A device for the full artificial propagation of fish

Abstract

The present application relates to the field of fish breeding, and particularly relates to a full artificial fish breeding device, which comprises an operating assembly, a temperature control assembly, a mixing assembly and a fish nest printer, the operating assembly is used for placing fish and artificially extruding spermatozoon and ovum, the temperature control assembly is fixed below the operating assembly and is used for controlling the temperature required by fish breeding, the mixing assembly is fixed on the operating assembly and the temperature control assembly and is used for fully mixing fish sperm and ovum, and the fish nest printer is arranged at a mixed liquid leading-out end of the mixing assembly. The present application is simple in operation, is saved under the optimal temperature condition in the operation process, effectively guarantees the activity of spermatozoon and ovum, is beneficial to standard operation, has lower technical requirements for the operator and is suitable for ordinary workers to operate, prevents the death of fish eggs due to oxygen deficiency, programs the fish insemination process, optimizes the operation process, protects fish from being hurt, and thus improves the fertilization rate and the fish fry production efficiency.

Description

Technical Field

[0001] This invention relates to the field of fish breeding technology, specifically to a fully artificial fish breeding device. Background Technology

[0002] In aquaculture, many fish species undergo artificial breeding to improve fry production efficiency. Artificial fish breeding includes semi-artificial and fully artificial breeding. Semi-artificial breeding involves injecting broodstock with oxytocin during the breeding season. Common oxytocin sources include human chorionic gonadotropin (HCG), domperidone (DOM), and luteinizing hormone-releasing hormone analogs (LHRH-A3). After injection, both male and female broodstock are placed in the same pond. If the eggs are adhesive, nests such as palm flakes, netting, or willow roots are placed in the pond. The broodstock lay and fertilize their eggs on these nests, and the fertilized eggs adhere to them. The nests containing the fertilized eggs are then removed and incubated in a separate pond. If the eggs are non-adhesive, the injected broodstock are placed in a dedicated flowing-water spawning pond. After spawning, the fertilized eggs are collected and incubated in a hatching ring. Fully artificial breeding involves artificial injection of oxytocin and artificial insemination. After injection, the male and female broodstock are separated into different ponds. Based on past experience, artificial insemination can be performed when they reach maturity. Artificial insemination involves gently squeezing the eggs from the female fish's abdomen, from front to back, into a container. Similarly, the male fish's sperm is squeezed into the same container. The mixture is then quickly stirred with a feather to ensure thorough mixing. During this process, water must be prevented from entering, as this will activate the sperm and eggs, causing them to survive for only ten seconds. With proper care, they can survive for ten to thirty minutes, perfectly meeting the time requirements for the procedure. Therefore, the fish should be dried with a towel before handling the mixture. If the volume of the sperm-egg mixture is too large, fish saline solution can be added to dilute and mix it. After mixing, an equal volume of clean water is added, and the mixture is quickly stirred again with a feather. Since the water activates the sperm and eggs, the mixture is then evenly sprinkled onto the fish nest within five to ten seconds of stirring, or washed and then incubated in the hatching ring.

[0003] Current methods require multiple people to work together, especially during handling, catching, transporting, and drying. The parent fish are easily injured and lose their body mucus, leading to post-spawning diseases and mass mortality. The process is also significantly affected by the environment; excessively high or low temperatures affect fertilization rates and labor efficiency, as the number of fertilized eggs produced per unit time is crucial. Improving efficiency often requires multiple teams. Furthermore, differences in personnel skills and inconsistent operating standards also affect fertilization rates, and fertilized eggs can easily accumulate on the fish nest, leading to oxygen deprivation and death. Therefore, a fully artificial fish breeding device was designed. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art in the process of fully artificial breeding of fish, such as easy injury to parent fish, low labor efficiency and inability to control temperature, so as to provide a fully artificial breeding device for fish.

[0005] To solve the above-mentioned technical problems, the present invention provides a fully artificial fish breeding device, including an operating component, a temperature control component, a mixing component, and a fish nest printer;

[0006] The operating component is used for placing fish and manually squeezing out sperm and eggs. The temperature control component is fixed below the operating component and is used to control the temperature required for fish reproduction.

[0007] The mixing component is fixed on the operating component and the temperature control component. The mixing component is used to fully mix fish sperm and eggs. The fish nest printer is located at the mixing liquid outlet of the mixing component. The fish nest printer can activate the sperm and eggs when they come into contact with water to complete fertilization and fusion.

[0008] In a preferred embodiment of the fully artificial fish breeding device of the present invention, the operating component includes a frame on which multiple operating nets are fixed.

[0009] As a preferred embodiment of the fully artificial fish breeding device of the present invention, the frame includes a base circle, a plurality of vertical rods are vertically fixed to the top of the base circle, the plurality of vertical rods are in pairs, an arc strip is fixed to the top between two of the vertical rods, the arc strip is parallel to the arc edge of the base circle, a plurality of horizontal rods are fixed to the top of the vertical rods and arranged radially parallel to the plane of the base circle, a central ring is connected between the plurality of horizontal rods, the central ring is set with the arc strip as the same center, the vertical rods, the arc strip, the horizontal rods and the central ring form a fixing frame for fixing the operating net, and the gap between two fixing frames is the operating port.

[0010] As a preferred embodiment of the fully artificial fish breeding device of the present invention, the operating net is a scoop net for placing and fixing the fish, and the operating net is fixed on a fixed frame;

[0011] The operating net has a head near the arc end, a tail near the central ring end, and mesh holes in the middle.

[0012] As a preferred embodiment of the fully artificial fish breeding device of the present invention, the net head is fixed on the arc strip, the net tail is fixed on the central ring, the width of the net head is smaller than the width of the net tail, and the width of the middle part of the operating net is greater than the width of the net head and the net tail.

[0013] As a preferred embodiment of the fully artificial fish breeding device of the present invention, the temperature control component includes a barrel, a chiller, an inlet pipe and an outlet pipe, the barrel is a cylindrical structure, the diameter of the barrel is equal to the diameter of the base circle, and the barrel is fixed to the bottom of the base circle.

[0014] The chiller is fixed to the tank body. The water inlet of the chiller is connected to the upper end of the tank body through the water inlet pipe. After cooling the water, the chiller returns the water to the tank body through the water outlet pipe to form a water circulation.

[0015] The bottom of the barrel is fixed with multiple pillars at equal intervals around its circumference.

[0016] In a preferred embodiment of the fully artificial fish breeding device of the present invention, the mixing component includes a liquid storage tank and a mixing funnel. The liquid storage tank is fixed directly above the operating component. A drain pipe is connected to the bottom of the outer surface of the liquid storage tank. A flushing ring is connected to the bottom of the drain pipe. A switch is provided on the drain pipe, and a small hole is provided below the flushing ring.

[0017] The outer diameter of the mixing funnel is equal to the inner diameter of the base circle, the mixing funnel is fixed on the base circle, the height of the mixing funnel is equal to the height of the barrel, and the mixing funnel is placed inside the barrel.

[0018] The bottom of the mixing funnel is connected to a conduit that passes through the barrel and extends to the outside of the barrel.

[0019] As a preferred embodiment of the fully artificial fish breeding device of the present invention, the opening at the top of the conduit is provided with an inverted sealing cone, and a rope is connected to the center of the top of the sealing cone. The top of the rope passes through the central ring and is connected to the bottom of the liquid storage tank. Pulling up and lowering the sealing cone can open and close the conduit.

[0020] As a preferred embodiment of the fully artificial fish breeding device of the present invention, the fish nest printer includes a water tank, the upper part of one end of the water tank is wrapped with a fish nest for adhering fish eggs, one end of the inside of the water tank is rotatably connected to a roller, and one end of the fish nest passes around the bottom of the roller and lies flat on the bottom of the water tank.

[0021] A sample strip is fixed to the bottom of the water tank. The sample strip is a semi-circular, raised, soft, elastic, arc-shaped strip. A V-shaped groove is rolled inside the water tank.

[0022] The bottom of the water tank is fixed with multiple tank legs.

[0023] As a preferred embodiment of the fully artificial fish breeding device of the present invention, the V-shaped trough includes a trough body, the bottom of the trough body is provided with a strip slit, the sample strip is used to close the strip slit, the top of the trough body is fixed with a sealing cover, the sealing cover is provided with an air valve, and the two ends of the trough body are rotatably connected with pulleys, the pulleys are placed on the two long sides of the trough and can roll back and forth from head to tail.

[0024] By employing the above technical solution, the present invention provides a fully artificial breeding device for fish, which has at least the following beneficial effects:

[0025] This invention is simple to operate. During the operation, the eggs are preserved under optimal temperature conditions, which effectively ensures the activity of the sperm and eggs. It is conducive to standard operation and has low technical requirements for operators, making it suitable for ordinary workers. It prevents fish eggs from dying due to hypoxia caused by accumulation. The fish fertilization process is proceduralized and the operation process is optimized to protect the fish from harm, thereby improving the fertilization rate and fry production efficiency. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the operating component structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the operating network structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the temperature control component structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the hybrid component structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the hybrid component structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the V-groove structure of the present invention.

[0034] In the diagram: 100, Operating component; 101, Frame; 1011, Base circle; 1012, Vertical rod; 1013, Arc strip; 1014, Horizontal rod; 1015, Central ring; 102, Operating net; 1021, Net head; 1022, Net tail; 1023, Mesh; 200, Temperature control component; 201, Tank body; 202, Chiller; 203, Inlet pipe; 204, Outlet pipe; 205, Column; 300, Mixing component; 301 302. Liquid storage tank; 303. Liquid drain pipe; 304. Switch; 305. Flushing ring; 306. Mixing funnel; 307. Guide tube; 308. Rope; 309. Sealing cone; 400. Fish nest printer; 401. Water tank; 402. Roller; 403. Fish nest; 404. V-groove; 4041. Tank body; 4042. Strip slit; 4043. Sealing cap; 4044. Air valve; 4045. Pulley; 406. Adding strip; 407. Tank leg. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Currently, during the handling, catching, transportation, and drying processes, broodstock are easily injured and lose their body surface mucus, leading to post-spawning infections and mass mortality. The handling process is also significantly affected by the environment; excessively high or low air temperatures can affect fertilization rates and reduce labor efficiency. Since the number of fertilized eggs produced per unit time is crucial, increasing efficiency often requires multiple teams. Differences in personnel skills and inconsistent operational standards also affect fertilization rates, and fertilized eggs can easily accumulate on the fish nests, leading to oxygen deprivation and death.

[0037] To address the aforementioned problems, this application provides a fully artificial breeding device for fish, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application, and each embodiment has its own emphasis in the following embodiments. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0038] Example 1:

[0039] like Figure 1 As shown, a fully artificial fish breeding device includes an operation component 100, a temperature control component 200, a mixing component 300, and a fish nest printer 400.

[0040] The operating component 100 is used for placing fish and manually squeezing out sperm and eggs. The temperature control component 200 is fixed below the operating component 100 and is used to control the temperature required for fish reproduction.

[0041] The mixing component 300 is fixed on the operating component 100 and the temperature control component 200. The mixing component 300 is used for the thorough mixing of fish sperm and eggs. The fish nest printer 400 is located at the mixing liquid outlet of the mixing component 300. The fish nest printer 400 can activate the sperm and eggs when they come into contact with water to complete fertilization and fusion.

[0042] This invention is simple to operate. During the operation, the eggs are preserved under optimal temperature conditions, which effectively ensures the activity of the sperm and eggs. It is conducive to standard operation and has low technical requirements for operators, making it suitable for ordinary workers. It prevents fish eggs from dying due to hypoxia caused by accumulation. The fish fertilization process is proceduralized and the operation process is optimized to protect the fish from harm, thereby improving the fertilization rate and fry production efficiency.

[0043] Example 2:

[0044] This embodiment is based on the previous embodiment, but differs from the previous embodiment in that it provides an operation component 100.

[0045] The operation component 100 includes a frame 101, on which multiple operation nets 102 are fixed.

[0046] The frame 101 includes a base circle 1011. Multiple vertical rods 1012 are vertically fixed to the top of the base circle 1011. The multiple vertical rods 1012 are arranged in pairs. An arc strip 1013 is fixed to the top between two vertical rods 1012. The arc strip 1013 is parallel to the arc edge of the base circle 1011. Multiple horizontal rods 1014 are arranged radially parallel to the plane of the base circle 1011 and fixed to the top of the vertical rods 1012. A central ring 1015 is connected between the multiple horizontal rods 1014. The central ring 1015 and the arc strip 1013 are arranged with the same center. The vertical rods 1012, arc strips 1013, horizontal rods 1014 and central ring 1015 form a fixing frame for fixing the operating net 102. The gap between two fixing frames is an operating opening to facilitate the operation of the staff.

[0047] The operating net 102 is a scoop net for placing and securing fish. The operating net 102 is fixed on a fixed frame. The operating net 102 has a net head 1021 at the end near the arc bar 1013 and a net tail 1022 at the end near the central ring 1015. The operating net 102 has mesh holes 1023 in the middle.

[0048] The head of the net 1021 is fixed on the arc strip 1013, and the tail of the net 1022 is fixed on the central ring 1015. The width of the head of the net 1021 is smaller than the width of the tail of the net 1022, and the width of the middle part of the operating net 102 is greater than the width of the head of the net 1021 and the tail of the net 1022.

[0049] During the operation, the head of the parent fish is placed inside the head of the net 1021, the tail of the parent fish is placed inside the tail of the net 1022, and the reproductive opening of the parent fish is placed on the mesh 1023. The staff holds the back of the fish with one hand and supports the belly of the fish with the other hand, and squeezes the abdomen of the parent fish from front to back to make the sperm and eggs fall into the mixing funnel 305 of the mixing component 300. After squeezing, the parent fish is replaced and the operation is repeated.

[0050] Example 3:

[0051] This embodiment is based on the previous embodiment, but differs from the previous embodiment in that it provides a temperature control component 200.

[0052] The temperature control component 200 includes a tank 201, a chiller 202, an inlet pipe 203, and an outlet pipe 204. The tank 201 has a cylindrical structure, and the diameter of the tank 201 is equal to the diameter of the base circle 1011. The tank 201 is fixed to the bottom of the base circle 1011.

[0053] The chiller 202 is fixed on the tank 201. The water inlet of the chiller 202 is connected to the upper end of the tank 201 through the water inlet pipe 203. After the chiller 202 cools the water, it returns to the tank 201 through the water outlet pipe 204 to form a water circulation. Multiple columns 205 are fixed at equal intervals around the bottom of the tank 201.

[0054] The chiller 202 can draw water from the tank 201 through the inlet pipe 203. The chiller 202 can cool the water to the range of 5-13℃, and then return it to the tank 201 through the outlet pipe 204 to form a water circulation, thereby ensuring the optimal temperature required for the breeding of parent fish.

[0055] Example 4:

[0056] This embodiment is based on the previous embodiment, but differs from the previous embodiment in that it provides a hybrid component 300.

[0057] The mixing component 300 includes a liquid storage tank 301 and a mixing funnel 305. The liquid storage tank 301 is fixed directly above the operating component 100. The bottom of the outer surface of the liquid storage tank 301 is connected to a liquid drain pipe 302. The bottom of the liquid drain pipe 302 is connected to a flushing ring 304. A switch 303 is provided on the liquid drain pipe 302. A small hole is provided below the flushing ring 304.

[0058] The outer diameter of the mixing funnel 305 is equal to the inner diameter of the base circle 1011. The mixing funnel 305 is fixed on the base circle 1011. The height of the mixing funnel 305 is equal to the height of the barrel 201. The mixing funnel 305 is placed inside the barrel 201.

[0059] The bottom of the mixing funnel 305 is connected to a conduit 306, which passes through the barrel 201 and extends to the outside of the barrel 201.

[0060] An inverted sealing cone 308 is provided at the opening at the top of the conduit 306. A rope 307 is connected to the center of the top of the sealing cone 308. The top of the rope 307 passes through the central ring 1015 and is connected to the bottom of the liquid storage tank 301. Pulling up and lowering the sealing cone 308 can open and close the conduit 306.

[0061] The reservoir 301 contains sperm preservation solution, which can preserve the activity of sperm and eggs in the mixing funnel 305 and extend the operation time. When a large number of sperm and eggs accumulate in the mixing funnel 305, a monoploid sperm preservation solution is added. The sealing cone 308 is pulled up by the rope 307, and the mixture flows into the V-shaped groove 404 of the fish nest printer 400.

[0062] If the fish eggs are a non-viscous mixture, they are sent to a conventional hatching loop for incubation; otherwise, they are sent to a fish nest printer.

[0063] Example 5:

[0064] This embodiment is based on the previous embodiment, but differs from the previous embodiment in that it provides a fish nest printer 400.

[0065] The fish nest printer 400 includes a water tank 401, with a fish nest 403 for adhering fish eggs wrapped around the upper part of one end of the water tank 401, and a roller 402 rotatably connected to one end inside the water tank 401. One end of the fish nest 403 passes around the bottom of the roller 402 and lies flat on the bottom of the water tank 401.

[0066] A spline 405 is fixed to the bottom of the water tank 401. The spline 405 is a semi-circular raised, soft, elastic, arc-shaped strip. A V-shaped groove 404 is rolled inside the water tank 401. Multiple groove legs 406 are fixed to the bottom of the water tank 401.

[0067] V-shaped groove 404 includes a groove body 4041. The bottom of the groove body 4041 is provided with a strip slit 4042. A spline 405 is used to close the strip slit 4042. A sealing cap 4043 is fixed to the top of the groove body 4041. An air valve 4044 is provided on the sealing cap 4043. Pulleys 4045 are rotatably connected to both ends of the groove body 4041. The pulleys 4045 are placed on the two long sides of the water tank 401 and can roll back and forth from beginning to end.

[0068] When the V-shaped groove 404 is moved, the air valve 4044 is twisted, the pressure inside the V-shaped groove 404 decreases, and the sperm-egg mixture leaks evenly from the strip slit 4042 and mixes with the water in the water tank 401. At this time, the sperm and eggs are activated when they come into contact with water, and fertilization and fusion are completed during the falling process. They fall and adhere to the fish nest 403.

[0069] When the V-shaped groove 404 reaches its end point, close the air valve 4044, retract the fish nest 403 with fertilized eggs adhering to it, replace the fish nest 403, and move the V-shaped groove 404 again. Alternatively, palm flakes can be used instead of fine mesh and mosquito net. Repeat this process of moving and replacing the fish nest 403 until the mixture in the V-shaped groove 404 is used up, at which point the mixture can be added again.

[0070] Every April, 3,000 kilograms of carp are artificially bred. After being injected with spawning stimulants, the breeding operation begins when the effect time is reached. The breeding operation uses the operating component 100, temperature control component 200, mixing component 300 and fish nest printer 400 of this device.

[0071] Before the operation, add sperm preservation solution to the storage tank 301 and add sperm preservation solution to the mixing funnel 305. The volume of sperm preservation solution is about half the total volume of the egg.

[0072] The head of the carp is placed in the head of the net 1021, the tail of the carp is placed in the tail of the net 1022, and the genital opening of the carp is placed on the mesh 1023. The staff holds the back of the carp with one hand and supports the belly of the carp with the other hand, and squeezes the belly of the carp from front to back to make the sperm and eggs fall into the mixing funnel 305 of the mixing component 300. After squeezing, the carp is replaced and the process is repeated.

[0073] Multiple operators simultaneously begin squeezing the sperm or eggs from the parent fish, squeezing the sperm and eggs into the mixing funnel 305;

[0074] When the number of eggs in the mixing funnel reaches about 1 million, switch 303 is turned on again, so that the sperm preservation solution can be flushed down the residual part on the inner wall of the mixing funnel 305 through the flushing ring 304 until the amount added last time is reached.

[0075] Pull up the sealing cone 308 to allow the mixture to flow into the V-shaped trough 404 through the conduit 306. Once full, move the V-shaped trough 404 and open the air valve 4044 to allow the mixture to leak evenly from the strip slit 4042. After the fish nest 403 at the bottom of the water tank 401 is fully covered, close the air valve 4044, remove the fish nest 403 with fertilized eggs for incubation, and then place the fish nest 403 on top again and move the V-shaped trough 404 to open the air valve 4044. Repeat this process until the carp parent breeding is complete.

[0076] Every April, 1,000 kilograms of freshwater large yellow croaker are artificially bred. The eggs of the large yellow croaker are non-adhesive. After injecting spawning stimulants, the breeding operation begins when the effect time is reached. The breeding operation uses operation component 100, temperature control component 200 and mixing component 300.

[0077] Before the operation, add sperm preservation solution to the storage tank 301 and add sperm preservation solution to the mixing funnel 305. The volume of sperm preservation solution is about half the total volume of the egg.

[0078] The head of the large yellow croaker is placed in the head of the net 1021, the tail of the large yellow croaker is placed in the tail of the net 1022, and the reproductive opening of the large yellow croaker is placed on the mesh 1023. The staff holds the back of the fish with one hand and supports the belly of the fish with the other hand, and squeezes the abdomen of the parent fish from front to back to make the sperm and eggs fall into the mixing funnel 305 of the mixing component 300. After squeezing, the parent fish is replaced and the process is repeated.

[0079] Multiple operators simultaneously begin squeezing the sperm or eggs from the large yellow croaker, squeezing the sperm and eggs into the mixing funnel 305;

[0080] When the number of eggs in the mixing funnel reaches about 300,000, switch 303 is turned on again, so that the sperm preservation solution can be flushed down the residual part on the inner wall of the mixing funnel 305 through the flushing ring 304 until the amount added last time is reached.

[0081] Pull up the sealing cone 308 to allow the mixture to flow into the storage container through the conduit 306 and be sent into the incubation ring for incubation. Repeat this process until the breeding of freshwater large yellow croaker parent fish is completed.

[0082] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0083] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully artificial breeding device for fish, characterized in that, include: An operating component (100) is used for placing fish and manually squeezing out sperm and eggs; Temperature control component (200), which is fixed below the operating component (100), is used to control the temperature required for fish reproduction; A mixing component (300) is fixed to an operating component (100) and a temperature control component (200), the mixing component (300) being used for the thorough mixing of fish sperm and eggs; Fish nest printer (400), the fish nest printer (400) is located at the mixing liquid outlet end of the mixing component (300), the fish nest printer (400) can make the sperm and eggs be activated by water to complete fertilization and fusion; The mixing assembly (300) includes a liquid storage tank (301) and a mixing funnel (305). The liquid storage tank (301) is fixed directly above the operating assembly (100). The bottom of the outer surface of the liquid storage tank (301) is connected to a drain pipe (302). The bottom of the drain pipe (302) is connected to a flushing ring (304). A switch (303) is provided on the drain pipe (302). A small hole is provided below the flushing ring (304). The mixing funnel (305) is placed inside the temperature control assembly (200). The bottom of the mixing funnel (305) is connected to a conduit (306). The fish nest printer (400) includes a water tank (401), with a fish nest (403) for adhering fish eggs wrapped around the upper part of one end of the water tank (401), and a roller (402) rotatably connected to one end inside the water tank (401). One end of the fish nest (403) passes around the bottom of the roller (402) and is laid flat on the bottom of the water tank (401). The bottom of the water tank (401) is fixed with a sample strip (405), which is a semi-circular raised soft elastic arc-shaped strip. The inside of the water tank (401) is connected with a V-shaped groove (404). The V-shaped groove (404) includes a groove body (4041), the bottom of which is provided with a strip slit (4042), and the spline (405) is used to seal the strip slit (4042). A sealing cap (4043) is fixed to the top of the groove body (4041), and an air valve (4044) is provided on the sealing cap (4043). Pulleys (4045) are rotatably connected to both ends of the groove body (4041), and the pulleys (4045) are placed on the two long sides of the water tank (401) and can roll back and forth from beginning to end.

2. The fish artificial breeding device according to claim 1, characterized in that: The operating component (100) includes a frame (101) on which a plurality of operating nets (102) are fixed.

3. The fish artificial breeding device according to claim 2, characterized in that: The frame (101) includes a base circle (1011), and multiple vertical rods (1012) are vertically fixed to the top of the base circle (1011). The multiple vertical rods (1012) are arranged in pairs. An arc strip (1013) is fixed to the top between two of the vertical rods (1012). The arc strip (1013) is parallel to the arc edge of the base circle (1011). Multiple horizontal rods (1014) arranged radially parallel to the plane of the base circle (1011) are fixed to the top of the vertical rods (1012). A central ring (1015) is connected between the multiple horizontal rods (1014). The central ring (1015) and the arc strip (1013) are arranged with the same center. The vertical rods (1012), arc strips (1013), horizontal rods (1014) and central ring (1015) form a fixing frame for fixing the operating net (102). The gap between two fixing frames is the operating port.

4. The fish artificial breeding device according to claim 3, characterized in that: The operating net (102) is a scoop net for placing and securing fish, and the operating net (102) is fixed on a fixed frame; The operating net (102) has a head (1021) near the arc strip (1013), a tail (1022) near the center ring (1015), and a mesh (1023) in the middle.

5. The fish artificial breeding device according to claim 4, characterized in that: The head of the net (1021) is fixed on the arc strip (1013), and the tail of the net (1022) is fixed on the central ring (1015). The width of the head of the net (1021) is smaller than the width of the tail of the net (1022), and the width of the middle part of the operating net (102) is greater than the width of the head of the net (1021) and the tail of the net (1022).

6. The fish artificial breeding device according to claim 5, characterized in that: The temperature control component (200) includes a tank (201), a chiller (202), an inlet pipe (203), and an outlet pipe (204). The tank (201) has a cylindrical structure, and the diameter of the tank (201) is equal to the diameter of the base circle (1011). The tank (201) is fixed to the bottom of the base circle (1011). The chiller (202) is fixed on the tank (201). The water inlet of the chiller (202) is connected to the upper end of the tank (201) through the water inlet pipe (203). After the chiller (202) cools the water, it returns to the tank (201) through the water outlet pipe (204) to form a water circulation. The bottom of the barrel (201) is fixed with multiple columns (205) at equal intervals around the circumference.

7. The fish artificial breeding device according to claim 6, characterized in that: The outer diameter of the mixing funnel (305) is equal to the inner diameter of the base circle (1011), the mixing funnel (305) is fixed on the base circle (1011), and the height of the mixing funnel (305) is equal to the height of the barrel (201). The conduit (306) passes through the barrel (201) and extends to the outside of the barrel (201).

8. The fish artificial breeding device according to claim 7, characterized in that: The top opening of the conduit (306) is provided with an inverted sealing cone (308), and a rope (307) is connected to the center of the top of the sealing cone (308). The top of the rope (307) passes through the central ring (1015) and is connected to the bottom of the liquid storage tank (301). Pulling up and lowering the sealing cone (308) can open and close the conduit (306).

9. The fish artificial breeding device according to claim 1, characterized in that: The bottom of the water tank (401) is fixed with multiple tank legs (406).

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