Novel environment-friendly net cage culture system suitable for culturing bullfrogs in ponds and reservoirs

Abstract

The utility model discloses a novel environment-friendly net cage culture system suitable for culturing bullfrogs in a pond or a reservoir, which comprises a net cage outer frame, a net cage inner frame, a bullfrog culture net cage, a fish culture net cage and a pollution discharge bin, and the net cage outer frame and the net cage inner frame are arranged in the pond or the reservoir in a floating mode. The net cage inner frame is arranged on the inner periphery of the net cage outer frame, the bullfrog culture net cage is fixedly arranged on the net cage inner frame, the fish culture net cage is fixedly arranged at the bottom of the net cage outer frame and is arranged up and down with the bullfrog culture net cage, and the pollution discharge bin is arranged at a pollution discharge port in the bottom end of the fish culture net cage. According to the bullfrog breeding net cage, the bullfrog breeding net cage and the fish breeding net cage are arranged to be of an up-down opposite structure, so that residual feed, frog skin and excrement in the bullfrog breeding net cage fall into the fish breeding net cage to be eaten by decaying fishes, bait casting is reduced, and therefore economic benefits of bullfrog breeding are improved; and the pollution of residual feeds and the like to water bodies and environments is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, in particular to a novel environment-friendly cage culture system suitable for breeding bullfrogs in ponds and reservoirs. Background Art

[0002] Traditional bullfrog farming methods include outdoor pond farming and outdoor breeding pond farming. Regardless of the farming method, bullfrog farming occupies a large area and is easily restricted by space and region, resulting in high farming costs and low economic benefits. At the same time, the above three farming methods all use artificial feeding. Due to the large area and long water quality renewal cycle, some feed residues, bullfrog feces and frog skins cannot be cleaned up in time and accumulate and precipitate, which easily pollutes the water quality and the environment. Utility Model Content

[0003] The purpose of the utility model is to provide a new environmentally friendly cage culture system suitable for breeding bullfrogs in ponds and reservoirs, which can improve economic benefits and reduce pollution, so as to solve the problems of high breeding costs, low economic benefits and pollution of water bodies and the environment proposed in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel environmentally friendly cage culture system suitable for breeding bullfrogs in ponds and reservoirs comprises a cage outer frame, a cage inner frame, a bullfrog breeding cage, a fish breeding cage and a sewage discharge bin. The cage outer frame and the cage inner frame are arranged in a floating manner in a pond or a reservoir, the cage inner frame is arranged inside the cage outer frame, the bullfrog breeding cage is fixedly arranged on the cage inner frame, the fish breeding cage is fixedly arranged at the bottom of the cage outer frame and arranged above and below the bullfrog breeding cage, and the sewage discharge bin is arranged at the sewage discharge port at the bottom end of the fish breeding cage.

[0006] Preferably, the outer frame of the cage is connected to the inner frame of the cage by a plurality of ribs, and cage floats for adjusting the water immersion depth of the cage are arranged between adjacent ribs.

[0007] Preferably, the bullfrog breeding cages are placed in an area of ​​20% to 35% of the area of ​​the pond or reservoir.

[0008] Preferably, when the bullfrog breeding cage is placed in a pond or reservoir, the water surface is 0.4 to 0.6 m away from the top thereof.

[0009] Preferably, the top cover of the bullfrog breeding cage is provided with a cover net.

[0010] Preferably, the bottom of the bullfrog breeding cage is a feed shielding net.

[0011] Preferably, a plurality of plastic shed supports are arranged at intervals across the top two edges of the inner frame of the cage.

[0012] Preferably, the fish farming cage is funnel-shaped.

[0013] Preferably, the sewage discharge bin is connected to a sewage discharge pipe at one end opposite to the fish breeding cage, and a discharge valve is provided on the discharge pipe.

[0014] Preferably, a partition net is provided at the connection between the sewage discharge bin and the bottom of the fish breeding cage.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting the bullfrog breeding cage and the fish breeding cage as an upper and lower relative structure, the feed residues, frog skin and feces in the bullfrog breeding cage fall into the fish breeding cage and are eaten by saprophagous fish, which reduces the feeding and reduces the breeding cost, thereby improving the economic benefits of bullfrog breeding and reducing the pollution of feed residues to water bodies and the environment;

[0017] 2. Both bullfrog breeding cages and fish breeding cages are set in ponds or reservoirs by floating cage floats, and bullfrog breeding cages and fish breeding cages are set in upper and lower relative structures, which reduces the floor space and improves economic efficiency;

[0018] 3. Prevent bullfrogs from jumping out and escaping by setting a cover net on the top of the bullfrog breeding cage, and provide shade for bullfrogs in high temperature seasons; erect plastic sheds using plastic shed brackets to keep warm in low temperatures; collect undigested leftover bait and feces in the sewage bin, and discharge the leftover bait and feces from the sewage pipe by regularly opening the discharge valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the new environmentally friendly cage aquaculture system of the utility model;

[0020] Figure 2 This is a top view of the new environmentally friendly cage aquaculture system of the utility model;

[0021] Figure 3 It is a cross-sectional view of the sewage discharge bin and sewage discharge pipe of the utility model.

[0022] The markings in the figure correspond to the following:

[0023] 1-Outer frame of the cage; 2-Inner frame of the cage; 3-Bullfrog breeding cage; 4-Fish breeding cage; 5-Sewage bin; 6-Reinforcement bars; 7-Cage float; 8-Cover net; 9-Feed shielding net; 10-Plastic shed support; 11-Sewage pipe; 12-Discharge valve; 13-Partition net; 14-Spray pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 A new type of environmentally friendly cage culture system suitable for breeding bullfrogs in ponds and reservoirs, comprising a cage outer frame 1, a cage inner frame 2, a bullfrog breeding cage 3, a fish breeding cage 4 and a sewage discharge bin 5. The cage outer frame 1 and the cage inner frame 2 are floatingly arranged in a pond or a reservoir, the cage inner frame 2 is arranged inside the cage outer frame 1, and the bullfrog breeding cage 3 is fixed on the cage inner frame 2. The fish breeding cage 4 is fixed at the bottom of the cage outer frame 1, and is arranged above and below the bullfrog breeding cage 3, which reduces the floor space and improves the economic efficiency. The sewage discharge bin 5 is arranged at the sewage outlet at the bottom of the fish breeding cage 4, and is used to discharge residual bait and feces.

[0026] Preferably, the bullfrog breeding cage 3 is deployed in an area of ​​20% to 35% of the area of ​​the pond or reservoir, forming a profit-making and efficiency-enhancing model of breeding economic fish in ponds or reservoirs and breeding bullfrogs in cages.

[0027] See also Figure 1-2 The outer frame 1 of the net box is connected to the inner frame 2 of the net box by a plurality of ribs 6. In this embodiment, the outer frame 1 of the net box, the inner frame 2 of the net box and the ribs 6 are made of steel pipes, steel bars or bamboo.

[0028] Cage floats 7 are arranged between adjacent ribs 6. Cage floats 7 are used to adjust the water depth of bullfrog breeding cage 3. Cage floats 7 can be selected from foam, sealed plastic barrels, etc. The water depth can be adjusted by increasing or decreasing the number of cage floats 7. Bullfrog breeding cage 3 is 0.8 to 1.5 m high. When bullfrog breeding cage 3 is placed in a pond or reservoir, the water surface is 0.4 to 0.6 m away from the top. 50 to 80 bullfrogs are placed in bullfrog breeding cage 3. 2 The size of bullfrog seedlings is 80 to 150 pieces per catty, and the size of adult frogs is 3 to 9 taels per piece.

[0029] See also Figure 1 The top cover of the bullfrog breeding net cage 3 is provided with a cover net 8, which is used to prevent bullfrogs from jumping out and escaping, and to provide sunshade for bullfrogs in high temperature seasons. The bottom of the bullfrog breeding net cage 3 is a feed shielding net 9, which is used to prevent feed from floating out of the bullfrog breeding net cage 3 with water flow.

[0030] In this embodiment, the mesh size of the bullfrog breeding cage 3 is 1~3cm×1~3cm (1~2cm×1~2cm for juvenile frog breeding and 2~3cm×2~3cm for adult frog breeding), the mesh size of the cover net 8 pair is 2cm×2cm, the mesh size of the fish breeding cage 4 is 1.5cm×1.5cm; the mesh size of the feed shielding net 9 is 0.3~0.5cm×0.3~0.5cm.

[0031] A plurality of plastic shed brackets 10 are arranged at intervals across the top two edges of the inner frame 2 of the net cage. The plastic shed brackets 10 are used to erect a plastic shed, which plays a role of heat preservation at low temperatures.

[0032] Preferably, the fish farming cage 4 is funnel-shaped with a height of 1 to 1.5 m, so that the bait and feces can be gathered in the sewage discharge bin 5 at the bottom of the fish farming cage 4. The number of saprophagous fish (such as dace) stocked in the fish farming cage 4 is 30 to 40 per m. 2 .

[0033] See also Figure 1-3 The sewage bin 5 is connected to a sewage pipe 11 at one end relative to the fish breeding net cage 4, and a discharge valve 12 is arranged on the discharge pipe. A partition net 13 is arranged at the connection between the sewage bin 5 and the bottom of the fish breeding net cage 4. The partition net 13 is a hole-shaped structure to prevent saprophytic fish from mistakenly entering the sewage bin 5. The undigested bait and feces are collected through the sewage bin 5, and the discharge valve 12 is opened regularly to discharge the bait and feces from the sewage pipe 11 to a designated place for treatment (such as fermentation and drying to make biofertilizer).

[0034] A plurality of spray pipes 14 are arranged on the outer frame 1 of the cage, and the spray pipes 14 are connected to a pump, through which water is pumped and sprayed into the bullfrog breeding cage 3 through the spray pipes 14, so as to cool the bullfrog in the high temperature season.

[0035] In summary, the utility model arranges the bullfrog breeding cage 3 and the fish breeding cage 4 as an upper and lower relative structure, so that the feed residues, frog skins and feces in the bullfrog breeding cage 3 fall into the fish breeding cage 4 and are eaten by saprophytic fish, thereby reducing the feeding and reducing the breeding cost, thereby improving the economic benefits of bullfrog breeding and reducing the pollution of feed residues to water bodies and the environment.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new environmentally friendly cage culture system suitable for breeding bullfrogs in ponds and reservoirs, characterized by: The invention comprises an outer cage frame (1), an inner cage frame (2), a bullfrog breeding cage (3), a fish breeding cage (4) and a sewage discharge bin (5). The outer cage frame (1) and the inner cage frame (2) are arranged in a floating manner in a pond or a reservoir. The inner cage frame (2) is arranged inside the outer cage frame (1). The bullfrog breeding cage (3) is fixed on the inner cage frame (2). The fish breeding cage (4) is fixed on the bottom of the outer cage frame (1) and arranged above and below the bullfrog breeding cage (3). The sewage discharge bin (5) is arranged at the sewage discharge port at the bottom of the fish breeding cage (4).

2. The novel environmentally friendly cage culture system according to claim 1 is characterized by: The net cage outer frame (1) and the net cage inner frame (2) are connected via a plurality of ribs (6), and net cage floats (7) for adjusting the water immersion depth of the net cage are arranged between adjacent ribs (6).

3. The novel environmentally friendly cage culture system according to claim 1 is characterized by: The bullfrog breeding cage (3) is placed in an area of ​​20% to 35% of the area of ​​the pond or reservoir.

4. The novel environmentally friendly cage culture system according to claim 1 is characterized by: When the bullfrog breeding cage (3) is placed in a pond or a reservoir, the water surface is 0.4 to 0.6 m away from the top thereof.

5. The novel environmentally friendly cage culture system according to claim 3 is characterized by: The top cover of the bullfrog breeding net cage (3) is provided with a cover net (8).

6. The novel environmentally friendly cage culture system according to claim 1 is characterized by: The bottom of the bullfrog breeding cage (3) is a feed shielding net (9).

7. The novel environmentally friendly cage culture system according to claim 1 is characterized by: A plurality of plastic shed brackets (10) arranged at intervals are arranged across the top two edges of the inner frame (2) of the net box.

8. The novel environmentally friendly cage culture system according to claim 1 is characterized by: The fish breeding cage (4) is funnel-shaped.

9. The novel environmentally friendly cage culture system according to claim 1 is characterized by: The sewage discharge bin (5) is connected to a sewage discharge pipe (11) at one end opposite to the fish culture cage (4), and a discharge valve (12) is arranged on the discharge pipe.

10. The novel environmentally friendly cage culture system according to claim 9 is characterized in that: A partition net (13) is provided at the connection between the sewage discharge bin (5) and the bottom of the fish breeding net cage (4).

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