Leiocassis longirostris artificial induced spawning photoperiod regulation and control device and method

Abstract

The invention relates to the technical field of Leiocassis longirostris breeding, and discloses a Leiocassis longirostris artificial induced spawning photoperiod regulation and control device and method.The Leiocassis longirostris artificial induced spawning photoperiod regulation and control device comprises a water tank, a bottom plate fixed to the bottom side of the water tank and mounting plates fixed to the two ends of the bottom plate, a push plate is slidably connected to the interior of the water tank, a plurality of sliding connection grooves are formed in the push plate, and connecting rods are slidably arranged in the sliding connection grooves in a penetrating mode; the connecting rods are provided with threaded grooves, connecting rods are arranged in the two ends of the threaded grooves in a threaded penetrating mode, loading blocks sliding in the water tank are arranged on the two sides of the push plate, and a plurality of connecting grooves corresponding to the connecting rods are formed in the sides, close to the push plate, of the loading blocks. According to the Leiocassis longirostris breeding device, Leiocassis longirostris needing spawning induction can be bred, illumination can be provided for bred Leiocassis longirostris, the irradiation light source can be turned on and turned off according to spawning induction requirements, the corresponding position of the light source can be regulated and controlled, workers can conveniently inject spawning induction medicine to the Leiocassis longirostris needing spawning induction, the time for picking up the Leiocassis longirostris by the workers is shortened, and the working efficiency is improved. Time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of long-snouted catfish breeding, in particular to a device and method for controlling the light cycle of artificially induced spawning of long-snouted catfish. Background Art

[0002] Longnose catfish is a valuable freshwater fish in my country. Its tender, nutritious meat makes it highly valuable for aquaculture. Artificially inducing spawning in longnose catfish can increase its aquaculture scale and address its low reproductive efficiency in natural environments, thereby achieving stable development of the longnose catfish industry.

[0003] The light cycle has a great impact on the reproductive activities of the long-snouted catfish. Appropriate light can stimulate its gonadal development and promote spawning. Therefore, during the artificial induction of spawning in the long-snouted catfish, the light cycle needs to be regulated. The existing light cycle regulation methods mostly directly turn on and off the irradiation light source. Although this regulation method can regulate the light cycle, it is not possible to adjust the corresponding position of the light source according to the breeding needs during the application process, which is inconvenient to use. For this reason, we proposed a light cycle regulation device and method for artificial induction of spawning in the long-snouted catfish. Summary of the Invention

[0004] In order to solve the technical problem that the light source is difficult to regulate during the artificial induction of labor in long-snouted catfish, the present invention provides a light cycle regulation device and method for artificial induction of labor in long-snouted catfish.

[0005] The present invention is implemented by the following technical scheme: a light cycle control device for artificial induction of labor of long-snouted catfish comprises a water tank, a bottom plate fixed to the bottom side of the water tank and mounting plates fixed at both ends of the bottom plate, a push plate is slidably connected to the inside of the water tank, the push plate is provided with a plurality of sliding grooves, a connecting rod is slidably penetrated inside the sliding groove, the connecting rod is provided with a threaded groove, and connecting rods are penetrated by the internal threads at both ends of the threaded groove, loading blocks are provided on both sides of the push plate for sliding inside the water tank, a plurality of connecting grooves corresponding to the connecting rods are provided on the side of the loading block close to the push plate, and the end of the connecting rod away from the connecting rod slides inside the adjacent connecting groove, a light board is provided above the water tank, a plurality of fluorescent lamps are fixed on the side of the light board close to the water tank, and light boards are provided on both sides of the top side of the water tank between the two mounting plates. The two ends of the two shading plates are fixed with sliding shafts, and a slide groove is provided on the side of the mounting plate close to the water tank. The slide shaft slides inside the adjacent slide groove. Through the operation of the above components, the long-snouted catfish that needs to be induced to give birth can be raised, and light can be provided for the long-snouted catfish cultured in the water tank. It is convenient for the staff to pick up the long-snouted catfish on the connecting rod, so as to inject induced labor drugs into the long-snouted catfish, and the long-snouted catfish on the connecting rod can be forced to gather in one place to avoid the long-snouted catfish on the connecting rod from being scattered everywhere, so as to facilitate the staff to pick up the long-snouted catfish on the connecting rod. It is convenient for the staff to adjust the spacing between multiple connecting rods, so as to facilitate the staff to screen long-snouted catfish of different sizes, the spacing between the fluorescent lamp and the water tank can be adjusted, and the water tank can be shaded.

[0006] As a further improvement of the above solution, the sunshade is located between the fluorescent lamp and the water tank, and the height of the water tank is greater than the width of the sunshade. The sunshade in the vertical state can be stored by the water tank whose height is greater than the width of the sunshade.

[0007] As a further improvement of the above scheme, the top of the push plate is embedded with a threaded sleeve, the internal thread of the threaded sleeve is penetrated by a screw rod, one end of the screw rod is rotatably connected to the inner wall of the water tank, and the other end of the screw rod passes through the outside of the water tank and is transmission-connected to a motor, the outer walls of both ends of the screw rod are fixed with a connecting rope, the end of the connecting rope away from the screw rod is fixed to the top side of the adjacent loading block, the side of the light panel away from the water tank is provided with a transmission shaft, the external movable sleeves at both ends of the transmission shaft are provided with a transmission frame, the interior of the transmission frame is provided with a half gear fixedly sleeved on the outer wall of the transmission shaft, and the inner walls on both sides of the transmission frame are fixed with a plurality of gears connected to the half gears The meshing teeth, the bottom of the transmission frame is fixed with a fixed rod whose other end is fixed to the light board. The operation of the motor can drive the screw rod to rotate, and the rotation of the screw rod can reel in the connecting rope, driving the loading block to move vertically upward. When the screw rod rotates, the threaded sleeve and the push plate can be driven to move by the cooperation of the screw rod and the threaded sleeve. The rotation of the transmission shaft can drive the half gear to rotate, and the cooperation of the half gear and the meshing teeth can drive the transmission frame to move back and forth vertically, drive the fixed rod and the light board to move back and forth vertically, and drive the fluorescent lamp to move vertically. At this time, the corresponding position of the fluorescent lamp can be adjusted.

[0008] As a further improvement of the above solution, a transfer hole 1 is opened on the mounting plate close to the motor, and the screw rod is rotatably passed through the interior of the transfer hole 1. Through the transfer hole 1, the screw rod can be flexibly rotated.

[0009] As a further improvement of the above solution, a fixing plate is fixed to the outside of the motor, and multiple fixing plates are fixed to the side of the fixing plate close to the water tank. The end of the fixing plate away from the fixing plate is fixed to the adjacent mounting plate, and the motor can be fixed by the fixing plate.

[0010] As a further improvement of the above scheme, one end of the transmission shaft is rotatably connected to the mounting plate away from the fixing plate, and the other end of the transmission shaft is rotatably connected to the fixing plate. The outer walls of the screw rod and the transmission shaft are fixedly sleeved with a transmission wheel, and the outside of the transmission wheel is provided with a transmission belt that cooperates with the transmission wheel. The mounting plate close to the fixing plate is provided with a second adapter hole, and the transmission shaft is rotatably passed through the inside of the second adapter hole. When the screw rod rotates, the transmission shaft can be driven to rotate through the cooperation of the transmission wheel and the transmission belt.

[0011] As a further improvement of the above solution, the water tank is equipped with a drain pipe, and a butterfly valve is installed on the drain pipe. When the butterfly valve is opened, the water inside the water tank can be discharged through the drain pipe.

[0012] As a further improvement of the above solution, a guide groove is provided on the side of the mounting plate close to the lighting panel, and guide blocks are fixed at both ends of the lighting panel. The guide blocks slide inside the adjacent guide grooves. Through the cooperation of the guide blocks and the guide grooves, the displaced lighting panel can be guided to improve the stability of the lighting panel.

[0013] As a further improvement of the above solution, a guide hole is provided on the top of the push plate, and a guide rod fixed inside the water tank is slid through the inside of the guide hole. The guide rod is in contact with the connecting rope. The connecting rope can be guided by the guide rod to avoid the connecting rope from deflecting during the process of winding or releasing.

[0014] The method of using the light cycle control device for artificial induced spawning of long-snouted catfish comprises the following steps:

[0015] S1: Through the operation of fluorescent lamps, light can be provided for the long-snouted catfish cultured in the water tank;

[0016] S2: When it is necessary to inject induced labor drugs into the long-nosed catfish cultured in the water tank, the vertical displacement of the loading block drives the long-nosed catfish cultured in the water tank to move vertically. When the long-nosed catfish cultured in the water tank floats to the surface, the breeder can inject the long-nosed catfish with induced labor drugs;

[0017] S3: When it is necessary to shade the long-snouted catfish cultured in the water tank, pull the shade plate to drive the shade plate to flip over. When the shade plate is in a horizontal state, push the shade plate to drive the shade plate to move. When the shade plate closes the opening of the water tank, the water tank is shaded.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can be used to raise long-snouted catfish that need induced labor, can provide light for the cultured long-snouted catfish, can turn the irradiation light source on and off according to the need for induced labor, and can regulate the corresponding position of the light source, so that the staff can conveniently inject induced labor drugs into the long-snouted catfish that need induced labor, reduce the time for the staff to pick up the long-snouted catfish, and save time and effort.

[0020] 2. The present invention can store and fold the shielding component when providing light to the cultured long-snouted catfish, so as to prevent the shielding component from affecting the use of the device by the staff, and can facilitate the staff to screen long-snouted catfish of different sizes. The working performance is high, the device can be adaptively adjusted according to the use requirements, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a light cycle control device for artificial induced spawning of longnose catfish;

[0022] Figure 2This is a schematic diagram of a state where the water tank in the light cycle control device for artificial induced spawning of long-snouted catfish is blocked by a light shield;

[0023] Figure 3 This is a cross-sectional view of a light cycle control device for artificial induction of spawning in long-snouted catfish;

[0024] Figure 4 This is a schematic diagram of the fluorescent lamp in the photoperiod control device for artificial induced spawning of longnose catfish;

[0025] Figure 5 This is a schematic diagram of the transmission frame in the photoperiod control device for artificial induced spawning of long-snouted catfish;

[0026] Figure 6 for Figure 3 A schematic diagram of the structure enlarged in the middle;

[0027] Figure 7 for Figure 4 Schematic diagram of the structure enlarged at point B.

[0028] Description of main symbols:

[0029] 1. Water tank; 2. Bottom plate; 3. Mounting plate; 4. Push plate; 5. Sliding groove; 6. Connecting rod; 7. Connecting rod; 8. Loading block; 9. Sunshade; 10. Sliding shaft; 11. Sliding groove; 12. Light board; 13. Fluorescent lamp; 14. Threaded sleeve; 15. Screw; 16. Connecting rope; 17. Threaded groove; 18. Connecting groove; 19. Guide rod; 20. Transmission shaft; 21. Transmission frame; 22. Half gear; 23. Gear; 24. Motor; 25. Fixing plate; 26. Fixing plate; 27. Guide groove; 28. Guide block; 29. Fixing rod. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example 1:

[0032] Combine Figure 1 、 Figure 2 and Figure 3The light cycle control device for artificial induced labor of long-snouted catfish of this embodiment includes a water tank 1, a bottom plate 2 fixed to the bottom side of the water tank 1, and mounting plates 3 fixed at both ends of the bottom plate 2. A push plate 4 is slidably connected to the inside of the water tank 1. The push plate 4 has a plurality of sliding grooves 5. A connecting rod 6 is slidably passed through the inside of the sliding groove 5. The connecting rod 6 has a threaded groove 17. The internal threads at both ends of the threaded groove 17 are threaded with connecting rods 7. Loading blocks 8 that slide inside the water tank 1 are provided on both sides of the push plate 4. The loading block 8 is close to one side of the push plate 4. A plurality of connecting grooves 18 corresponding to the connecting rod 7 are opened on the side, and the end of the connecting rod 7 away from the connecting rod 6 slides inside the adjacent connecting groove 18. A light panel 12 is provided above the water tank 1, and a plurality of fluorescent lamps 13 are fixed on the side of the light panel 12 close to the water tank 1. Sunshades 9 located between the two mounting plates 3 are provided on both sides of the top side of the water tank 1, and sliding shafts 10 are fixed at both ends of the opposite ends of the two sunshades 9. A slide groove 11 is opened on the side of the mounting plate 3 close to the water tank 1, and the slide shaft 10 slides inside the adjacent slide groove 11.

[0033] The implementation principle of the light cycle control device and method for artificial induction of long-snouted catfish in the embodiment of the present application is as follows: the long-snouted catfish that need to be induced to produce can be raised through the water tank 1, and the operation of the fluorescent lamp 13 can provide light for the long-snouted catfish cultured in the water tank 1. When it is necessary to inject induction drugs for the long-snouted catfish cultured in the water tank 1, the vertical displacement of the loading block 8 can drive the connecting rod 7 to move, and as the connecting rod 7 moves upward vertically, the long-snouted catfish cultured in the water tank 1 can be lifted. The long snout catfish is displaced vertically upward. When the long snout catfish in the water tank 1 is out of the water, the staff can pick up the long snout catfish on the connecting rod 7, thereby injecting the oxytocin into the long snout catfish. The displacement of the push plate 4 can drive the long snout catfish on the connecting rod 7, thereby forcing the long snout catfish on the connecting rod 7 to gather in one place, avoiding the long snout catfish on the connecting rod 7 from being scattered everywhere, thereby making it convenient for the staff to pick up the long snout catfish on the connecting rod 7. The connecting rod 7 is rotated, and the long snout catfish on the connecting rod 7 and the thread are connected. The cooperation of the groove 17 drives the connecting rod 7 to move. When the end of the connecting rod 7 is out of the adjacent connecting groove 18, the connecting rod 7 can be quietly disassembled at this time, which makes it convenient for the staff to adjust the spacing between multiple connecting rods 7, thereby making it convenient for the staff to screen long-snouted catfish of different sizes. The vertical displacement of the light panel 12 can drive the fluorescent lamp 13 to move vertically. At this time, the spacing between the fluorescent lamp 13 and the water tank 1 can be adjusted. When it is necessary to shade the long-snouted catfish cultured in the water tank 1, the sunshade 9 is pulled, and the sunshade 9 is driven to flip over by the sliding cooperation of the slide shaft 10 and the slide groove 11. When the sunshade 9 is in a horizontal state, the sunshade 9 is pushed, and the sunshade 9 is driven to move by the sliding cooperation of the slide shaft 10 and the slide groove 11. When the sunshade 9 closes the opening of the water tank 9, the water tank 1 is shaded, and the long-snouted catfish cultured in the water tank 1 can be shaded at this time.

[0034] The shading plate 9 is located between the fluorescent lamp 13 and the water tank 1. The height of the water tank 1 is greater than the width of the shading plate 9. The water tank 1, which is greater than the width of the shading plate 9, can accommodate the shading plate 9 in a vertical state.

[0035] Example 2:

[0036] Combine Figure 4 、 Figure 5 and Figure 7 Based on Example 1, this embodiment has the following further improvements:

[0037] A threaded sleeve 14 is embedded in the top of the push plate 4. The internal thread of the threaded sleeve 14 is penetrated by a screw rod 15. One end of the screw rod 15 is rotatably connected to the inner wall of the water tank 1. The other end of the screw rod 15 penetrates the outside of the water tank 1 and is transmission-connected to a motor 24. The motor 24 is a forward and reverse stepping motor. The outer walls of both ends of the screw rod 15 are fixed with a connecting rope 16. The end of the connecting rope 16 away from the screw rod 15 is fixed to the top side of the adjacent loading block 8. A transmission shaft 20 is provided on the side of the light panel 12 away from the water tank 1. A transmission frame 21 is provided on the external movable sleeves at both ends of the transmission shaft 20. A half gear 22 fixedly sleeved on the outer wall of the transmission shaft 20 is provided inside the transmission frame 21. A plurality of meshing teeth 23 engaged with the half gear 22 are fixed on the inner walls on both sides of the transmission frame 21. A fixing rod 29 is fixed to the bottom of the transmission frame 21, and the other end of the fixing rod 29 is fixed to the light board 12. The operation of the motor 24 can drive the screw rod 15 to rotate. The rotation of the screw rod 15 can reel in the connecting rope 16, and drive the loading block 8 to move vertically upward. When the screw rod 15 rotates, the threaded sleeve 14 and the push plate 4 can be driven to move by the cooperation of the screw rod 15 and the threaded sleeve 14. The rotation of the transmission shaft 20 can drive the half gear 22 to rotate. The cooperation of the half gear 22 and the meshing teeth 23 can drive the transmission frame 21 to reciprocate vertical displacement, drive the fixing rod 29 and the light board 12 to reciprocate vertical displacement, and drive the fluorescent lamp 13 to move vertically. At this time, the corresponding position of the fluorescent lamp 13 can be adjusted.

[0038] A transfer hole 1 is provided on the mounting plate 3 near the motor 24 , and the screw rod 15 is rotatably passed through the interior of the transfer hole 1. The screw rod 15 can flexibly rotate through the transfer hole 1.

[0039] A fixing plate 25 is fixed to the outside of the motor 24, and multiple fixing plates 26 are fixed to the side of the fixing plate 25 close to the water tank 1. The end of the fixing plate 26 away from the fixing plate 25 is fixed to the adjacent mounting plate 3. The motor 24 can be fixed through the fixing plate 25.

[0040] One end of the transmission shaft 20 is rotatably connected to the mounting plate 3 away from the fixing plate 25, and the other end of the transmission shaft 20 is rotatably connected to the fixing plate 25. The outer walls of the screw rod 15 and the transmission shaft 20 are fixedly sleeved with a transmission wheel, and the outside of the transmission wheel is provided with a transmission belt that cooperates with the transmission wheel. The mounting plate 3 close to the fixing plate 25 is provided with a second adapter hole, and the transmission shaft 20 is rotatably passed through the inside of the second adapter hole. When the screw rod 15 rotates, the transmission shaft 20 can be driven to rotate through the cooperation of the transmission wheel and the transmission belt.

[0041] The water tank 1 is equipped with a drain pipe, and a butterfly valve is installed on the drain pipe. When the butterfly valve is opened, the water inside the water tank 1 can be discharged through the drain pipe.

[0042] Example 3:

[0043] Combine Figure 1 Based on Example 3, this embodiment has the following further improvements:

[0044] A guide groove 27 is provided on one side of the mounting plate 3 close to the lighting panel 12, and guide blocks 28 are fixed at both ends of the lighting panel 12. The guide blocks 28 slide inside the adjacent guide grooves 27. Through the cooperation between the guide blocks 28 and the guide grooves 27, the displaced lighting panel 12 can be guided to improve the stability of the lighting panel 12.

[0045] A guide hole is provided at the top of the push plate 4, and a guide rod 19 fixed inside the water tank 1 is slidably penetrated inside the guide hole. The guide rod 19 is in contact with the connecting rope 16. The connecting rope 16 can be guided by the guide rod 19 to prevent the connecting rope 16 from deflecting during the process of winding or releasing.

[0046] Example 4:

[0047] The method of using the light cycle control device for artificial induced spawning of long-snouted catfish comprises the following steps:

[0048] S1: Through the operation of the fluorescent lamp 13, light can be provided for the long-snouted catfish cultured in the water tank 1;

[0049] S2: When it is necessary to inject oxytocin into the long-nosed catfish cultured in the water tank 1, the long-nosed catfish cultured in the water tank 1 are driven to move vertically by the vertical displacement of the loading block 8. When the long-nosed catfish cultured in the water tank 1 floats to the surface, the breeder can inject oxytocin into the long-nosed catfish;

[0050] S3: When it is necessary to shade the long-snouted catfish cultured in the water tank 1, pull the shade plate 9 to drive the shade plate 9 to flip over. When the shade plate 9 is in a horizontal state, push the shade plate 9 to drive the shade plate 9 to move. When the shade plate 9 closes the opening of the water tank 1, the water tank 1 is shaded.

[0051] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A light cycle control device for artificial induced spawning of long-snouted catfish, comprising a water tank, a bottom plate fixed to the bottom side of the water tank, and mounting plates fixed to both ends of the bottom plate, characterized in that: The interior of the water tank is slidably connected to a push plate, and the push plate is provided with a plurality of sliding grooves, and a connecting rod is slidably penetrated inside the sliding groove, and the connecting rod is provided with a threaded groove, and the internal threads at both ends of the threaded groove are penetrated by a connecting rod, and loading blocks that slide inside the water tank are provided on both sides of the push plate, and the loading block is provided with a plurality of connecting grooves corresponding to the connecting rod on the side close to the push plate, and the connecting rod slides inside the adjacent connecting grooves. A light board is provided above the water tank, and a plurality of fluorescent lamps are fixed on the side of the light board close to the water tank. Sunshades located between the two mounting plates are provided on both sides of the top side of the water tank, and sliding shafts are fixed at both ends of the opposite ends of the two sunshades, and a sliding groove is provided on the side of the mounting plate close to the water tank, and the sliding shafts slide inside the adjacent sliding grooves.

2. The device for controlling artificial induced labor of longnose catfish according to claim 1, wherein: The shading plate is located between the fluorescent lamp and the water tank, and the height of the water tank is greater than the width of the shading plate.

3. The device for controlling artificial induced labor of longnose catfish according to claim 1, wherein: The top of the push plate is embedded with a threaded sleeve, and the internal thread of the threaded sleeve is penetrated by a screw rod, one end of the screw rod is rotatably connected to the inner wall of the water tank, and the other end of the screw rod passes through the outside of the water tank and is transmission-connected to a motor, and the outer walls at both ends of the screw rod are fixed with a connecting rope, and the end of the connecting rope away from the screw rod is fixed to the top side of the adjacent loading block, and the light board is provided with a transmission shaft on the side away from the water tank, and the external movable sleeves at both ends of the transmission shaft are provided with a transmission frame, and the interior of the transmission frame is provided with a half gear fixedly sleeved on the outer wall of the transmission shaft, and a plurality of meshing teeth engaged with the half gears are fixed on the inner walls on both sides of the transmission frame, and a fixing rod with the other end fixed to the light board is fixed on the bottom of the transmission frame.

4. The device for controlling artificial induced labor of longnose catfish according to claim 3, wherein: A first transfer hole is provided on the mounting plate close to the motor, and the screw rod is rotatably passed through the interior of the first transfer hole.

5. The device for controlling artificial induced labor of longnose catfish according to claim 3, wherein: A fixing plate is fixed on the outer side of the motor, a plurality of fixing plates are fixed on a side of the fixing plate close to the water tank, and an end of the fixing plate away from the fixing plate is fixed on an adjacent mounting plate.

6. The device for controlling artificial induced labor of longnose catfish according to claim 5, characterized in that: One end of the transmission shaft is rotatably connected to a mounting plate away from the fixing plate, and the other end of the transmission shaft is rotatably connected to the fixing plate. The outer walls of the screw rod and the transmission shaft are fixedly sleeved with a transmission wheel, and the outside of the transmission wheel is provided with a transmission belt that cooperates with the transmission wheel. The mounting plate (3) close to the fixing plate is provided with a second adapter hole, and the transmission shaft (20) is rotatably passed through the inside of the second adapter hole.

7. The device for controlling artificial induced labor of longnose catfish according to claim 1, wherein: The water tank is equipped with a drain pipe, and a butterfly valve is installed on the drain pipe.

8. The device for controlling artificial induced labor of longnose catfish according to claim 1, wherein: A guide groove is provided on one side of the mounting plate close to the lighting panel. Guide blocks are fixed at both ends of the lighting panel. The guide blocks slide in adjacent guide grooves.

9. The device for controlling artificial induced labor of longnose catfish according to claim 3, wherein: A guide hole is provided on the top of the push plate, and a guide rod fixed inside the water tank is slidably penetrated inside the guide hole, and the guide rod is in contact with the connecting rope.

10. A method for using the light cycle control device for artificial induction of spawning of longnose catfish as claimed in claim 1, comprising the following steps: S1: Through the operation of fluorescent lamps, light can be provided for the long-snouted catfish cultured in the water tank; S2: When it is necessary to inject induced labor drugs into the long-nosed catfish cultured in the water tank, the vertical displacement of the loading block drives the long-nosed catfish cultured in the water tank to move vertically. When the long-nosed catfish cultured in the water tank floats to the surface, the breeder can inject the long-nosed catfish with induced labor drugs; S3: When it is necessary to shade the long-snouted catfish cultured in the water tank, pull the shade plate to drive the shade plate to flip over. When the shade plate is in a horizontal state, push the shade plate to drive the shade plate to move. When the shade plate closes the opening of the water tank, the water tank is shaded.

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