breeders raceway
By using PVC pipes and flexible metal reinforcements in the broodstock rearing pond, the problems of simulating the natural environment and protecting fish eggs in existing technologies have been solved, achieving high breeding efficiency and high seedling survival rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU GRANT ECOLOGICAL FISHERIES CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-29
AI Technical Summary
Existing broodstock rearing ponds are inadequate in simulating the natural environment, ensuring the safety of fish eggs, and providing ease of operation, resulting in low breeding efficiency and low fry survival rates.
A parent fish rearing pond was designed, including cement walls and a pond body, with PVC main pipes and drainage pipes inside. Algae are attached to the pipes to simulate a hiding place for parent fish to lay eggs. The pipes can be quickly installed by positioning nails, hooks and hanging holes. The cage is fixed with flexible metal bars to provide a safe spawning environment and protect the fish eggs.
It improves the safety of spawning in broodstock and the hatching rate of eggs, reduces the phenomenon of broodstock eating eggs, simplifies the operation process, and significantly improves breeding efficiency and fry survival rate.
Smart Images
Figure CN224291033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of broodstock pond technology, and in particular to broodstock rearing ponds. Background Technology
[0002] In modern aquaculture, artificial breeding is a crucial link in ensuring the supply of seedlings, achieving the selection of superior breeds, and ensuring sustainable production. The successful domestication and reproduction of broodstock (mature fish used for breeding) is the core starting point of this chain. Traditional artificial breeding processes typically rely on specially designed broodstock rearing ponds (or spawning ponds). However, current broodstock rearing pond designs still have many shortcomings in simulating the natural environment, ensuring the safety of fish eggs, and improving operational convenience, which restrict the improvement of breeding efficiency and seedling survival rates. These shortcomings are specifically manifested in the following aspects:
[0003] Artificial fish nests (spawning attachments) are ineffective and difficult to secure: Traditional spawning attachments (such as palm fiber, netting, plastic weeds, tiles, and ceramic pots) are often difficult to place stably or sink in pond water. They are easily displaced, float, or even capsize due to water flow or parent fish activity, failing to provide a safe and natural stable spawning environment for the parent fish. Fixing methods are mostly simple stacking, binding, or pressing, which are cumbersome and heavy, making it difficult to adjust their position. They cannot be flexibly and precisely deployed according to the spawning habits of different parent fish species (such as preference for pond corners, edges, or specific lighting conditions). Their materials, shapes, or surface characteristics may differ significantly from natural fish nests, which is detrimental to inducing successful spawning and effective attachment of eggs.
[0004] Inadequate protection of fish eggs leads to serious egg-eating by broodstock: Many farmed fish (such as carp, crucian carp, catfish, tilapia, and some ornamental fish) have broodstock that have the habit of consuming their own eggs or newly hatched fry. Existing ponds lack effective physical isolation and protection mechanisms. Temporarily added protective facilities (such as bamboo baskets, old nets, and silk screens) are generally not securely fixed, easily washed away by water currents, or pushed aside by broodstock, resulting in inconsistent protective effects.
[0005] The installation, dismantling, and cleaning of protective facilities are time-consuming and labor-intensive, affecting daily management efficiency and easily causing accidental damage to fragile fish eggs or fry during operation. Therefore, a new broodstock rearing pond is proposed to solve the above problems. Utility Model Content
[0006] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0007] Therefore, one objective of this utility model is to propose a parent fish rearing pond to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0008] To achieve the above objectives, one embodiment of the present invention provides a parent fish rearing pond, including a wall and a pond body. The pond body is fixedly connected to the front of the wall. Both the wall and the pond body are made of cement. A pipe clamp is fixedly connected to the front of the pond body. A main pipe is installed inside the pipe clamp. A drain pipe is fixedly connected to the front of the main pipe.
[0009] The bottom surface of the pool is sloping, and a water outlet pipe is fixedly connected to one side of the pool. A net is fixedly connected to the inner opening of the water outlet pipe.
[0010] Several positioning pins are fixedly connected to the edge of the bottom surface inside the pool, and a pipe is detachably connected to the edge of the inner side of the pool. The pipe has an open structure at both ends.
[0011] A hook is fixedly connected to the side of the pipe. The hook has a hanging hole. The hanging hole is movably connected to a positioning pin. The head of the positioning pin can pass through the end of the hanging hole.
[0012] A cage is inverted on the bottom surface of the pool body, and a metal rib is fixedly connected to the bottom of the inner side of the pool body. The metal rib is flexible, and the top of the metal rib is hooked to the edge of the top surface of the cage.
[0013] Preferably, of any of the above schemes, the wall and the pool are constructed as a single unit, and the pipe clamps are fixed to the front of the wall.
[0014] Using the above technical solution: This device is specifically designed for the domestication of broodstock fish. A main pipeline supplies water, and a drain pipe injects water into the pond. Water exits through an outlet pipe, and a net prevents fish from escaping.
[0015] The function of the pipes: They act as artificial fish nests, mimicking the secluded spawning grounds of parent fish in their natural environment (such as crevices in rocks or tree roots), providing a safe spawning environment. The rough surface or attached organisms (such as algae) inside the pipes help the fish eggs attach, reducing the risk of them being scattered by the water flow. The openings at both ends of the pipes create localized water flow channels, increasing dissolved oxygen levels in the water while preventing sediment buildup at the bottom, maintaining water quality, and providing a suitable environment for fish egg hatching.
[0016] The function of a cage: As an enclosed space, a cage isolates fish eggs and fish, preventing parent fish from eating the eggs or newly hatched fry due to their egg-eating habits. Metal ribs ensure the cage is securely fixed, preventing it from being swept away by water currents or knocked open by the parent fish.
[0017] Preferably, the main pipe and the drain pipe are made of PVC, and the port of the drain pipe faces the pool body.
[0018] The above technical solution comprises the following structural components: Main structure: The wall is constructed of cement masonry, with its front firmly connected to a pool body also made of cement. Both can be cast as a single piece. Pipe clamps (such as U-shaped clamps) are fixed to the front of the wall using steel nails or expansion bolts.
[0019] Water supply system: The main pipe (PVC material) is installed and fixed inside the pipe clamp. The front of the main pipe is connected to the drain pipe (PVC material), with the outlet of the drain pipe facing inward to the pool body, for continuously supplying fresh water to the pool body.
[0020] Drainage and Escape Prevention: The bottom of the pool is designed to slope, facilitating waste collection and water flow. A water outlet pipe is fixedly connected to a low position on one side of the pool. A stainless steel mesh is installed at the inner opening of the water outlet pipe (the water inlet on the inner side of the pool) with screws to effectively prevent parent fish or fry from escaping.
[0021] Artificial Fish Nest Module - Pipeline: The pipeline is a tubular structure (such as a PVC pipe section) open at both ends, simulating the hidden spawning sites of parent fish in the natural environment (such as rock crevices or tree roots). Algae can adhere to the inner wall of the pipeline, providing a rough surface for the fish eggs to attach and reducing water erosion. Its core installation structure consists of several sets of positioning nails (two nails per set) pre-embedded and fixed along the bottom edge of the inner side of the pool (near the bend in the pool wall). Hooks are fixed to the sides of the pipeline with screws. The hooks have specially shaped hanging holes. One end of the hanging hole is a larger opening, allowing the head (nail head) of the positioning nail to pass through; the other end of the hanging hole is a narrow, elongated groove or bayonet.
[0022] The principle behind the rapid pipe installation is as follows: During installation, align the open end of the hook hole on the hook with the head of the positioning pin and slide it over the hook. Then, move the pipe along the edge of the tank, causing the positioning pin to slide to the narrow, elongated end of the hook hole (the end of the groove) and be engaged. This design allows for rapid positioning and disassembly of the pipe at any location within the tank's inner edge, adapting to the spawning preferences of different parent fish. The openings at both ends of the pipe create water flow channels, increasing dissolved oxygen, flushing away sediment, and maintaining water quality in the spawning bed.
[0023] Fish egg protection module - cage: The cage is a PVC mesh structure cover that is placed upside down on the bottom of the pool, covering the spawning area (including the area below the pipes). Its function is to physically isolate the fish eggs from the parent fish, preventing the parent fish from eating the eggs or newly hatched fry.
[0024] The cage's quick positioning principle: A flexible carbon steel wire rib is pre-embedded in the bottom of the pool. After placing the cage in the predetermined position, simply bend the upper end of the rib (the opposite end of the pre-embedded end) downwards so that it hooks precisely onto the mesh or reinforcing rib on the top edge of the cage. This achieves quick and secure fixing of the cage, preventing it from being swept away by the water flow or pushed open by the parent fish.
[0025] Preferably, the material of the barrier net is stainless steel, and the barrier net is installed by screws.
[0026] Preferably, in any of the above solutions, the positioning pins are arranged in pairs, and the hook is connected to the pipe surface by screws.
[0027] The above technical solution is adopted:
[0028] The core structure of this device includes: positioning pins, pipes, hooks, hanging holes, cages, and metal reinforcement. The pipes, which provide a better spawning environment for the parent fish, and the cages, which protect the eggs, can be installed relatively easily. Specifically, hooks with hanging holes are fixedly connected to the side of the pipes. After the positioning pins are hooked into the hanging holes, moving the hooks moves the positioning pins to the other end of the hanging holes, allowing for quick installation of the pipes at any point along the inner edge of the pool. The operation is extremely simple.
[0029] After the cage is placed on the bottom of the pond, the cage, together with the pre-embedded flexible metal bars, can be quickly positioned and fixed, effectively protecting the fish eggs from being eaten by the parent fish, and significantly improving the hatching rate and the survival rate of the fry.
[0030] Preferably, in any of the above embodiments, the inner wall of the pipe is covered with algae, the cage is made of PVC, the metal ribs are specifically carbon steel wire, and the metal ribs are embedded in the bottom of the pool.
[0031] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0032] This broodstock rearing pond, through the coordinated setup of positioning nails, pipes, hooks, hanging holes, cages, and metal reinforcements, allows for easy installation of pipes that provide a better spawning environment for the broodstock and cages that protect the eggs. Specifically, hooks with hanging holes are fixedly connected to the side of the pipes. After the positioning nails are hung in the hanging holes, the hooks are moved to move the positioning nails to the other end of the hanging holes, enabling quick installation of the pipes at any point on the inner edge of the pond. The operation is extremely simple.
[0033] After the cage is placed on the bottom of the pond, the cage, together with the pre-embedded flexible metal bars, can be quickly positioned and fixed, effectively protecting the fish eggs from being eaten by the parent fish, and significantly improving the hatching rate and the survival rate of the fry.
[0034] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0035] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0036] Figure 1This is a first-view structural schematic diagram of the present invention;
[0037] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;
[0038] Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective;
[0039] Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.
[0040] In the diagram: 1-wall, 2-pool, 3-pipe clamp, 4-main pipe, 5-drainage pipe, 6-outlet pipe, 7-net, 8-positioning nail, 9-pipe, 10-hook, 11-hanging hole, 12-cage, 13-metal reinforcement. Detailed Implementation
[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0043] like Figure 1-4 As shown, this parent fish rearing pond includes a wall 1 and a pond 2. The pond 2 is fixedly connected to the front of the wall 1. Both the wall 1 and the pond 2 are made of cement. A pipe clamp 3 is fixedly connected to the front of the pond 2. A main pipe 4 is installed inside the pipe clamp 3. A drain pipe 5 is fixedly connected to the front of the main pipe 4.
[0044] The bottom surface of the pool body 2 is inclined, and a water outlet pipe 6 is fixedly connected to one side of the pool body 2. A net 7 is fixedly connected to the inner opening of the water outlet pipe 6.
[0045] Several positioning nails 8 are fixedly connected to the edge of the bottom inner side of the pool body 2, and a pipe 9 is detachably connected to the edge of the inner side of the pool body 2. The pipe 9 has an open structure at both ends.
[0046] A hook 10 is fixedly connected to the side of the pipe 9. The hook 10 has a hanging hole 11. The hanging hole 11 is movably connected to the positioning nail 8. The head of the positioning nail 8 can pass through the end of the hanging hole 11.
[0047] A cage 12 is inverted on the bottom surface inside the pool body 2. A metal rib 13 is fixedly connected to the bottom inside the pool body 2. The metal rib 13 is flexible and its top end is hooked to the edge of the top surface of the cage 12.
[0048] Example 1: Wall 1 and pool 2 are constructed as a single unit, with pipe clamps 3 nailed to the front of wall 1. The main pipe 4 and drain pipe 5 are made of PVC, with the end of drain pipe 5 facing pool 2. The mesh screen 7 is made of stainless steel and is installed with screws. Positioning nails 8 are placed in pairs, and hooks 10 are connected to the surface of pipe 9 with screws.
[0049] Example 2: This device is specifically designed for the domestication of broodstock fish. The main pipe 4 supplies water, and the drain pipe 5 fills the pond 2 with water. The outlet pipe 6 discharges water, and the net 7 prevents fish from escaping.
[0050] The function of pipe 9: It acts as an artificial fish nest, simulating the secluded spawning grounds of parent fish in the natural environment (such as rock crevices or tree roots), providing a safe spawning environment. The rough surface or attached materials (such as algae) inside pipe 9 help the fish eggs attach, reducing the risk of them being scattered by the water flow. The openings at both ends of pipe 9 create localized water flow channels, increasing dissolved oxygen levels in the water while preventing sediment buildup at the bottom, maintaining water quality, and providing a suitable environment for fish egg hatching.
[0051] The function of cage 12: Cage 12 serves as an enclosed space, isolating fish eggs and fish, preventing parent fish from eating the eggs or newly hatched fry due to their egg-eating habits. Metal ribs 13 quickly position cage 12 to ensure its stability, preventing it from being swept away by water currents or knocked open by the parent fish.
[0052] The working principle of this utility model is as follows:
[0053] Water Injection and Circulation: External water is supplied through the main pipe 4 and injected into the pool 2 through the drain pipe 5. Guided by the inclined pool bottom, the water carries waste and flows towards the outlet pipe 6, which is equipped with a screen 7, and is finally discharged outside the pool, forming a continuous water exchange.
[0054] Spawning Environment Creation: Parent fish move within pond 2. Pipe 9, acting as an artificial nest, provides the parent fish with a sense of security, and its biomimetic environment and algae encourage them to enter and spawn. The open structure at both ends ensures water flow through pipe 9, maintaining high dissolved oxygen levels and flushing away metabolic waste.
[0055] Spawning and attachment: The parent fish spawn inside or below pipe 9, and the eggs attach to the inner wall of pipe 9 or the bottom of the pool (below pipe 9).
[0056] Egg protection: Once spawning is complete, quickly invert the cage 12 to cover the spawning area. Bend the upper end of the pre-embedded metal rib 13 and hook it onto the top edge of the cage 12 to secure it. This physical barrier effectively prevents the parent fish from contacting the eggs.
[0057] Hatching and Frying: Fish eggs hatch safely under the protection of cage 12. Initially, the hatched fry are also protected by cage 12. If necessary, cage 12 can be removed by bending the metal reinforcing bar 13 in the opposite direction. Pipe 9 can also be easily removed for cleaning or replacement via hook 10 and sliding along positioning pin 8.
[0058] Device structure: Main structure: Wall 1 is constructed of cement masonry, and its front is firmly connected to pool 2, which is also made of cement. The two can be cast as a single piece. Pipe clamps 3 (such as U-shaped clamps) are fixed to the front of wall 1 with steel nails or expansion bolts.
[0059] Water supply system: The main pipe 4 (PVC material) is installed and fixed inside the pipe clamp 3. The front of the main pipe 4 is connected to the drain pipe 5 (PVC material), and the outlet of the drain pipe 5 faces the inside of the pool body 2, which is used to continuously supply fresh water to the pool body 2.
[0060] Drainage and Escape Prevention: The bottom of the pool body 2 is designed to be sloping to facilitate waste collection and water flow. A water outlet pipe 6 is fixedly connected to one side of the pool body 2 at a low position. A stainless steel mesh 7 is fixedly installed at the inner opening of the water outlet pipe 6 (the water inlet on the inner side of the pool) with screws to effectively prevent parent fish or fry from escaping.
[0061] Artificial Fish Nest Module - Pipe 9: Pipe 9 is a tubular structure (such as a PVC pipe section) open at both ends, simulating a secluded spawning ground for parent fish in the natural environment (such as rock crevices or tree roots). Algae can adhere to the inner wall of pipe 9, providing a rough surface for the fish eggs to attach and reducing water erosion. Its core installation structure consists of several sets of positioning nails 8 (two nails per set) pre-embedded and fixed at the inner bottom edge of the pool body 2 (near the bend in the pool wall). Hooks 10 are fixed to the side of pipe 9 by screws. Hooks 10 have hooks 11 of a specific shape. One end of the hook 11 is a larger opening, allowing the head (nail head) of the positioning nail 8 to pass through; the other end of the hook 11 is a narrow, elongated groove or bayonet.
[0062] The principle of quick installation of pipe 9: During installation, align the open end of the hanging hole 11 on the hook 10 with the head of the positioning pin 8 and slip it over it. Then, move pipe 9 along the edge of the pool body 2, causing the positioning pin 8 to slide to the narrow, elongated end (the end of the groove) of the hanging hole 11 and be locked in place. This design allows pipe 9 to be quickly positioned and disassembled at any location on the inner edge of the pool body 2, adapting to the spawning preferences of different parent fish. The openings at both ends of pipe 9 form water flow channels, which can increase internal dissolved oxygen, flush away sediment, and maintain the water quality of the spawning bed.
[0063] Fish egg protection module - Cage 12: Cage 12 is a PVC mesh structure cover that is placed upside down on the bottom surface inside the pool body 2, covering the spawning area (including the area below pipe 9). Its function is to physically isolate the fish eggs from the parent fish, preventing the parent fish from eating the fish eggs or newly hatched fry.
[0064] The principle of rapid positioning of cage 12: A flexible carbon steel wire metal rib 13 is pre-embedded in the bottom of the inner side of the pool body 2. After the cage 12 is placed in the predetermined position, simply bend the upper end of the metal rib 13 (i.e., the other end opposite the pre-embedded end) downward so that it hooks precisely onto the mesh or reinforcing rib on the top edge of the cage 12. This achieves rapid and secure fixation of the cage 12, preventing it from being swept away by the water flow or pushed open by the parent fish.
[0065] Compared with the prior art, the present invention has the following advantages:
[0066] This broodstock rearing pond, through the coordinated setup of positioning nails 8, pipes 9, hooks 10, hanging holes 11, cages 12, and metal ribs 13, allows for relatively easy installation of the pipes 9, which provide a better spawning environment for the broodstock, and the cages 12, which provide protection for the fish eggs. Specifically, the side of the pipe 9 is fixedly connected to a hook 10 with a hanging hole 11. After the positioning nail 8 is hung in the hanging hole 11, the hook 10 is moved to move the positioning nail 8 to the other end of the hanging hole 11, enabling the pipe 9 to be quickly installed at any point on the inner edge of the pond body 2. The operation is extremely simple.
[0067] After the cage 12 is attached to the bottom of the pool body 2, the cage 12, together with the pre-embedded flexible metal ribs 13, can achieve rapid positioning and fixation, effectively protect the fish eggs from being eaten by the parent fish, and significantly improve the hatching rate and seedling survival rate.
Claims
1. A broodstock rearing pond, characterized in that, It includes a wall and a pool. The pool is fixedly connected to the front of the wall. Both the wall and the pool are made of cement. A pipe clamp is fixedly connected to the front of the pool. A main pipe is installed inside the pipe clamp. A drain pipe is fixedly connected to the front of the main pipe. The bottom surface of the pool is sloping, and a water outlet pipe is fixedly connected to one side of the pool. A net is fixedly connected to the inner opening of the water outlet pipe. Several positioning pins are fixedly connected to the edge of the bottom surface inside the pool, and a pipe is detachably connected to the edge of the inner side of the pool. The pipe has an open structure at both ends. A hook is fixedly connected to the side of the pipe. The hook has a hanging hole. The hanging hole is movably connected to a positioning pin. The head of the positioning pin can pass through the end of the hanging hole. A cage is inverted on the bottom surface of the pool body, and a metal rib is fixedly connected to the bottom of the inner side of the pool body. The metal rib is flexible, and the top of the metal rib is hooked to the edge of the top surface of the cage.
2. The broodstock rearing pond as described in claim 1, characterized in that: The wall and pool are constructed as a single unit, and the pipe clamps are nailed to the front of the wall.
3. The broodstock rearing pond as described in claim 2, characterized in that: The main pipe and drain pipe are made of PVC, and the port of the drain pipe faces the pool body.
4. The broodstock rearing pond as described in claim 3, characterized in that: The barrier is made of stainless steel and is installed using screws.
5. The broodstock rearing pond as described in claim 4, characterized in that: The positioning pins are arranged in pairs, and the hooks are connected to the surface of the pipe by screws.
6. The broodstock rearing pond as described in claim 5, characterized in that: The inner wall of the pipe is covered with algae, the cage is made of PVC, and the metal ribs are specifically carbon steel wires, which are embedded in the bottom of the pool.