Pond for white shrimp (penaeus vannamei) broodstock

Abstract

The present application relates to a kind of penaeus vannamei ovipositor breeding ponds, including several ovipositor breeding pond bodies, the upper portion in ovipositor breeding pond body is equipped with for the reproduction of seed shrimp spawning space, the lower portion of spawning space is equipped with for the hatching of shrimp eggs ovipositor space, the bottom of ovipositor space is equipped with one side with pool wall form the ovipositor bottom plate of positionable hinged, ovipositor bottom plate includes upper portion of egg-blocking net layer, middle portion of aeration layer, lower portion of water-permeable net layer, aeration layer is equipped with multiple aeration pipes, aeration pipe is communicated with external air source, aeration pipe is distributed with aeration hole, the lower portion of ovipositor space is equipped with for the cultivation of fry breeding space, the bottom of breeding space is equipped with fry outlet on one side.The present application uses the way of pond bottom aeration to replace the existing artificial ovipositor and mechanism ovipositor mode, integrates the hatching and fry function of prawn on the ovipositor breeding pond body, with better ovipositor effect, breeding yield is improved, breeding cost is reduced, and ovipositor breeding efficiency is significantly improved, etc.

Description

Technical Field

[0001] This invention relates to a special device for egg-raising and seedling cultivation of Litopenaeus vannamei, and particularly to an improved egg-raising and seedling cultivation pond for Litopenaeus vannamei, belonging to the field of egg-raising and seedling cultivation of Litopenaeus vannamei. Background Technology

[0002] The whiteleg shrimp, also known as the white shrimp or white-skinned shrimp, belongs to the genus Penaeus of the family Penaeidae in the order Decapoda. It has a thin shell, a light bluish-gray body color, and small spots on its surface. With an average lifespan exceeding 32 months, it is one of the world's three major farmed shrimp species. Due to its thin shell, plump body, warm nature, and sweet taste, the whiteleg shrimp is believed to have kidney-tonifying and aphrodisiac effects, making it very popular. Therefore, it has high economic and nutritional value and has become a widely promoted shrimp species in aquaculture across China. During reproduction, female shrimp release eggs under suitable conditions, while male shrimp release sperm. The sperm and eggs meet in the water and fertilization occurs, forming fertilized eggs. In natural water bodies, fertilized eggs float on the water's flow. However, in artificial aquaculture environments, these fertilized eggs gradually settle at the bottom of the pond. When the number of settled fertilized eggs reaches a certain level, it causes oxygen deficiency among the bottom-dwelling fertilized eggs, thus affecting the normal hatching process and reducing yield. Therefore, it is necessary to perform egg-pushing operations in a timely manner after the broodstock shrimp lay their eggs. Egg-pushing refers to using tools to disturb the water at the bottom of the pond, causing the water to flow to a certain extent. This allows the fertilized eggs deposited at the bottom of the pond to move upwards due to the influence of the water flow, thereby obtaining a more sufficient oxygen supply and improving the hatching rate and yield.

[0003] Currently, the main methods for promoting shrimp spawning in shrimp farming are manual spawning and mechanical spawning. Manual spawning involves farmers manually operating a pusher-like tool, typically consisting of a pusher and a pusher plate. The farmer holds the pusher and inserts the pusher plate into the bottom of the pond, using arm and body movements to move the water at the bottom, thus causing the fertilized eggs settled at the bottom to rise to the surface and obtain more oxygen. Manual spawning requires timed manual operation of a specialized tool to promote water flow, resulting in high labor intensity and potential dead zones in the spawning process, affecting the hatching rate and yield of shrimp larvae. Mechanical spawning primarily uses various power-driven mechanical mechanisms to achieve the spawning operation. A typical mechanical spawning method uses a walking mechanism mounted on the pond to drive a specialized tool, thus replacing manual operation with powered machinery. However, these walking mechanisms require regular maintenance; if maintenance is not timely, problems such as jamming or malfunction can occur, generating additional wear and noise, affecting the hatching and rearing environment, and increasing production costs. Meanwhile, existing egg-pushing methods only meet the requirements for shrimp egg hatching. After the shrimp eggs hatch into larvae, they need to be transferred to other nursery ponds for further cultivation. Therefore, it is necessary to remove the hatched larvae from the egg-pushing pond and transfer them to the nursery pond. This process is time-consuming and labor-intensive, and can easily damage the larvae, thus affecting yield. In order to improve the drawbacks of the existing egg-pushing nursery method, it is necessary for those skilled in the art to carry out targeted improvement designs. Summary of the Invention

[0004] This invention discloses a novel solution for a shrimp spawning and rearing pond. It replaces existing manual and mechanical spawning methods with bottom aeration, integrating shrimp hatching and rearing functions into a single spawning and rearing pond. The pond is divided into spawning space, spawning space, and rearing space. The spawning space facilitates broodstock reproduction, the spawning space facilitates egg hatching, and the rearing space facilitates larval rearing. An aeration plate at the bottom of the spawning space enables aeration and spawning operations, while ensuring water permeability and preventing shrimp eggs from sinking into the rearing space. This solution addresses the problems of high labor intensity and potential blind spots in manual spawning methods, which affect hatching rates and yields; mechanical spawning methods, which can cause jamming or malfunctions, impacting the hatching and rearing environment and increasing production costs; and mechanical methods, which, due to their single function, cannot simultaneously handle both hatching and rearing processes, necessitating the removal and transfer of hatched larvae, leading to time-consuming, labor-intensive processes, potential damage to larvae, and reduced yields.

[0005] This invention relates to a shrimp spawning and rearing pond for Litopenaeus vannamei, comprising several spawning and rearing pond bodies. The upper part of each spawning and rearing pond body has an spawning space for breeding shrimp. Below the spawning space is a spawning space for hatching shrimp eggs. The bottom of the spawning space has a spawning bottom plate that can be hinged to the pond wall on one side. The spawning bottom plate includes an upper egg-blocking net layer, a middle aeration layer, and a lower permeable net layer. The aeration layer contains multiple aeration pipes connected to an external air source, and aeration holes are arranged on the aeration pipes. Below the spawning space is a rearing space for cultivating shrimp larvae, and a shrimp larvae outlet is located on one side of the bottom of the rearing space.

[0006] Furthermore, this solution also includes an automatic aeration and egg-pushing control system. The automatic aeration and egg-pushing control system includes several sets of underwater cameras installed on the egg-pushing bottom plate. The underwater cameras are communicatively connected to the image analysis module, and the image analysis module is communicatively connected to the aeration control module. The image analysis module analyzes the density of shrimp eggs on the egg-pushing bottom plate based on the received image data. The aeration control module controls the opening and closing of the aeration pipe based on whether the density of shrimp eggs exceeds a preset threshold range.

[0007] Furthermore, the bottom of the spawning space in this design is equipped with a partition mesh plate, which includes an outer frame. One side of the outer frame is equipped with a tilt adjustment mechanism, which forms an upper and lower guide sliding connection with the pool wall. The opposite side of one side of the outer frame is slidably hinged to the perforated hinge lug on the pool wall. A partition mesh layer is installed on the outer frame. The mesh diameter of the partition mesh layer is smaller than the minimum external size of the broodstock shrimp, while the mesh diameter of the partition mesh layer is larger than the maximum external size of the shrimp eggs. An outlet is provided on the pool wall above the perforated hinge lug.

[0008] Furthermore, the tilt adjustment mechanism of this solution includes an I-shaped guide slider. The two ends of the guide slider are connected to the vertical I-shaped guide rails on the pool wall via guide rollers to form a rolling guide connection. A drive motor is provided on one side of the guide slider. The output shaft of the drive motor, which extends into the guide slider, is equipped with a drive gear. The drive gear is connected to the vertical rack on the opposite pool wall to form a gear transmission connection. The guide slider is hinged to one side of the outer frame of the mesh plate via a hinge lug.

[0009] Furthermore, in this scheme, the mesh diameter of the egg-blocking net layer is smaller than the minimum external size of the shrimp eggs. On the side of the aeration pipe opposite to the egg-blocking net layer, there are multiple rows of aeration holes arranged equidistantly along the circumference. Each row of aeration holes includes multiple aeration holes arranged equidistantly along the axial direction.

[0010] Furthermore, the egg-pushing space of this scheme is provided with an upright flow channel baffle in the middle, with large guide holes at both ends of the flow channel baffle and guide paddles inside the large guide holes. A horizontal baffle connecting plate is provided in the middle of the flow channel baffle, and the baffle connecting plate is connected to the pool wall. The flow channel baffle divides the egg-pushing space into a ring-shaped closed flow channel space.

[0011] Furthermore, the lower part of the seedling raising space in this scheme is provided with a seedling raising net plate, which includes a seedling raising net outer frame. One side of the seedling raising net outer frame forms a positionable hinge with the pool wall. A seedling blocking net layer is installed on the seedling raising net outer frame. The mesh diameter of the seedling blocking net layer is smaller than the minimum size of the shrimp seedlings. The seedling raising net plate divides the seedling raising space into an upper shrimp seedling cultivation space and a lower water exchange space. The bottom of the water exchange space on one side of the hinge end of the seedling raising outer frame is provided with a water exchange outlet, and the bottom of the other side of the water exchange space opposite to the water exchange outlet is provided with a shrimp seedling outlet.

[0012] Furthermore, the seedling raising space in this solution is equipped with a temperature control component and a temperature sensor. The temperature control component forms a heat transfer connection with the water in the seedling raising space. The temperature sensor is communicatively connected to the temperature control circuit. The temperature control circuit is electrically connected to the temperature control component. The temperature control circuit activates or deactivates the temperature control component based on whether the received temperature parameters exceed the preset temperature control threshold range. The pool wall material of the seedling raising space is a light-transmitting material.

[0013] Furthermore, the seedling netting of this solution is equipped with a walking brush mechanism above it. The walking brush mechanism includes a walking mechanism on opposite sides of the pool wall. The walking mechanism includes a walking drive shaft, a walking driven shaft, and a walking drag belt. The walking drive shaft is connected to the walking driven shaft through the walking drag belt. Several strip brush components are connected between the walking drag belts. The brush bristles of the strip brush components form a pressing sliding friction connection with the flat seedling barrier netting layer.

[0014] Furthermore, the pool wall of this design is provided with walking guide grooves on both opposite sides, and the walking drag belt is located in the walking guide grooves. The strip brush component includes a strip brush beam, and the side of the strip brush beam opposite to the seedling blocking net layer is densely covered with bristles. Both ends of the strip brush beam are provided with walking guide sliders, which are connected to the walking drag belts in opposite positions. At least one side of the walking guide slider opposite to the inner side of the walking guide groove is provided with several slider rollers, and the slider rollers form a guiding rolling connection with the wheel rails on the inner wall of the walking guide groove in opposite positions.

[0015] This invention relates to a shrimp spawning and rearing pond that replaces existing manual and mechanical spawning methods with bottom aeration. It eliminates the need for manual or power-driven specialized tools for spawning, significantly reducing labor intensity and avoiding potential blind spots and damage to eggs caused by improper operation. It also completely eliminates the mechanical jamming and operational difficulties associated with power-driven spawning, as well as other factors detrimental to hatching and rearing. This significantly reduces production and maintenance costs associated with mechanical operation. This solution integrates shrimp hatching and rearing functions into a single spawning and rearing pond, dividing it into spawning, spawning, and rearing spaces. The spawning space facilitates broodstock reproduction, the spawning space enables egg hatching, and the rearing space nurtures larvae. This overcomes the problem of larval damage during larval transport, which negatively impacts yield, and saves manpower and costs associated with transport operations. It significantly improves shrimp hatching and rearing efficiency and substantially reduces shrimp farming costs. This solution utilizes an egg-pushing bottom plate at the bottom of the egg-pushing space to achieve aeration and egg-pushing operations. Simultaneously, while ensuring water permeability, it prevents shrimp eggs from sinking into the nursery space. Using a positionable hinged connection between the egg-pushing bottom plate and the pond wall, after the shrimp eggs have hatched, the bottom plate is opened by controlling rotation to connect the egg-pushing space and the nursery space. The larvae are then transferred to the nursery space below by controlling the water level. Therefore, this solution solves the problems of existing similar solutions, such as high labor intensity due to manual egg-pushing, potential dead zones affecting hatching rates and yields, and mechanical egg-pushing methods leading to jamming or malfunctions, impacting the hatching and nursery environment, increasing production costs. Furthermore, it addresses the limitations of existing methods that rely solely on manual egg-pushing, which cannot simultaneously handle both hatching and nursery processes, necessitating the removal and transfer of hatched larvae, resulting in time-consuming, labor-intensive processes, potential damage to larvae, and reduced yields. This solution offers superior egg-pushing efficiency, increased production, reduced farming costs, and significantly improved egg-pushing and nursery efficiency. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the internal state of the egg-raising and seedling-nurturing pool.

[0017] Figure 2 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0018] Figure 3 yes Figure 1 A top-down enlarged view of section A.

[0019] Figure 4 yes Figure 1 Enlarged schematic diagram of section B.

[0020] Figure 5 yes Figure 1A schematic diagram of the CC section.

[0021] Figure 6 yes Figure 1 Enlarged schematic diagram of section D in the middle.

[0022] Figure 7 yes Figure 1 A top-view partial cross-sectional diagram of section D in the middle.

[0023] Figure 8 yes Figure 1 Enlarged schematic diagram of section E in the middle.

[0024] Figure 9 This is a front view schematic diagram of the internal state of the egg-raising and seedling-nurturing pool.

[0025] Figure 10 This is a schematic diagram of an expanded spawning pond for Litopenaeus vannamei.

[0026] in,

[0027] 100 is the spawning and rearing pond; 110 is the spawning space; 120 is the spawning space; 130 is the rearing space; 131 is the guiding trough; and 140 is the shrimp larvae outlet.

[0028] 200 is the separator mesh plate, 210 is the outer frame of the separator mesh, 220 is the tilt adjustment mechanism, 221 is the guide slider, 222 is the guide roller, 223 is the guide rail, 224 is the drive motor, 225 is the drive gear, 226 is the rack, 230 is the perforated hinge lug, 240 is the separator mesh layer, and 250 is the shrimp outlet.

[0029] 300 is the egg-pushing bottom plate, 310 is the egg-blocking net layer, 320 is the aeration layer, 330 is the aeration pipe, 331 is the aeration hole, and 340 is the permeable net layer.

[0030] 400 is the flow channel baffle, 410 is the large guide hole, 420 is the guide impeller, 430 is the baffle connecting plate, and 440 is the flow channel space.

[0031] 500 is the seedling mesh panel, 510 is the outer frame of the seedling mesh, 520 is the seedling-blocking mesh layer, 530 is the water exchange space, and 540 is the drainage outlet.

[0032] 600 is the walking brush mechanism, 610 is the walking drive shaft, 620 is the walking driven shaft, 630 is the walking drag belt, 641 is the brush bristles, 650 is the walking guide slider, and 651 is the slider roller. Detailed Implementation

[0033] The following is a detailed explanation with reference to the attached diagram.

[0034] like Figure 1 , 6As shown in Figures 7, 9, and 10, the Pacific white shrimp spawning and rearing pond of the present invention includes several spawning and rearing pond bodies 100. The upper part of the spawning and rearing pond body 100 is provided with an spawning space 110 for the reproduction of broodstock shrimp. Below the spawning space 110 is a spawning space 120 for the hatching of shrimp eggs. The bottom of the spawning space 120 is provided with a spawning bottom plate 300 that can be positioned and hinged to the pond wall on one side. The spawning bottom plate 300 includes an upper egg-blocking net layer 310, a middle aeration layer 320, and a lower permeable net layer 340. The aeration layer 320 is provided with multiple aeration pipes 330, which are connected to an external air source. Aeration holes 331 are arranged on the aeration pipes 330. Below the spawning space 120 is a rearing space 130 for the cultivation of shrimp larvae. A shrimp larvae outlet 140 is provided on one side of the bottom of the rearing space 130.

[0035] The above-mentioned scheme for the Pacific white shrimp spawning pond uses bottom aeration instead of the existing manual and mechanical spawning methods. Aeration points are placed at the bottom of the 120mm spawning space. This aeration not only disperses and lifts the deposited shrimp eggs but also simultaneously replenishes oxygen from the bottom up. This eliminates the need for manual or power-driven tools for spawning, significantly reducing labor intensity and avoiding potential blind spots and damage to the eggs caused by improper operation. It also completely eliminates the problems of mechanical jamming and malfunction caused by power-driven spawning mechanisms, as well as other factors detrimental to hatching and spawning. This significantly reduces production and maintenance costs associated with mechanical operation and improves spawning efficiency. Simultaneously, Figure 10 An extended version of this scheme is shown, which can increase the breeding output in a limited space by stacking the egg-raising and seedling tanks 100 one on top of the other, thereby significantly improving the economic benefits of shrimp farming.

[0036] This solution integrates shrimp hatching and seedling rearing functions into a single egg-pushing and seedling rearing pond 100, which is divided into a spawning space 110, an egg-pushing space 120, and a seedling rearing space 130. The spawning space facilitates the breeding process of broodstock shrimp. In practice, broodstock shrimp should be placed in the spawning space 110 at appropriate times and under suitable conditions. After spawning, they should be removed, at which point the shrimp eggs will have settled into the egg-pushing space 120. The egg-pushing space facilitates the hatching process of the shrimp eggs. In practice, aeration should be activated after the shrimp eggs have settled to a certain extent. The upward airflow disperses the settled shrimp eggs while simultaneously replenishing oxygen from the bottom up, thus alleviating the oxygen deficiency problem of the bottom-layer shrimp eggs. The larval rearing process is achieved by utilizing the rearing space. In actual operation, the egg-pushing bottom plate 300 is rotated downward around the hinge end, thereby connecting the egg-pushing space 120 and the rearing space 130. At this time, the larvae in the egg-pushing space 120 can be lowered into the rearing space 130 from the connection point by methods such as lowering the water level. This overcomes the problem of damage to larvae and reduced yield that easily occurs when transferring larvae in existing similar solutions. It saves the manpower and cost of transfer operations, greatly improves the production efficiency of shrimp hatching and rearing, and significantly reduces the cost of shrimp farming. This scheme utilizes the egg-pushing bottom plate 300 at the bottom of the egg-pushing space to achieve aeration and egg-pushing operation. At the same time, while ensuring water permeability, it prevents shrimp eggs from falling into the seedling space 130. By utilizing the positionable hinged relationship formed between the egg-pushing bottom plate 300 and the pond wall, after the shrimp eggs have hatched, the egg-pushing bottom plate 300 is opened by controlling the rotation to connect the egg-pushing space 120 and the seedling space 130. Then, by controlling the water level, the larvae are transferred to the seedling space 130 below, thus achieving the technical goal of efficient integrated hatching and seedling raising.

[0037] Therefore, this solution solves the problems of high labor intensity, potential blind spots in egg pushing, and impact on hatching rate and yield of shrimp larvae caused by manual egg pushing in existing similar solutions, as well as mechanical egg pushing methods that suffer from mechanical jamming or malfunction, affecting the hatching and seedling rearing environment and increasing production costs. Furthermore, due to their single function, they cannot simultaneously handle the hatching and seedling rearing processes, and must remove and transfer the hatched larvae, resulting in time-consuming and labor-intensive processes, easy damage to larvae, and impact on yield. This solution has the characteristics of better egg pushing effect, increased breeding yield, reduced breeding cost, and significantly improved egg pushing and seedling rearing efficiency.

[0038] Based on the above scheme, in order to objectively analyze the density of shrimp egg deposition, accurately grasp the timing of aeration, promote adequate oxygen supply to bottom-dwelling shrimp eggs, and improve hatching rate and yield, this scheme discloses an automatic aeration and egg-pushing control system. The automatic aeration and egg-pushing control system includes several sets of underwater cameras installed on the egg-pushing bottom plate 300. The underwater cameras are communicatively connected to an image analysis module, which in turn is communicatively connected to an aeration control module. The image analysis module analyzes the density of shrimp egg accumulation on the egg-pushing bottom plate 300 based on the received image data. The aeration control module controls the opening and closing of the aeration pipe 330 based on whether the density of shrimp egg accumulation exceeds a preset threshold range. The fertilized eggs of Litopenaeus vannamei are approximately 0.28 mm in size, and in some cases even visible to the naked eye. This provides an opportunity for underwater cameras to capture the density of shrimp egg deposits. By analyzing and estimating the density of shrimp egg accumulation in real time and comparing it with a preset threshold range, it is possible to accurately determine whether egg-pushing operations are necessary. For example, if the density of shrimp eggs exceeds the preset threshold range, the aeration pipe 330 is activated through the aeration control module, thereby promptly addressing the oxygen deficiency problem of shrimp eggs at the bottom and improving the hatching rate and aquaculture yield.

[0039] After the broodstock shrimp have finished spawning, they need to be harvested and transferred. To facilitate harvesting and transfer and avoid the time-consuming and labor-intensive drawbacks of manual harvesting, this solution discloses a mechanism for easily transferring broodstock shrimp. For example... Figure 1 , 2 As shown in Figure 4, the bottom of the spawning space 110 in this design is equipped with a partition mesh plate 200. The partition mesh plate 200 includes a partition mesh outer frame 210. One side of the partition mesh outer frame 210 is equipped with a tilt adjustment mechanism 220, which forms a vertical guide sliding connection with the pool wall. The opposite side of one side of the partition mesh outer frame 210 forms a sliding hinge with the perforated hinge lug 230 on the pool wall. A partition mesh layer 240 is installed on the partition mesh outer frame 210. The mesh diameter of the partition mesh layer 240 is smaller than the minimum external dimension of the broodstock shrimp, and larger than the maximum external dimension of the shrimp eggs. An outlet 250 is provided on the pool wall above the perforated hinge lug 230. The partition mesh layer 240 allows shrimp eggs to enter the spawning space 120 while preventing broodstock shrimp from entering the spawning space 120, thereby controlling the broodstock shrimp within the spawning space 110 and facilitating their transfer. Figure 9 As shown, when it is necessary to transfer the broodstock shrimp, it is only necessary to control the tilt adjustment mechanism 220 to move up and down along the pool wall, so that the dividing net plate 200 is tilted. Then, the shrimp outlet 250 is opened. At this time, the broodstock shrimp will be discharged from the shrimp outlet 250 along the tilted dividing net plate 200, thereby achieving the technical purpose of automatically and quickly catching and transferring the broodstock shrimp, reducing the labor intensity of personnel and improving the operational efficiency.

[0040] Based on the above scheme, in order to realize the function of the tilt adjustment mechanism 220, ensure the stability of the mechanism's operation, reduce wear, and improve the mechanism's operating efficiency, this scheme discloses the specific mechanism settings. For example... Figure 2 , 3 As shown, the tilt adjustment mechanism 220 of this scheme includes an I-shaped guide slider 221. Both ends of the guide slider 221 are connected to the vertically oriented I-shaped guide rails 223 on the pool wall via guide rollers 222, forming a rolling guide connection. A drive motor 224 is provided on one side of the guide slider 221. A drive gear 225 is provided on the output shaft of the drive motor 224, which extends into the guide slider 221. The drive gear 225 forms a gear transmission connection with a vertically oriented rack 226 on the opposite pool wall. The guide slider 221 is hinged to one side of the outer frame of the mesh plate via a hinge lug. When the mechanism is running, the drive motor 224 drives the drive gear 225 to rotate. Based on its gear transmission connection with the stationary rack 226, the guide slider 221 moves upward along the guide rail 223, simultaneously causing one side of the partition mesh plate 200 to move upward, while its opposite side remains horizontal, thus achieving a tilted state. The rolling guide connection method using guide roller 222 can significantly reduce friction, avoid excessive wear of the mechanism, and improve the service life and operating efficiency of the mechanism.

[0041] To prevent shrimp eggs from falling into the rearing space 130 while ensuring that the airflow generated by aeration enters the egg-pushing space 120 upwards, this solution discloses a specific configuration method. For example... Figure 1 , 6 As shown in Figure 7, the mesh diameter of the egg-blocking net layer 310 in this design is smaller than the minimum external size of shrimp eggs. The aeration pipe 330 has multiple rows of aeration holes arranged equidistantly along the circumference on the side opposite to the egg-blocking net layer 310. Each row of aeration holes includes multiple aeration holes 331 arranged equidistantly along the axial direction. The fertilized eggs of the Pacific white shrimp have a particle size of approximately 0.28 mm. The egg-blocking net layer 310 can be manufactured according to this size, and materials such as nylon, polyester fiber, and stainless steel wire can be used. The aeration holes 331 of the aeration pipe 330 are directly opposite the bottom of the egg-blocking net layer 310, and the aeration angle is distributed in an arc-shaped range. This promotes aeration, allowing the aeration surface to enter the egg-pushing space 120. The evenly distributed aeration from bottom to top avoids dead zones in egg pushing and significantly improves the egg-pushing effect.

[0042] To further improve the egg-laying effect, prolong the drifting time of shrimp eggs in the water, and simulate the growth and hatching environment of natural water bodies, this scheme discloses specific structural settings. For example... Figure 1 , 5As shown, in this design, the egg-pushing space 120 has a vertical flow channel baffle 400 in the middle, and large guide holes 410 at both ends of the flow channel baffle 400. Guide paddles 420 are installed inside the large guide holes 410. A horizontal baffle connecting plate 430 is located in the middle of the flow channel baffle 400 and is connected to the pool wall. The flow channel baffle 400 divides the egg-pushing space 120 into a closed annular flow channel space 440. The flow channel baffle 400 is connected to the pool wall via the baffle connecting plate 430, thus ensuring structural stability. The large guide holes 410 at both ends of the flow channel baffle 400 ensure that the egg-pushing space 120 divided by the flow channel baffle 400 forms a closed annular flow channel space 440. Figure 5 The circular dotted line in the diagram indicates the water flow path. The guide paddle 420 can cause the water to flow along the circular dotted line, thereby simulating the water flow state in the natural environment. This allows the shrimp eggs that are blown up by the aeration to circulate with the water flow, improving the hatching effect of the shrimp eggs.

[0043] To realize the functionality of the 130-slot seedling rearing space, meet the requirements of timely water changes during shrimp larvae rearing, and facilitate the transfer of shrimp larvae in the later stages of rearing, this plan discloses the specific organizational structure. For example... Figure 1 , 8 As shown in Figure 9, the lower part of the seedling raising space 130 in this scheme is equipped with a seedling raising net plate 500. The seedling raising net plate 500 includes a seedling raising net outer frame 510. One side of the seedling raising net outer frame 510 forms a positionable hinge with the pool wall. A seedling blocking net layer 520 is installed on the seedling raising net outer frame 510. The mesh diameter of the seedling blocking net layer 520 is smaller than the minimum external size of the shrimp seedlings. The seedling raising net plate 500 divides the seedling raising space 130 into an upper shrimp seedling cultivation space and a lower water exchange space 530. The bottom of the water exchange space 530 on the hinged end of the seedling raising outer frame is equipped with a drain outlet 540. The bottom of the other side of the water exchange space 530 opposite to the drain outlet 540 is equipped with a shrimp seedling outlet 140. When it is necessary to change the water for seedling raising, it is only necessary to open the drain outlet 540 to achieve the purpose of discharging wastewater and simultaneously introduce water suitable for aquaculture. At this time, the seedling blocking net layer 520 can prevent the shrimp seedlings from entering the water exchange space 530 downwards, avoiding the loss of shrimp seedlings. When shrimp larvae reach a certain production stage and need to be transferred for further cultivation, simply control the larvae cultivation net 500 to rotate downwards along the hinge until the opposite end of the hinge contacts the bottom of the water exchange space 530, thus preventing the shrimp larvae cultivation space from connecting with the water exchange space 530. Then, open the shrimp larvae outlet 140 and transfer the shrimp larvae from the shrimp larvae cultivation space to the spawning pond 100 by controlling the water level and other methods. This avoids the process of manual retrieval, water exchange, and transfer, significantly improving the efficiency of water exchange and shrimp larvae transfer.

[0044] Based on the above solutions, to meet the temperature and light requirements of seedling cultivation, this solution discloses a temperature and light control setting. Specifically, the seedling cultivation space 130 of this solution is equipped with a temperature control component and a temperature sensor. The temperature control component forms a heat transfer connection with the water in the seedling cultivation space 130. The temperature sensor is communicatively connected to the temperature control circuit, and the temperature control circuit is electrically connected to the temperature control component. The temperature control circuit activates and deactivates the temperature control component based on whether the received temperature parameters exceed a preset temperature control threshold range. The pool wall material of the seedling cultivation space 130 is a light-transmitting material. When the temperature of the cultivation water exceeds the preset temperature threshold range, the temperature control circuit will activate the temperature control component, thereby adjusting the temperature of the cultivation water to meet the seedling cultivation requirements. Simultaneously, the light transmittance of the pool wall material of the seedling cultivation space 130 can also be adjusted to meet the light requirements for seedling cultivation.

[0045] During the seedling cultivation process, various deposits are generated. The long-term accumulation of these deposits can lead to clogging of the seedling barrier mesh layer 520. To promptly remove deposits from the seedling mesh plate 500 and prevent clogging, this solution discloses the specific cleaning mechanism setup. For example... Figure 1 , 8 As shown, the seedling mesh 500 of this solution is equipped with a traveling brush mechanism 600 above it. The traveling brush mechanism 600 includes a traveling mechanism located on opposite sides of the pool wall. The traveling mechanism includes a traveling drive shaft 610, a traveling driven shaft 620, and a traveling drag belt 630. The traveling drive shaft 610 is connected to the traveling driven shaft 620 via the traveling drag belt 630. Several strip brush components are connected between the traveling drag belts 630. The bristle side of the strip brush components forms a pressing sliding friction connection with the flat seedling barrier mesh layer 520. When it is necessary to remove the sediment on the seedling barrier mesh layer 520, it is only necessary to turn on the drive device connected to the traveling drive shaft 610 to achieve the technical purpose of reciprocating cleaning of the seedling barrier mesh layer 520 by driving the strip brush components through the traveling drag belt 630.

[0046] Based on the above scheme, in order to realize the function of the brush component of the mechanism and meet the requirements of space saving and stable operation of the mechanism, this scheme discloses the specific structure and mechanism settings. For example... Figure 1 , 8As shown, the pool wall of this design has walking guide grooves 131 on opposite sides. A walking drag belt 630 is located within the walking guide grooves 131. The brush component includes a brush beam with bristles 641 densely distributed on the side of the brush beam opposite to the seedling barrier layer 520. Walking guide sliders 650 are located at both ends of the brush beam. The walking guide sliders 650 are connected to the corresponding walking drag belt 630. At least one side of the walking guide slider 650, opposite the inner side of the walking guide groove 131, is equipped with several slider rollers 651. The slider rollers 651 form a guiding rolling connection with the wheel rails on the inner wall of the corresponding walking guide groove 131. Placing the walking mechanism within the walking guide groove 131 not only avoids occupying space within the pool but also facilitates stable operation. Furthermore, the guiding rolling connection between the walking guide sliders 650 and the walking guide groove 131 significantly improves the stability of the brush beam's operation, avoids excessive friction, saves drag energy, and extends the service life of the components.

[0047] Unless otherwise specified, the systems, structures, mechanisms, and components disclosed in this solution can all be implemented using common and conventional solutions known in the art. The Pacific white shrimp spawning and rearing pond described in this solution is not limited to the content disclosed in the specific implementation embodiments. The technical solutions appearing in the embodiments can be extended based on the understanding of those skilled in the art, and simple substitutions made by those skilled in the art based on this solution and common knowledge also fall within the scope of this solution.

Claims

1. A breeding pond for Litopenaeus vannamei ova pusher, characterized by: The system includes several egg-raising and rearing ponds. The upper part of each egg-raising and rearing pond has an spawning space for breeding shrimp. Below the spawning space is an egg-pushing space for hatching shrimp eggs. The bottom of each egg-pushing space has an egg-pushing bottom plate that can be hinged to the pond wall on one side. The egg-pushing bottom plate includes an upper egg-blocking net layer, a middle aeration layer, and a lower permeable net layer. The aeration layer has multiple aeration pipes that are connected to an external air source and have aeration holes. Below the egg-pushing space is a rearing space for raising shrimp larvae. The bottom side of the rearing space has a shrimp larvae outlet. It also includes an automatic aeration and egg-pushing control system, which includes several sets of underwater cameras installed on the egg-pushing bottom plate. The underwater cameras are communicatively connected to an image analysis module, and the image analysis module is communicatively connected to an aeration control module. The image analysis module analyzes the density of shrimp eggs on the egg-pushing bottom plate based on the received image data, and the aeration control module controls the opening and closing of the aeration pipe based on whether the density of shrimp eggs exceeds a preset threshold range. The egg-pushing space is provided with an upright flow channel baffle in the middle, and the flow channel baffle is provided with large flow guide holes at both ends. The large flow guide holes are provided with flow guide paddles. The flow channel baffle is provided with a horizontal baffle connecting plate in the middle, and the baffle connecting plate is connected to the pool wall. The flow channel baffle divides the egg-pushing space into an annular closed flow channel space.

2. The shrimp spawning and rearing pond according to claim 1, characterized in that... The bottom of the spawning space is equipped with a partition mesh plate, which includes an outer frame. One side of the outer frame is equipped with a tilt adjustment mechanism, which is slidably connected to the pool wall. The opposite side of one side of the outer frame is slidably hinged to the perforated hinge lug on the pool wall. A partition mesh layer is installed on the outer frame. The mesh diameter of the partition mesh layer is smaller than the minimum external size of the broodstock shrimp, and the mesh diameter of the partition mesh layer is larger than the maximum external size of the shrimp eggs. An outlet is provided on the pool wall above the perforated hinge lug.

3. The Litopenaeus vannamei spawning and rearing pond according to claim 2, characterized in that... The tilt adjustment mechanism includes an I-shaped guide slider. The two ends of the guide slider are connected to the vertically oriented I-shaped guide rails on the pool wall via guide rollers to form a rolling guide connection. A drive motor is provided on one side of the guide slider. The output shaft of the drive motor, which extends into the guide slider, is provided with a drive gear. The drive gear is connected to the vertically oriented rack on the opposite pool wall to form a gear transmission connection. The guide slider is hinged to one side of the outer frame of the mesh plate via a hinge lug.

4. The spawning pond for Litopenaeus vannamei according to claim 1, characterized in that... The mesh diameter of the egg-blocking net layer is smaller than the minimum external size of the shrimp eggs. The aeration pipe has multiple rows of aeration holes arranged equidistantly along the circumference on the side opposite to the egg-blocking net layer. The rows of aeration holes include multiple aeration holes arranged equidistantly along the axial direction.

5. The spawning and rearing pond for Litopenaeus vannamei according to claim 1, characterized in that... The lower part of the seedling raising space is provided with a seedling raising net plate, which includes a seedling raising net outer frame. One side of the seedling raising net outer frame is hinged to the pool wall. A seedling blocking net layer is installed on the seedling raising net outer frame. The mesh diameter of the seedling blocking net layer is smaller than the minimum size of the shrimp seedlings. The seedling raising net plate divides the seedling raising space into an upper shrimp seedling cultivation space and a lower water exchange space. The bottom of the water exchange space on the hinged end side of the seedling raising net outer frame is provided with a water exchange outlet, and the bottom of the other side of the water exchange space opposite to the water exchange outlet is provided with a shrimp seedling outlet.

6. The Litopenaeus vannamei spawning and rearing pond according to claim 5, characterized in that... The seedling raising space is equipped with a temperature control component and a temperature sensor. The temperature control component is heat-transferringly connected to the water in the seedling raising space. The temperature sensor is communicatively connected to the temperature control circuit. The temperature control circuit is electrically connected to the temperature control component. The temperature control circuit activates or deactivates the temperature control component based on whether the received temperature parameters exceed a preset temperature control threshold range. The pool wall of the seedling raising space is made of a light-transmitting material.

7. The Litopenaeus vannamei spawning and rearing pond according to claim 5, characterized in that... A walking brush mechanism is provided above the seedling net plate. The walking brush mechanism includes walking mechanisms on opposite sides of the pool wall. The walking mechanism includes a walking drive shaft, a walking driven shaft, and a walking drag belt. The walking drive shaft is connected to the walking driven shaft through the walking drag belt. Several strip brush components are connected between the walking drag belts. The brush bristles of the strip brush components form a pressing sliding friction connection with the flat seedling barrier net layer.

8. The Litopenaeus vannamei spawning and rearing pond according to claim 7, characterized in that... The pool wall has walking guide grooves on opposite sides, and the walking drag belt is located in the walking guide grooves. The strip brush component includes a strip brush beam, and the side of the strip brush beam opposite to the seedling barrier layer is densely covered with bristles. Both ends of the strip brush beam are provided with walking guide sliders, and the walking guide sliders are connected to the walking drag belts located opposite each other. At least one side of the walking guide slider opposite to the inner side of the walking guide groove is provided with a plurality of slider rollers, and the slider rollers form a guiding rolling connection with the wheel rails on the inner wall of the walking guide groove located opposite each other.

Images