Adjustable micro-incubation system and method for efficient mandarin fish breeding

Abstract

The invention provides an adjustable micro-incubation system and method for efficient mandarin fish breeding, and the system comprises a base, a plurality of uniformly arranged incubation modules disposed on the base, and a main pipeline used for connecting the incubation modules. The hatching module comprises a base, a cylindrical body arranged on the upper surface of the base, a conical flow guide egg stabilizing body arranged at the inner bottom of the cylindrical body, a branch pipe arranged at the bottom of the cylindrical body and an upper outlet guide pipe arranged at the top of the cylindrical body. Limitation of a traditional single water flow form can be broken through, stability and accuracy of the hatching process are improved, and cost is reduced.

Description

Technical Field

[0001] This invention relates to the fields of aquaculture engineering and facility agriculture technology, and in particular to an adjustable micro-incubation system and method for high-efficiency mandarin fish breeding. Background Technology

[0002] Mandarin fish breeding is a crucial step in the creation of new varieties and industrial upgrading. In mandarin fish breeding technology, the hatching of artificially fertilized eggs typically uses open cement ponds or hatching tanks. Due to the limited number of artificially fertilized eggs (maximum 10,000), the smallest single hatching tank currently has a volume of 100L, primarily suitable for hatching hundreds of thousands of fertilized eggs in production. Furthermore, mandarin fish breeding often involves multiple methods of artificial intervention within the same batch. Using separate production hatching tanks to independently hatch fertilized eggs results in significant waste of energy and water resources, and makes it difficult to observe the hatching progress and the separation of fry. Therefore, the following problems currently exist in the mandarin fish breeding process: 1. Uneven water flow distribution: The pipe layout in existing fish egg incubation systems is generally a simple "I" or "Feng" shape. This fixed pattern makes it difficult to distribute water flow evenly, resulting in dead water corners in the breeding container, affecting the synchronous development of fish eggs, and causing local water quality to deteriorate continuously.

[0003] 2. Poor space adaptability: The system pipe length is fixed and cannot be flexibly adapted to different specifications of incubation cups or containers, such as those with a width of 120mm or 150mm, resulting in wasted space or unreasonable layout. Such a design clearly lacks consideration for actual use scenarios.

[0004] 3. Low energy efficiency: Due to deficiencies in the existing system design, water pumps and aerators often operate under high load for extended periods to ensure a minimum water flow and dissolved oxygen, ultimately leading to energy waste and high operating costs.

[0005] 4. Low controllability and intelligence: There is a lack of automatic feedback and adjustment mechanisms based on key water quality and water quality parameters. Management mainly relies on human experience. This extensive operation method is unstable and inaccurate, which is not conducive to the hatching of mandarin fish eggs. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this invention is to provide an efficient adjustable micro-incubation system and method for mandarin fish breeding, which can break through the limitations of the traditional single water flow form, improve the stability and accuracy of the incubation process, and reduce costs.

[0007] To achieve the above objectives, the present invention provides the following solution: an adjustable micro-incubation system for high-efficiency mandarin fish breeding, comprising a base, a plurality of uniformly arranged incubation modules disposed on the base, and a main pipe for connecting the incubation modules. The incubation module comprises a base, a columnar body disposed on the upper surface of the base, a conical flow guide and egg stabilizer disposed at the bottom of the columnar body, a branch pipe disposed at the bottom of the columnar body, and an upper outlet conduit disposed at the top of the columnar body.

[0008] Optionally, the diameter of the columnar body is the same as the maximum diameter of the conical flow-guiding and egg-stabilizing body.

[0009] Optionally, the top end of the branch pipe is connected to the bottom opening of the conical flow guide and stabilizing body, and the bottom end is connected to the main pipe. A water inlet valve is provided on the bottom end of the branch pipe.

[0010] This invention also provides an efficient micro-incubation method for mandarin fish breeding, comprising: The system is started, and oxygen-enriched water is delivered to the incubation module through the main pipeline. The flow state inside the incubation module is initialized and adjusted to form a stable flow field. Based on the stable flow field of the incubation module, the environment before egg release is confirmed, and egg release and incubation management before membrane rupture are carried out. When the fertilized eggs enter the molting period, water flow adaptive regulation is carried out. Determine whether the fry have entered the lateral swimming stage. If so, optimize the water flow until the water environment is stable in the later stages of hatching, and then proceed with the fry collection operation to obtain fry.

[0011] Optionally, the system is started, oxygen-enriched water is delivered to the incubation module through the main pipeline, and the incubation module's internal flow pattern is initialized and debugged to form a stable flow field, including: The system is started, and the water is pumped to the oxygenator for oxygenation treatment to generate oxygen-enriched water. The oxygen-enriched water is then transported to each branch pipe through the main pipeline, and then to each incubation module through the branch pipe. By adjusting the inlet valve, the flow rate of oxygen-enriched water entering the conical guide stabilizing egg body is adjusted to 0.5 to 1.2 liters / minute·cm. When the dissolved oxygen in the conical guide stabilizing egg body reaches 6 mg / L or more, the initial flow state adjustment in the cup is completed, and a stable flow field is formed.

[0012] Optionally, based on the stable flow field of the incubation module, the pre-egg release environment is confirmed, and egg release and pre-molting incubation management are carried out. When the fertilized eggs enter the molting period, water flow adaptive regulation is performed, including: Based on the stable flow field of the incubation module, determine whether the dissolved oxygen in the water is greater than or equal to 6 mg / L and whether the temperature is between 22°C and 26°C. If so, put the fertilized eggs into the conical flow-guiding stable egg body at a density range of 30,000 eggs per cubic meter to 50,000 eggs per cubic meter. The oxygen-enriched water flow is adjusted to 0.5 liters / minute·cm to form a gentle flow field. The fertilized eggs are suspended in the water through the water flow of the gentle flow field, and oxygen is supplied at 360° to complete the incubation management before hatching. Determine whether the fertilized egg has entered the shedding phase. If so, increase the flow rate of oxygen-enriched water to remove egg membrane fragments and complete the adaptive regulation of water flow.

[0013] This invention discloses the following technical effects by providing an efficient adjustable micro-incubation system and method for mandarin fish breeding: 1. Improve hatching performance: It is necessary to provide suitable water flow and dissolved oxygen environment for each developmental stage, which can increase the hatching rate of mandarin fish fertilized eggs and the survival rate of fry by more than 10%.

[0014] 2. Energy saving and consumption reduction: Modular design and precise control can avoid unnecessary energy waste, and the overall energy consumption of the system can be reduced to 20%-35%.

[0015] 3. High spatial adaptability and flexibility: The system can be flexibly expanded and recombined according to the breeding treatment method and scale, which greatly improves the space utilization rate and equipment versatility.

[0016] 4. Stable and controllable hatching environment: The intelligent control system can effectively offset the fluctuations caused by the external environment, providing the most suitable and stable conditions for the breeding and hatching of mandarin fish, and ultimately providing basic facility guarantees for the successful creation of new mandarin fish varieties.

[0017] 5. Reduce labor intensity: Automated control can reduce tedious work such as daily sampling and observation as well as manual adjustment, achieving the effect of intelligent incubation.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A system architecture diagram provided for embodiments of the present invention; Figure 2 This is a schematic diagram of the incubation module provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the method flow provided in an embodiment of the present invention; Explanation of reference numerals in the attached diagram: 1. Base; 2. Hatching module; 21. Columnar body; 22. Conical flow guide and egg stabilizer; 23. Branch pipe; 24. Upper outlet pipe; 25. Inlet valve; 26. Base; 3. Main pipe. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1 like Figure 1 As shown, the present invention provides an adjustable micro-incubation system for high-efficiency mandarin fish breeding, including a base 1, a plurality of uniformly arranged incubation modules 2 disposed on the base 1, and a main pipe 3 for connecting the incubation modules. The incubation module 2 includes a base 26, a columnar body 21 disposed on the upper surface of the base 26, a conical flow guide and egg stabilizer 22 disposed at the bottom of the columnar body 21, a branch pipe 23 disposed at the bottom of the columnar body 21, and an upper outlet conduit 24 disposed at the top of the columnar body 21.

[0024] like Figure 1 , Figure 2 As shown, the diameter of the columnar body 21 is the same as the maximum diameter of the conical flow-guiding and egg-stabilizing body 22. The top end of the branch pipe 23 is connected to the bottom opening of the conical flow-guiding and egg-stabilizing body 22, and the bottom end is connected to the main pipe 3. A water inlet valve 25 is provided on the bottom end of the branch pipe 23.

[0025] like Figure 3 As shown, the present invention also provides an efficient micro-incubation method for mandarin fish breeding, comprising: Step 1: Start the system, deliver oxygen-enriched water to the incubation module 2 through the main pipeline 3, and perform flow state initialization and debugging within the incubation module 2 to form a stable flow field; specifically including: The system is started, and the water is pumped to the oxygenator for oxygenation treatment to generate oxygen-enriched water. The oxygen-enriched water is then transported to each branch pipe 23 through the main pipeline, and then to each incubation module 2 through the branch pipe 23. By adjusting the inlet valve, the flow rate of oxygen-enriched water entering the conical flow guide stabilizing body 22 is adjusted to 0.5 to 1.2 liters / minute·cm. When the dissolved oxygen in the conical flow guide stabilizing body 22 reaches 6 mg / L or more, the initial flow state adjustment in the cup is completed, and a stable flow field is formed.

[0026] Step 2: Based on the stable flow field of the incubation module 2, confirm the pre-egg release environment, and perform egg release and pre-molting incubation management. When the fertilized eggs enter the molting period, perform water flow adaptive regulation; specifically including: Based on the stable flow field of the incubation module 2, determine whether the dissolved oxygen in the water is greater than or equal to 6 mg / L and whether the temperature is between 22°C and 26°C. If so, put the fertilized eggs into the conical flow-guiding stable egg body 22 at a density range of 30,000 eggs per cubic meter to 50,000 eggs per cubic meter. The oxygen-enriched water flow is adjusted to 0.5 liters / minute·cm to form a gentle flow field. The fertilized eggs are suspended in the water through the water flow of the gentle flow field, and oxygen is supplied at 360° to complete the incubation management before hatching. Determine whether the fertilized egg has entered the shedding phase. If so, increase the flow rate of oxygen-enriched water to remove egg membrane fragments and complete the adaptive regulation of water flow.

[0027] Step 3: Determine whether the fry have entered the basal swimming stage. If so, optimize the water flow until the water environment is stable in the later stage of hatching, and then carry out the fry collection operation to obtain fry.

[0028] Example 2 This invention provides a highly efficient adjustable micro-incubation system for mandarin fish breeding, forming a water flow control mechanism adapted to each incubation stage of mandarin fish. Each unit has a dedicated structure adapted to the incubation needs of mandarin fish; the hierarchical incubation unit consists of various incubation cups (incubation modules), each incubation cup including a cylindrical body and a built-in "conical flow guide and egg stabilizer," the core of which lies in the three-in-one synergistic structure of "flow guidance-egg stabilization-oxygenation"; modular pipelines, including... 25mm outlet tube and The 20mm tube, with connectors, is suitable for various sizes of incubation cups, and each incubation cup is equipped with a dedicated bottom water inlet tube (to...). A 20mm branch pipe connection precisely interfaces with the quick-release integrated interface of the modular pipe, ensuring stable water input; it works in conjunction with the bottom inlet pipe to form a "bottom water inlet for egg flushing" channel, and can cooperate with the built-in "conical flow guide and egg stabilizer" to achieve the "bottom water inlet for egg flushing" function. This invention is an adjustable micro-incubation system for mandarin fish breeding, with a wide range of applications. During operation, the fertilized egg stage is achieved through bottom water inlet (… A 20mm pipe and a conical flow guide form a gentle upflow, keeping the fish eggs suspended; during molting, the water flow is increased to remove the egg membrane; during the swimming period, the flow is switched to... The 20mm pipe-driven water flow in the cup stimulates larval growth. Egg membranes and metabolic waste are efficiently removed from the water, resulting in high hatching efficiency. The hatching rate of fertilized mandarin fish eggs can reach ≥90%, an improvement of 5%-10% compared to traditional hatching facilities. The system energy consumption is reduced by 20%-35%, and it enables automated management, providing stable hatching conditions for the creation of new mandarin fish varieties.

[0029] 1. Fertilized egg incubation cup (i.e., incubation module): Functions: This unit accommodates floating fertilized eggs and yolk larvae of mandarin fish, providing a core growth space; prevents egg accumulation and maintains a suspended hatching state; buffers fluctuations in water temperature and dissolved oxygen, reducing their impact on hatching rates; and allows for independent breeding experiments using different artificial intervention methods, enabling multi-batch independent control. The fertilized egg hatching cup is the core component of the tiered hatching unit. It is arranged individually or in parallel above the branch inlet pipes of the modular pipeline, with the center of the cup coaxially aligned with the outlet end of the branch inlet pipe. When multiple hatching cups are used together, they are evenly distributed along the length of the main inlet pipe, with the spacing between adjacent hatching cups matching the spacing of the branch pipes on the main inlet pipe (adaptive). (The branch pipe spacing of the 120 / 150mm cups is adjustable). The bottom of the cup maintains a fixed distance from the ground or equipment base, ensuring easy connection between the bottom interface and the quick-release interface of the branch water inlet pipe without affecting the adjustment operation of the pipeline valves. In group operation, the branch water inlet pipes of multiple incubation cups are connected to the main water inlet pipe, forming a parallel water supply structure; when a single incubation cup is operated independently, individual control can be achieved by closing the valve on the corresponding branch pipe. The outlet on the cup is indirectly connected to the system's return water pipeline; the discharged water, after treatment, can be circulated back to the water pump, forming a closed-loop circulation system.

[0030] (1) Columnar body Specifications: The specification is the diameter. With a diameter of 120 / 150mm and a single cup height of 650mm, the total volume (including the internal conical flow guide and egg stabilizer) is 6.22-9.71 liters, supporting independent or combined operation of multiple cups. This specification matches the length of the pipe module, effectively avoiding space waste. It provides sufficient volume to accommodate the floating eggs of mandarin fish, preventing egg accumulation and maintaining the eggs in a suspended hatching state. The larger water volume can buffer fluctuations in water temperature and dissolved oxygen, reducing the impact of environmental changes on the hatching rate of fish eggs. The cylindrical structure allows for more uniform water inflow and outflow, ensuring balanced dissolved oxygen distribution while removing hatching metabolic waste.

[0031] Function: Each cup can release 30,000-50,000 eggs, which is suitable for the core requirement of "small quantity, multiple batches" in mandarin fish breeding. That is, each cup can be used to carry out breeding experiments with different artificial intervention methods. The parameters of each unit can be controlled independently to avoid mutual interference between batches. This solves the pain point that traditional production hatching equipment cannot be adapted to breeding experiments. At the same time, the cup adopts a "small capacity, high adaptability" design. The release capacity of 30,000-50,000 eggs per cup and the larger water body can buffer the fluctuation of water temperature and dissolved oxygen, reducing the impact of environmental changes on the hatching rate of fish eggs.

[0032] (2) Conical flow-guiding stable egg body Specifications: Specifications refer to the inner diameter The 120 / 150mm diameter, single-cup volume is 0.57-0.88 liters. A conical flow guide and egg stabilizer is coaxially integrated inside the fertilized egg hatching cup, with its bottom precisely aligned with the inlet pipe interface at the bottom of the hatching cup, the cone tip facing down and the cone surface facing up. The maximum outer diameter of the conical flow guide perfectly matches the inner diameter of the fertilized egg hatching cup, with no significant gap between their inner walls, ensuring that all water flow diffuses along the conical surface without side leakage. The conical flow guide and egg stabilizer are fixedly connected to the internal bottom structure of the fertilized egg hatching cup, ensuring no displacement during water flow impact. The bottom check valve employs a two-way anti-interference device, preventing backflow of water during water outages that could lead to oxygen deprivation for the fish eggs, and also avoiding cross-flow interference between adjacent units when multiple units are arranged side-by-side, causing localized water quality fluctuations. Its core innovation lies in its synergistic effect with the bottom inlet to achieve a three-in-one function of "flow guidance-egg stabilization-oxygenation": the conical curved surface guides the diffusion of water flow, ensuring that the bottom... The concentrated water flow in the 20mm pipe is transformed into a uniform upward flow (flow guidance), which keeps the fish eggs in a slightly suspended state (egg stabilization), while forming a 360° water circulation without dead angles (oxygenation), completely avoiding the problem of fish eggs being damaged by excessively strong water flow or accumulating due to excessively weak water flow.

[0033] Functions: This system allows for the precise cultivation of fertilized eggs. The "conical" structure guides water flow along the conical surface, preventing excessively high local flow velocities. Furthermore, this structure is compatible with the direction of water flow during bottom-entry egg washing. The "guided flow" function transforms the concentrated bottom-entry water flow into a uniform, rising or spreading flow, eliminating dead zones and preventing damage to the eggs from strong local flows or accumulation due to weak local flows. The "egg stabilization" function uses the guided flow to create a stable water circulation, keeping the eggs slightly suspended in the water. This meets the need for "slow-flow oxygenation" in mandarin fish fertilized eggs and prevents egg membrane adhesion or sinking to the bottom.

[0034] 2. 20mm pipe and 25mm pipe 20mm pipe (bottom interface): used for precise connection with the quick-release integrated interface of the modular pipe to achieve stable water input; used to form a water flow channel for "bottom water inlet flushing" in conjunction with the bottom water inlet pipe.

[0035] Φ25mm pipe (outlet on the cup): used to drain egg membranes, metabolic waste and excess water generated during the incubation process; used as a channel for seedlings to overflow during the lateral migration stage.

[0036] Its core innovation lies in its multi-dimensional modular adaptation design: (1) The spacing is adjustable: the spacing between the main water inlet pipe and the branch water inlet pipe can be adjusted according to... 120mm The diameter of the 150mm incubation cup is finely adjusted by ±5-10mm to achieve precise alignment between the cup and the tube, avoiding wasted space.

[0037] (2) Quick-release and quick-installation integrated interface: The connection between the pipe and the incubation cup adopts a quick-release interface, which can be assembled, replaced and reassembled without tools, greatly improving the efficiency of operation and adapting to the fast turnover needs of multi-batch breeding.

[0038] (3) Controllable water flow pattern: The pipeline is coordinated with the valve opening adjustment to realize the switching of three water flow modes: laminar flow, slow flow and directional flow. That is, laminar flow ensures suspension during the fertilized egg stage, slow flow strengthens sewage discharge during the molting period, and directional flow stimulates growth during the horizontal swimming period, breaking through the limitations of the traditional single water flow form.

[0039] 3. Modular piping The main inlet pipe and the branch inlet pipes work together to form the key core of the control system. Branch pipes are deliberately set at fixed intervals between the main inlet pipe and the branch inlet pipes to achieve uniform water distribution from the source. As for the direction of the branch inlet pipes, the selection of pipe diameter and valve opening are innovatively used as control means. This method is used to precisely control the hydraulic environment of each cup. This design is like positioning in a coordinate system, actively "drawing" an ideal water flow field, and fundamentally solving the problem of uneven water distribution.

[0040] 4. System integration and intelligent control: The incubation unit consists of multiple standard incubation cups, each with a diameter of [missing information]. 120mm and With a diameter of 150mm, this method effectively utilizes space. For water supply, the water pump is connected to the aforementioned modular piping to achieve water transport or separation.

[0041] 5. Example of the workflow of this invention: (1) System initialization and water flow establishment stage After the system is started, it automatically matches the pipe configuration and initial water flow parameters according to the specifications of the hatching cup. Operators only need to confirm that the dissolved oxygen is ≥6mg / L and the water flow is uniformly upward before releasing the eggs, without the need for complicated manual adjustments.

[0042] Water inlet method: After the system starts, the water pump will deliver oxygen-enriched water treated by the oxygenator to... Within the 20mm main water supply pipeline, the pipes can effectively deliver water to each branch unit. Next, the water flow will enter... A 25mm pipe has a large flow rate and low pressure loss. Finally, the water will enter the incubation cup in a laminar or slow flow form through the outlet holes or microporous aeration heads set at specific intervals on the pipe.

[0043] Key water volume control: Hydraulic adjustments must be completed before releasing the eggs. The water flow within the cup should be uniform and gentle, ideally allowing the eggs to tumble slightly without being scattered or piled up. Based on experimental results, controlling the water flow rate per unit cup width to 0.5 to 1.2 liters per minute per centimeter yields the best results. For example, for an egg with a diameter of... The 150mm cup body precisely adjusts the total flow rate between 7.5 and 18 liters per minute. Only when the dissolved oxygen level in the cup consistently reaches above 6 mg / L is it a clear signal that the system is ready to release eggs.

[0044] (2) Egg release operation and meticulous management during incubation Fertilized egg release and density: Once the system's water flow, dissolved oxygen, and temperature (preferably 22-26℃) have stabilized within the set parameters, egg release can begin. Egg release density is one of the key factors affecting hatching rate. This system, through uniform water flow distribution, can effectively support high egg release densities. After repeated verification, the optimal fertilized egg release density has been controlled at 30,000 to 50,000 eggs per cubic meter.

[0045] Dynamic control during incubation: Before the fertilized eggs hatch, a gentle water flow is created, with the flow rate controlled at 0.5 liters / minute·cm. This effectively suspends the fertilized eggs in the water, ensuring 360° oxygen supply while preventing strong water flow from washing the eggs past the outlet and avoiding mechanical damage. The hatching rate is increased to 95%.

[0046] Molting and Horizontal Swimming Stages: Management strategies should be adjusted accordingly during the molting stage, as a large number of egg membrane fragments are produced, making the larvae extremely vulnerable. Crucially, the water flow rate should be precisely increased by 20%-30% to effectively remove the fragments. Simultaneously, the flow rate must be controlled within a range absolutely harmless to the larvae. This precise intervention is key to preventing water quality deterioration and can maintain a relatively high larval survival rate of 90%. During the horizontal swimming stage, the water flow rate should be precisely controlled at 1.2 liters / minute·cm to avoid excessive flow that could lead to excessive energy expenditure or injury to the larvae. A stronger, directional water flow stimulates the larvae's swimming ability while efficiently removing metabolic waste, maintaining stable water quality.

[0047] Seedling removal from incubation cups: You can increase the water flow so that all the water overflows from the top outlet (Φ25mm pipe), or you can close the inlet valve and remove the inlet pipe to drain the water from the bottom.

[0048] Therefore, this invention provides an efficient adjustable micro-incubation system and method for mandarin fish breeding, which can overcome the limitations of traditional single water flow forms, improve the stability and accuracy of the incubation process, and reduce costs.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0050] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A highly efficient adjustable micro-incubation system for mandarin fish breeding, characterized in that, It includes a base, a plurality of uniformly arranged incubation modules disposed on the base, and a main pipe for connecting the incubation modules. The incubation module includes a base, a columnar body disposed on the upper surface of the base, a conical flow guide and egg stabilizer disposed at the bottom of the columnar body, a branch pipe disposed at the bottom of the columnar body, and an upper outlet conduit disposed at the top of the columnar body.

2. The adjustable micro-incubation system for high-efficiency mandarin fish breeding according to claim 1, characterized in that, The diameter of the columnar body is the same as the maximum diameter of the conical flow-guiding and stabilizing egg body.

3. The adjustable micro-incubation system for high-efficiency mandarin fish breeding according to claim 2, characterized in that, The top end of the branch pipe is connected to the bottom opening of the conical flow guide and stabilizer, and the bottom end is connected to the main pipe. A water inlet valve is provided on the bottom end of the branch pipe.

4. A highly efficient micro-incubation method for mandarin fish breeding, characterized in that, include: The system is started, and oxygen-enriched water is delivered to the incubation module through the main pipeline. The flow state inside the incubation module is initialized and adjusted to form a stable flow field. Based on the stable flow field of the incubation module, the environment before egg release is confirmed, and egg release and incubation management before membrane rupture are carried out. When the fertilized eggs enter the molting period, water flow adaptive regulation is carried out. Determine whether the fry have entered the lateral swimming stage. If so, optimize the water flow until the water environment is stable in the later stages of hatching, and then proceed with the fry collection operation to obtain fry.

5. The highly efficient micro-incubation method for mandarin fish breeding according to claim 4, characterized in that, The system is started, and oxygen-enriched water is delivered to the incubation module through the main pipeline. The flow pattern within the incubation module is then initialized and adjusted to establish a stable flow field, including: The system is started, and the water is pumped to the oxygenator for oxygenation treatment to generate oxygen-enriched water. The oxygen-enriched water is then transported to each branch pipe through the main pipeline, and then to each incubation module through the branch pipe. By adjusting the inlet valve, the flow rate of oxygen-enriched water entering the conical guide stabilizing egg body is adjusted to 0.5 to 1.2 liters / minute·cm. When the dissolved oxygen in the conical guide stabilizing egg body reaches 6 mg / L or more, the initial flow state adjustment in the cup is completed, and a stable flow field is formed.

6. The highly efficient micro-incubation method for mandarin fish breeding according to claim 5, characterized in that, Based on the stable flow field of the incubation module, the pre-egg release environment is confirmed, and egg release and pre-molting incubation management are carried out. When the fertilized eggs enter the molting period, water flow adaptive regulation is performed, including: Based on the stable flow field of the incubation module, determine whether the dissolved oxygen in the water is greater than or equal to 6 mg / L and whether the temperature is between 22°C and 26°C. If so, put the fertilized eggs into the conical flow-guiding stable egg body at a density range of 30,000 eggs per cubic meter to 50,000 eggs per cubic meter. The oxygen-enriched water flow is adjusted to 0.5 liters / minute·cm to form a gentle flow field. The fertilized eggs are suspended in the water through the water flow of the gentle flow field, and oxygen is supplied at 360° to complete the incubation management before hatching. Determine whether the fertilized egg has entered the shedding phase. If so, increase the flow rate of oxygen-enriched water to remove egg membrane fragments and complete the adaptive regulation of water flow.

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