Efficient fry breeding facility

By using a floating ring and net cage structure and a nutrient supply device, the problems of low survival rate, resource waste and difficulty in catching fish fry in traditional fish fry cultivation have been solved, achieving efficient and safe fish fry cultivation results.

CN224178932UActive Publication Date: 2026-05-01JIANGXI PROVINCIAL FISHERIES SCI RES INST (JIANGXI PROVINCIAL POYANG LAKE FISHERY RES CENT JIANGXI PROVINCIAL FISHERY RESOURCES ECOLOGICAL ENVIRONMENT MONITORING CENT)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI PROVINCIAL FISHERIES SCI RES INST (JIANGXI PROVINCIAL POYANG LAKE FISHERY RES CENT JIANGXI PROVINCIAL FISHERY RESOURCES ECOLOGICAL ENVIRONMENT MONITORING CENT)
Filing Date
2025-06-05
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional fish fry breeding suffers from problems such as low survival rate, low feeding efficiency, resource waste, escape risk, and difficulty in capture.

Method used

It adopts a floating ring and net cage structure, combined with a nutrient supply device, and uses a guide pipe and water pump to attract and supply plankton, increase oxygenation, prevent predator attacks, and support the simultaneous cultivation of multiple fish fry.

Benefits of technology

It improved the survival rate and feeding efficiency of fish fry, reduced the use of artificial feed and water pollution, enhanced pond utilization, and simplified the harvesting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of fry breeding, in particular to an efficient fry breeding facility. The efficient fry breeding facility comprises a floating ring, the floating ring is in a square shape, and a net cage is placed in the floating ring; the number of the fixing rods is multiple, the fixing rods are all fixed to the positions, corresponding to the corners, of the floating ring, and the net cage is fixed to the fixing rods in a suspended mode; the nutrient supply device comprises a flow guide pipe, the flow guide pipe is erected on the mesh cage, and jet flow holes are formed in the position, corresponding to the mesh cage, of the outer wall of the circumference of the flow guide pipe. According to the efficient fry breeding facility, separated breeding of various fry is achieved through the arrangement of the net cages, growth of the fry is better facilitated, and meanwhile oxygenation and food supply can be achieved through the additionally arranged nutrient supply device.
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Description

A high-efficiency fish fry rearing facility Technical Field

[0001] This utility model relates to the field of fish fry farming, and in particular to a high-efficiency fish fry cultivation facility. Background Technology

[0002] Fish fry farming is a crucial part of fisheries production, and traditionally, fish fry are raised directly in ponds.

[0003] However, the following defects and shortcomings still exist in the application implementation process:

[0004] (1) They are easily preyed upon by natural enemies such as tadpoles, miscellaneous fish, and aquatic pests, resulting in a low survival rate;

[0005] (2) The fish fry are scattered and there are tadpoles and natural enemies competing for food in the pond, resulting in low feeding efficiency, waste of artificial feed and pollution of water quality;

[0006] (3) A pond can only raise the same type of fish fry or the same batch of fish fry. If the number of fish fry is not large, it will result in a waste of pond space and water resources.

[0007] (4) They are prone to escaping or getting stuck in aquatic plants or crevices and dying;

[0008] (5) When catching fish fry, it takes many people to pull the net across the whole pond, which is time-consuming and labor-intensive, and the fish fry are prone to stress and death.

[0009] Therefore, it is necessary to provide a new, efficient fish fry cultivation facility to solve the above-mentioned technical problems. Summary of the Invention

[0010] To solve the above-mentioned technical problems, this utility model provides a high-efficiency fish fry cultivation facility.

[0011] The efficient fish fry cultivation facility provided by this utility model includes:

[0012] A float ring, which is shaped like a square, with a net cage placed inside the float ring;

[0013] The fasteners are multiple and are all fixed to the float ring at corresponding corner positions. The net cage is fixed to the fasteners by means of suspension.

[0014] A nutrient supply device, comprising a guide pipe mounted on a wire mesh cage, wherein the guide pipe has spray holes on its outer circumference corresponding to the position of the wire mesh cage.

[0015] Preferably, the fixing component includes a rod body, which is vertically fixed to the float ring. A second connecting ring is welded and fixed to the top of the rod body, and a steel cable is threaded through the second connecting ring. A hook is fixed to the other end of the steel cable.

[0016] Preferably, the height of the portion of the net cage above the water surface is 30cm-50cm, and a hole is provided on the side of the net cage near the top, with a metal ring embedded and fixed inside the hole, and the hook is fastened inside the metal ring.

[0017] Preferably, a first connecting ring is welded and fixed to the outer circumference of the rod body, and the first connecting ring can be used to bind a rope for pulling and positioning the float.

[0018] Preferably, the nutrient supply device further includes a water pump, on which a float is installed to make the water pump float on the water surface, and the water inlet of the water pump extends into the water, and the guide pipe is fixed to the output end of the water pump.

[0019] Preferably, the water pump is also equipped with a plankton attracting lamp.

[0020] Compared with related technologies, the high-efficiency fish fry cultivation facility provided by this utility model has the following beneficial effects:

[0021] 1. The net cages continuously supply plankton such as rotifers, copepods, and cladocerans, which are high-quality natural food for fish fry. This reduces the need for artificial feed, lowers costs, and the live plankton food does not pollute the water.

[0022] 2. Water flowing into the net cage aerates the water, reducing the need for an aerator and lowering costs.

[0023] 3. The net cages contain no tadpoles, miscellaneous fish, aquatic pests, or other natural enemies, ensuring a safe environment for the fish fry to grow, which improves their feeding and survival rates.

[0024] 4. Multiple net cages can be set up in the pond, and the size and mesh of the net cages can be selected. Different fish fry or different batches of fish fry can be raised in the same pond at the same time as needed, thus improving the utilization rate of the pond.

[0025] 5. After the seedlings are cultivated, they can be easily harvested from the net cages, saving time and effort. Attached Figure Description

[0026] Figure 1 is a schematic diagram of a preferred embodiment of the fish fry high-efficiency cultivation facility provided by this utility model;

[0027] Figure 2 is a schematic diagram of the connection between the fastener and the float ring shown in this utility model;

[0028] Figure 3 is an enlarged structural schematic diagram of the part shown in Figure 2A of this utility model;

[0029] Figure 4 is a schematic diagram of the nutrient supply device shown in this utility model.

[0030] The following are labeled in the diagram: 1. Float ring; 2. Net cage; 3. Fixing component; 31. Rod body; 32. First connecting ring; 33. Second connecting ring; 34. Steel cable; 35. Hook; 4. Nutrient supply device; 41. Water pump; 42. Float; 43. Guide pipe; 44. Spray hole; 5. Plankton attracting light. Detailed Implementation

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0036] Please refer to Figures 1 to 4. This utility model provides a high-efficiency fish fry rearing facility, which includes:

[0037] Float 1, float 1 is shaped like a square, and a net cage 2 is placed inside float 1;

[0038] There are multiple fasteners 3, all of which are fixed to the float ring 1 at the corresponding corner positions. The net cage 2 is fixed to the fasteners 3 by means of suspension.

[0039] Nutrient supply device 4 includes a guide pipe 43, which is mounted on the net cage 2. The guide pipe 43 has a jet hole 44 on the outer circumference of the guide pipe 43 at a position corresponding to the net cage 2.

[0040] It should be noted that: In this device, the net cage 2 is the main container for holding aquaculture, which can be placed directly in the pond. A float ring 1 is also set on the outside of the net cage 2. Multiple fixing parts 3 are installed on the float ring 1. The net cage 2 can be installed on the fixing parts 3 by suspension to achieve the positioning of the net cage 2 and meet the normal use requirements.

[0041] Under the restriction and protection of the net cage 2, it is more conducive to the production of fish fry, and different kinds of fish fry can be cultivated at the same time, which improves the survival rate of fish fry and facilitates the subsequent harvesting of fish fry.

[0042] The nutrient supply device 4 includes a guide pipe 43 for supplying water from inside the pond. The guide pipe 43 is mounted on the net cage 2, and spray holes 44 are opened in the area corresponding to the net cage 2. That is, water drawn from inside the pond can be sprayed into the net cage 2. On the one hand, more plankton can be sprayed into the net cage 2 to supply food for the fish fry, and on the other hand, the oxygen content of the water in the area where the net cage 2 is located can be increased, which is more conducive to the growth of the fish fry.

[0043] In the embodiments of this utility model, please refer to Figures 2 and 3. The fixing member 3 includes a rod 31, which is vertically fixed to the float 1. A second connecting ring 33 is welded and fixed to the top of the rod 31. A steel cable 34 is threaded through the second connecting ring 33, and a hook 35 is fixed to the other end of the steel cable 34.

[0044] Meanwhile, the height of the water surface part of the net cage 2 is 30cm-50cm. A hole is also opened on the side of the net cage 2 near the top, and a metal ring is embedded and fixed inside the hole. The hook 35 is fastened inside the metal ring.

[0045] A first connecting ring 32 is also welded and fixed to the outer circumference of the rod 31. The first connecting ring 32 can be used to bind the rope for pulling and positioning the float 1.

[0046] It should be noted that: in the fastener 3, the rod 31 is fixed to the float 1, and a steel cable 34 is set on its top. The other end of the steel cable 34 has a hook 35, and there is a hole on the net cage 2. A metal ring is fixed inside the hole. The hook 35 can be fastened to the metal ring, so that the net cage 2 can be suspended. The setting of the metal ring can also reduce the damage to the net cage 2.

[0047] The first connecting ring 32 can be connected to a rope, which can be tied to the shore to position the net cage 2.

[0048] In an embodiment of this utility model, please refer to Figures 1 and 4. The nutrient supply device 4 also includes a water pump 41. A float 42 is installed on the water pump 41 so that the water pump 41 floats on the water surface. The water inlet of the water pump 41 extends into the water, and the guide pipe 43 is fixed to the output end of the water pump 41.

[0049] Among them, a plankton attracting lamp 5 is also fixed on the water pump 41.

[0050] It should be noted that: the water pump 41 is floated and fixed on the water surface by the float 42, and can directly draw water from the pond. The water flows through the guide pipe 43 and sprays out from the spray hole 44 to realize continuous water circulation inside the net cage 2.

[0051] The water pump 41 is also equipped with a plankton attracting lamp 5, which can attract plankton in the water and make the organisms concentrate near the water pump 41. Then, the plankton are guided into the net cage 2 by the water pump 41 and the guide pipe 43 for feeding the fish fry.

[0052] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0053] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-efficiency fish fry rearing facility, characterized in that, include: Float (1), the float (1) is shaped like a square, and a net cage (2) is placed inside the float (1); Fixing member (3), there are multiple fixing members (3), all of which are fixed on the float (1) and at the corresponding corner positions, the net cage (2) is fixed on the fixing member (3) by means of suspension; Nutrient supply device (4), the nutrient supply device (4) includes a guide pipe (43), the guide pipe (43) is mounted on the net cage (2), and there is a jet hole (44) on the outer circumference of the guide pipe (43) at the position corresponding to the net cage (2).

2. The high-efficiency fish fry rearing facility according to claim 1, characterized in that, The fixing component (3) includes a rod (31), which is vertically fixed to the float (1). A second connecting ring (33) is welded and fixed to the top of the rod (31). A steel cable (34) is threaded through the second connecting ring (33), and a hook (35) is fixed to the other end of the steel cable (34).

3. The high-efficiency fish fry rearing facility according to claim 2, characterized in that, The height of the part of the net cage (2) above the water surface is 30cm-50cm. A hole is also provided on the side of the net cage (2) near the top, and a metal ring is embedded and fixed inside the hole. The hook (35) is fastened inside the metal ring.

4. The high-efficiency fish fry rearing facility according to claim 2, characterized in that, A first connecting ring (32) is also welded and fixed to the outer circumference of the rod (31). The first connecting ring (32) can be used to bind the rope for pulling and positioning the float (1).

5. The high-efficiency fish fry rearing facility according to claim 1, characterized in that, The nutrient supply device (4) also includes a water pump (41), on which a float (42) is installed so that the water pump (41) floats on the water surface, and the water inlet of the water pump (41) extends into the water, and the guide pipe (43) is fixed to the output end of the water pump (41).

6. The high-efficiency fish fry rearing facility according to claim 5, characterized in that, The water pump (41) is also equipped with a plankton attracting lamp (5).