Juvenile fish cultivation apparatus and method

Abstract

A juvenile fish cultivation apparatus and method, relating to the technical field of aquaculture. The juvenile fish cultivation apparatus comprises a cultivation tank (1), a visual identification apparatus (3), a translation mechanism, and a feeder capable of timed activation. A cultivation pond (2) is provided in the cultivation tank (1); the cultivation pond (2) is divided into three feeding areas by means of partition plates (9); isolation holes (11) and a fish pass gate (10) capable of opening and closing are provided on each partition plate (9); and fish guiding devices (5) are provided in the feeding areas located on both sides. The feeder is translated by means of the translation mechanism; the translation direction is perpendicular to the arrangement direction of the feeding areas; and the feeder can swing reciprocatingly for feeding. The visual identification apparatus (3) comprises a visual module and a control module; when the visual module detects that a juvenile fish in the middle feeding area has grown to a preset large-size, the fish pass gate (10) opens and the fish guiding devices (5) are started; and when there is no juvenile fish in the middle feeding area, the fish pass gate (10) closes and the fish guiding devices (5) are turned off. Regular and dosed feeding can be achieved, inconvenient feeding caused by aggregated bait is avoided, and a safe growth environment with sufficient feed is provided for small-sized juvenile fishes, thereby reducing the size disparity among juvenile fishes.

Description

Fry cultivation device and method thereof Technical Field

[0001] The present invention relates to the technical field of aquaculture, in particular to a fry cultivation device and a cultivation method thereof. Background Art

[0002] The cultivation of fry, from the selection of breeding fish to successful conception and then hatching to growth, requires managers to be serious and responsible, always pay attention to the growth of fry and changes in the environment, and provide timely response measures. Only when they are properly handled can they be successfully cultivated. The cultivation of fry mainly includes several steps such as fry selection, water fertilization, stocking, feeding, and fry training. Among them, the feeding method is very important during the fry cultivation period. The current feeding method is generally artificial feeding. Artificial feeding is difficult to achieve regular feeding, and the bait is not evenly spread, which can easily lead to uneven feeding of fish. The fry gather to feed, resulting in some fry eating less, affecting their development, resulting in differences in body size, uneven growth, and even large fry eating small fry. Even if the feed is spread very evenly, it is still inevitable that some fry cannot grab food and their body development is delayed.

[0003] Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned technical problems and provide a fish fry cultivation device and a cultivation method thereof. The feeder can feed the cultivation pond in a timely and quantitative manner. The swinging and translational movements of the feeder are coordinated to avoid the inconvenience of foraging caused by the concentration of bait. The isolation holes and fish gates of the partition plate, in conjunction with the fish attractor, can separate small-sized fish from large-sized fish, provide a safe and feed-sufficient growth environment for small-sized fish, promote the growth of small-sized fish, and reduce the size differences between individual fish fry.

[0005] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention discloses a fry cultivation device, comprising a cultivation box, a visual recognition device, a translation mechanism, and a feeder capable of being started at a fixed time; a cultivation pool is provided in the cultivation box, and the cultivation pool is divided into three horizontally arranged feeding areas by a partition plate, and the partition plate is provided with an isolation hole and a fish gate that can be opened and closed, and the isolation hole and the fish gate both connect two adjacent feeding areas, the aperture of the isolation hole matches the size of a preset large-sized fry, and the feeding areas on both sides are provided with fish attractors that can be opened and closed; The feeder can be translated above the incubator through a translation mechanism, the translation direction of the feeder is perpendicular to the arrangement direction of the feeding area, and the feeder can swing back and forth along the arrangement direction of the feeding area to feed; the visual recognition device includes a visual module for monitoring the feeding area and a control module capable of receiving monitoring signals. When the visual module detects that there are fry that have grown to the preset large size in the middle feeding area, the fish gate and the fish attractor are opened, and when there are no fry in the middle feeding area, the fish gate and the fish attractor are closed.

[0006] Preferably, the translation mechanism includes a support frame installed on the incubator, a horizontal slide rail is provided on the support frame, the extension direction of the horizontal slide rail is perpendicular to the arrangement direction of the feeding area, the feeder is slidably connected to the horizontal slide rail through a sliding block, and the sliding block moves along the horizontal slide rail through a driving assembly.

[0007] Preferably, the driving assembly includes a driving motor and a threaded rod rotatably connected to the support frame, the axis of the threaded rod is in the same direction as the extension direction of the horizontal slide rail, the sliding block is threadedly connected to the threaded rod, and the output shaft of the driving motor is coaxially fixedly connected to the threaded rod.

[0008] Preferably, the feeder includes a feeding box and a telescopic cylinder, the top of the feeding box is hinged on the sliding block, the bottom of the feeding box is provided with a feeding port, the feeding port is provided with a discharge valve, the cylinder body of the telescopic cylinder is hinged to the sliding block, the piston rod of the telescopic cylinder is hinged to the feeding box, a timer is installed on the feeding box, and the timer is electrically connected to the telescopic cylinder and the drive motor.

[0009] Preferably, an aerator is provided in the cultivation pond.

[0010] Preferably, the incubation box is provided with an inlet pipe and a drain pipe connected to the incubation pool, the water inlet end of the drain pipe and the water outlet end of the water inlet pipe are provided with a protective net, and the water outlet end of the drain pipe and the water inlet end of the water inlet pipe are provided with an opening and closing valve.

[0011] Preferably, a plurality of the cultivation pools are provided in the cultivation box, and the plurality of the cultivation pools are arranged along the extension direction of the horizontal slide rail. The control module is electrically connected to the timer, the telescopic cylinder and the drive motor.

[0012] Also disclosed is a fry cultivation method, which adopts the above-mentioned fry cultivation device and includes the following steps: feeding: a feeder feeds bait in three feeding areas of a cultivation pond at a regular and quantitative manner; when a visual module recognizes that the fry in the central feeding area have grown to a preset large-sized fry size, a control module controls a fish gate and a fish attractor to open, and the fry are attracted by the fish attractor to pass through the fish gate and enter the feeding areas on both sides; when the visual module recognizes that there are no fry in the central feeding area, the fish gate and the fish attractor are closed, and fry smaller than the preset large-sized fry can swim back to the central feeding area through the isolation hole.

[0013] Preferably, before the feeding step, it also includes oxygenation and water fertilization: introducing unpolluted well water or pond water into the cultivation pond, oxygenating the water in the cultivation pond by an aerator, adding nutrient solution / water conditioning product into the water in the cultivation pond, and stocking the fry into the water in the cultivation pond.

[0014] Preferably, after the feeding step, the method further comprises changing water: regularly changing the water in the cultivation pond.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The present invention can feed fish at regular intervals and in fixed quantities through the feeder. The feeder swings and cooperates with the translation mechanism, and the feeding range can cover the entire culture pond, thereby preventing the bait from being too concentrated, which makes it inconvenient for the fry to find food. At the same time, the visual recognition device is arranged to control the opening and closing of the fish gate and the fish attractor, so that large-sized fish can be retained in the breeding areas on both sides, while the small-sized fish swim back to the breeding area in the middle, and the two are isolated, so as to ensure that the small-sized fish have a safer living space with more sufficient feed, avoid the small-sized fish from being bitten by the large-sized fish, promote the growth of the small-sized fry, catch up with the growth level of the large-sized fry as soon as possible, and reduce the size difference between the individual fry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] FIG1 is a schematic diagram of the three-dimensional structure of a fry cultivation device;

[0019] FIG2 is a schematic diagram of the three-dimensional structure of the incubator;

[0020] FIG3 is a schematic diagram of the structure of the incubator from above;

[0021] FIG4 is a schematic diagram of the three-dimensional structure of the translation mechanism;

[0022] FIG5 is a partial enlarged view of FIG4;

[0023] FIG6 is a schematic diagram of the three-dimensional structure of the feeder;

[0024] FIG7 is a schematic structural diagram of a partition plate.

[0025] Explanation of the accompanying symbols: 1. Breeding box; 2. Breeding pool; 3. Visual recognition device; 4. Aerator; 5. Fish attractor; 6. Water inlet pipe; 7. Drain pipe; 8. Opening and closing valve; 9. Partition plate; 10. Fish gate; 11. Isolation hole; 12. Support frame; 13. Support column; 14. Support seat; 15. Horizontal slide rail; 16. Sliding block; 17. Drive motor; 18. Threaded rod; 19. Feeding box; 20. Telescopic cylinder; 21. Feeding port; 22. Track groove; 23. Guide plate; 24. Rotating seat; 25. Articulated ear plate; 26. Closing plug; 27. Telescopic rod; 28. Sliding part; 29. ​​Connecting rod; 30. Opening and closing plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] This embodiment provides a fry cultivation device, as shown in Figures 1 to 7, including a cultivation box 1, a visual recognition device 3, a translation mechanism and a feeder.

[0029] A breeding tank 2 is provided in the breeding box 1, and two partition plates 9 are provided in the breeding tank 2, dividing the breeding tank 2 into three horizontally arranged feeding areas. A fish gate 10 and an isolation hole 11 are provided on the partition plate 9. The two adjacent feeding areas are connected through the isolation hole 11 and the fish gate 10, and the fish gate 10 can be opened and closed. The aperture of the isolation hole 11 matches the size of the preset large-sized fry, so that fry larger than the preset large-sized fry cannot pass through the isolation hole 11, but fry smaller than the preset large-sized fry can pass through the isolation hole 11. The feeding areas on both sides are provided with fish attractors 5 that can be opened and closed. The fish attractor 5 can attract the fry to gather around, such as a product with an attractant.

[0030] The feeder can be activated at a fixed time and can be translated above the incubator 1 via a translation mechanism. The translation direction of the feeder is perpendicular to the arrangement direction of the feeding zones, and the feeder can swing back and forth along the arrangement direction of the feeding zones to feed the fish. In other words, if the feeding zones are arranged along the length of the incubator 2, the feeder can be moved along the width of the incubator 2 via the translation mechanism, so that the feeding range can cover the width of the incubator 2. When feeding, the feeder swings back and forth along the length of the incubator 2, so that the feeding range can cover the length of the incubator 2, ensuring that all three feeding zones are fed.

[0031] The visual recognition device 3 includes a visual module and a control module. The visual module is used to monitor the fry in the feeding area, while the control module is capable of receiving monitoring signals from the visual module. When the visual module detects that fry have grown to a predetermined large size in the central feeding area, the control module opens the fish gate 10 and the fish attractor 5. The fish attractor 5 attracts the fry from the central feeding area through the fish gate 10 and enters the feeding areas on both sides. When the visual module detects that there are no fry in the central feeding area, the fish gate 10 and the fish attractor 5 are closed.

[0032] Working principle:

[0033] After the start time of the feeder is set, it will start swing feeding at the preset time. At this time, the translation mechanism will automatically control the feeder to translate along the culture tank 2 to ensure that the three culture areas are all covered with bait. Because the feeder is a reciprocating swing feeding, the bait in the middle feeding area may actually be more than the bait in the culture areas on both sides. Therefore, the fry will tend to concentrate in the culture area in the middle. Therefore, the fry in the middle culture area will grow faster. When the visual module finds that the fry in the middle culture area exceeds the preset large fry size, the control module will open the fish gate 10 and the fish attractor 5. Under the sound absorption of fish attractor 5, all fry can all enter the feeding area on both sides by middle part through fish gate 10, after closing fish gate 10 and fish attractor 5 then, when spreading again because of the bait in middle part is more, fry can more tend to swim into the middle feeding area, but under the blocking of isolation hole 11, only the smaller fish of body size can swim into the middle feeding area, when fry body size appears again in the middle feeding area again and surpasses the preset large fry body size, open fish gate 10 and fish attractor 5 again, repeat above-mentioned steps, to reduce growth difference as far as possible, avoid large-scale fish to eat small-scale fish simultaneously.The one reason that the bait in middle feeding area is more is that the feeder swing mode causes, and the 2nd, both sides feeding area fry are more under the initial state, and the fish in both sides feeding area can soon diminish, and makes that feeding area bait is relatively more at noon.

[0034] Furthermore, in this embodiment, as shown in Figures 1 to 7, the lengths of the three culture areas along the arrangement direction can be all the same, or the lengths of the feeding areas on both sides along the arrangement direction can be the same, and the length of the feeding area in the middle along the arrangement direction is smaller than the feeding areas on both sides, so as to reduce the activity space of the fry in the middle, forcing the fry to stay more in the feeding areas on both sides, and avoid the fry being concentrated in the middle feeding area due to more feed in the middle, resulting in insufficient fry in the feeding areas on both sides.

[0035] In this embodiment, as shown in Figures 1 to 7, the translation mechanism includes a support frame 12, which is mounted on the incubator 1. A horizontal slide rail 15 is provided on the support frame 12. The horizontal slide rail 15 is located above the incubator 1. The extension direction of the horizontal slide rail 15 is perpendicular to the arrangement direction of the feeding area. The feeder is slidably connected to the horizontal slide rail 15 through a sliding block 16, and the sliding block 16 moves along the horizontal slide rail 15 through a driving assembly.

[0036] Furthermore, in this embodiment, as shown in Figures 1 to 7, the support frame 12 is provided with two support columns 13 at both ends along the extension direction of the horizontal slide rail 15, and the incubator 1 is provided with two support seats 14 at both ends perpendicular to the arrangement direction of the feeding area. Each support seat 14 is provided with a vertically arranged plug-in blind hole, and the support column 13 is plugged into the corresponding plug-in blind hole of the support seat 14 to support the support frame 12 above the incubator 1.

[0037] Furthermore, in this embodiment, as shown in Figures 1 to 7, the drive assembly includes a drive motor 17 and a threaded rod 18. The drive motor 17 is mounted on the support frame 12, and the threaded rod 18 is rotatably connected to the support frame 12. The axis of the threaded rod 18 is in the same direction as the extension direction of the horizontal slide rail 15. The output shaft of the drive motor 17 is coaxially fixedly connected to the threaded rod 18, and the sliding block 16 is threadedly connected to the threaded rod 18. When the drive motor 17 is started, its output shaft drives the threaded rod 18 to rotate. Because the sliding block 16 is slidably connected to the horizontal slide rail 15, the sliding block 16 is limited by the horizontal slide rail 15, so that the sliding block 16 only moves along the extension direction of the horizontal slide rail 15 and does not rotate with the threaded rod 18. Preferably, both ends of the threaded rod 18 are rotatably connected to the support frame 12 via bearings. The sliding block 16 and the horizontal slide rail 15 can slide in the following manner: the horizontal slide rail 15 is provided with two track grooves 22, the extension direction of the track grooves 22 being the same as that of the horizontal slide rail 15; the sliding block 16 is provided with two guide plates 23, the two guide plates 23 being respectively inserted into the two track grooves 22. Of course, this is only one preferred sliding manner for the sliding block 16 and the horizontal slide rail 15, and does not mean that other sliding manners cannot be adopted, such as providing a track groove 22 on the horizontal slide rail 15, providing a T-shaped slider on the sliding block 16, the web portion of the T-shaped slider extending into the track groove 22, and the flange portion of the T-shaped slider being located above the track groove 22; and providing a sliding sleeve on the sliding block 16, which is sleeved on the horizontal slide rail 15, etc.

[0038] In addition, the driving assembly can also adopt other driving methods, such as a telescopic mechanism, the fixed end of the telescopic mechanism is installed on the support frame 12, and the sliding end of the telescopic mechanism is fixedly connected to the sliding block 16. The telescopic mechanism is such as a scissor-type linkage mechanism.

[0039] In this embodiment, as shown in Figures 1 to 7, the feeder includes a feed box 19 and a telescopic cylinder 20. The top of the feed box 19 is hinged to the bottom of the sliding block 16. A feed port 21 is provided at the bottom of the feed box 19. A discharge valve is provided at the feed port 21 to control the opening and closing of the feed port 21. The cylinder body of the telescopic cylinder 20 is hinged to the sliding block 16, and the piston rod of the telescopic cylinder 20 is hinged to the feed box 19. The telescopic cylinder 20 can be a hydraulic cylinder, an electric cylinder or a pneumatic cylinder, preferably an electric cylinder. The piston rod of the telescopic cylinder 20 extends and shortens, which can push the feed box 19 to swing back and forth along the arrangement direction of the three feeding areas. Preferably, a rotating seat 24 is provided on the feed box 19, and a hinged ear plate 25 is installed at the bottom of the sliding block 16. The rotating seat 24 and the hinged ear plate 25 are connected by a hinge shaft, and the axis direction of the hinge shaft is perpendicular to the arrangement direction of the feeding areas. The cylinder body of the telescopic cylinder 20 is hinged to the bottom of the sliding block 16 via another hinged lug 25. The piston rod of the telescopic cylinder 20 is also hinged to the feeding box 19 via a hinged lug 25. A timer is mounted on the feeding box 19 and is electrically connected to the telescopic cylinder 20 and the drive motor 17 to control the activation of the telescopic cylinder 20 and the drive motor 17.

[0040] Furthermore, in this embodiment, as shown in Figures 1 to 7, the feeding box 19 is a conical box, with the large end of the conical box facing upward and hingedly connected to the sliding block 16. The small end of the feeding box 19 faces downward and is provided with a feeding pipe, which is provided with a feeding port 21. A feeding port is provided on the side wall of the large end of the conical box, and the feeding port is plugged with a sealing plug 26. The sealing plug 26 can be removed to add materials.

[0041] In this embodiment, as shown in Figures 1 to 7 , an aerator 4 is installed within the culture tank 2 to oxygenate the water within the culture tank 2 and meet the oxygen consumption requirements of the fry. Aerator 4 can be an aeration ring installed at the bottom of the culture tank 2. Of course, this does not mean that other oxygenation devices cannot be used as aerator 4.

[0042] In this embodiment, as shown in Figures 1 to 7, a water inlet pipe 6 and a drain pipe 7 are provided on the incubation box 1. The water inlet pipe 6 and the drain pipe 7 are connected to the incubation tank 2. A protective net is provided at the outlet end of the water inlet pipe 6 and the inlet end of the drain pipe 7. The inlet end of the water inlet pipe 6 and the outlet end of the drain pipe 7 are provided with an on-off valve 8. The on-off valve 8 controls the opening and closing of the water inlet pipe 6 and the drain pipe 7. Cultivation water can be introduced into the incubation tank 2 through the water inlet pipe 6, and the water in the incubation tank 2 can be discharged through the drain pipe 7, thereby achieving regular water changes. When changing water, water is continuously added through the water inlet pipe 6 and continuously discharged through the drain pipe 7. The water inflow and discharge are dynamically balanced, and the water change can be completed without removing the fry. The protective net can intercept the fry and prevent them from swimming out through the water inlet pipe 6 and the drain pipe 7.

[0043] Furthermore, in this embodiment, as shown in Figures 1 to 7, the opening and closing valves 8 of the water inlet pipe 6 and the drain pipe 7 can be solenoid valves, which are then electrically connected to the control module. The control module regularly opens and closes the opening and closing valves 8 to perform regular water changes.

[0044] Furthermore, in this embodiment, as shown in Figures 1 to 7, the water inlet end of the water inlet pipe 6 is connected to uncontaminated well water or pond water, and the water outlet end of the drain pipe 7 is connected to the pond or wastewater collection device. A filtering device and a disinfecting device are provided at the water inlet end of the water inlet pipe 6, and a filtering device and a disinfecting device are provided at the water outlet end of the drain pipe 7. The disinfecting device can be an ultraviolet disinfecting device or other disinfecting device.

[0045] In this embodiment, as shown in Figures 1 to 7, a plurality of incubation tanks 2 are provided within an incubation box 1. These incubation tanks 2 are arranged along the extension of a horizontal slide rail 15, allowing for the simultaneous incubation of multiple batches of the same fry, as well as the simultaneous incubation of different fry. A control module is electrically connected to the timer, the telescopic cylinder 20, and the drive motor 17. The timer transmits activation information to the control module, which then uniformly controls the activation of the telescopic cylinder 20 and the drive motor 17. In conjunction with the vision module, the control module controls the rotation of the drive motor 17, allowing the feeding box 19 to feed the corresponding different incubation tanks 2.

[0046] Furthermore, in this embodiment, as shown in Figures 1 to 7, the cultivation pool 2 can be a rectangular pool, the incubator 1 is a rectangular box, the cultivation pool 2 is arranged along the length direction of the incubator 1, the length direction of the cultivation pool 2 is perpendicular to the length direction of the incubator 1, the width direction of the cultivation pool 2 is parallel to the width direction of the incubator 1, and the extension direction of the horizontal slide rail 15 is parallel to the width direction of the cultivation pool 2.

[0047] In this embodiment, as shown in Figures 1 to 7 , a telescopic rod 27 is provided on the incubator 1. The fixed end of the telescopic rod 27 is fixed to the incubator 1. A sliding member 28 is connected to the telescopic end of the telescopic rod 27. The sliding member 28 is slidably connected to the partition plate 9. A connecting rod 29 is fixedly connected to the sliding member 28. The connecting rod 29 is provided with an opening and closing plate 30. The telescopic rod 27 extends and contracts in the same direction as the horizontal rail 15, driving the sliding member 28 to slide on the partition plate 9. This in turn drives the opening and closing plate 30 on the connecting rod 29 to move. The opening and closing plate 30, in its path of movement, blocks the fish gate 10, thereby enabling the fish gate 10 to be opened and closed. When the opening and closing plate 30 moves away from the fish gate 10, the fish gate 10 is opened. When the opening and closing plate 30 moves closer to the fish gate 10, the fish gate 10 is gradually closed. The telescopic rod 27 can be an electric, pneumatic, or hydraulic telescopic rod. The telescopic rod 27 is electrically connected to the control module to achieve movement control of the opening and closing plate 30.

[0048] In this embodiment, as shown in Figures 1 to 7, the visual recognition device 3 can be equipped with a remote signal transmission module to transmit the signal of the visual module to the backend for remote monitoring by backend personnel. The visual module can be a high-definition camera, which may or may not have a night vision function. The control module can be a single-chip microcomputer or a PLC controller. The remote signal transmission module can use network transmission or wireless transmission, etc. The backend includes but is not limited to the central console in the control room, an app or official account installed on a mobile phone, a webpage, etc.

[0049] Example 2

[0050] This embodiment provides a method for raising fry, which uses the fry raising device in Example 1, as shown in Figures 1 to 7, and includes the following steps:

[0051] Feeding: The feeder feeds the three feeding areas of the cultivation pond 2 at regular intervals and in fixed quantities. When the visual module recognizes that the fry in the feeding area in the middle have grown to the preset large size (due to the swinging of the feeder, the feed in the middle feeding area will be more than the feed in the feeding areas on both sides, so the growth rate of the fry in the middle will be higher than that of the fry in the feeding areas on both sides, so the growth status of the fry in the middle feeding area can be observed first), the control module controls the fish gate 10 and the fish attractor 5 to open, and the fry are attracted by the fish attractor 5 through the fish gate 10 to enter the feeding areas on both sides. In the area, when the visual module recognizes that there are no fry in the feeding area in the middle, the fish gate 10 and the fish attractor 5 are closed, and the fry that are smaller than the preset large-sized fry can swim back to the feeding area in the middle through the isolation hole 11, and the fry that are larger than the preset large-sized fry will stay in the feeding areas on both sides, and then the large-sized fish and the small-sized fish are separated. Because there is more bait in the middle, the fry in the middle will quickly catch up with the fry on both sides. At the same time, separation can also prevent the large-sized fry from biting the small fry. After performing the above operation several times, the growth difference of the fry can be guaranteed to be reduced.

[0052] Furthermore, in this embodiment, as shown in Figures 1 to 7, the following steps are included: before the feeding step, it also includes oxygenation and water fertilization: unpolluted well water or pond water is introduced into the breeding pond 2, and the water body in the breeding pond 2 is oxygenated by the aerator 4 to meet the oxygen consumption demand of the fry, and then nutrient solution / water conditioning products are added to the water body of the breeding pond 2, and the fry are released into the water body of the breeding pond 2 for breeding.

[0053] Furthermore, in this embodiment, as shown in FIG. 1 to FIG. 7 , after the feeding step, water change is also included: the water in the cultivation pond 2 is changed regularly.

[0054] In this embodiment, as shown in Figures 1 to 7, the complete cultivation process is as follows:

[0055] S1, fry selection: select healthy fry for standby use, and can choose to have a fry cultivation device with a cultivation pond 2, and can also choose to have a fry cultivation device with multiple cultivation ponds 2;

[0056] S2. Oxygenation and water fertilization: unpolluted and safe well water or pond water is introduced into the culture tank 2 and oxygenated by the aerator 4 to meet the oxygen consumption demand of the fry. Then, a nutrient solution / water conditioning product is sprayed into the water body of the culture tank 2 to fertilize the water and meet the nutritional needs of the fry. The nutrients in the nutrient solution / water conditioning product can be crushed egg yolk, mayfly insects, etc.;

[0057] S3, stocking: Before stocking, test the water temperature and pH value in the cultivation pond 2, test the temperature difference of the water, and ensure that the temperature difference is within 2°C. The temperature can be adjusted by spraying water so that the fry gradually adapt to the environment in the cultivation pond 2;

[0058] S4, feeding: the feeder cooperates with the translation mechanism to feed the three feeding areas in a timely and quantitative manner. When the visual module recognizes that the body circumference of the fry in the middle feeding area has grown to the preset large-sized fry size, the control module controls the fish gate 10 and the fish attractor 5 to open, and the fry are attracted by the fish attractor 5 through the fish gate 10 and enter the feeding areas on both sides. When the visual module recognizes that there are no fry in the middle feeding area, the fish gate 10 and the fish attractor 5 are closed, and the fry smaller than the preset large-sized fry size can swim back to the feeding area in the middle through the isolation hole 11, and the fry larger than the preset large-sized fry size will remain in the feeding areas on both sides, and then the large-sized fish and the small-sized fish are separated. Because there is more bait in the middle, the middle fry will quickly catch up with the fry on both sides. At the same time, separation can also prevent the large-sized fry from biting the small fry. After performing the above operation several times, the growth difference of the fry can be guaranteed to be reduced.

[0059] S5, water change: through the water inlet pipe 6 and the drain pipe 7, regular water change is carried out to ensure the growth environment of the fry. During actual use, the opening and closing valves 8 of the water inlet pipe 6 and the opening and closing valves 8 of the drain pipe 7 are opened. When the water in the cultivation pond 2 is changed, the valves are opened to replace the water body.

[0060] S6. Monitoring: Regularly monitor and observe the growth of the fry and keep records.

[0061] In this embodiment, as shown in FIG. 1 to FIG. 7 , monitoring can be performed manually on a regular basis, or remotely through the visual recognition device 3 .

[0062] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A fry cultivation device, characterized in that: The invention comprises a breeding box, a visual recognition device, a translation mechanism, and a feeder capable of being activated at a fixed time. The breeding box is provided with a breeding pool, which is divided into three horizontally arranged feeding areas by a partition plate. The partition plate is provided with an isolation hole and a fish gate that can be opened and closed. The isolation hole and the fish gate both connect two adjacent feeding areas. The aperture of the isolation hole matches the size of a preset large-sized fry. The feeding areas on both sides are provided with openable and closable fish attractors. The feeder can be translated above the breeding box by the translation mechanism. The translation direction of the feeder is perpendicular to the arrangement direction of the feeding areas. The feeder can swing back and forth along the arrangement direction of the feeding areas to feed. The visual recognition device includes a visual module for monitoring the feeding areas and a control module capable of receiving monitoring signals. When the visual module detects that fry have grown to the size of the preset large-sized fry in the middle feeding area, the fish gate and the fish attractor are opened. When no fry are in the middle feeding area, the fish gate and the fish attractor are closed.

2. A fry cultivation device according to claim 1, characterized in that: The translation mechanism includes a support frame installed on the incubator, and a horizontal slide rail is provided on the support frame. The extension direction of the horizontal slide rail is perpendicular to the arrangement direction of the feeding area. The feeder is slidably connected to the horizontal slide rail through a sliding block, and the sliding block moves along the horizontal slide rail through a driving assembly.

3. A fry cultivation device according to claim 2, characterized in that: The driving assembly includes a driving motor and a threaded rod rotatably connected to the support frame, the axis of the threaded rod is in the same direction as the extension direction of the horizontal slide rail, the sliding block is threadedly connected to the threaded rod, and the output shaft of the driving motor is coaxially fixedly connected to the threaded rod.

4. A fry cultivation device according to claim 3, characterized in that: The feeder includes a feeding box and a telescopic cylinder. The top of the feeding box is hinged on the sliding block. The bottom of the feeding box is provided with a feeding port. The feeding port is provided with a discharge valve. The cylinder body of the telescopic cylinder is hinged to the sliding block. The piston rod of the telescopic cylinder is hinged to the feeding box. A timer is installed on the feeding box. The timer is electrically connected to the telescopic cylinder and the drive motor.

5. A fry cultivation device according to claim 1, characterized in that: An aerator is provided in the cultivation pond.

6. A fry cultivation device according to claim 1, characterized in that: The incubation box is provided with an inlet pipe and a drain pipe connected to the incubation pool, the water inlet end of the drain pipe and the water outlet end of the water inlet pipe are provided with a protective net, and the water outlet end of the drain pipe and the water inlet end of the water inlet pipe are provided with an opening and closing valve.

7. A fry cultivation device according to claim 4, characterized in that: A plurality of the cultivation pools are provided in the cultivation box and are arranged along the extension direction of the horizontal slide rail. The control module is electrically connected to the timer, the telescopic cylinder and the drive motor.

8. A method for raising fry, using the fry raising device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Feeding: The feeder feeds the three feeding areas of the breeding pond at a regular and quantitative rate. When the visual module recognizes that the fry in the feeding area in the middle have grown to the preset large size, the control module controls the fish gate and the fish attractor to open. The fry are attracted by the fish attractor through the fish gate and enter the feeding areas on both sides. When the visual module recognizes that there are no fry in the feeding area in the middle, the fish gate and the fish attractor are closed. Fry that are smaller than the preset large size can swim back to the feeding area in the middle through the isolation hole.

9. A fry cultivation method according to claim 8, characterized in that, Before the feeding step, it also includes oxygenation and water fertilization: introducing unpolluted well water or pond water into the cultivation pond, oxygenating the water in the cultivation pond through an aerator, adding nutrient solution / water conditioning products into the water in the cultivation pond, and releasing fry into the water in the cultivation pond.

10. A fry cultivation method according to claim 9, characterized in that: After the feeding step, the step also includes changing the water: regularly changing the water in the cultivation pond.

Images