A goldfish feeding device

Abstract

This utility model discloses a golden croaker rearing device, relating to the technical field of fish rearing devices. It includes a first rearing pond filled with water for raising golden croakers; a net horizontally arranged within the first rearing pond, capable of moving up and down to drive the golden croakers to the bottom; and a pressurization pipe connected at one end to the first rearing pond and at the other end to a second rearing pond, capable of transporting the water from the first rearing pond to the second rearing pond at a set flow rate and pressure, and transporting the golden croakers from the first pond to the second rearing pond. The golden croaker rearing device provided by this utility model can promote the movement of the golden croaker swim bladder under stress conditions such as water depth, water flow, and water pressure, thereby improving the swim bladder quality and overall fish quality.

Description

Technical Field

[0001] This utility model relates to the field of fish farming equipment technology, and in particular to a fish farming device for golden croaker. Background Technology

[0002] Fish swim bladders are the raw material for making fish maw and have specific medicinal effects, especially those of species like the golden croaker (Sciaenia serratifolia) in the Sciaenidae family, which have high medicinal value. The farming environment and feed used both affect the growth of the golden croaker swim bladders. Similarly, the amino acids, sugars, and trace elements that make up the swim bladder can vary significantly due to different environmental characteristics. The swim bladder plays a crucial role in the morphology and physiology of fish, including buoyancy, environmental perception, hearing and vocalization, defense and avoidance, communication among groups, courtship during the breeding season, and respiratory assistance. Farmed golden croaker exhibits significant differences in morphological indicators such as body weight, thickness, length-to-width ratio, barbel diameter, and barbel length compared to wild golden croaker. In the wild, changes in water depth and current velocity in the natural marine environment increase the frequency of swim bladder movement and the amplitude of swim bladder contraction, resulting in fully developed and high-quality swim bladders.

[0003] In order to achieve large-scale collection of swim bladders, it is necessary to artificially breed golden croaker. However, under the breeding conditions, the limited water depth, the almost constant water layer and the low swimming frequency can all lead to the swim bladder development being hindered during the growth and development of the fish, resulting in shrinkage or degeneration, which in turn leads to a decrease in swim bladder quality and a deterioration in quality.

[0004] For the reasons mentioned above, there is an urgent need to design an artificial breeding technology that can improve the quality of fish swim bladders and enhance their overall quality. Utility Model Content

[0005] The purpose of this invention is to provide a goldfish breeding device to solve the problems existing in the prior art, thereby improving the quality of the swim bladder and its overall quality.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a device for raising golden croaker, including:

[0008] The first breeding pond contains water for raising golden croaker;

[0009] The net is horizontally arranged in the first culture pond and can move up and down in the first culture pond to drive the golden croaker in the first culture pond to swim to the bottom of the first culture pond;

[0010] A pressurization pipe is connected at one end to the first aquaculture pond and at the other end to the second aquaculture pond. The pressurization pipe can transport the aquaculture water in the first aquaculture pond to the second aquaculture pond at a set flow rate and pressure, and transport the golden croaker in the first aquaculture pond to the second aquaculture pond.

[0011] Preferably, the first aquaculture pond is provided with a vertically arranged partition wall, which divides the first aquaculture pond into a first pond cavity and a second pond cavity. The bottom of the partition wall is provided with a connecting port, which can connect the first pond cavity and the second pond cavity. The net is movably installed in the first pond cavity, and one end of the pressurization pipe is connected to the second pond cavity.

[0012] Preferably, the inner wall of the first pool cavity is provided with vertically arranged slides, and the side wall of the net is slidably disposed in the slide on the corresponding side.

[0013] Preferably, the pressurization pipeline includes a first vertical pipeline and a second vertical pipeline. The top of the first vertical pipeline is connected to the side wall of the first aquaculture pond, the top of the second vertical pipeline is connected to the upper side wall of the second aquaculture pond, and the bottom of the first vertical pipeline is connected to the bottom of the second vertical pipeline through a connecting pipeline.

[0014] Preferably, the inner diameter of the first vertical pipe is larger than the inner diameter of the second vertical pipe.

[0015] Preferably, the inner diameter of the pressurization pipe gradually decreases from the end near the first aquaculture pond to the end near the second aquaculture pond.

[0016] Preferably, the first vertical pipe is connected to a variable frequency booster pump via a water supply pipeline, and the inlet of the variable frequency booster pump is connected to the bottom of the first aquaculture pond via another water supply pipeline.

[0017] Preferably, a vertically arranged support pipe is fixed at the corner of the first pool cavity, and the net is slidably sleeved on the support pipe.

[0018] Preferably, a barrier net is fixedly installed at the opening of the water supply pipeline away from the variable frequency booster pump, and the mesh size of the barrier net is smaller than that of the golden croaker.

[0019] Preferably, it also includes a drive device, which is connected to the net and is capable of driving the net to move up and down.

[0020] The present invention achieves the following technical advantages over the prior art:

[0021] This utility model relates to a goldfish rearing device. During artificial breeding, the fish are driven downstream by a net from top to bottom, subjecting them to changes in water depth. Water and fish from a first rearing pond are transported to a second rearing pond at a set flow rate and pressure through a pressurized pipe, forcing the fish into the pressurized pipe. As the pressure in the pressurized pipe increases, the pressure stress experienced by the fish also changes. Simultaneously, the flow rate in the pressurized pipe can also be changed, allowing the fish to tolerate the flow rate stress. When the fish cannot withstand the flow rate stress and are swept into the second rearing pond, the stress training ends. By experiencing various stress training effects such as changes in water depth, water pressure, and water flow rate, compared to rearing under artificial environmental conditions, this device effectively promotes the frequency and intensity of swim bladder movement, strengthens the growth and development of the swim bladder, and thus improves the quality of the swim bladder and its overall quality. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the principle of a golden croaker breeding device in one or more embodiments of the present invention.

[0024] Figure 2 This is a schematic diagram of the golden croaker breeding device in one or more embodiments of the present invention.

[0025] In the diagram: 1-First breeding pond, 2-Second breeding pond, 3-Netting, 4-Partition wall, 5-Variable frequency booster pump, 6-Water supply pipeline, 7-Golden croaker, 8-Booster pipeline. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The purpose of this invention is to provide a goldfish breeding device to solve the problems existing in the prior art, thereby improving the quality of the swim bladder and its overall quality.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Artificial breeding of golden croaker is hampered by limited water depth, almost constant water layer, and low swimming frequency under certain conditions. This can hinder swim bladder development, leading to shrinkage or degeneration and consequently reducing swim bladder quality. To simulate the variations in water depth and current velocity in the natural marine environment, this invention provides a golden croaker breeding device to increase swim bladder movement frequency and contraction amplitude, thus promoting full swim bladder development and improving swim bladder quality. Figure 1 As shown, the system includes a first culture pond 1 and a second culture pond 2. The first culture pond 1 contains culture water for raising golden croaker. A net 3 is horizontally arranged in the first culture pond 1 and can move up and down in the first culture pond 1 to drive the golden croaker in the first culture pond 1 to swim to the bottom of the first culture pond 1. A pressurization pipe 8 is connected to the first culture pond 1 at one end and to the second culture pond 2 at the other end. The pressurization pipe 8 can transport the culture water in the first culture pond 1 to the second culture pond 2 at a set flow rate and pressure, and transport the golden croaker in the first culture pond 1 to the second culture pond 2. This utility model relates to a fish rearing device for golden croaker (7-fish). During artificial rearing, a net 3 guides the fish downstream from top to bottom, subjecting them to changes in water depth. A pressurized pipe 8 transports water and fish from a first rearing pond 1 to a second rearing pond 2 at a set flow rate and pressure, forcing the fish into the pressurized pipe 8. As the pressure in the pressurized pipe 8 increases, the pressure stress experienced by the fish changes. Simultaneously, the flow rate in the pressurized pipe 8 can also be altered, allowing the fish to tolerate the flow rate stress. When the fish cannot withstand the flow rate stress and is swept into the second rearing pond 2, the stress training ends. By experiencing various stresses—changes in water depth, pressure, and flow rate—compared to rearing under artificial environmental conditions, this device effectively promotes the frequency and intensity of swim bladder movement, strengthens swim bladder growth and development, and ultimately improves swim bladder quality and overall fish characteristics.

[0030] To simulate changes in water depth, in one embodiment, a vertically arranged partition wall 4 is provided in the first breeding pond 1, dividing the first breeding pond 1 into a first chamber and a second chamber. The bottom of the partition wall 4 has a connecting opening that connects the first and second chambers. A net 3 is movably installed in the first chamber, and one end of a pressurization pipe 8 is connected to the second chamber. In other embodiments, the first partition wall 4 is fixedly connected to the two opposing inner walls of the first breeding pond 1, and the bottom of the partition wall 4 is not connected to the bottom of the first breeding pond 1, thus forming a connecting opening structure. Using the net 3, which is taut on all four sides, fish are propelled from top to bottom towards the connecting opening at the bottom of the partition wall 4 in the center of the pond, forcing the fish to swim through the connecting opening below the partition wall 4 to the second chamber, thus subjecting the fish to changes in water depth.

[0031] In one embodiment, the inner wall of the first pool cavity is provided with vertically arranged slide rails. The sidewall of the net 3 is slidably disposed within the corresponding slide rail. The slide rail structure guides and limits the net 3. To achieve a taut effect for the net 3, in this embodiment, the net 3 includes a rectangular frame. The sidewall of the rectangular frame slides within the slide rail, and a fiber mesh with perforations is fixedly disposed on the inner side of the rectangular frame. In another embodiment, vertically arranged support tubes are fixedly disposed at the corners of the first pool cavity. The support tubes are made of stainless steel round tubes, and each of the four corners of the net 3 has a sliding ring. The net 3 is slidably fitted onto the corresponding support tube, keeping the net 3 taut and undeformed. The support tubes are used to fix and maintain the balance of the net 3 during its vertical movement. The net 3 moves up and down with the help of the vertical support tubes at the corners of the first pool cavity, keeping the net 3 parallel to the bottom of the pool. The mesh size of the net 3 is smaller than the volume of the fish, thus driving the fish downwards and preventing them from swimming back. In one embodiment, a drive device is designed, which is connected to the net 3 and can drive the net 3 to move up and down. The drive device can be a vertically arranged screw and nut pair, with the nut on the screw connected to the net 3. The screw motor drives the screw to rotate, thereby causing the nut to drive the net 3 to move up and down along the screw. The drive device can also be a cylinder or a hydraulic cylinder, with the end of the cylinder rod connected to the net 3. The up and down movement of the net 3 is achieved by extending and retracting the cylinder rod.

[0032] In one embodiment, the booster pipe 8 includes a first vertical pipe and a second vertical pipe. The top of the first vertical pipe is connected to the upper sidewall of the first aquaculture tank 1, and the top of the second vertical pipe is connected to the upper sidewall of the second aquaculture tank 2. The bottom of the first vertical pipe is connected to the bottom of the second vertical pipe via a connecting pipe. The inner diameter of the first vertical pipe is larger than that of the second vertical pipe, and the inner diameter of the booster pipe 8 gradually decreases from the end near the first aquaculture tank 1 to the end near the second aquaculture tank 2. The first vertical pipe is connected to a variable frequency booster pump 5 via a water supply pipe 6, and the inlet of the variable frequency booster pump 5 is connected to the bottom of the first aquaculture tank 1 via another water supply pipe 6. The variable frequency booster pump 5 can transport water from the first aquaculture pond 1 to the booster pipe 8, thereby changing the flow rate in the booster pipe 8 and creating a pressure difference at the connection point between the booster pipe 8 and the first aquaculture pond 1. Under the negative pressure in the booster pipe 8, the water in the first aquaculture pond 1 will carry the fish into the booster pipe 8 through the side wall connection. By adjusting the power of the variable frequency booster pump 5, the flow rate and flow volume in the booster pipe 8 can be changed, thereby achieving the regulation of the flow rate and flow volume in the booster pipe 8. To prevent the water level in the first rearing pond 1 from falling below the side wall connection opening and causing water flow interruption, water can be continuously replenished to the first rearing pond 1 via an external water pump during operation. Alternatively, water from the second rearing pond 2 can be pumped and piped into the first rearing pond 1 to achieve circulation, thus ensuring that the water level in the first rearing pond 1 remains above the connection opening between the first rearing pond 1 and the pressurization pipe 8. In other embodiments, the pressurization pipe 8 can also be connected to the lower part of the side wall of the first rearing pond, allowing most of the water in the first rearing pond to enter the pressurization pipe 8. Changes in the pipe diameter of the pressurization pipe 8 lead to an increase in water pressure, forcing the golden croaker 7 to undergo water flow stress and water pressure stress training. After intensive training, the golden croaker 7 can be transferred back to the original pond or undergo multiple intensive training sessions to promote swim bladder growth and development.

[0033] To prevent the golden croaker 7 from entering the variable frequency booster pump 5 and causing harm to the fish and the pump 5, in one embodiment, a barrier net is fixedly installed at the opening of the water supply pipeline 6 away from the variable frequency booster pump 5. The mesh size of the barrier net is smaller than that of the golden croaker 7. This ensures that during the process of the variable frequency booster pump 5 transporting water from the first breeding pond 1 to the booster pipeline 8, no golden croaker 7 will enter the water supply pipeline 6 or the variable frequency booster pump 5, thus improving safety.

[0034] Example 1

[0035] like Figure 2As shown, in this embodiment, during the cultivation of golden croaker 7, changes in water pressure, water flow, and water depth are used to further enhance the movement of the swim bladder, thereby improving its growth and development, weight, thickness, and morphology, ultimately improving its quality. This embodiment constructs or modifies a long, narrow cement pool as the first cultivation pool 1. A brick-built partition wall 4 is constructed in the middle, blocking the flow between the upper and lower layers. The partition wall 4 divides the first cultivation pool 1 into a first and second pool chamber arranged to the left and right. Vertical stainless steel pipes are installed at the four corners of the left side of the long, narrow cement pool to fix the vertically moving nets 3. An opening is made on the upper right side of the long, narrow cement pool to connect to a pressurization pipe 8. The pressurization pipe 8 is thicker at the front end than at the rear end, achieving a pressurization effect through a tapering design. Simultaneously, a variable frequency booster pump 5 is installed at the front end of the pipe, increasing the water volume into the booster pipe 8, further enhancing the pressurization and speed.

[0036] In this embodiment, the first aquaculture pond 1 has a depth of 3.5 meters, a long side of no less than 6 meters, and a short side of no less than 3 meters. A partition wall 4, with an upper section blocking water flow while maintaining horizontal connectivity at the bottom, is constructed in the center of the elongated first aquaculture pond 1. The upper part of the partition wall 4 is flush with the edge of the first aquaculture pond 1, and the lower part is 0.5 meters from the bottom of the pond. A circular pipe with a diameter of 0.6 meters is connected to the upper right side of the first aquaculture pond 1, serving as a pressurization pipe 8. The diameter of the pressurization pipe 8 gradually decreases to 0.2 meters at two-fifths of its length, and the pipe opening connects to another cement pond, namely the second aquaculture pond 2, with an area of ​​no less than 10 square meters. A variable frequency booster pump 5 with a power of 1000 watts is installed at a height of 0.6 meters on the booster pipe 8. The flow rate of the pump is adjusted by changing the speed of the booster pump 5, and the water jet direction is along the direction of the booster pipe 8, from the larger diameter to the smaller diameter. This simultaneously provides the pressurization effect within the booster pipe 8.

[0037] Construct a square net 3 with sides of 3 meters and a mesh size of 2 centimeters, ensuring the fish cannot escape. Secure the four sides of the net 3 with stainless steel pipes to maintain tautness and prevent deformation. Create rings at the four corners of the net 3 to allow the stainless steel pipes to pass through. On the left side of the first elongated rearing pond 1, attach stainless steel pipes from top to bottom at the four corners to secure the net 3 and maintain its balance during vertical movement. The net 3 can move up and down using the vertical stainless steel pipes at the pond corners, while remaining parallel to the pond bottom. The net 3 effectively drives the fish downwards and prevents them from swimming back.

[0038] During operation, first, move the golden croaker 7 into the first chamber on the left side of the first rearing pond 1. After the fish stabilizes, attach the net 3 to the stainless steel pipes in the four corners of the pond and slowly move it from top to bottom, forcing the fish to swim towards the bottom of the pond and through the gap at the bottom of the partition wall 4 into the second chamber on the right. This completes the fish's downward swimming motion, achieving the "exhaust-inhale" movement process of the swim bladder.

[0039] When the number of golden croaker (7) in the second pool on the right exceeds 70%, the variable frequency booster pump 5 is activated. This causes the water in the second pool to flow under negative pressure into the large-diameter booster pipe 8, carrying the golden croaker into the booster pipe 8. During this process, water is continuously replenished to the first rearing pool 1 to ensure the water level is higher than the connection point between the first rearing pool 1 and the booster pipe 8. When the fish swim into the booster pipe 8 and approach the outlet of the variable frequency booster pump 5, a sudden acceleration in flow velocity will cause a backflow phenomenon. Simultaneously, because the golden croaker (7) are in a sealed state within the booster pipe 8, they will experience pressure stress when changing from a large volume to a small volume, which also allows for effective movement of the swim bladder. By subjecting the golden croaker (7) to changes in water depth, pressure, and flow velocity, the swim bladder is kept in a state of enhanced movement. After intensive training, the golden croaker (7) can be transferred back to their original pool, or multiple intensive training sessions can be conducted to promote swim bladder growth and development.

[0040] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for rearing golden croaker fish, characterized by: include: The first breeding pond contains water for raising golden croaker; The net is horizontally arranged in the first culture pond and can move up and down in the first culture pond to drive the golden croaker in the first culture pond to swim to the bottom of the first culture pond; A pressurization pipe is connected at one end to the first aquaculture pond and at the other end to the second aquaculture pond. The pressurization pipe can transport the aquaculture water in the first aquaculture pond to the second aquaculture pond at a set flow rate and pressure, and transport the golden croaker in the first aquaculture pond to the second aquaculture pond.

2. The goldfish breeding apparatus according to claim 1, wherein: The first aquaculture pond is equipped with a vertically arranged partition wall, which divides the first aquaculture pond into a first pond cavity and a second pond cavity. The bottom of the partition wall is provided with a connecting port, which can connect the first pond cavity and the second pond cavity. The net is movably installed in the first pond cavity, and one end of the pressurization pipe is connected to the second pond cavity.

3. The goldfish breeding apparatus according to claim 2, wherein: The inner wall of the first pool cavity is provided with vertically arranged slides, and the side wall of the net is slidably disposed in the slide on the corresponding side.

4. The goldfish breeding apparatus according to claim 1, wherein: The pressurization pipeline includes a first vertical pipeline and a second vertical pipeline. The top of the first vertical pipeline is connected to the side wall of the first aquaculture pond, the top of the second vertical pipeline is connected to the upper side wall of the second aquaculture pond, and the bottom of the first vertical pipeline is connected to the bottom of the second vertical pipeline through a connecting pipeline.

5. The goldfish breeding apparatus according to claim 4, wherein: The inner diameter of the first vertical pipe is larger than the inner diameter of the second vertical pipe.

6. The goldfish breeding apparatus according to claim 1, wherein: The inner diameter of the pressurization pipe gradually decreases from the end near the first aquaculture pond to the end near the second aquaculture pond.

7. The golden croaker rearing device according to claim 4, characterized in that: The first vertical pipe is connected to a variable frequency booster pump via a water supply pipeline, and the inlet of the variable frequency booster pump is connected to the bottom of the first aquaculture pond via another water supply pipeline.

8. The golden croaker rearing device according to claim 2, characterized in that: A vertically arranged support pipe is fixed at the corner of the first pool cavity, and the net is slidably sleeved on the support pipe.

9. The golden croaker rearing device according to claim 7, characterized in that: A barrier net is fixedly installed at the opening of the water supply pipeline away from the variable frequency booster pump, and the mesh size of the barrier net is smaller than that of the golden croaker.

10. The golden croaker rearing device according to claim 1, characterized in that: It also includes a drive device, which is connected to the net and can drive the net to move up and down.

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