An oviposition structure of leech

Abstract

The utility model relates to aquatic products breeding equipment technical field, concretely relates to a leech oviposition structure, including the main body frame that is stacked by multilayer support, and every layer support is detachably connected with a plurality of oviposition tray, the oviposition tray is filled with the oviposition matrix system, the main body frame bottom is equipped with dynamic water level adaptive structure, and dynamic water level adaptive structure is used for adjusting the water immersion depth of oviposition tray, the oviposition matrix system is pre -buried with bionic acupoint channel induction structure, and bionic acupoint channel induction structure is used for simulating natural acupoint channel to guide the leech to lay eggs. The utility model can optimize the leech to lay eggs environment, promotes the oviposition efficiency and space utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, specifically to a leech egg-laying structure. Background Technology

[0002] Leeches, a traditional Chinese medicine, possess highly valuable medicinal properties due to the hirudin in their saliva. Market demand continues to grow, making large-scale farming crucial for the industry's development. However, existing leech breeding stock exhibits significant defects in its egg-laying structure, severely limiting egg-laying efficiency and farming profitability.

[0003] Firstly, the space utilization rate is low and the water level control is rigid. Traditional breeding beds are mostly flat designs, which can only accommodate a limited number of breeding leeches per unit area, making it difficult to meet the needs of large-scale production. Moreover, the water level is mostly fixed, which cannot simulate the dynamic selection of immersion depth by breeding leeches when laying eggs in the natural environment (such as breeding leeches usually laying eggs in a moist environment where the water level is 1 / 3 of the way up the soil embankment). Fixed water levels can easily cause breeding leeches to reduce their egg-laying enthusiasm due to environmental discomfort, or the egg cocoons to be submerged due to excessively high water levels, affecting the hatching rate.

[0004] Secondly, the leeches have a heavy burden in digging burrows and it is difficult to collect the egg cocoons. Traditional breeding beds lack biomimetic burrow design, so the leeches have to dig burrows themselves, which consumes a lot of energy and prolongs the egg-laying cycle. In addition, the egg cocoons are scattered in the substrate, and the soil needs to be turned over when collecting them, which can easily disturb the leeches or damage the egg cocoons, resulting in an increased cocoon death rate (up to 15%-20%).

[0005] The aforementioned problems result in low spawning efficiency and high breeding costs for leeches, thus necessitating the development of a new spawning structure that can dynamically adapt to water levels and simulate natural burrows. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a leech egg-laying structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A leech oviposition structure includes a main frame composed of multiple stacked supports, with multiple oviposition trays detachably connected to each support layer; the oviposition trays are filled with an oviposition matrix system; a dynamic water level adaptation structure is provided at the bottom of the main frame, which is used to adjust the immersion depth of the oviposition trays; a biomimetic acupoint induction structure is pre-embedded in the oviposition matrix system, which is used to simulate natural acupoints to guide leeches to lay eggs.

[0009] As a further embodiment of this utility model: the dynamic water level adaptation structure includes a pontoon connected to the main frame and a counterweight detachably mounted on the pontoon. The buoyancy of the pontoon is adjusted by increasing or decreasing the number of the counterweights to change the height of the main frame, thereby adjusting the immersion depth of the spawning tray.

[0010] As a further embodiment of this utility model: a connecting rod is provided at each of the four corners of the bottom of the main frame, and the end of the connecting rod away from the support is threaded to the float; the counterweight is sleeved on the connecting rod and acts on the upper surface of the float.

[0011] As a further improvement of this utility model, the float is made of PVC foam column and the counterweight is made of metal ring.

[0012] As a further embodiment of this utility model: the biomimetic acupoint induction structure is a Y-shaped silicone tube, with the branch ends of the Y-shaped silicone tube facing downwards and pre-embedded in the oviposition matrix system.

[0013] As a further embodiment of this utility model: the spawning substrate system comprises a base layer, a core layer, and a cover layer stacked sequentially from bottom to top; the base layer is a porous ceramsite layer; the core layer is a mixture of sandy loam and humus; and the cover layer is a moist moss layer.

[0014] As a further embodiment of this utility model: the bottom of the spawning tray is provided with an ultraviolet disinfection module and a compound Bacillus slow-release tablet. The ultraviolet disinfection module is used to disinfect the spawning matrix system, and the compound Bacillus slow-release tablet is used to maintain the probiotic community of the spawning matrix system.

[0015] By adopting the above technical solution, this utility model will have the following beneficial effects:

[0016] By using a multi-layered stackable support structure, the traditional planar breeding bed is upgraded to a three-dimensional structure, significantly increasing the leech capacity per unit space and effectively solving the problem of low space utilization in traditional breeding beds. Through a dynamic water level adaptation structure, the immersion depth of the egg-laying tray can be flexibly adjusted, simulating the dynamic selection of water level by leeches when laying eggs in the natural environment. This ensures that the leeches are in a suitable humid environment, increasing their egg-laying enthusiasm and solving the defects of low egg-laying efficiency or submersion of egg cocoons caused by traditional fixed water levels. Through a biomimetic burrow induction structure, which simulates the branching morphology of natural burrows, leeches are guided to concentrate in artificial channels to lay eggs, reducing the energy consumption of leeches digging their own burrows. At the same time, it concentrates the distribution of egg cocoons, making subsequent collection easier.

[0017] Compared with existing technologies, this utility model optimizes the leech spawning environment through the synergistic effect of the above-mentioned design, improves spawning efficiency and space utilization, and effectively supports the industrial demand for large-scale leech farming. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the leech oviposition structure described in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A cross-sectional view of the oviposition matrix system described in the embodiment;

[0021] Figure 3 for Figure 1 A front view of the leech oviposition structure in its operational state;

[0022] Figure 4 for Figure 1 A top view of the leech oviposition structure described above;

[0023] Figure 5 for Figure 1 A three-dimensional view of the leech oviposition structure in the state where the oviposition tray is hidden;

[0024] Figure 6 for Figure 1 An exploded view of the dynamic water level adaptation structure described in the embodiment.

[0025] The correspondence between the labels and component names in the attached figures is as follows:

[0026] 1. Main frame; 11. Support; 12. Spawning tray; 13. Spawning substrate system; 131. Base layer; 132. Core layer; 133. Covering layer; 14. Connecting rod; 2. Dynamic water level adaptation structure; 21. Float; 22. Counterweight; 3. Bionic cave induction structure; 4. Slide rail; 5. Buckle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] refer to Figure 1-6 In one embodiment of the leech oviposition structure provided by this utility model, the leech oviposition structure includes a main frame 1, a dynamic water level adaptation structure 2, and a biomimetic acupoint induction structure 3:

[0029] The main frame 1 consists of two stacked support layers 11. These support layers 11 are made of PVC pipe (2cm in diameter) and welded together by hot-melt welding. Each layer of support 11 is 20cm high and connected by buckles 5, allowing for longitudinal expansion according to the scale of aquaculture. Each layer of support 11 has four spawning trays 12, each measuring 30cm x 30cm. These spawning trays 12 are made of PP plastic (2mm thick) and have a slide rail 4 at the bottom. They can be detachably pulled out along the support 11 for easy placement and removal. The spawning tray 12 is filled with an spawning substrate system 13, which consists of a base layer 131, a core layer 132, and a cover layer 133 from bottom to top: the base layer 131 is a 3cm thick porous ceramsite (2-3mm in diameter) for drainage and aeration; the core layer 132 is a 6cm thick layer of sandy loam and humus mixture (7:3 by mass); and the cover layer 133 is a 1cm thick layer of moist moss (for shading and moisture retention).

[0030] The dynamic water level adaptation structure 2 is located at the bottom of the main frame 1, including a float 21 connected to the main frame 1 and counterweights 22 detachably mounted on the float 21. The buoyancy of the float 21 can be adjusted by increasing or decreasing the number of counterweights 22. Specifically, the float 21 is made of PVC foam (6cm in diameter, 10cm in length), and the counterweights 22 are made of metal rings (50-100g / piece). L-shaped connecting rods 14 are located at the four corners of the bottom of the main frame 1. The horizontal side of the connecting rod 14 connects to the main frame 1, and the lower end of the vertical side is threaded to the float 21. The counterweights 22 are fitted onto the connecting rods 14 and act on the upper surface of the float 21 by gravity. In use, by increasing or decreasing the number of counterweights 22 fitted onto the connecting rods 14, the buoyancy of the float 21 is adjusted, the height of the main frame 1 is changed, and thus the immersion depth of the spawning tray 12 is adjusted (0-15cm adjustable). For example, when the water level in the breeding pond is 20cm, two counterweights 22 are added to lower the frame to the soil embankment (top of the core layer 132) of the spawning tray 12, immersing it in 1 / 3 of the water level (about 7cm), simulating the optimal water level for leeches to spawn in the natural environment.

[0031] The biomimetic burrow induction structure 3 is pre-embedded in the core layer 132 of the oviposition matrix system 13. Specifically, it is a Y-shaped silicone tube: 3-5 Y-shaped silicone tubes are pre-embedded in each oviposition tray 12. The tube has an inner diameter of 1cm and a length of 8cm. One end of the tube's main stem faces upward (the opening is 2cm from the top of the core layer 132), and the branch ends face downward (embedded in the bottom of the core layer 132), forming a branching structure of "main burrow + side burrow," simulating the burrowing morphology of leeches in the natural environment. After entering the oviposition tray 12, the leeches will enter the burrow along the opening of the Y-shaped tube, reducing the energy consumption of digging the burrow themselves. The egg cocoons are concentrated in and around the tube, making them easy to collect later.

[0032] In addition, the bottom of the spawning tray 12 is equipped with an LED ultraviolet disinfection module (Philips UV-C, 5W), which is detachably connected via a slot and activated once a week (10 minutes / time) to disinfect the substrate and kill pathogens; the bottom of the tray is also affixed with compound Bacillus slow-release tablets (each tablet contains 1×10 Bacillus). 9 CFU (with the same composition as core layer 132) is replaced every 2 months. It slowly releases probiotics, maintains the balance of bacteria in the substrate, and reduces the rate of dead cocoons.

[0033] The workflow of this utility model is as follows:

[0034] 1. Preparation stage: Fill the spawning substrate into the pull-out tray in the order of base layer 131 → core layer 132 → covering layer 133 to form spawning substrate system 13, and pre-embed Y-shaped silicone tubing; install float 21 at the bottom of the main frame 1, and add counterweight 22 to make the soil embankment of spawning tray 12 submerge to 1 / 3 of the water level in the aquaculture pond; activate the ultraviolet disinfection module at the bottom of spawning tray 12 to disinfect spawning substrate system 13 for 10 minutes, and then place it for 24 hours to allow Bacillus to activate.

[0035] 2. Seeding and egg-laying: Place the leeches into the egg-laying tray 12 and cover the main frame 1 with a black blackout cloth (blocking rate ≥80%) to simulate the dark environment for leeches to lay eggs.

[0036] 3. Egg collection: 15 days after the leeches lay eggs, the egg-laying tray 12 is removed from the support 11; the tray is immersed in shallow water 10cm deep. The egg cocoons float because their density is less than that of water. The floating egg cocoons are collected; the new substrate in the tray is replaced and reinstalled into the support 11 to enter the next egg-laying cycle.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oviposition structure of a leech, characterized by, The system includes a main frame (1) consisting of multiple stacked supports (11), with multiple spawning trays (12) detachably connected to each support (11); the spawning trays (12) are filled with an spawning matrix system (13); the bottom of the main frame (1) is provided with a dynamic water level adaptation structure (2), which is used to adjust the immersion depth of the spawning trays (12); the spawning matrix system (13) is pre-embedded with a biomimetic acupoint induction structure (3), which is used to simulate natural acupoints to guide leeches to lay eggs.

2. The oviposition structure of the leech according to claim 1, characterized in that: The dynamic water level adaptation structure (2) includes a buoy (21) connected to the main frame (1) and a counterweight (22) detachably mounted on the buoy (21). The buoyancy of the buoy (21) is adjusted by increasing or decreasing the number of the counterweight (22) to change the height of the main frame (1) and thus adjust the immersion depth of the spawning tray (12).

3. The oviposition structure of the leech according to claim 2, characterized in that: The main frame (1) is provided with connecting rods (14) at the four corners of the bottom. The end of the connecting rod (14) away from the bracket (11) is threaded to the float (21). The counterweight (22) is sleeved on the connecting rod (14) and acts on the upper surface of the float (21).

4. The leech oviposition structure according to claim 3, characterized in that, The pontoon (21) is made of PVC foam column and the counterweight (22) is made of metal ring.

5. The leech oviposition structure according to claim 1, characterized in that: The biomimetic acupoint induction structure (3) is a Y-shaped silicone tube, with the branch ends of the Y-shaped silicone tube facing downwards and pre-embedded in the oviposition matrix system (13).

6. The oviposition structure of the leech according to claim 1, wherein: The spawning substrate system (13) includes a base layer (131), a core layer (132) and a cover layer (133) stacked from bottom to top; the base layer (131) is a porous ceramsite layer; the core layer (132) is a mixed layer of sandy loam and humus; and the cover layer (133) is a moist moss layer.

7. The leech oviposition structure according to claim 1, characterized in that: The bottom of the spawning tray (12) is provided with an ultraviolet disinfection module and a compound Bacillus sustained-release tablet. The ultraviolet disinfection module is used to disinfect the spawning matrix system (13), and the compound Bacillus sustained-release tablet is used to maintain the probiotic community of the spawning matrix system (13).

Images