Freshwater snail single culture device and method

Abstract

The invention discloses a freshwater snail single breeding device which comprises a first shell and a second shell, the first shell and the second shell are buckled to form a breeding cavity, a plurality of water through holes are evenly distributed in the first shell and the second shell, the size of each water through hole is smaller than the shell width of the bred freshwater snails, and the shell width of each water through hole is larger than the shell width of the bred freshwater snails. A locking mechanism is arranged at the buckling position of the first shell and the second shell. The invention further discloses a freshwater snail single culture method. The freshwater snail breeding device has the advantages that freshwater snails can be conveniently harvested while single freshwater snail breeding is achieved, 'young snails' can be produced, the labor intensity of workers is greatly reduced, and operation is easy, convenient and fast. Meanwhile, the size of a single culture device is small, the water culture size is greatly reduced, the device can be recycled, and the cost is indirectly saved.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture, and in particular to a device and method for single cultivation of freshwater snails. Background Art

[0002] Common commercial freshwater snails include species of the genus Anilophora (square-shaped, pear-shaped, copper-rusted, and painted) and species of the genus Ostreus (Northeastern, Chinese, and spherical), often collectively referred to as snails, stone snails, and water snails. Species of the genera Anilophora and Ostreus are widely distributed throughout China, boast high production volumes, and are versatile. They serve as a key food source for aquatic animals such as black carp, broad-bodied leeches, Chinese mitten crabs, and soft-shelled turtles, as well as for some waterfowl. They are also a popular aquatic product for the general public, and are therefore attracting increasing attention. As a crucial component of freshwater ecosystems, freshwater snails act as both consumers and decomposers, filtering plankton and licking organic debris from the environment. They play a vital role in controlling organic matter deposition in aquatic environments and maintaining wetland functions.

[0003] The downstream industries of freshwater snail aquaculture include processing, catering, and the cultivation of high-value aquatic products as bait. In particular, the food processing and catering industries demand the nutritional and palatable properties of freshwater snails. Breeding and mating can result in the presence of juvenile snails or fertilized eggs, which can affect the taste. Producing "juvenile-free" snails can improve their taste and edible quality, enhancing their market competitiveness. Farmers can segment and position their freshwater snails based on whether they contain juvenile snails and develop corresponding marketing strategies to improve economic efficiency.

[0004] Because freshwater snails conceive a large number of offspring after mating, manually raising them individually in large batches requires a significant amount of manpower and effort, increasing the cost of handling the snails. Currently, there is no equipment specifically designed for individually raising freshwater snails. Summary of the Invention

[0005] In response to the current technical problems, the present invention provides a device and method for single cultivation of freshwater snails to solve the problems in the prior art.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: A single freshwater snail breeding device includes a first shell and a second shell. The first shell and the second shell are fastened together to form a breeding chamber. The first shell and the second shell are both provided with a plurality of water holes. The size of the water holes is smaller than the shell width of the freshwater snail being cultured. A locking mechanism is provided at the fastening point of the first shell and the second shell.

[0007] Preferably, the first shell and the second shell are connected by an elastic connecting strip, and a groove is provided in the middle of the elastic connecting strip toward the side where it is bent.

[0008] Preferably, a threading ring is provided on the first shell or the second shell.

[0009] The solution provides a threading ring, and when in use, a rope is passed through the threading ring to fix the breeding device or place it in a floating cage.

[0010] Preferably, the locking mechanism includes a receiving portion and / or an inserting portion provided on the first shell, and an inserting portion and / or a receiving portion provided on the second shell and corresponding to the receiving portion and / or inserting portion on the first shell.

[0011] In this solution, the first shell and the second shell are locked by cooperating with the receiving portion and the plug-in portion.

[0012] Preferably, the receiving portion is provided with a socket, and the plug-in portion is provided with a protrusion that can be plugged and matched with the socket at a corresponding position.

[0013] In this solution, when the first shell and the second shell are buckled together, the protrusion on the plug-in portion is inserted into the plug hole on the receiving portion, thereby achieving locking of the first shell and the second shell.

[0014] Preferably, the first shell and the second shell are hemispherical structures or hemispherical structures of the same size.

[0015] In this solution, the first shell and the second shell are buckled together to form a spherical or ellipsoidal shape.

[0016] Preferably, the water hole is one of circular, rectangular, square, pentagonal, hexagonal and rhombus-shaped.

[0017] A method for individual freshwater snail cultivation, using the aforementioned individual freshwater snail cultivation device, comprises the following steps: S1. Loading juvenile freshwater snails into a breeding cavity formed by fastening the first shell 1 and the second shell 2 of the juvenile snail breeding device, with one juvenile snail placed in each breeding cavity. The water holes 3 on the first shell 1 and the second shell 2 of the juvenile snail breeding device are smaller than the shell width of the juvenile snail. S2, buckling the first shell 1 and the second shell 2 of the juvenile snail breeding device together and locking them through the locking mechanism; S3, taking a rope to fix the juvenile snail breeding device or place it in a floating cage; S4, placing the young snail breeding device fixed in step S3 in a pond for breeding, and raising them until sexual maturity; S5, transferring the sexually mature freshwater snails from the juvenile snail breeding device in step S4 to an adult snail breeding device, wherein the water holes 3 on the first shell 1 and the second shell 2 of the adult snail breeding device are smaller than the shell width of the adult snail; S6, buckling the first shell 1 and the second shell 2 of the snail breeding device together and locking them using the locking mechanism; S7. Take a rope and fix the snail culture device or place it in a floating cage; S8. Place the snail cultivation device fixed in step S7 in a pond for cultivation until harvest.

[0018] Preferably, the arrangement density of the floating cages is 8 to 10 per mu.

[0019] Preferably, the placement density of a single freshwater snail breeding device in the floating cage is 2000-2500 snails / m 3 .

[0020] Compared with existing technologies, the present invention has the following advantages: it allows for individual cultivation of freshwater snails while facilitating their harvest, significantly reducing labor intensity and offering simple and convenient operation. Furthermore, the individual cultivation devices are relatively small, significantly reducing the required water volume. The devices are also recyclable, indirectly saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention; Figure 2 for Figure 1 A schematic structural diagram of the first shell and the second shell after unfolding; Figure 3 for Figure 1 A schematic structural diagram of the first shell in FIG. Figure 4 for Figure 1 A schematic structural diagram of the second shell in FIG. Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present invention; Figure 6 for Figure 5 A schematic structural diagram of the first shell and the second shell after unfolding; Figure 7 for Figure 5 A schematic structural diagram of the first shell in FIG. Figure 8 for Figure 5 Schematic diagram of the structure of the second shell. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, this should not be understood as limiting the scope of the present invention to the following embodiments, and all technologies implemented based on the present invention fall within the scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0024] Example 1 As attached Figure 1 -Attached Figure 4 A device for cultivating individual freshwater snails is shown. In this embodiment, the device is a juvenile snail cultivation device and includes a first shell 1 and a second shell 2. The first shell 1 and the second shell 2, when engaged, form a cultivation chamber. The first shell 1 and the second shell 2 are hemispherical structures of equal size. Thus, the cultivation chamber formed by the engagement of the first shell 1 and the second shell 2 is a spherical cultivation chamber. The diameter of the cultivation chamber of the juvenile snail cultivation device is 4.0-6.0 cm. Of course, the first shell 1 and the second shell 2 can also be hemispherical structures of equal size. The first shell 1 and the second shell 2 are made of one of polyethylene (PE), polypropylene (PP), polypropylene (PS), polyester fiber, and the like. These materials are durable, recyclable, and cost-effective.

[0025] The first shell 1 and the second shell 2 are connected by an elastic connecting strip 7. A groove 701 is formed in the middle of the elastic connecting strip 7 toward the curved side. A threading ring 6 is provided on the first shell 1 or the second shell 2. The threading hole 6 can be circular, square, or diamond-shaped.

[0026] There are multiple water holes 3 distributed on the first shell 1 and the second shell 2. In this embodiment, the size of the water holes 3 is smaller than the shell width of the young snail. The water holes 3 are one of the shapes of circle, rectangle, square, pentagon, hexagon, and diamond. A locking mechanism is provided at the buckling point of the first shell 1 and the second shell 2.

[0027] In this embodiment, the locking mechanism includes a receiving portion 4 and / or an inserting portion 5 provided on the first housing 1, and an inserting portion 5 and / or a receiving portion 4 provided on the second housing 2 to correspond to and mate with the receiving portion 4 and / or inserting portion 5 on the first housing 1. The receiving portion 4 is provided with an insertion hole 401, and the inserting portion 5 is provided with a protrusion 501 that can be inserted and mated with the insertion hole 401 at a corresponding position. The number and position of the receiving portions 4 / inserting portions 5 on the first housing 1 correspond to the number and position of the inserting portions 5 / receiving portions 4 on the second housing 2. That is, only the receiving portion 4 or the plug-in portion 5 can be provided on the circumference of the first shell 1, or both the receiving portion 4 and the plug-in portion 5 can be provided. When only the receiving portion 4 or the plug-in portion 5 is provided on the circumference of the first shell 1, only the plug-in portion 5 or the receiving portion 4 is provided on the corresponding second shell 2, so as to correspond; when both the receiving portion 4 and the plug-in portion 5 are provided on the first shell 1, both the plug-in portion 5 and the receiving portion 4 are also provided on the corresponding second shell 2.

[0028] Example 2 As attached Figure 5 -Attached Figure 8 A device for cultivating individual freshwater snails is shown. This device is for cultivating adult snails and includes a first shell 1 and a second shell 2. The first shell 1 and the second shell 2, when engaged, form a cultivation chamber. Multiple water holes 3 are distributed on each of the first shell 1 and the second shell 2. The water holes 3 are in a shape selected from the group consisting of circular, rectangular, square, pentagonal, hexagonal, and rhombus shapes. In this embodiment, the size of the water holes 3 is smaller than the shell width of the adult snail. The first shell 1 and the second shell 2 are hemispherical structures of the same size. Thus, the cultivation chamber formed when the first shell 1 and the second shell 2 are engaged is a spherical cultivation chamber. The diameter of the cultivation chamber of the adult snail cultivation device is 5.0-7.0 cm. The first shell 1 and the second shell 2 are made of a material selected from the group consisting of polyethylene (PE), polypropylene (PP), polypropylene (PS), polyester fiber, and the like.

[0029] The first shell 1 and the second shell 2 are connected by an elastic connecting strip 7. A groove 701 is formed in the middle of the elastic connecting strip 7 toward the curved side. A threading ring 6 is provided on the first shell 1 or the second shell 2. The threading hole 6 can be circular, square, or diamond-shaped.

[0030] A locking mechanism is provided at the joint between the first shell 1 and the second shell 2. In this embodiment, the locking mechanism comprises a receiving portion 4 and / or an inserting portion 5 provided on the first shell 1, and an inserting portion 5 and / or a receiving portion 4 provided on the second shell 2, corresponding to and mating with the receiving portion 4 and / or inserting portion 5 on the first shell 1. The receiving portion 4 is provided with a socket 401, and the inserting portion 5 is provided with a protrusion 501 that can be plugged into and mated with the socket 401 at a corresponding position. The number and position of the receiving portions 4 / inserting portions 5 on the first shell 1 correspond to those of the inserting portions 5 / receiving portions 4 on the second shell 2. That is, only the receiving portion 4 or the plug-in portion 5 can be provided on the circumference of the first shell 1, or both the receiving portion 4 and the plug-in portion 5 can be provided. When only the receiving portion 4 or the plug-in portion 5 is provided on the circumference of the first shell 1, only the plug-in portion 5 or the receiving portion 4 is provided on the corresponding second shell 2, so as to correspond; when both the receiving portion 4 and the plug-in portion 5 are provided on the first shell 1, both the plug-in portion 5 and the receiving portion 4 are also provided on the corresponding second shell 2.

[0031] A method for single breeding of freshwater snails, using Figures 1-8 The freshwater snail individual breeding device described in the invention comprises a juvenile snail breeding device and an adult snail breeding device, and the freshwater snail individual breeding method specifically comprises the following steps: S1. Put the freshwater snails into Figure 1 In the breeding cavity formed by buckling the first shell 1 and the second shell 2, a young snail is placed in each breeding cavity, and the size of the water hole 3 on the first shell 1 and the second shell 2 of the young snail breeding device is smaller than the shell width of the young snail; S2, buckling the first shell 1 and the second shell 2 of the juvenile snail breeding device together and locking them through the locking mechanism; S3. Take a rope and pass it through the threading hole 6 to fix or place the juvenile snail breeding device in a floating cage; the height of the floating cage is 1 meter to 1.5 meters, of which the part exposed above the water surface is 0.4 meters to 0.5 meters, and the underwater part is 0.6 meters to 1 meter. The arrangement density of the floating cage is 8 to 10 per mu, and the placement density of a single freshwater snail breeding device in the floating cage is 2000 to 2500 per m 3 , the mesh diameter of the floating cage is 2 cm to 4 cm, and the bottom of the cage does not contact the pond mud; S4, placing the young snail breeding device fixed in the step S3 in a pond for breeding, and breeding until sexual maturity; sexual maturity refers to the young snails from the age of 3 months after birth. If the young snails are placed in the breeding chamber too early, they will easily leak out of the water hole 3. If they are placed in the breeding chamber after the age of 3 months, some sexually mature snails will have completed mating, resulting in the failure of cultivating "no young snails"; S5, the freshwater snails of step S4 are transferred from the young snail breeding device to Figure 5In the adult snail breeding device shown in , the size of the water holes 3 on the first shell 1 and the second shell 2 of the adult snail breeding device is smaller than the shell width of the adult snail; S6, buckling the first shell 1 and the second shell 2 of the snail breeding device together and locking them using the locking mechanism; S7. Use a rope to fix or place the adult snail culture device in a floating cage. The height of the floating cage is 1 to 1.5 meters, with 0.4 to 0.5 meters above the water surface and 0.6 to 1 meter below the water surface. The density of the floating cages is 8 to 10 per mu. The density of a single freshwater snail culture device in the floating cage is 2,000 to 2,500 per m. 3 , the mesh diameter of the floating cage is 2 cm to 4 cm, and the bottom of the cage does not contact the pond mud; S8. Place the snail cultivation device fixed in step S7 in a pond for cultivation until harvest.

[0032] Repeat steps S1 to S8 several times, and place the fish in a pond, a cage in a pond, or a circulating water aquaculture tank for breeding.

[0033] This solution allows for the independent cultivation of freshwater snails from juveniles to adults. These snails are kept individually, preventing them from mating, and thus producing "juvenile-free" snails. This improves their taste and edible quality, enhancing their market competitiveness. Farmers can segment and position their freshwater snails based on whether they contain juveniles, and develop corresponding marketing strategies. For example, they could promote juvenile-free snails as specialty products to attract specific consumer groups, increase unit prices, and achieve greater economic benefits.

[0034] The above describes preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A single freshwater snail breeding device, characterized by: The invention comprises a first shell (1) and a second shell (2), wherein the first shell (1) and the second shell (2) are buckled together to form a breeding chamber, a plurality of water holes (3) are distributed on the first shell (1) and the second shell (2), the size of the water holes (3) being smaller than the shell width of the freshwater snails to be cultured, and a locking mechanism is provided at the buckling point of the first shell (1) and the second shell (2).

2. A freshwater snail individual breeding device according to claim 1, characterized in that: The first shell (1) and the second shell (2) are connected via an elastic connecting strip (7), and a groove (701) is provided in the middle of the elastic connecting strip (7) towards the side where it is bent.

3. A freshwater snail individual breeding device according to claim 1, characterized in that: A threading ring (6) is provided on the first shell (1) or the second shell (2).

4. The freshwater snail individual breeding device according to claim 1, characterized in that: The locking mechanism comprises a receiving portion (4) and / or an inserting portion (5) provided on the first shell (1), and an inserting portion (5) and / or a receiving portion (4) provided on the second shell (2) and corresponding to the receiving portion (4) and / or the inserting portion (5) on the first shell (1).

5. The freshwater snail individual breeding device according to claim 4, characterized in that: The receiving portion (4) is provided with a socket (401), and the plug-in portion (5) is provided with a protrusion (501) capable of plugging and matching with the socket (401) at a corresponding position.

6. The freshwater snail individual breeding device according to claim 1, characterized in that: The first shell (1) and the second shell (2) are hemispherical structures or hemispherical structures of the same size.

7. The freshwater snail individual breeding device according to claim 1, characterized in that: The water hole (3) is one of a circle, a rectangle, a square, a pentagon, a hexagon, and a rhombus.

8. A method for single aquaculture of freshwater snails, characterized in that: A freshwater snail individual breeding device according to any one of claims 1 to 7 comprises the following steps: S1. Putting juvenile freshwater snails into a breeding cavity formed by fastening the first shell (1) and the second shell (2) of the juvenile snail breeding device, placing one juvenile snail in each breeding cavity, and the size of the water holes (3) on the first shell (1) and the second shell (2) of the juvenile snail breeding device is smaller than the shell width of the juvenile snail; S2, buckling the first shell (1) and the second shell (2) of the juvenile snail breeding device together and locking them using the locking mechanism; S3, taking a rope to fix the juvenile snail breeding device or place it in a floating cage; S4, placing the young snail breeding device fixed in step S3 in a pond for breeding, and raising them until sexual maturity; S5, transferring the sexually mature freshwater snails from the juvenile snail breeding device in step S4 to an adult snail breeding device, wherein the size of the water holes (3) on the first shell (1) and the second shell (2) of the adult snail breeding device is smaller than the shell width of the adult snail; S6, buckling the first shell (1) and the second shell (2) of the snail breeding device together and locking them using the locking mechanism; S7. Take a rope and fix the snail culture device or place it in a floating cage; S8. Place the snail cultivation device fixed in step S7 in a pond for cultivation until harvest.

9. A method for individual cultivation of freshwater snails according to claim 8, characterized in that: The arrangement density of the floating cages is 8 to 10 per mu.

10. A method for individual cultivation of freshwater snails according to claim 9, characterized in that: The placement density of a single freshwater snail culture device in the floating cage is 2000-2500 snails / m 3 .

Images