a ring.

[0011] Preferably, the first through pipe is provided with two limiting pipes two at intervals, and the drain hole one is located between the two limiting pipes two.

[0012] Preferably, the upper end of the second conduit is provided with a plurality of drainage holes II, which are arranged in a ring.

[0013] Preferably, a ring net is provided around the drainage stop mechanism.

[0014] Preferably, the escape prevention mechanism includes a threaded part and an escape prevention net. The threaded part is threadedly connected to the first through pipe, and the escape prevention net is provided below the threaded part. The escape prevention net corresponds to a position of the drainage hole.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1. Scientific Research Platform: This experimental aquaculture field provides an ideal data collection platform for studying the rice-giant prawn symbiotic model, facilitating in-depth exploration and understanding of the working mechanism and optimization path of this ecological aquaculture system. Through this dedicated setup, relevant scientific research can be conducted more systematically, promoting the development and improvement of the rice-giant prawn symbiotic model.

[0017] 2. Ecosystem Simulation and Optimization: By constructing deep-water and shallow-water zones, different aquatic conditions in the natural environment are simulated, providing the giant freshwater prawn (Macrobrachium rosenbergii) with a more natural living space. This layout improves land use efficiency, promotes ecological balance, and realizes a co-culture model between giant freshwater prawns and rice, where both thrive in a mutually beneficial relationship. The introduction of aeration and drainage systems ensures sufficient dissolved oxygen in the water while precisely controlling water level changes, facilitating daily management and maintenance. Furthermore, an escape-prevention mechanism on the first drain pipe effectively prevents giant freshwater prawns from escaping through the drainage holes, ensuring the safety and stability of the aquaculture. The water inlet design in the shallow-water zone allows water flow to carry natural food to more distant areas and into the deep-water zone. This not only improves aquaculture efficiency but also enhances water circulation and renewal, helping to maintain water quality stability and ecological balance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the drainage and water-stopping mechanism of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the oxygenation mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the escape prevention mechanism of this utility model;

[0022] The diagram shows: 1. Breeding box; 11. Deep water area; 12. Shallow water area; 2. Aeration mechanism; 21. Air pipe; 211. Open pipe; 22. Limiting pipe one; 23. Clamping pipe; 24. Flexible hose; 25. Aeration ball; 3. Drainage prevention mechanism; 31. First through pipe; 311. Drain hole one; 312. Limiting pipe two; 32. Second through pipe; 321. Drain hole two; 33. Escape prevention mechanism; 331. Threaded part; 332. Escape prevention net; 333. Handle; 4. Water inlet mechanism; 41. Valve; 5. Drainage pipe; 6. Water inlet pipe. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] like Figure 1-4The experimental paddy field for raising giant freshwater prawns in rice paddies, as shown, involves first digging a rectangular groove in the selected land. Next, four steel pillars are inserted at the four corners of this groove as support structures. Then, waterproof tarpaulin is laid around these four steel pillars, ensuring its edges are tightly fitted to the ground to prevent moisture loss or external pollution. Finally, an appropriate amount of soil is filled in, thus constructing a safe and near-natural small ecosystem—our rearing box 1. This design not only provides giant freshwater prawns with a space closer to their wild living conditions, but also allows researchers to observe the growth status of the prawns in real time. By regularly recording and analyzing data, rearing strategies can be optimized to improve rearing efficiency and yield. In this way, it is possible to better explore how to optimize giant freshwater prawn rearing methods in rice paddies, increasing yield while maintaining ecological balance. Multiple rearing boxes 1 are arranged longitudinally.

[0025] On the right side of culture tank 1, a shallow water area 12, slightly lower than the surrounding land, is created by excavating part of the soil. Simultaneously, a deeper excavation is carried out on the left side of culture tank 1, creating a deeper area, designated as deep water area 11. This creates a height difference of approximately 35cm to 45cm between deep water area 11 and shallow water area 12. The deep water area 11 and shallow water area 12 within culture tank 1 each play different ecological roles to promote the harmonious coexistence of giant freshwater prawns and rice. Deep water area 11: This area is specifically for giant freshwater prawn farming. Its deeper water not only simulates a natural aquatic environment, providing the giant freshwater prawns with necessary living space and refuge, but also helps maintain stable water quality conditions, promoting the healthy growth and reproduction of the prawns. By controlling parameters such as water level, temperature, and dissolved oxygen levels in this area, the survival rate and growth rate of the giant freshwater prawns can be maximized. Shallow water area 12: The shallow water area adjacent to the deep water area is designated as a rice cultivation area. The shallow water level here is conducive to the respiration and nutrient absorption of rice roots. At the same time, the presence of rice plants provides natural shelter and additional oxygen for the giant freshwater prawns. Furthermore, the organic matter released by the rice during its growth serves as natural food, further enriching the biodiversity within the rearing tanks and creating a virtuous cycle ecosystem. By dividing the water into deep water zone 11 and shallow water zone 12, a co-cultivation model between giant freshwater prawns and rice is achieved, promoting a mutually beneficial symbiotic relationship between the two. This represents a highly efficient and environmentally friendly integrated rice-fish farming solution.

[0026] The deep-water zone 11 is equipped with an oxygenation mechanism 2 and a drainage control mechanism 3. The drainage control mechanism 3 is connected to a drainage pipe, which is buried underground. The oxygenation mechanism 2 ensures sufficient dissolved oxygen in the water through a highly efficient oxygen supply system, providing a good growth environment for the giant freshwater prawns. The drainage control mechanism 3 precisely controls water level changes, ensuring water quality stability and facilitating daily management and maintenance. These two key components work together to make the deep-water zone 11 a highly efficient and controllable aquaculture space.

[0027] The oxygenation mechanism 2 includes an air pipe 21 connected to an oxygenation pump. The air pipe 21 has multiple open pipes 211, each corresponding to a breeding box 1. A limiting tube 22 is fitted onto each open pipe 211, fixedly connected to the lower end of the open pipe 211. A retaining tube 23 is fitted onto the limiting tube 22, movably connected to it. The bottom of the limiting tube 22 is curved, its function being to simplify the insertion process and improve operational efficiency. This design effectively avoids the problem of the two end faces of the retaining tube 23 and the limiting tube 22 obstructing each other, making upward insertion smoother and faster, allowing for easy insertion without needing to look down. The lower part of the clamping connector 23 is fitted with a flexible hose 24, which is fixed to the clamping connector 23 by a clamp or wire. If the flexible hose 24 is directly connected to the limiting tube 22, frequent insertion and removal can easily cause the connection of the flexible hose 24 to loosen, leading to oxygen leakage. This design effectively avoids this problem by optimizing the connection method, ensuring the system's sealing and stability. An oxygenation ball 25 is connected to the bottom of the flexible hose 24.

[0028] The drainage and sealing mechanism 3 includes a first through pipe 31 and a second through pipe 32. The first through pipe 31 is connected to the drainage pipe 5, and the second through pipe 32 is sleeved on its upper end. The two pipes can be moved relative to each other by researchers pulling the second through pipe 32. Two limiting pipes 312 are provided at intervals on the upper end of the first through pipe 31. The first through pipe 31 located between the two limiting pipes 312 has a plurality of drainage holes 311 arranged in a ring. The upper limiting pipe 312 is mainly used to fix the second through pipe 32 when it is pulled up during the collection of giant freshwater prawns, so as to ensure that the second through pipe 32 is not placed randomly and to keep the operation area clean and orderly. The lower limiting pipe 312 plays a role in stopping water during the breeding stage, ensuring that water does not leak out for no reason. When draining, the second through pipe 32 is pulled upward, at which time the second through pipe 32 separates from the lower limiting pipe 312, thereby opening the drainage channel and allowing water to be discharged quickly from the plurality of drainage holes 311. At the same time, the lower limiting pipe 312 will discharge the sludge stuck below the connection between the second pipe 32 and the lower limiting pipe 312, effectively avoiding the problem of poor drainage or blockage.

[0029] The first tube 31 is movably connected to an escape prevention mechanism 33. The escape prevention mechanism 33 is hollow inside. The inner side of the upper end of the first tube 31 is provided with an internal thread. The upper end of the escape prevention mechanism 33 is provided with a threaded part 331, which is an external thread. The threaded part 331 is threadedly connected to the first tube 31. The lower end of the escape prevention mechanism 33 is provided with an escape prevention net 332 at intervals. The escape prevention net 332 fits perfectly with the first drain hole 311, thereby preventing the giant freshwater prawn from escaping from the first drain hole 311. The upper end face of the escape prevention mechanism 33 is provided with handles 333 on both sides, which makes it easy to rotate and separate the escape prevention mechanism 33. Alternatively, an escape prevention net 332 can be provided in the through hole at the top of the escape prevention mechanism 33. This is mainly used to prevent researchers from pulling out the second tube 32 with excessive force when collecting giant freshwater prawns, which would cause it to separate from the first tube 31 and allow the giant freshwater prawn to escape. Multiple drainage holes 321 arranged in a ring are provided at the upper end of the second conduit 32. The drainage holes 321 are positioned at the same level as the warning water level and are used to drain excess water when the water in the breeding tank 1 exceeds the warning water level. A ring mesh may be provided on the outside of the drainage stop mechanism 3 to prevent large pieces of sludge from entering the drainage stop mechanism 3, ensuring smooth drainage and further improving the operating efficiency and stability of the system.

[0030] The shallow water area 12 is equipped with a water inlet mechanism 4, which is connected to the water inlet pipe 6. During water intake, water enters the shallow water area 12 through the inlet mechanism 4, creating a specific speed and direction that carries natural food to a more distant area, allowing it to flow into the deep water area 11. This design not only improves aquaculture efficiency but also enhances water circulation and renewal by simulating the dynamic flow of water in a natural environment, helping to maintain water quality stability and ecological balance. A valve is installed between the water inlet mechanism 4 and the water inlet pipe 6.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An experimental paddy field for rice-fish farming of giant freshwater prawns, characterized in that, The system includes a breeding tank, with multiple breeding tanks arranged longitudinally. Each breeding tank includes a deep water area and a shallow water area. The deep water area is equipped with an oxygenation mechanism and a drainage prevention mechanism. The drainage prevention mechanism contains an escape prevention mechanism. The shallow water area is equipped with a water inlet mechanism. The drainage prevention mechanisms of the multiple breeding tanks are all connected to a drainage pipe. A valve is provided between the water inlet mechanism and the water inlet pipe.

2. The experimental paddy field for rice-farming giant freshwater prawns according to claim 1, characterized in that, The oxygenation mechanism includes an air tube with multiple open pipes. A limiting tube is fitted at each open pipe, and a clamping tube is fitted on the limiting tube. A flexible tube is fitted at the lower part of the clamping tube and is fixedly connected to the clamping tube. An oxygenation ball is connected to the bottom of the flexible tube.

3. The experimental paddy field for rice-farming giant freshwater prawns according to claim 2, characterized in that, The bottom of the limiting tube is curved.

4. The experimental paddy field for rice-farming giant freshwater prawns according to claim 1, characterized in that, The drainage mechanism includes a first pipe and a second pipe. The first pipe is connected to a drainage pipe. The second pipe is sleeved on the upper end of the first pipe. The upper end of the first pipe is provided with a plurality of drainage holes arranged in a ring.

5. The experimental paddy field for rice-farming giant freshwater prawns according to claim 4, characterized in that, The first through pipe is provided with two limiting pipes, and the first drain hole is located between the two limiting pipes.

6. The experimental paddy field for rice-farming giant freshwater prawns according to claim 4, characterized in that, The upper end of the second pipe is provided with a plurality of drainage holes, which are arranged in a ring.

7. The experimental paddy field for rice-farming giant freshwater prawns according to claim 4, characterized in that, A ring net is provided around the drainage stop mechanism.

8. The experimental paddy field for rice-farming giant freshwater prawns according to claim 4, characterized in that, The escape prevention mechanism includes a threaded part and an escape prevention net. The threaded part is threadedly connected to the first through pipe, and the escape prevention net is provided below the threaded part. The escape prevention net corresponds to the position of the drainage hole.

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