Tadpole feeding device

Abstract

The utility model provides a tadpole feeding device which comprises a floating ring and a food bearing net bag, the middle of the floating ring is of a hollow structure, the food bearing net bag is connected with the floating ring, and the tadpole feeding device is used for feeding tadpoles. The feed bearing net bag is connected with the floating ring, the floating ring plays a role in floating on the water surface, the feed bearing net bag is used for bearing blocky feed, and the size of the blocky feed is larger than that of meshes of the net bag. The tadpole feed is located under the water surface, does not sink to the water bottom and can suspend in the water, so that tadpoles can conveniently eat the feed in the water and can also enter the net bag to eat the feed; the tadpoles are prevented from gathering on the water surface to introduce natural enemies, the survival rate of the tadpoles bred outdoors is improved, and the feed is prevented from sinking to the water bottom to ferment and pollute water. The tadpole feeding device is simple and novel in structure and convenient to assemble and disassemble, nighttime feeding can be expanded, nutrition supplement can be carried out on tadpoles by means of insects, the growth cycle of the tadpoles is shortened, and the breeding cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tadpole breeding equipment, and in particular to a tadpole feeding device. Background Technology

[0002] Forest frogs and toads have extremely high edible and medicinal value and are important agricultural economic species, currently being farmed in large quantities. Tadpoles are the larvae of most amphibians in the Ranidae family of the order Anura, including forest frogs and toads, and tadpole farming is a crucial link in the forest frog and toad farming industry. Tadpoles are sensitive to their external environment, prefer to gregariously (a population protection mechanism), and exhibit selective phototropism, particularly favoring warm light (long wavelengths). Tadpole farming requires artificial intervention and supplemental feeding. Currently, the commonly used feeds in tadpole farming are sinking compressed pellets or block-shaped sinking feed and extruded pellet floating feed. Sinking feed, after dissolving, mixes with sediment and ferments, easily causing water pollution and breeding pathogens. Floating feed easily attracts tadpoles to gather on the water surface, thus attracting predators. Tadpoles mostly feed during the day, with significantly reduced feeding at night. To improve tadpole growth rate, it is necessary to increase tadpole feeding time and amount. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a tadpole feeding device, including a float ring and a feeding net box. The float ring has a hollow structure in the middle, and the upper part of the feeding net box is connected to the float ring, with the feeding net box located below the float ring.

[0004] Furthermore, each side of the feeding net box has a mesh structure, and the upper part of the feeding net box is equipped with a hanging rope with a hook at the upper end, which is used to suspend it from the float; the feeding net box is equipped with a feeding port.

[0005] Preferably, the feeding port is located on the side of the feeding cage.

[0006] Furthermore, the feeding cage is a hemispherical cage or a columnar cage, and the upper part of the hemispherical cage is provided with a support ring; the columnar cage can be cylindrical or prismatic, and the top and bottom of the columnar cage are respectively provided with support rings, which serve as counterweights.

[0007] Furthermore, the mesh size of the feeding cage is not less than 0.7cm.

[0008] Preferably, the mesh size of the feeding net cage is 0.7 to 1.5 cm.

[0009] Furthermore, the height of the feeding net cage is 5-20cm, and the length of the hanging rope is 5-10cm.

[0010] Preferably, the float is a circular hollow air ring, a circular hollow foam ring, or a rectangular hollow foam ring.

[0011] Furthermore, the float is provided with a support, and the support is provided with a light source, which is located above the hollow part of the float.

[0012] Furthermore, the bracket is a portal frame that spans the upper part of the float ring; both ends of the bracket are provided with annular claws at the lower part, the lower part of the annular claws are open, and the annular claws are fastened to the float ring to fix the bracket; the light source is located on the upper crossbeam of the bracket.

[0013] Preferably, the light source is a solar-powered battery lamp with a light-controlled switch, and the switching on and off is determined by a light threshold, i.e., it is off during the day and on at night, automatically turning on and off.

[0014] Furthermore, one method of connecting the feeding net cage and the float ring is as follows: the upper part of the feeding net cage is provided with several evenly distributed hanging ropes and large hooks, and the feeding net cage is directly hung on the float ring body through the large hooks.

[0015] Furthermore, another connection method between the feeding net cage and the float ring is as follows: the upper part of the feeding net cage is provided with several evenly distributed hanging ropes and small hooks, and the hollow part of the float ring or the bottom of the float ring is provided with several hanging rings. The feeding net cage is hung on the hanging rings of the float ring through the small hooks.

[0016] The working principle of this utility model:

[0017] This utility model provides a tadpole feeding device for feeding tadpoles, suitable for feeding tadpole bait with a particle size greater than 0.7 cm. A feeding net box is connected to a float ring, which floats on the water surface. The feeding net box holds sinking or floating bait, with the bait particle size larger than the mesh size of the net. The bait is added through the feeding port of the feeding net box, ensuring it sinks at least 5 cm below the water surface. The mesh size of the feeding net box is not less than 0.7 cm, larger than the size of the tadpoles, allowing them to crawl through the mesh to feed. Preferably, the mesh size of the feeding net box is 0.7–1.5 cm, larger than the size of the tadpoles but smaller than the bait particle size, preventing bait leakage. When the bait is suspended at the top or sunk at the bottom of the feeding net box, the tadpoles can directly feed through the mesh outside the net. Given that the water depth in tadpole breeding ponds is generally greater than 40cm, the feeding net cages keep the feed below the water surface but not sinking to the bottom, allowing it to float in the water, making it convenient for tadpoles to feed in the water. They can also crawl into the net to feed, while avoiding predators.

[0018] The float is a circular hollow inflatable ring, a circular hollow foam ring, or a rectangular hollow foam ring, which has a certain buoyancy and can float on the water surface. The inflatable ring is also easier to assemble, disassemble, and carry.

[0019] The bracket on the float is used to fix the light source, so that the light source is located above the hollow part of the float. Preferably, the light source is a solar-powered battery lamp with a light-controlled switch. It is charged by sunlight during the day and automatically turns on at night when the light dims to a certain threshold. The light emitted by the light source shines through the water surface and onto the bait in the water. Tadpoles will be attracted by the light and swim towards the bait in the net to feed. In addition, the light source can also attract phototactic insects to fly towards the light source. A certain number of flying insects will accidentally enter the water under the influence of the reflection on the water surface. The shaking of the insects on the water surface will attract tadpoles to feed on the insects, thus making the insects a supplement of animal protein for the tadpoles.

[0020] The bracket is configured as a portal frame, with annular claws at the lower ends of both ends. During installation, the bracket is fixed to the float by engaging the annular claws. During disassembly, the annular claws can be directly removed from the float to separate the bracket from the float.

[0021] After floating bait is placed into the feeding cage through the feeding port, if the buoyancy of the floating bait is large, in addition to the support ring of the feeding cage as a counterweight, stones, metal blocks and other counterweights can be added to the feeding cage to increase the weight of the feeding cage and prevent the floating bait from floating to the surface due to the buoyancy of the feeding cage being greater than that of the feeding cage.

[0022] The beneficial effects of this utility model are:

[0023] Based on the biological characteristics of tadpoles, this invention provides a tadpole feeding device. The device positions the bait below the water surface without sinking, allowing the tadpoles to easily feed in the water or even crawl into the net to eat. This prevents tadpoles from gathering at the surface and attracting predators, thus improving the survival rate of tadpoles raised outdoors. It also prevents the bait from sinking to the bottom and fermenting, polluting the water. Uneaten bait can be removed to avoid waste, and the device facilitates observation of feeding activity, allowing for timely recording of tadpole intake and effective management. The addition of light attraction at night solves the problem of low tadpole feeding rates and provides tadpoles with additional animal protein. The device features a simple and novel structure, is easy to assemble and disassemble, avoids predator interference, extends nighttime feeding, increases tadpole feeding time, and utilizes insects for nutritional supplementation, improving tadpole growth rate, shortening the breeding cycle, and reducing breeding costs. It achieves ideal feeding results and is suitable for the promotion and use in the breeding of frogs, toads, and other similar species. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0025] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0026] Figure 3 This is a schematic diagram of the feeding net cage structure in Embodiment 2 of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of Embodiment 4 of this utility model;

[0029] Figure 6 This is a schematic diagram of the support structure in Embodiment 4 of this utility model;

[0030] 1. Floating ring 2. Feeding net cage 3. Inflation port 4. Hanging rope 5. Hook 6. Feeding port 7. Hanging ring 8. Support frame 9. Light source 10. Ring claw 11. Support ring. Detailed Implementation

[0031] Example 1

[0032] like Figure 1 As shown: This embodiment provides a tadpole feeding device, including a float ring 1 and a feeding net box 2. The float ring 1 has a hollow structure in the middle, and the upper part of the feeding net box 2 is connected to the float ring 1. The float ring 1 is a circular hollow inflatable ring with an inflation port 3. The feeding net box 2 in this embodiment is a hemispherical net box, with both the circular top surface and the hemispherical bottom surface having a mesh structure with a mesh size of 0.7-1.5cm. The circular top surface is provided with a support ring 11, which serves as a support and also as a counterweight to prevent the net box and the feed inside from floating.

[0033] The working principle of this embodiment:

[0034] This embodiment provides a tadpole feeding device for feeding tadpoles, suitable for sinking tadpole bait. A feeding net box 2 is connected to a float ring 1, which has buoyancy and floats on the water surface. The feeding net box 2 is used to receive block-shaped sinking bait, the size of which is larger than the mesh size of the net. The bait sinks below the water surface in the feeding net box 2. The block-shaped bait is below the water surface but does not sink to the bottom, allowing it to float in the water. The mesh size of the feeding net box 2 is 0.7–1.5 cm, larger than the size of the tadpole but smaller than the size of the block-shaped bait, facilitating tadpoles to feed in the water and allowing them to crawl into the net to feed.

[0035] Example 2

[0036] like Figure 2-3As shown: This embodiment provides a tadpole feeding device. Based on Embodiment 1, the feeding net box 2 has a mesh structure on all sides. Four hanging ropes 4 are provided around the upper circumference of the feeding net box 2, and hooks 5 are provided at the upper ends of the ropes 4, which are then suspended from the float ring 1. The feeding net box 2 has a feeding port 6. The length of the hanging ropes 4 is approximately 5-10cm, and the height of the feeding net box 2 is approximately 5-10cm. The feeding net box 2 in this embodiment is a cylindrical net box. The top, bottom, and sides of the cylindrical net box have a mesh structure with a mesh size of 0.7-1.5cm. Support rings 11 are provided on the circular top and bottom surfaces, serving a supporting function and also acting as a counterweight to prevent the net box and the feed inside from floating. The feeding port 6 can be equipped with a zipper or a rope to close the feeding port 6.

[0037] Feed is introduced into the feeding port 6 of the feeding cage 2, so that the feed is suspended 10-30cm below the water surface.

[0038] Example 3

[0039] like Figure 4 As shown: This embodiment provides a tadpole feeding device. Based on embodiment 1, the upper part of the feeding net box 2 is provided with four evenly distributed hanging ropes 4 and small hooks 5. The bottom circumference of the float ring 1 is provided with four hanging rings 7. The feeding net box 2 is hung on the hanging rings 7 of the float ring 1 through the small hooks 5. The feeding net box 2 is provided with a feeding port 6.

[0040] Example 4

[0041] like Figure 5-6 As shown: This embodiment provides a tadpole feeding device. Based on embodiment 1, 2, or 3, the float 1 is equipped with a support 8, and the support 8 is equipped with a light source 9, which is located above the hollow part of the float 1. The light source 9 is a solar-powered battery lamp with a light-controlled switch, and includes a solar panel, a battery, a light-controlled switch, and a lamp holder. The light source 9 automatically turns on when the light dims to a certain threshold.

[0042] The bracket 8 is a portal frame that spans the upper part of the float ring 1; the lower part of both ends of the bracket 8 is provided with annular claws 10, the lower part of the annular claws 10 is open, and the annular claws 10 are fastened to the float ring 1 to fix the bracket 8; the light source 9 is provided on the upper crossbeam of the bracket 8.

[0043] The working principle of this embodiment:

[0044] The bracket 8 on the float 1 is used to fix the light source 9, so that the light source 9 is located above the hollow part of the float 1. The light source 9 is a solar-powered battery lamp with a light-controlled switch. It is charged by sunlight during the day and automatically turns on at night when the light dims to a certain threshold. The light emitted by the light source 9 shines through the water surface and onto the bait in the water, which can attract tadpoles to feed. The tadpoles will also swim towards the bait in the net to feed because of the light. In addition, the light source 9 can also attract phototactic insects to fly towards the light source. A certain number of flying insects will accidentally enter the water due to the influence of the reflection on the water surface. The shaking of the insects on the water surface will attract tadpoles to feed on the insects, thus making the insects a supplement of animal protein for the tadpoles.

[0045] The bracket 8 is configured as a portal frame. Both ends of the bracket 8 are provided with annular claws 10. During installation, the bracket 8 and the floating ring 1 are fixed by the annular claws 10 engaging with the floating ring 1. During disassembly, the annular claws 10 can be directly removed from the floating ring 1 to separate the bracket 8 from the floating ring 1.

Claims

1. A tadpole feeding device, characterized in that: The device includes a float and a feeding net box. The float has a hollow center, and the feeding net box is connected to the float at the top and is located below the float. All sides of the feeding net box have a mesh structure. The upper part of the feeding net box is equipped with a hanging rope, and the upper end of the hanging rope is equipped with a hook, which suspends the feeding net box from the float. The feeding net box has a feeding port. The mesh size of the feeding net box is not less than 0.7cm. The float has a support frame, and the support frame is equipped with a light source, which is located above the hollow part of the float.

2. The tadpole feeding device according to claim 1, characterized in that: The feeding cage is a hemispherical cage or a columnar cage. The hemispherical cage has a support ring at the top; the columnar cage has support rings at the top and bottom.

3. The tadpole feeding device according to claim 1, characterized in that: The mesh size of the feeding cage is 0.7~1.5cm.

4. The tadpole feeding device according to claim 1, characterized in that: The height of the feeding net cage is 5-20cm, and the length of the hanging rope is 5-10cm.

5. The tadpole feeding device according to claim 1, characterized in that: The bracket is a portal frame that spans the upper part of the float ring; both ends of the bracket are provided with annular claws with openings at the bottom, which engage with the float ring to fix the bracket; the light source is located on the upper crossbeam of the bracket.

6. The tadpole feeding device according to claim 1, characterized in that: The light source is a solar-powered battery lamp with a light-controlled switch.

7. The tadpole feeding device according to claim 1, characterized in that: The feeding net cage has several evenly distributed hanging ropes and hooks on its upper part, and several hanging rings are provided around the hollow part of the float or around the bottom of the float. The feeding net cage is hung on the hanging rings of the float by the hooks.

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