Shield for blue crab breeding experiment
By designing a multi-layered shelter structure that combines aquatic plants with traditional mud crab farming shelters, the problem of insufficient space in traditional shelters has been solved, thereby improving the survival rate and farming efficiency of mud crabs.
Patent Information
- Application Number
- CN202423087543.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Traditional mud crab farming methods suffer from limited shelter and insufficient utilization of underwater space, resulting in high difficulty in mud crab farming and low survival rates.
Design a multi-layered shelter structure comprising an inverted plastic mesh frame, plastic cover, counterweight, a layer of aquatic plants, and chains to provide ample hiding space and enhance the shelter function by incorporating aquatic plants to promote microbial attachment.
Within a limited aquaculture area, the crabs have more hiding space, which improves their survival rate. The aquatic plant layer provides a food source and enhances the overall function of the shelter.
Smart Images
Figure CN223528717U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mud crab farming technology, and in particular to a covering for mud crab farming experiments. Background Technology
[0002] Mud crabs are loved by many for their delicious meat and rich nutrition. However, because mud crabs are aggressive animals, the cannibalism rate is high during breeding, especially during molting when they are easily attacked by other individuals, leading to infection with bacteria and a low survival rate. Therefore, breeding mud crabs is difficult. Thus, when conducting mud crab breeding experiments, it is necessary to set up appropriate measures in the breeding pond to provide mud crabs with hiding and shelter, thereby preventing cannibalism during asynchronous molting and improving the survival rate and breeding yield of mud crabs.
[0003] However, traditional methods of using roof tiles, PVC pipes, fruit baskets, etc. as shelters are limited in space and have insufficient utilization of underwater space, which is not conducive to their widespread use. Utility Model Content
[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a cover for crab farming experiments to enrich its functions and increase the number of hiding spaces.
[0005] A concealing device for a mud crab farming experiment, placed in a mud crab farming experimental pond, the concealing device includes at least two concealing structures; each concealing structure includes an inverted plastic mesh frame, a plastic cover sheet fixedly installed on the plastic mesh frame, and a counterweight for supporting the plastic mesh frame; the concealing device also includes:
[0006] A layer of aquatic plants laid on the corresponding shelter structure; and
[0007] Two chains mounted on the corresponding shielding structure.
[0008] As a further improvement to the above solution, a channel I for the passage of blue crabs is provided on one side wall of the plastic mesh frame, and the other side wall of the plastic mesh frame is an open structure.
[0009] As a further improvement to the above solution, the plastic cover is located above the counterweight and has an inverted concave structure.
[0010] As a further improvement to the above solution, the counterweight is made of stainless steel and is fixedly installed at the edge of the plastic mesh frame.
[0011] As a further improvement to the above solution, the aquatic plant layer laid on the plastic mesh frame is tied and fixed thereto, and the aquatic plant layer laid on the plastic cover sheet is tied and fixed thereto.
[0012] As a further improvement to the above solution, the plastic mesh frame has an isosceles trapezoidal structure, and a channel II for the passage of blue crabs is opened through the hypotenuse of the plastic mesh frame.
[0013] As a further improvement to the above scheme, two chains are fixedly connected to the corresponding two sides of the corresponding plastic mesh frame, and the chains and channel II are located on the same side.
[0014] As a further improvement to the above scheme, two adjacent shielding structures are combined by chains, and the two adjacent chains are magnetically fixed together.
[0015] As a further improvement to the above scheme, magnets are fixedly installed at the ends of two adjacent chains that are close to each other.
[0016] Compared with the prior art, the beneficial effects of this utility model are: it has a multi-layer design, which increases the number of hiding spaces within a limited breeding area. In addition to providing hiding spaces, it also combines aquatic plants and shelter, which is conducive to the attachment of aquatic microorganisms so that the crabs can feed on them, thereby enriching the function of the shelter. Attached Figure Description
[0017] Figure 1 The image shown is a front view of a shielding device used in a mud crab farming experiment provided by this utility model.
[0018] Figure 2 As shown Figure 1 A structural diagram of the shielding structure.
[0019] Figure 3 The diagram shows a combination of two shielding structures.
[0020] Explanation of main component symbols
[0021] 1. Plastic mesh frame; 2. Plastic cover; 3. Counterweight; 4. Aquatic plant layer; 5. Chain.
[0022] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a further detailed explanation of this utility model. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. Additional aspects and advantages of this utility model 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 utility model. It should be understood that the following description is merely illustrative and not intended to limit the utility model.
[0024] The specific embodiments of this utility model are described in detail below.
[0025] Please see Figure 1-3 This embodiment provides a covering for a mud crab farming experiment, which is placed in a mud crab farming experimental pond. The covering includes two covering structures, an aquatic plant layer 4 laid on the corresponding covering structures, and two chains 5 installed on the corresponding covering structures.
[0026] Each shelter structure includes an inverted plastic mesh frame 1, a plastic cover 2 fixedly mounted on the plastic mesh frame 1, and a counterweight 3 for supporting the plastic mesh frame 1. The counterweight 3 is made of stainless steel and is fixedly mounted at the edge of the plastic mesh frame 1. In this embodiment, the weight of the shelter is increased by the counterweight 3, thereby ensuring that the shelter sinks to the bottom in the aquaculture water to stably provide hiding space for the crabs.
[0027] The plastic mesh frame 1 has a channel I on one side wall for the crab to pass through, and the other side wall of the plastic mesh frame 1 has an opening structure. Based on the above design, the crab can enter the frame space from the front and back of the plastic mesh frame 1 to hide.
[0028] The plastic mesh frame 1 has an isosceles trapezoidal structure, and a channel II for the passage of mud crabs is provided through the hypotenuse of the plastic mesh frame 1. The plastic cover 2 is located above the counterweight 3, and the plastic cover 2 has an inverted concave structure. In this embodiment, the space inside the plastic mesh frame 1 and the plastic cover 2 are connected by the channel II, so that the mud crabs can climb from inside the plastic mesh frame 1 along the channel II to the slope, and finally enter the hiding space formed by the plastic cover 2. The hiding space provided by the plastic cover 2 is above the hiding space provided by the plastic mesh frame 1, thereby increasing the number of hiding spaces within the limited breeding area.
[0029] The aquatic plant layer 4 laid on the plastic mesh frame 1 is tied and fixed thereto, and the aquatic plant layer 4 laid on the plastic cover sheet 2 is also tied and fixed thereto. In this embodiment, the addition of the aquatic plant layer 4 modifies the concealment structure, improving the hiding space for mud crabs while also facilitating the attachment of aquatic microorganisms, thus enabling mud crabs to feed on it.
[0030] Two chains 5 are fixedly connected to corresponding sides of the plastic mesh frame 1, with chains 5 and channel II located on the same side. Adjacent shielding structures are combined via chains 5, and adjacent chains 5 are magnetically fixed together. Magnets are fixedly installed at the ends of adjacent chains 5 that are close to each other. In this embodiment, the chains 5 serve a connecting function, and their placement allows for flexible adjustment of the angle between the two shielding structures to meet the shielding needs of crabs in different areas.
[0031] This embodiment uses the combination of two shielding structures via chain 5 as an example for illustration. In other embodiments, the number of shielding structures can be increased depending on the size of the aquaculture experimental environment. Correspondingly, the combination of multiple shielding structures via chain 5 can be flexibly transformed into more shapes, such as S-shape, U-shape, ring, and square, etc., which will not be elaborated here.
[0032] In summary, the shelter in this embodiment has the following advantages: it has a multi-layered design, which increases the number of hiding spaces within a limited breeding area; in addition to providing hiding spaces, it also combines aquatic plants with shelter and protection, which is conducive to the attachment of aquatic microorganisms so that the crabs can feed on it, thereby enriching the function of the shelter.
[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A covering for a mud crab farming experiment, placed in a mud crab farming experimental pond, the covering comprising at least two covering structures; characterized in that, Each shielding structure includes an inverted plastic mesh frame (1), a plastic cover (2) fixedly installed on the plastic mesh frame (1), and a counterweight (3) for supporting the plastic mesh frame (1). The shielding also includes: A layer of aquatic plants (4) laid on the corresponding shelter structure; and Two chains (5) are installed on the corresponding shielding structure.
2. The covering material for crab farming experiments according to claim 1, characterized in that, The plastic mesh frame (1) has a channel I for the passage of crabs on one side wall, and the plastic mesh frame (1) has an open structure on the other side wall.
3. The covering material for aquaculture experiments of mud crabs according to claim 2, characterized in that, The plastic cover (2) is located above the counterweight (3), and the plastic cover (2) has an inverted concave structure.
4. The covering material for aquaculture experiments of mud crabs according to claim 1, characterized in that, The counterweight (3) is made of stainless steel and is fixedly installed at the edge of the plastic mesh frame (1).
5. The covering material for aquaculture experiments of mud crabs according to claim 1, characterized in that, The aquatic plant layer (4) laid on the plastic mesh frame (1) is tied and fixed thereto, and the aquatic plant layer (4) laid on the plastic cover sheet (2) is tied and fixed thereto.
6. The covering material for aquaculture experiments of mud crabs according to claim 5, characterized in that, The plastic mesh frame (1) has an isosceles trapezoidal structure, and a channel II for passing through the hypotenuse of the plastic mesh frame (1) is provided.
7. The covering for a mud crab farming experiment according to claim 6, characterized in that, Two chains (5) are fixedly connected to the corresponding two sides of the corresponding plastic mesh frame (1), and the chains (5) and the channel II are on the same side.
8. The covering material for aquaculture experiments of mud crabs according to claim 1, characterized in that, The two adjacent shielding structures are combined by chains (5), and the two adjacent chains (5) are magnetically fixed together.
9. The covering material for aquaculture experiments of mud crabs according to claim 8, characterized in that, Magnets are fixedly installed at the ends of two adjacent chains (5) that are close to each other.