Fry culture pond
By adopting the combined structure of the upper and lower networks and the design of sewage discharge nets and partition nets in the fry breeding pond, the problem of triploid rainbow trout fry escape is solved, and effective escape prevention and ecological protection of fry is achieved.
Patent Information
- Application Number
- CN202421186422.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-05-08
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-28
AI Technical Summary
Triploid rainbow trout fry frequently escapes in aquaculture pools, resulting in economic losses and ecosystem disorders. It is difficult for traditional single-layer mesh to effectively prevent young fry from escaping.
A fish fry breeding pond was designed, using a combined structure of upper and lower networks, combining sewage discharge nets and partition nets to ensure that the fry cannot escape from the inlet and outlet ports. By setting up the grid size difference and inclination of the upper and lower networks The structure prevents the fry from jumping out of the pool, and at the same time, the inner and outer layer nets and lift baskets are installed at the outlet to intercept the fry.
Effectively prevent fish fry from escaping, reduce economic losses, protect the ecosystem, and provide a suitable growth environment.
Smart Images
Figure CN222322523U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a breeding system, in particular to a fry breeding pond. Background Art
[0002] Triploid rainbow trout are widely welcomed by the aquaculture industry due to their high commercial value and fast growth rate. However, in the production and breeding environment, the frequent escape of young fish causes serious economic losses. On the other hand, due to the strong survival ability and adaptability of triploid rainbow trout to the environment, it may become a potential invasive species, interfering with the local ecosystem and competing with native species.
[0003] The traditional measure to prevent fish from escaping is to set up a single layer of mesh on the pond, but for smaller fry (5-6cm in size), the risk of escape is still significant. If young fish escape, it will not only cause economic losses, but there is still the possibility of affecting the local ecosystem. Utility Model Content
[0004] Aiming at the technical problem that young fish fry escape from the aquaculture pond in the prior art, the utility model provides a fish fry aquaculture pond which has the advantage of preventing the fish fry from escaping.
[0005] The technical solution of the utility model is:
[0006] A fish fry breeding pond, comprising:
[0007] A pool having a water inlet at one end and a water outlet at the other end;
[0008] The upper net is obliquely arranged on the top of the pool and is arranged around the pool, and the middle part of the upper net is a hollow structure;
[0009] A lower net is located below the upper net, the mesh size of the lower net is larger than the mesh size of the upper net, and the lower net is located above the liquid surface of the pool;
[0010] A sewage drain net is arranged at the water outlet of the water pool;
[0011] A separation net is arranged at the water inlet of the pool.
[0012] Optionally, it also includes:
[0013] The backwashing device is arranged in the water inlet of the water pool.
[0014] Optionally, the sewage drainage network comprises:
[0015] An inner layer net is arranged at the water outlet;
[0016] The lifting basket is located outside the pool, with two through structures on both sides and one side attached to the inner net;
[0017] The outer net is arranged on the other side of the lifting basket in parallel with the inner net, and the mesh size of the outer net is smaller than the mesh size of the inner net.
[0018] Optionally, the mesh size of the outer mesh is smaller than the mesh size of the lower mesh.
[0019] Optionally, the length of the water outlet is equal to the length of the end of the pool, and a fence is provided on the water outlet;
[0020] The inner layer net is arranged on the fence.
[0021] Optionally, the mesh size of the inner mesh is equal to the mesh size of the lower mesh.
[0022] Optionally, one side of the upper net is connected to the edge of the top of the pool, and the other side of the upper net is inclined upward.
[0023] Optionally, the mesh size of the lower mesh is greater than or equal to twice the mesh size of the upper mesh;
[0024] The mesh size of the upper net is equal to the mesh size of the partition net.
[0025] Optionally, the mesh size of the upper mesh is less than or equal to 2 mm.
[0026] Optionally, the water inlet is located at the top of one end of the pool, and the water outlet is located at the bottom of the other end of the pool.
[0027] Compared with the prior art, the beneficial effects of the utility model are:
[0028] A water inlet and a water outlet are arranged on the pool to form a water flow, thereby providing the fry in the pool with a normal growth environment that meets the requirements.
[0029] An inclined upper net is set in the pond to cover the edge of the top of the pond. The larger fry in the pond can only move below the lower net, while the smaller fry can pass through the lower net. By setting up the upper net, the smaller fry can be prevented from jumping out of the pond.
[0030] A sewage net is set at the outlet and a separation net is set at the water inlet to prevent the fry from escaping from the outlet and water inlet.
[0031] Through this technical solution, the escape of fry from the pond can be effectively prevented, thereby improving the economic effect and indirectly protecting the local ecosystem. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0033] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;
[0034] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .
[0035] Figure 3 It is a schematic diagram of the end structure of the lifting basket. DETAILED DESCRIPTION
[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0038] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0039] Example:
[0040] See also Figure 1 and Figure 2A fish fry breeding pond includes a water pond 1, an upper net 2, a lower net 3, a sewage net and a separation net (not shown in the figure). Specifically, the water pond 1 is a rectangular structure, and the water pond 1 is generally formed by digging on the ground. A water inlet is provided at one end of the water pond 1, and a water outlet is provided at the other end. The water inlet is located at the top of the water pond 1, and the water outlet is located at the bottom of the water pond 1. Water is supplied into the water pond 1 through the water inlet, and the water in the water pond 1 is discharged through the water outlet, forming a water flow in the water pond 1, providing the fish fry in the water pond 1 with normal growth environment conditions that meet the requirements.
[0041] An upper net 2 and a lower net 3 are arranged on the pool 1, wherein the upper net 2 is arranged on the edge of the top of the pool 1 and is arranged around the pool 1, and the upper net 2 is inclined at the top of the pool 1, and the side of the upper net 2 away from the edge of the pool 1 is inclined upward toward the middle of the pool 1, and the lower net 3 is arranged above the liquid level of the pool 1 and is located above the liquid level of the pool 1, and there is a gap between the upper net 2 and the lower net 3. The upper net 2 is arranged on the top of the pool 1 to cover the edge of the top of the pool 1 to prevent the fry in the pool 1 from jumping out of the top of the pool 1.
[0042] In this embodiment, the mesh size of the upper net 2 is smaller than the mesh size of the lower net 3, so that the larger fry in the pool 1 can only move below the lower net 3, while the smaller fry can pass through the lower net 3. Therefore, by setting the upper net 2, the smaller fry can be prevented from jumping out of the pool 1.
[0043] Since fish feed needs to be thrown into the pool 1, the mesh size of the lower net 3 is larger than the mesh size of the upper net 2 to prevent the fish feed from being blocked by the lower net 3. If the lower net 3 is not provided, the larger fry will jump out from the edge of the upper net 2 due to their strong jumping ability. If the width of the upper net 2 is increased, it will increase the difficulty of throwing the fish feed.
[0044] The sewage net is arranged on the water outlet of the pool 1, and the separation net is arranged on the water inlet of the pool 1 to prevent the fry from escaping from the water outlet and the water inlet. This technical solution can effectively prevent the fry from escaping from the pool 1, thereby improving the economic effect and indirectly protecting the local ecosystem.
[0045] In one specific embodiment:
[0046] The entire culture pond also includes a backwashing device (not shown in the figure), which is arranged on the water inlet of the pool 1 and located upstream of the partition net. The backwashing device can flush the partition net to prevent debris from adhering to the partition net and affecting the water flow.
[0047] Among them, the backwashing device belongs to the prior art.
[0048] In another specific embodiment:
[0049] See also Figure 1-Figure 3 The sewage net includes an inner net 4, an outer net 5 and a lifting basket 6. Specifically, the inner net 4 is arranged on the water outlet of the pool 1, the length of the lifting basket 6 is equal to the length of the inner net 4, both sides of the lifting basket 6 are through structures, the lifting basket 6 is located outside the pool 1, and one side of the lifting basket 6 is close to the inner net 4.
[0050] The outer net 5 is arranged outside the pool 1, and is arranged parallel to the inner net 4. The outer net 5 is arranged on a side of the lifting basket 6 away from the inner net 4. The mesh size of the outer net 5 is smaller than the mesh size of the inner net 4.
[0051] Preferably, a pull rod 7 is provided at each end of the lifting basket 6, and the pull rod 7 is arranged along the depth direction of the pool 1. At the same time, the bottom end of the pull rod 7 is rotatably connected to the end of the lifting basket 6, and the rotational connection between the pull rod 7 and the lifting basket 6 is close to the inner layer net 4.
[0052] In this embodiment, by setting the inner net 4, it is possible to prevent larger fry from entering the lifting basket 6, but smaller debris will pass through the inner net 4, so the outer net 5 and the lifting basket 6 are set to intercept the debris passing through the inner net 4 on the one hand, and intercept the fry passing through the inner net 4 on the other hand, and in the process of cleaning the debris in the lifting basket 6, the fry in the lifting basket 6 can be put into the position away from the water outlet of the pool 1. In addition, by pulling the pull rod 7 upward, the lifting basket 6 is rotated under the action of gravity, so that the side originally close to the inner net 4 is facing upward, thereby preventing the small fish and debris in the lifting basket 6 from being poured out.
[0053] Preferably, the length of the water outlet is equal to the length of the end of the pool 1, and a fence is provided on the water outlet. The inner net 4 is provided on the fence. The inner net 4 is supported by the fence to reduce the impact force on the inner net 4. Generally, the inner net 4 is fixed to the fence using materials such as cable ties or wires.
[0054] In another specific embodiment:
[0055] The mesh size of the outer net 5 is smaller than that of the lower net 3, and the mesh size of the inner net 4 is equal to that of the lower net 3. The mesh size of the lower net 3 is greater than or equal to twice that of the upper net 2, and the mesh size of the upper net 2 is equal to that of the spacer net.
[0056] Generally speaking, the inner net 4, the outer net 5, the upper net 2, the lower net 3 and the separator are all made of UV-resistant and corrosion-resistant high-density polyethylene (HDPE) material. The mesh size of the upper net 2 and the outer net 5 is less than or equal to 2 mm to prevent juvenile fish less than 5 cm from escaping. The mesh size of the lower net 3 and the inner net 4 is less than or equal to 4 mm to prevent juvenile fish of 5-6 cm from escaping.
[0057] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A fry breeding pond, characterized in that: include: A pool having a water inlet at one end and a water outlet at the other end; The upper net is obliquely arranged on the top of the pool and is arranged around the pool, and the middle part of the upper net is a hollow structure; A lower net is located below the upper net, the mesh size of the lower net is larger than the mesh size of the upper net, and the lower net is located above the liquid surface of the pool; A sewage drain net is arranged at the water outlet of the water pool; A separation net is arranged at the water inlet of the pool.
2. The fry culture pond according to claim 1, characterized in that: Also includes: The backwashing device is arranged in the water inlet of the water pool.
3. The fry culture pond according to claim 2, characterized in that: The sewage discharge network comprises: An inner layer net is arranged at the water outlet; The lifting basket is located outside the pool, with two through structures on both sides and one side attached to the inner net; The outer net is arranged on the other side of the lifting basket in parallel with the inner net, and the mesh size of the outer net is smaller than the mesh size of the inner net.
4. The fry culture pond according to claim 3, characterized in that: The mesh size of the outer layer mesh is smaller than the mesh size of the lower layer mesh.
5. The fry culture pond according to claim 3, characterized in that: The length of the water outlet is equal to the length of the end of the pool, and a fence is provided on the water outlet; The inner layer net is arranged on the fence.
6. The fry culture pond according to claim 3, characterized in that: The mesh size of the inner layer mesh is equal to the mesh size of the lower layer mesh.
7. The fry culture pond according to claim 1, characterized in that: One side of the upper net is connected to the edge of the top of the pool, and the other side of the upper net is arranged to be inclined upward.
8. The fry culture pond according to claim 1, characterized in that: The mesh size of the lower mesh is greater than or equal to twice the mesh size of the upper mesh; The mesh size of the upper net is equal to the mesh size of the partition net.
9. The fry culture pond according to claim 1, characterized in that: The mesh size of the upper mesh is less than or equal to 2 mm.
10. The fry culture pond according to claim 1, characterized in that: The water inlet is located at the top of one end of the pool, and the water outlet is located at the bottom of the other end of the pool.