An intensive and efficient farming system and method for *Sinocyclocheilus edulis*

Abstract

A highly efficient and intensive aquaculture system and method for *Bombyx mori* (a type of whelk) is disclosed, relating to the field of aquaculture technology. It comprises a multi-layered support frame and a novel aquaculture box. The novel aquaculture box has a concave feeding trough in the center, with perforated layers on both sides at the bottom. Above these perforated layers is a sand layer for *Bombyx mori* habitat, with the sand layer surface level with the top of the feeding trough. Upper and lower water inlet pipes are located at one end of the aquaculture box, and upper and lower drainage pipes are located at the other end. The system also includes a circulating water treatment system and a pure oxygen generation system. Wastewater from each aquaculture box is collected by the drainage system and then treated through the circulating water treatment system, undergoing filtration, biological purification, and nitrogen and phosphorus removal. This treated water, combined with pure oxygen, is then used for the recirculated aquaculture of *Bombyx mori*. During the aquaculture period, only a certain amount of fresh seawater needs to be periodically added to ensure the healthy and normal growth of the *Bombyx mori*. This system is suitable for intensive aquaculture in single-story indoor buildings or multi-story buildings, offering high land utilization, low water consumption, resistance to typhoons, and minimal impact from environmental changes, achieving efficient and stable aquaculture of *Bombyx mori*.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, and in particular to an intensive and efficient aquaculture system and method for *Bambusa multiplex*, a sand-dwelling aquatic animal. Background Technology

[0002] The Oriental whelk is an important economically important marine aquaculture species in the southeastern coastal areas of my country. It is highly adaptable to high temperatures, grows rapidly, has a short market season, and commands a high market price. It is widely cultivated in coastal areas such as Hainan, Guangdong, Guangxi, and Fujian, becoming a distinctive marine aquaculture species. Currently, the main farming method for Oriental whelks is single-layer cultivation in cement ponds under outdoor shade structures. Therefore, this method is highly susceptible to environmental changes; typhoons and heavy rains often cause irreversible losses. Furthermore, surface cultivation results in low land utilization, impacting overall profitability. In addition, Oriental whelks are burrowing organisms, requiring a layer of sand for their habitat in the pond during normal cultivation. Currently, feeding them often involves placing miscellaneous fish on the surface of the sand layer. As uneaten food accumulates and decomposes in the sand, the sand environment deteriorates, leading to the rapid proliferation of pathogenic microorganisms and increasing the risk of diseases. When using formulated feed, the feed particles disperse more easily in the water and remain in the sand, exacerbating the above problems. Therefore, the existing farming model is one of the main reasons for the poor application of artificial compound feed. To address these issues, it is necessary to establish a new farming model and method to promote the development and transformation of the Conch farming industry towards intensive, efficient, healthy, and stable practices. Summary of the Invention

[0003] The purpose of this invention is to provide an intensive and efficient aquaculture system and method for *Bambusa multiplex*, establishing a new aquaculture model that can solve the problems of rapid deterioration of the sandy environment caused by existing feeding methods and insufficient large-scale application of artificial compound feed. This maintains a good habitat environment within the *Bambusa multiplex* aquaculture ponds, effectively reduces the harm and impact of external environmental changes on *Bambusa multiplex* aquaculture, improves land utilization, reduces water consumption, and promotes the standardized, intensive, efficient, stable, and healthy development of the *Bambusa multiplex* aquaculture industry.

[0004] This invention provides an intensive and efficient breeding system for Oriental whelks, including a three-dimensional multi-layer support frame, upper and lower layer water inlet and drainage systems, a circulating water treatment system, a pure oxygen generation system, and several novel breeding boxes;

[0005] The aforementioned novel breeding boxes are placed in layers on a three-dimensional multi-layer support frame and supported by the three-dimensional multi-layer support frame. Each novel breeding box has a feeding trough for snails in the center. The two sides of the feeding trough are, from bottom to top, a mesh hollow layer, a silk screen and a sand layer. The silk screen is placed on the hollow layer to hold the sand layer. The surface of the sand layer is flush with the upper end of the feeding trough. A ring of anti-climbing railing is set vertically on the wall of the breeding box at a suitable water depth.

[0006] The upper and lower water inlet system consists of an inlet pipe and a drain pipe. Two inlet pipes are centrally located at the bottom of the hollow layer on both sides of the feeding trough at the water inlet end of the breeding box. Drain holes are evenly drilled on both sides of the inlet pipes. An inlet pipe is located above the feeding trough at the water inlet end. Drain pipes are drilled and connected to the bottom center of the feeding trough at the rear end of the breeding box and the hollow layer on both sides, as well as at the lower edge of the anti-climb fence above the bottom.

[0007] The circulating water treatment system includes a filtration device, a biochemical reaction device, a sterilization and disinfection device, and a temperature control device, which are connected in sequence. The pure oxygen generation system dissolves the generated oxygen in the seawater treated by the circulating water treatment system and delivers it to the aquaculture tanks through the inlet pipe for aquaculture use.

[0008] The new type of breeding box is generally 45-50cm deep, with a hollow layer 8-10cm high and a sand layer 3-5cm thick.

[0009] The anti-climb fence is made of PP board with a thickness of 3-5mm and a width of about 5cm, and is about 25cm away from the surface of the sand layer.

[0010] The angle of the slope on both sides of the feeding trough is generally between 30 and 45°, the depth of the feeding trough is 5 to 7 cm, and the plane area of ​​the feeding trough accounts for 1 / 6 to 1 / 5 of the total area of ​​the breeding box.

[0011] The water inlet pipe spans the bottom of the rearing tank, with a plug at one end. Several drain holes are evenly drilled on both sides of the pipe. Water drains from these holes and, under the pressure of the water pump, forms an upward flow, continuously backwashing the sand layer. The upper water inlet pipe, located above the feeding trough, quickly adds water and flushes out any remaining feed. The flushed feed enters the drain pipe and is separated by the solid-liquid separation device of the circulating water treatment system. Additionally, each water inlet pipe has an individual regulating switch on the outside of the rearing tank.

[0012] Each drainage pipe is connected to two drainage holes (lower and upper). Each lower drainage hole has an adjustment switch on the outer side of the connecting pipe. The opening of the upper drainage hole inside the breeding box is wrapped with a silk screen to prevent snails from entering the drainage pipe.

[0013] The height between adjacent layers of the three-dimensional multi-layer support is 75-80cm.

[0014] This invention provides an intensive and efficient method for the cultivation of *Bambusa multiplex*, comprising the following steps:

[0015] 1) After setting up and debugging the aquaculture system, disinfect and clean the aquaculture box and sand layer, open the lower drainage pipe switch to drain the disinfection and cleaning wastewater, close the upper and lower drainage pipe switches, inject fresh filtered seawater, and release healthy snail seedlings to start aquaculture.

[0016] 2) When feeding, place the feed in the feeding trough and clean up any uneaten feed promptly after the snails have finished eating. If feeding with fresh fish or other natural feed, remove any remaining bones, close the inlet pipe and open the bottom drain pipe to lower the water level below the feeding trough opening. Then, open the lower drain pipe of the feeding platform and the upper inlet pipe of the feeding trough to drain all remaining residue. If feeding with formulated feed, there is no need to clean up any remaining bones; simply drain the remaining feed from the feeding trough. Due to the specially designed feeding trough feeding mode, the remaining feed has virtually no impact on the sandy environment. In addition, combined with pure oxygen and bottom convection water intake, the feces produced by the snails in the sandy layer can be decomposed and discharged in a timely manner, maximizing the maintenance of a good habitat for snail farming, reducing the occurrence of diseases during snail farming, and improving the survival rate of snails.

[0017] 3) During the breeding process, drain all the water from the bottom of the breeding tank every 2 or 3 days and then add seawater again. Regularly test the water quality during the breeding period, and replenish fresh seawater in the circulating water system in a timely manner according to a certain proportion.

[0018] Compared with the prior art, the present invention has the following outstanding technical effects:

[0019] 1. This invention features a unique breeding box with a dedicated feeding platform, which can effectively reduce the pollution of the sand layer where the snails inhabit by uneaten feed and enable the widespread application of artificial compound feed.

[0020] 2. This invention adopts a three-dimensional, multi-level recirculating aquaculture system, which is suitable for indoor single-story buildings or multi-story buildings. It can greatly improve land utilization, reduce water consumption, maintain the stability of the indoor environment, and reduce the damage and impact of extreme weather such as typhoons.

[0021] 3. This invention uses pure oxygen and bottom water intake in the breeding tank, which can increase the oxygen content of the water and increase the breeding density of the East Wind Snail. Furthermore, bottom convection can promptly remove the feces and other organic decomposition products produced by the East Wind Snail in the sand layer, thus maintaining the stability of the East Wind Snail's habitat.

[0022] 4. This invention can maintain the controllability of water quality and environment, effectively reduce the occurrence of diseases, increase the survival rate of aquaculture, facilitate management, and has a high degree of ecological and environmental protection, making it suitable for large-scale and intensive production applications. Attached Figure Description

[0023] Figure 1 This is a schematic diagram showing the representative units of the intensive and efficient aquaculture system for the conch described in this invention.

[0024] Figure 2 This is a three-dimensional schematic diagram of the multi-layered support structure of the Dongfeng snail intensive and efficient aquaculture system described in this invention.

[0025] Figure 3 This is a schematic diagram of the recirculating water system in the intensive and efficient aquaculture system for the Oriental Wind Snail described in this invention.

[0026] Figure 4 This is a three-dimensional schematic diagram of the breeding box of the Dongfeng snail intensive and efficient breeding system described in this invention.

[0027] Figure 5 This is a side view of the drainage pipe of the breeding box in the intensive and efficient breeding system for the conch described in this invention.

[0028] exist Figures 1-5 The markings in the diagram represent: 1. Three-dimensional multi-layer support frame; 2. New type of breeding box; 3. Water layer; 4. Sand layer; 5. Hollow layer; 6. Upper water inlet pipe; 7. Lower water inlet pipe; 8. Feeding trough; 9. Drainage pipe; 10. Anti-climb fence; 11. Drainage hole; 12. Lower drainage pipe hole; 13. Feeding trough sewage pipe hole; 14. Upper drainage pipe hole; 15. Water pipe switch; 16. Water inlet pipe; 17. Pure oxygen generation system; 18. Circulating water treatment system; 19. Filtration device; 20. Biochemical reaction device; 21. Ultraviolet sterilization device; 22. Temperature control device. Detailed Implementation

[0029] The following embodiments will further illustrate the present invention with reference to the accompanying drawings.

[0030] This invention's high-efficiency aquaculture system firstly includes a three-dimensional, multi-layered aquaculture facility, consisting of a three-dimensional multi-layered support frame and a novel aquaculture box. The novel aquaculture box features an innovative concave feeding trough in the center, with perforated layers on both sides at the bottom. Above these perforated layers is a sand layer for the whelks to inhabit, with the sand layer surface at the same level as the top of the feeding trough. Upper and lower water inlet pipes are installed at one end of the aquaculture box, while upper and lower drainage pipes are installed at the other end. Secondly, the high-efficiency aquaculture system also includes a circulating water treatment system and a pure oxygen generation system. The wastewater from each aquaculture box is collected and gathered by the drainage system and then uniformly treated through the circulating water treatment system, including filtration, ammonia nitrogen removal, and sterilization. This treated water is then combined with pure oxygen for the whelk aquaculture system to provide for continuous use. During the aquaculture period, only a certain amount of fresh seawater needs to be periodically added to ensure the healthy and normal growth of the whelks.

[0031] See Figures 1-5 As shown, the embodiment of the intensive and efficient breeding system for the conch of the present invention includes a new type of breeding box 2, a three-dimensional multi-layer support 1, an upper and lower layer water inlet and drainage system, a circulating water treatment system and a pure oxygen generation system.

[0032] The breeding box 2 is designed with a feeding trough 8 suitable for feeding the snails. An upper water inlet pipe 6 is set above the feeding trough 8. The two sides of the feeding trough 8 are divided into a hollow layer 5 and a sand layer 4 for the snails to inhabit, from bottom to top. A layer of silk mesh is placed on the hollow layer 5 to hold sand. The surface of the sand layer is on the same plane as the upper end of the feeding trough. A water inlet pipe 16 is laid under the hollow layer 5. The water inlet pipe is connected to the lower water inlet pipe 7. Several drainage holes 11 are evenly drilled on both sides of the water inlet pipe 16. In addition, all the breeding boxes 2 are supported by a three-dimensional multi-layer support frame 1. At the bottom of the hollow layer 5 at the rear end of the breeding box 2 and at the bottom of the feeding trough 8, there are lower drainage pipe holes 12 and feeding trough sewage pipe holes 13, respectively. At the upper end of the breeding box 2, there is a ring of anti-climbing railing 10 (the upper edge of the upper drainage holes is perpendicular to the breeding box wall). The lower edge of the anti-climbing railing 10 has an upper drainage pipe hole 14. All drainage pipe holes are connected by drainage pipes 9. Furthermore, the upper water inlet pipe 6, water inlet pipe 16, and lower drainage pipe 12 on the outside of the breeding box 2 are all equipped with a water pipe control switch 15. Oxygen is supplied by a pure oxygen generation system 17. The generated oxygen is mixed with seawater and injected into the breeding box 2 through the water inlet pipe 16. When the breeding box 2 is full of seawater, the excess seawater flows out through the upper drainage pipe hole 14. After discharge, the water is treated by a circulating water treatment system 18 and can be recycled. The breeding boxes are supported by a three-dimensional multi-layer support frame.

[0033] The inlet and outlet pipes constitute an upper and lower water supply system. Two inlet pipes are centrally located at the bottom of the perforated layers on both sides of the feeding trough at the water inlet end of the breeding box, and drainage holes are evenly drilled on both sides of the pipes. At the same time, an inlet pipe is installed above the feeding trough at the water inlet end. In addition, holes are drilled and connected to the outlet pipes at the bottom center of the feeding trough at the rear end of the breeding box and the perforated layers on both sides, as well as at the lower edge of the anti-climb fence above the bottom.

[0034] The pure oxygen generation system can be a commercially available industrial pure oxygen generator for aquaculture. The pure oxygen generation system dissolves the generated oxygen in the treated seawater, which is then used for aquaculture.

[0035] The circulating water treatment system includes a filtration device 19, a biochemical reaction device 20, an ultraviolet sterilization device 21, and a temperature control device 22, etc., and each part can use commercially available industrial equipment related to aquaculture. Seawater discharged from the aquaculture tanks is filtered by the filtration device 19 to remove uneaten feed, feces, and other particulate matter. The filtered liquid is then processed by the biochemical reaction device 20 to remove harmful substances such as ammonia and nitrogen. The ultraviolet sterilization device 21 is used to kill bacteria in the seawater, and the temperature control device 22 is used to regulate the aquaculture water temperature. As a preferred embodiment, such as... Figures 1-3 As shown, the new type of breeding box 2 is 45-50cm deep, with a hollow layer 5 8-10cm high, a sand layer 4 3-5cm thick, and an anti-climb fence 10 3-5mm thick and about 5cm wide; the feeding trough 8 has a slope angle of 30-45° on both sides, a depth of 5-7cm, and its plane area accounts for 1 / 6 to 1 / 5 of the total area of ​​the breeding box; a drainage hole 11 is drilled every 15cm on both sides of the water inlet pipe 16, and the diameter of the drainage hole 11 is 4mm; the height of each layer of the three-dimensional multi-layer support is 75-80cm. Figure 1 In the diagram, 3 is marked as the water layer.

[0036] The method of using the Dongfeng snail intensive and efficient aquaculture system includes the following steps:

[0037] 1) After setting up and debugging the aquaculture system, disinfect and clean the aquaculture tank and sand layer, open the lower drain pipe switch to drain the disinfection and cleaning wastewater, close the upper and lower drain pipe switches, refill with fresh seawater, and then release healthy snail seedlings to start aquaculture.

[0038] 2) When feeding, place the feed in the feeding trough and clean up any uneaten feed promptly after the snails have finished eating. If feeding with fresh fish or other natural feed, first remove any remaining bones, then close the inlet water pipe and open the bottom drain pipe to lower the water level below the feeding trough opening. Then open the lower drain pipe of the feeding platform and the upper inlet water pipe of the feeding trough to drain all remaining residue. If feeding with formulated feed, there is no need to clean up any remaining bones; simply drain the remaining feed from the feeding trough. Due to the specially designed feeding trough, the remaining feed has virtually no impact on the sandy environment. In addition, combined with pure oxygen and bottom convection water intake, the feces produced by the snails in the sandy layer can be decomposed and discharged in a timely manner, maximizing the maintenance of a good habitat for snail farming, reducing the occurrence of diseases during snail farming, and improving the survival rate of snails.

[0039] 3) During the breeding process, drain all the water from the bottom of the breeding tank every 2 or 3 days and then add seawater again. During the breeding period, conduct regular water quality monitoring and replenish fresh seawater in the circulating water system in a timely manner according to a certain proportion.

[0040] This invention is particularly suitable for intensive aquaculture in single-story indoor buildings or multi-story buildings. It not only has high land utilization and low water consumption, but also has reliable typhoon resistance, stable and controllable indoor environment, and is less affected by environmental changes, enabling efficient and stable aquaculture of *Bambusa multiplex*. In addition, this invention sets up a special feeding trough for *Bambusa multiplex* aquaculture, and simultaneously supplies seawater through a water inlet pipe in the hollow layer below the sand layer. Seawater continuously enters the upper part of the sand layer from the hollow layer, which can continuously clean the sand layer and avoid the rapid deterioration of the sand layer environment and the occurrence of diseases caused by traditional aquaculture methods. This can promote the large-scale application of artificial compound feed for *Bambusa multiplex*.

[0041] The above description only illustrates the components of the intensive and efficient aquaculture system for *Bambusa multiplex*. In practical applications, multiple sets of three-dimensional, multi-level aquaculture facilities can be assembled according to the available space, and equipped with corresponding circulating water treatment systems and pure oxygen generation systems for *Bambusa multiplex* aquaculture. The above description is not intended to limit the invention, nor is the invention limited to the examples given. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this invention should also be considered within the protection scope of this invention.

Claims

1. An intensive and efficient aquaculture system for *Sinocyclocheilus edulis*, characterized in that... It includes a three-dimensional multi-layer support structure, upper and lower water inlet and drainage systems, a circulating water treatment system, a pure oxygen generation system, and several breeding boxes; The several breeding boxes are placed on a three-dimensional multi-layer support and supported by the three-dimensional multi-layer support. Each breeding box has a feeding trough for snails in the center. The two sides of the feeding trough are, from bottom to top, a mesh hollow layer, a silk screen and a sand layer. The silk screen is placed on the hollow layer to hold the sand layer. The surface of the sand layer is flush with the top of the feeding trough. A ring of anti-climbing railing is set vertically on the wall of the breeding box at a suitable water depth. The upper and lower water inlet system consists of an inlet pipe and a drain pipe. Two inlet pipes are centrally located at the bottom of the hollow layer on both sides of the feeding trough at the water inlet end of the breeding box. Drain holes are evenly drilled on both sides of the inlet pipes. An inlet pipe is located above the feeding trough at the water inlet end. Drain pipes are drilled and connected to the bottom center of the feeding trough at the rear end of the breeding box and the hollow layer on both sides, as well as at the lower edge of the anti-climb fence above the bottom. The circulating water treatment system includes a filtration device, a biochemical reaction device, a sterilization and disinfection device, and a temperature control device, which are connected in sequence. The pure oxygen generation system dissolves the generated oxygen in the seawater treated by the circulating water treatment system and transports it to the aquaculture tank for aquaculture use through the inlet pipe. The angle of the slope on both sides of the feeding trough is 30-45°, the depth of the feeding trough is 5-7 cm, and the plane area of ​​the feeding trough accounts for 1 / 6 to 1 / 5 of the total area of ​​the breeding box. The water inlet pipe spans the bottom of the breeding tank, with a plug at the end. Several drainage holes are evenly drilled on both sides of the water inlet pipe. Water is discharged from the drainage holes of the water inlet pipe and forms an upward flow under the pressure driven by the water supply pump, which continuously backwashes the sand layer. The upper water inlet pipe located above the feeding trough is used to quickly add water and flush out residual feed in the feeding trough. The residual feed is flushed into the drainage pipe and separated by the solid-liquid separation device of the circulating water treatment system. In addition, each water inlet pipe is equipped with an individual adjustment switch on the outside of the breeding tank.

2. The intensive and efficient aquaculture system for *Conophytum edulis* as described in claim 1, characterized in that... The breeding box is 45-50 cm deep, with a hollow layer 8-10 cm high and a sand layer 3-5 cm thick.

3. The intensive and efficient aquaculture system for *Conch edulis* as described in claim 1, characterized in that... The anti-climb fence is made of PP board with a thickness of 3-5 mm and a width of about 5 cm, and is about 25 cm away from the surface of the sand layer.

4. The intensive and efficient aquaculture system for *Cyprinus edulis* as described in claim 1, characterized in that... Each drainage pipe is connected to two drainage holes, one above and one below. Each drainage hole on the lower layer has an adjustment switch on the connecting pipe outside. The opening of the connecting pipe of the upper drainage hole inside the breeding box is wrapped with a layer of silk mesh to prevent snails from entering the drainage pipe.

5. The intensive and efficient aquaculture system for *Cyprinus edulis* as described in claim 1, characterized in that... The height between two adjacent layers of the three-dimensional multi-layered support is 75-80 cm.

6. A method for intensive and efficient farming of *Sinocyclocheilus edulis*, characterized in that... The intensive and efficient aquaculture system for *Sinocyclocheilus edulis* as described in claim 1 includes the following steps: 1) After setting up and debugging the aquaculture system, disinfect and clean the aquaculture box and sand layer, open the lower drainage pipe switch to drain the disinfection and cleaning wastewater, close the upper and lower drainage pipe switches, inject fresh filtered seawater, and release healthy snail seedlings to start aquaculture. 2) When feeding, place the feed in the feeding trough and clean up any uneaten feed promptly after the snails have finished eating. If feeding with fresh, natural fish, remove any remaining fish bones, close the inlet pipe and open the bottom drain pipe to lower the water level below the feeding trough opening. Then, open the lower drain pipe of the feeding platform and the upper inlet pipe of the feeding trough to drain all remaining residue. If feeding with formulated feed, there is no need to clean up any remaining bones; simply drain the remaining feed from the feeding trough. Due to the specially designed feeding trough feeding mode, the remaining feed has virtually no impact on the sand layer environment. In addition, combined with pure oxygen and bottom convection water intake, the feces produced by the snails in the sand layer can be decomposed and discharged in a timely manner, maximizing the maintenance of a good habitat for snail farming, reducing the occurrence of diseases during snail farming, and improving the survival rate of snails. 3) During the breeding process, drain all the water from the bottom of the breeding tank every 2 or 3 days and then add seawater again. Regularly test the water quality during the breeding period, and replenish fresh seawater in the circulating water system in a timely manner according to a certain proportion.

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