Fish egg collecting and hatching integrated device for acrossocheilus fasciatus

Abstract

The utility model belongs to the technical field of fish culture, and particularly relates to an acrossocheilus fasciatus roe collecting and hatching integrated device. Comprising a water storage frame used for providing a water environment, an egg collecting frame used for collecting fish eggs and an egg laying frame used for parent egg laying, frame bodies of the egg laying frame, the egg collecting frame and the water storage frame are gradually enlarged, and the egg laying frame, the egg collecting frame and the water storage frame are sequentially nested and erected from top to bottom, so that the frame bodies form three layers of nested structures from inside to outside; an ovipositor is arranged in the oviposition frame and is provided with a gravel-imitating rough surface, the bottom of the oviposition frame is provided with a first hole allowing roes to pass through, and the bottom of the roe collecting frame is provided with a second hole allowing water to pass through. The device is simple in structure and convenient to use, parent fish and fertilized eggs can be conveniently separated, after the fertilized eggs are hatched, fish fries can be conveniently transferred, the hatching rate is increased, and the survival amount of offspring is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of fish breeding, and in particular relates to an integrated device for collecting and hatching roe of smooth lipped fish. Background Art

[0002] The smooth-lipped fish, also known as grouper, has delicious meat and is one of the main species of economic fish.

[0003] At present, the indoor breeding of light lip fish mainly relies on "artificial induction of spawning and induced spawning". During spawning, pebbles need to be laid to stimulate the parent light lip fish to secrete enough gonadal hormones to promote ovulation and spermatogenesis. Since the fertilized eggs of light lip fish are semi-floating and slightly sticky, the eggs on the pebbles will be separated and float to the surface of the water and swallowed by the parent fish when they are stirred by the subsequent spawning parent fish. At the same time, when collecting eggs, the pebbles with fish eggs must be poured into a stainless steel sieve frame for sieving and separation, which is not only labor-intensive but also damages the fish eggs.

[0004] In order to reduce the consumption of croaker eggs by the parents and reduce the loss in the collection process, and improve the hatching rate of croaker eggs, it is very necessary to provide a device that is convenient for collecting and hatching croaker eggs. Utility Model Content

[0005] In order to solve the problems in the prior art, the utility model provides an integrated device for collecting and hatching roe of smooth lipped fish.

[0006] The technical solution adopted by the utility model is:

[0007] A device for collecting and hatching roe of smooth lipped fish comprises a water storage frame for providing a water environment, an egg collecting frame for collecting roe and a spawning frame for parent spawning, wherein the spawning frame, the egg collecting frame and the water storage frame are gradually enlarged in size and are stacked one after another from top to bottom in the order of the spawning frame, the egg collecting frame and the water storage frame, so that the respective frames form a three-layer stacking structure from inside to outside; an spawning device is arranged inside the spawning frame, the spawning device has a rough surface imitating gravel, the bottom of the spawning frame has a first pore allowing roe to pass through, and the bottom of the egg collecting frame has a second pore allowing water to pass through.

[0008] Preferably, it also includes a water sprinkling device, which is fixed at the edge of the water storage frame, the water inlet end of the water sprinkling device is connected to the water body in the water storage frame, and the other end is connected to the shower head to form a water outlet, and one water outlet is arranged above each of the spawning devices.

[0009] Preferably, the ovipositor is made of clay, and is detachably fixed to the inner bottom surface of the ovipositor frame, and at least one side of the surface of the ovipositor is configured as an inclined surface, and the inclined surface is arranged below the water outlet.

[0010] Preferably, the bottom of the egg-laying frame is a screen with a mesh size of 5 mm; the bottom of the egg-collecting frame is a screen with a mesh size of 0.2 mm.

[0011] Preferably, support members are respectively provided at the edges of the egg-laying frame and the egg-collecting frame, and the bottom surfaces of the support members abut against the edge of the frame of the next layer, so that when the egg-laying frame, the egg-collecting frame and the water-storage frame are stacked, their bottom surfaces are lifted in sequence.

[0012] The beneficial effects of the utility model are:

[0013] The utility model has a simple structure and is easy to prepare and use. The three-layer frame structure can easily separate the fish eggs from the parent fish, and collect the eggs for direct hatching. The three-layer frame is stacked and built, and the parent fish lays eggs in the spawning frame, and the eggs are attached to the spawning device. With the disturbance of the water body, the fish eggs fall off the spawning device and fall into the egg collecting frame. When all the fish eggs fall into the egg collecting frame, the spawning frame can be taken away to separate the parent fish. The water storage frame that provides the water environment can be a fish tank, and the egg collecting frame is placed in the fish tank to directly hatch the fry. The egg collecting frame can also facilitate the transfer of the fry.

[0014] The spawning device has a rough surface imitating gravel, which can stimulate the parent fish to ovulate and facilitate the attachment of fish eggs. A water spraying device is set above the spawning device, which can help the fish eggs fall into the egg collection frame through micro-water flow. At the same time, the water flow also increases the contact area between the water body and the oxygen in the air to provide a suitable dissolved oxygen environment for the fertilized eggs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the superposition of three-layer frames.

[0016] Figure 2 A schematic diagram of the structure of a water sprinkling device provided for a water storage frame.

[0017] Figure 3 It is a schematic diagram of the structure after the three-layer frame is stacked and erected.

[0018] Figure 4 Schematic diagram of the structure of the ovipositor.

[0019] The meanings of the symbols in the figure are as follows:

[0020] 10-water storage frame 20-egg collecting frame 21-second hole 30-egg laying frame 31-first hole

[0021] 40-ovipositor 41-inclined surface

[0022] 50-Watering device 51-Shower head

[0023] 60-Support DETAILED DESCRIPTION

[0024] The technical solution of the utility model is described below in conjunction with the accompanying drawings for the convenience of understanding by those skilled in the art.

[0025] like Figure 1-3 As shown, an integrated device for collecting and hatching fish eggs of smooth lipped fish comprises a water storage frame 10 for providing a water environment, an egg collecting frame 20 for collecting fish eggs and a spawning frame 30 for parental spawning. The spawning frame 30, the egg collecting frame 20 and the water storage frame 10 are gradually enlarged, and are stacked and laid in sequence from top to bottom in the order of the spawning frame 30, the egg collecting frame 20 and the water storage frame 10, so that each frame forms a three-layer nesting structure from inside to outside.

[0026] Support members 60 are respectively provided at the edges of the egg-laying frame 30 and the egg-collecting frame 20, and the bottom surfaces of the support members 60 abut against the edge of the frame of the next layer, so that when the egg-laying frame 30, the egg-collecting frame 20 and the water storage frame 10 are stacked, their bottom surfaces are lifted in turn to avoid contact.

[0027] At least one spawning device 40 is detachably fixedly arranged on the inner bottom surface of the spawning frame 30. The spawning device 40 is made of clay and has a rough surface imitating gravel, which can stimulate the parent to secrete gonadal hormones to promote ovulation and spermatogenesis, and facilitate the attachment of fish eggs.

[0028] The device can also be provided with a water spraying device 50, which is fixed to the edge of the water storage frame 10, the water inlet end of the water spraying device 50 is connected to the water body in the water storage frame 10, and the other end is connected to the shower head 51 to form a water outlet. The multiple streams of water formed by the shower head 51 can increase the contact area between the water body and the oxygen in the air, providing a suitable dissolved oxygen environment for the fertilized eggs. The setting position of the water spraying device 50 avoids the support member 60.

[0029] As a further configuration, at least one side of the surface of each spawning device 40 is configured as an inclined surface 41, which may be a curved surface. A water outlet is arranged above each spawning device 50, and the inclined surface 41 is configured directly below the water outlet. The distance between the water outlet and the inclined surface 41 is adjusted according to the size of the water flow and the position of the water surface, so that the water flow can flush the fish eggs with less force.

[0030] The bottom of the spawning frame 30 has a first pore 31 that allows fish eggs to pass through, specifically a screen with a mesh size of 5 mm, and the fish eggs can pass through the screen in time and fall into the egg collection frame 20 to avoid being swallowed by the parent fish. The bottom of the egg collection frame 20 has a second pore 21 that allows water to pass through, specifically a screen with a mesh size of 0.2 mm, which can facilitate water renewal and provide a better hatching environment for fertilized eggs.

[0031] The working process of the utility model is as follows: during the breeding period of parent fish, the female and male parents are scooped into the spawning frame 30, the parent fish ovulates and releases sperm, and when the eggs attached to the spawning device 40 are fertilized, the fertilized eggs are separated and fall into the egg collection frame 20 under the disturbance of micro-water flow or parent fish or artificial disturbance. At this time, the spawning frame 30 can be taken away, leaving only the egg collection frame 20 and the water storage frame 10 for hatching; when the fry are hatched, the egg collection frame 20 can be picked up to realize the rapid transfer of the fry. In this device, the water storage frame 10 is only used to provide a water environment, so it can be a fish tank or other container, and the present invention does not make special restrictions on this.

[0032] The utility model can increase the fertilized egg retention rate and improve the fry emergence rate by quickly separating parent fish and fertilized eggs and providing a relatively stable fertilized egg hatching environment.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for collecting and hatching roe of smooth lipped fish, characterized in that: The invention comprises a water storage frame (10) for providing a water environment, an egg collecting frame (20) for collecting fish eggs, and an spawning frame (30) for parents to spawn. The frame bodies of the spawning frame (30), the egg collecting frame (20), and the water storage frame (10) gradually increase in size, and are stacked and laid in sequence from top to bottom in the order of the spawning frame (30), the egg collecting frame (20), and the water storage frame (10), so that the respective frame bodies form a three-layer stacking structure from inside to outside. An spawning device (40) is arranged inside the spawning frame (30), and the spawning device (40) has a rough surface imitating gravel. The bottom of the spawning frame (30) has a first pore (31) allowing fish eggs to pass through, and the bottom of the egg collecting frame (20) has a second pore (21) allowing water to pass through.

2. The integrated device for collecting and hatching roe of a bream as claimed in claim 1, characterized in that: It also comprises a water sprinkling device (50), the water sprinkling device (50) being fixed to the edge of the water storage frame (10), the water inlet end of the water sprinkling device (50) being connected to the water body in the water storage frame (10), and the other end being connected to a shower head (51) to form a water outlet end, and one water outlet end being arranged above each of the ovipositors (40).

3. The integrated device for collecting and hatching roe of a bream as claimed in claim 2, characterized in that: The ovipositor (40) is made of pottery, and is detachably fixed to the inner bottom surface of the ovipositor frame (30). At least one side of the surface of the ovipositor (40) is provided as an inclined surface (41), and the inclined surface (41) is arranged below the water outlet end.

4. The integrated device for collecting and hatching roe of a bream as claimed in claim 1, characterized in that: The bottom of the egg-laying frame (30) is a screen with a mesh size of 5 mm; the bottom of the egg-collecting frame (20) is a screen with a mesh size of 0.2 mm.

5. The integrated device for collecting and hatching roe of smooth lipped fish as claimed in claim 1, characterized in that: Support members (60) are respectively arranged at the edges of the egg-laying frame (30) and the egg-collecting frame (20), and the bottom surface of the support member (60) abuts against the edge of the frame of the next layer, so that when the egg-laying frame (30), the egg-collecting frame (20) and the water storage frame (10) are stacked and laid, their bottom surfaces are lifted up in sequence.

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