Bionic breeding system for giant salamanders

Abstract

The invention discloses a giant salamander imitated ecological breeding system which comprises a breeding device which comprises a multi-layer vertical breeding frame, a breeding cabin arranged on the multi-layer vertical breeding frame, and a breeding cabin arranged on the multi-layer vertical breeding frame. The water circulation purification device is used for purifying water and circularly supplying water to the cultivation cabin and the breeding cabin; the self-adjusting illumination device is used for creating an illumination environment to promote growth and development of the giant salamanders; the temperature control device is used for controlling the water body temperature; the control device comprises a controller and a display screen, and the controller is electrically connected with the display screen, the water purification circulating device, the self-adjusting illumination device and the temperature control device; the power supply is electrically connected with the water body circulating purification device, the self-adjusting illumination device, the temperature control device and the control device. The device has the advantages that the device is simple in structure and convenient in pipeline butt joint, a field growth environment can be simulated, individual stress reaction caused by manual operation is reduced, water quality, temperature, humidity, illumination and an inhabiting environment can be accurately controlled, and the device is suitable for artificial breeding of giant salamander species.

Description

Technical Field

[0001] This invention relates to the field of amphibian aquaculture technology, to a biomimetic aquaculture system for the genus *Andrias davidianus*, and more specifically to a biomimetic aquaculture system for the genus *Andrias davidianus* with ecological self-purification function. Background Technology

[0002] There are many species of poikilothermic amphibians and reptiles with economic value and aquaculture potential, such as frogs, salamanders, and salamanders (giant and small). Currently, global warming is threatening the survival of amphibians worldwide (Shadle, EJ, Hopkins, WA, Belden, LK, Hallmark, MA, & Mims, MC (2023). Experimental warming and drying act independently on developmental responses for two amphibian species). Freshwater Biology , 68(10), 1647–1659.), has a great influence on the genus *Salmonella* of the order Caudata in amphibians. Currently, all species of the genus *Andrias davidianus* are national protected animals in my country. In recent years, under the protection of researchers and staff of relevant protected areas, artificial breeding has been carried out to protect some species of *Andrias davidianus*. For example, researchers have explored artificial breeding of *Andrias davidianus* and *Andrias davidii* (Ma Liandi, Ma Dekun, Gao Yi. (1994). Early development of *Andrias davidii* from Qianshan. Zoological Journal, (02), 46-51). For *Andrias davidianus*, experts have proposed artificial breeding methods for protection (Chen Cangsong, Yang Jia, Yu Lipeng & Guo Rui. (2018). Study on reproductive biology of critically endangered *Andrias davidianus*. (eds.) Proceedings of the 13th Congress and Symposium of the Zhejiang Zoological Society (pp. 59). Zhejiang Natural History Museum; Longwangshan Nature Reserve Administration; Qingliangfeng National Nature Reserve Administration). During the research process, researchers encountered the problem that species of the genus *Andrias davidianus* need to land in time after metamorphosis, otherwise they will die. Furthermore, after metamorphosis, *Andrias davidianus* may die due to difficulty in finding food (Ning Meihong, Chi Hong, Chen Yu, Yang Bo, Wu Zhengjun & Huang Huayuan. (2021). Preliminary study on individual development characteristics of artificially bred *Andrias davidianus*. Sichuan Journal of Zoology, 40 (02), 196-202.). In artificial breeding of *Andrias davidianus* species, except for the juvenile stage, the sub-adult stage, the adult reproductive stage, and the hibernation stage all take place in a relatively humid terrestrial environment. Currently, the breeding process not only requires providing breeding containers with suitable air humidity, but also necessitates frequent relocation based on individual growth status. Juveniles, sub-adults, adults, and individuals in the reproductive stage are moved to corresponding breeding containers. This not only increases the difficulty of comprehensively observing the ecological habits and behavioral characteristics of *Andrias davidianus* species, but also increases artificial breeding costs, reduces breeding efficiency, and leads to increased human intervention during the breeding process. The process involves many operations, which can easily cause excessive stress to the salamander species and affect their normal development. For example, Chinese patent CN110663636A discloses a salamander breeding system, which includes a support frame, a main liquid supply pipe, a return liquid pipe, a regulating pipe, a filter box, and a breeding tank. It can provide a clean and high-quality breeding environment for the Anji salamander through circulating water supply. However, the breeding tank structure used in the above-mentioned salamander breeding system is similar to that of a fish tank, which can only provide a single aquatic breeding environment. Moreover, each breeding tank is independent of the others. The breeding tank drains through a siphon pipe, which cannot remove the dirt deposited in the breeding tank in a timely and thorough manner, thus affecting the water quality during the breeding process.For example, Chinese patent CN202406824U discloses a novel crab farming structure. Each farming structure has independent water inlet and outlet connected to water inlet and outlet pipes. This means that each row of the stacked structure requires water inlet and outlet pipes, and multiple rows are then stacked. To prevent leakage, the outlets and outlets must be securely connected, making the installation very cumbersome and the pipe layout extremely complicated. Furthermore, the farming of the Anji salamander has very high requirements for water quality, temperature, humidity, light, and habitat, especially during the breeding season, when a suitable breeding environment is needed. Throughout the farming process, environmental parameters such as water quality, temperature, and humidity need to be regularly monitored to ensure a stable farming environment. Excessive human intervention can easily trigger stress in the animals, negatively impacting their survival rate. Currently, there is no specific eco-friendly farming system for the Anji salamander, especially for poikilothermic amphibians. Summary of the Invention

[0003] In view of the existing problems and technical shortcomings in the breeding process mentioned above, the purpose of this application is to provide a simple, convenient pipeline layout system that can simulate the wild growth environment, reduce individual stress response caused by artificial operation, and accurately control water quality, temperature, humidity, light and habitat environment suitable for the genus *Andrias davidianus*.

[0004] To solve the above problems, the technical solution adopted in this application is: This invention provides a biomimetic aquaculture system for the genus *Andrias davidianus*, comprising: The breeding equipment includes a multi-layer vertical breeding rack, a breeding chamber set on the multi-layer vertical breeding rack for breeding species of the genus *Andrias davidianus*, and a breeding chamber set on the multi-layer vertical breeding rack for breeding adult *Andrias davidianus*. A water circulation and purification device is used to purify and regulate water and circulate water to the breeding and rearing compartments placed on the aquaculture equipment. Self-adjusting lighting device is used to create a lighting environment to promote the growth and development of baby salamanders; Temperature control device, used to control the water temperature in aquaculture equipment; The control device includes a controller and a display, wherein the controller is electrically connected to the display, the water purification and circulation device, the self-adjusting lighting device, and the temperature control device; and The power supply is electrically connected to the water circulation and purification device, the self-adjusting lighting device, the temperature control device, and the control device, and is used to supply power to the water circulation and purification device, the self-adjusting lighting device, the temperature control device, and the control device.

[0005] Preferably, the multi-layer vertical breeding rack includes a support frame and horizontal partitions spaced vertically on the support frame. The horizontal partitions divide the support frame into multiple layers, and the space between two opposing horizontal partitions defines a breeding space for placing the cultivation chambers and / or propagation chambers. The multi-layer vertical breeding rack of this application is a three-dimensional spatial structure. By dividing it into multiple layers through horizontal partitions, it allows for the stacking and combination of cultivation chambers and propagation chambers, saving breeding space and increasing breeding density.

[0006] Preferably, the cultivation chamber includes an aquatic cultivation room simulating the aquatic cultivation environment of *Andrias davidianus* species and a terrestrial cultivation room located above the aquatic cultivation room. The terrestrial cultivation room contains a first planting box planted with aquatic plants simulating the terrestrial cultivation environment of *Andrias davidianus* species. A gentle slope for creating an amphibious environment is provided between the aquatic and terrestrial cultivation rooms. The top of the slope extends to the edge of the planting box, and the bottom of the slope extends to the bottom of the aquatic cultivation room. This application, by providing a gentle slope between the aquatic and terrestrial cultivation rooms, can create an amphibious environment while facilitating the movement of *Andrias davidianus* species within their territory, thereby improving cultivation efficiency.

[0007] More preferably, the bottom surface of the first planting box and the cultivation chamber defines a first habitat space. The bottom of the first habitat space can be processed into a regular or irregular hollow structure, such as a tunnel structure or a hollow structure, to increase the complexity and biomimicry of the aquatic cultivation environment, which helps the ecological adaptability and behavioral characteristics of the salamander species. At the same time, it reduces human intervention in the cultivation process, is less likely to cause stress in individuals, and helps to improve the survival rate of individuals.

[0008] Preferably, the breeding chamber includes a detachable partition and a second planting box. When the partition is inserted into the breeding chamber, it divides the inner cavity of the breeding chamber into two identical breeding rooms. The second planting box contains aquatic plants used to simulate the terrestrial breeding environment of the salamander species.

[0009] More preferably, the partition can be arranged along the length of the breeding chamber or along the width of the breeding chamber, as long as it can divide the breeding chamber into two parallel breeding rooms.

[0010] Preferably, the second planting box has a ramp on its side, the bottom of which extends to the bottom of the breeding compartment. This is used to create an aquatic and terrestrial environment while facilitating the movement of salamander species within the area to improve breeding efficiency.

[0011] Preferably, the breeding chamber is further provided with a second atomizer, which is electrically connected to the controller and is used to regulate humidity.

[0012] Preferably, the top of the breeding chamber is provided with a rain shower device, which has a plurality of rain shower holes to simulate the effect of rain in the wild.

[0013] Preferably, the second planting box and the bottom surface of the breeding chamber define a second habitat space. The bottom of the first habitat space 127 can be processed into a tunnel-like structure, a hollow structure, or other regular or irregular hollow structures to increase the complexity and biomimicry of the aquatic breeding environment, which helps improve the ecological adaptability and behavioral characteristics of the salamander. At the same time, it reduces human intervention in the breeding process, is less likely to trigger individual stress responses, and helps improve the survival rate of individuals.

[0014] Preferably, the walls of the cultivation chamber are provided with a first water outlet channel and a first water inlet channel connecting to the aquatic cultivation room; the breeding chamber is provided with a second water outlet channel and a second water inlet channel connecting to the breeding room, and the outer ends of the first water outlet channel, the first water inlet channel, the second water outlet channel, and the second water inlet channel are all equipped with docking joints; a baffle is provided at the rear edge of the horizontal partition of the multi-layer vertical breeding rack, and several quick-connect water inlet connectors and quick-connect water outlet connectors are provided at intervals on the baffle for plugging and mating with the docking joints. The quick-connect water inlet connectors and quick-connect water outlet connectors correspond one to one and are alternately arranged on the baffle, respectively sealing and connecting with the docking joints aligned front and rear.

[0015] Preferably, the upper surface of each layer of the horizontal partition is provided with several guiding devices at intervals to guide the cultivation chamber or breeding chamber into the cultivation space from front to back.

[0016] More preferably, the upper surface of each layer of the horizontal partition is provided with several guide grooves, and a guiding device is installed in the guide grooves. The guiding device includes several parallel cylindrical conveyor rollers, which can quickly and accurately guide the cultivation or breeding compartments into place. After the cultivation or breeding compartments are guided into place, the docking joints on the cultivation or breeding compartments are sealed and fixed with the front and rear aligned docking joints, so that the cultivation or breeding compartments form a breeding compartment network. This simulates flowing water during the breeding process, and at the same time, the sediment generated during the breeding process can be continuously discharged during the continuous water inflow and outflow process, preventing stagnant water and ensuring uniform water quality in each compartment, which is conducive to improving breeding efficiency.

[0017] Preferably, the water circulation and purification device includes: The water circulation unit is used to connect to an external water source to circulate water to the aquaculture device; The water treatment unit, connected to the outlet of the water circulation unit, is used to remove impurities from the water; and The water quality regulation unit is connected to the water treatment unit and the water circulation unit. It is used to regulate the water quality and return the regulated water to the water circulation unit.

[0018] Preferably, the water circulation unit includes a circulation pump, a main inlet pipe, branch inlet pipes, a main outlet pipe, and branch outlet pipes. The circulation pump is connected to an external water source. The outlet of the circulation pump is connected to the inlet of each branch inlet pipe through the main inlet pipe. The outlet of each branch inlet pipe is connected to the inlet quick-connect fitting on each baffle. The inlet of each branch outlet pipe is connected to the outlet quick-connect fitting on each baffle. The outlet of each branch outlet pipe is connected to the inlet of the water treatment unit through the main outlet pipe.

[0019] Preferably, the water circulation unit further includes a level gauge to prevent damage to the circulation pump due to water shortage.

[0020] Preferably, the water treatment unit includes a filter box and at least one filter disposed within the filter box. The filters are connected to each other in series and / or in parallel. Each filter has a filter chamber and an inlet, an outlet, and a sludge discharge port communicating with the filter chamber. The filter chamber is filled with filter material. The inlet is connected to the outlet of the main drain pipe through a main drain pipe. The outlet is connected to the inlet of the water quality adjustment unit. The sludge discharge port is connected to the waste sludge tank.

[0021] Preferably, the filter material is at least one of ceramic rings, activated carbon, and filter bags.

[0022] Preferably, the water quality adjustment unit includes: A dissolved oxygen detection unit includes a dissolved oxygen meter and an oxygenation pump. The dissolved oxygen meter is used to detect dissolved oxygen in the water, and the oxygenation pump is used to oxygenate the water. A pH adjustment unit, including a pH meter and a feeding device, is used to adjust the pH value of the water; and A transparency detection unit, including a turbidimeter, is used to measure the turbidity of water.

[0023] Preferably, the temperature control device is located at the outlet of the water quality conditioning unit, and includes a temperature sensor for detecting the temperature of the water delivered by the water quality conditioning unit and a heater for heating the water delivered by the water quality conditioning unit. The temperature sensor and the heater are connected to the controller.

[0024] Preferably, the self-adjusting lighting device includes multiple light sources, at least one light driver to drive the light sources, and a light sensor for detecting ambient light. The light sources are arranged on the multi-layer vertical breeding rack and suspended above the cultivation chamber and the breeding chamber. The light driver, the light sensor and the controller are connected.

[0025] Preferably, the self-adjusting lighting device further includes a light-shielding unit, which includes a main cover, an adjusting plate, and a driving device. The main cover is detachably fitted onto the top opening of the cultivation chamber or breeding chamber, and the main cover has a light-transmitting area with a plurality of light-transmitting holes. The adjusting plate is slidably disposed on the surface of the main cover for adjusting the light transmittance of the cover. The driving end of the driving device is connected to the adjusting plate for driving the adjusting plate to move parallel to the surface of the main cover to expose or cover at least part of the light-transmitting holes.

[0026] Preferably, both the cultivation chamber and the breeding chamber are equipped with a water level regulating structure. The water level regulating structure includes multiple sequentially connected branch pipes, with adjacent branch pipes connected by a plug-in connection. The top end of the uppermost branch pipe is located inside the cultivation chamber and / or the breeding chamber, and the bottom end of the lowermost branch pipe is connected to a connecting joint. By adjusting the number of branch pipes installed in the water level regulating structure, rapid adjustment of the water level within the chamber can be achieved.

[0027] Compared with the prior art, the beneficial effects of this application are: 1. The breeding system of this application: The breeding and rearing chambers of the breeding system of this application are equipped with aquatic and terrestrial areas, and can be used for both dry and wet purposes. It is suitable for the breeding of amphibians with cold temperatures and can be used for both adults and juveniles. Moreover, the breeding system can automatically purify the water, facilitate the cleaning of food residue and excrement, and ensure that the water quality, temperature, humidity, light and habitat are controlled during the breeding process, simulating the wild growth environment, which is conducive to the growth, development and reproduction of amphibians with cold temperatures, especially species of the genus *Andrias davidianus*. 2. The breeding chamber of this application is equipped with a removable partition, which can be removed according to breeding needs, making it convenient to use; 3. This application uses a self-adjusting lighting device to simulate light, and in conjunction with a light-blocking unit that adjusts light transmission, it ensures adequate light for the salamanders during their growth and reproduction. 4. The water circulation and purification device of this application purifies and regulates the water and circulates water to the breeding and rearing chambers on the breeding device. It can filter impurities generated during the breeding process, monitor the water quality in real time, and adjust the water quality in a timely manner as needed to ensure the breeding water environment of the salamanders. 5. This application is equipped with a water level adjustment structure, which can be used to quickly adjust the water level in the chamber by installing and adjusting the number of branch pipes in the water level adjustment structure. 6. The breeding and rearing chambers of the aquaculture system of this application can be quickly connected to the water circulation and purification device, reducing pipelines, improving replacement efficiency, reducing manual operation and individual stress response caused by manual operation, and significantly improving individual survival rate. Attached Figure Description

[0028] Figure 1This is a structural diagram of a biomimetic aquaculture system for the genus *Andrias davidianus* according to an embodiment of the present invention.

[0029] Figure 2 This is a side view of a simulated ecological breeding system for the genus *Andrias davidianus* according to an embodiment of the present invention.

[0030] Figure 3 This is a structural diagram of a cultivation chamber according to an embodiment of the present invention.

[0031] Figure 4 This is a side view of the incubation chamber according to an embodiment of the present invention.

[0032] Figure 5 This is a top view of the incubation chamber according to an embodiment of the present invention.

[0033] Figure 6 This is a structural diagram of a breeding chamber with a second planting box installed in an embodiment of the present invention.

[0034] Figure 7 This is a top view of a breeding chamber with a second planting box installed in an embodiment of the present invention.

[0035] Figure 8 This is a structural diagram of the breeding chamber without a second planting box, according to an embodiment of the present invention.

[0036] Figure 9 This is a top view of the breeding chamber without a second planting box, according to an embodiment of the present invention.

[0037] Figure 10 This is a structural diagram of a biomimetic aquaculture system for the genus *Andrias davidianus*, according to another embodiment of the present invention.

[0038] Figure 11 This is a structural diagram of a partial area of ​​a biomimetic aquaculture system for small salamanders according to another embodiment of the present invention, in which no rearing chamber is placed.

[0039] Figure 12 This is a side view of a biomimetic aquaculture system for the genus *Andrias davidianus* according to another embodiment of the present invention.

[0040] Figure 13 This is a structural diagram of the incubation chamber according to another embodiment of the present invention.

[0041] Figure 14 This is a side view of the incubation chamber according to another embodiment of the present invention.

[0042] Figure 15 This is a top view of the incubation chamber according to another embodiment of the present invention.

[0043] Figure 16 This is a structural diagram of the light-shielding unit of the present invention.

[0044] Figure 17 This is a structural diagram of a breeding chamber according to another embodiment of the present invention.

[0045] Figure 18 This is a simplified schematic diagram showing the connection between the water circulation purification device and the cultivation chamber of the present invention.

[0046] Figure 19 This is a schematic diagram of the principle of a biomimetic aquaculture system for the genus *Andrias davidianus* according to the present invention.

[0047] Figure 20 This is a structural block diagram of a biomimetic aquaculture system for the genus *Andrias davidianus* according to the present invention.

[0048] Figure 21 This is a structural diagram of the feeding device of the present invention.

[0049] Figure 22 for Figure 21 A sectional view.

[0050] Figure 23 This is a structural diagram of the incubation chamber according to another embodiment of the present invention.

[0051] Figure 24 This is a structural diagram of the breeding chamber according to the third embodiment of the present invention.

[0052] Figure 25 and Figure 26 This is a schematic diagram showing the installation of the water level regulating structure in two different cultivation chambers.

[0053] The components are: 1-Aquaculture device; 11-Multi-layer vertical aquaculture rack; 111-Support frame; 112-Horizontal partition; 113-Guiding equipment; 12-Cultivation chamber; 121-Aquatic cultivation room; 122-Terrestrial cultivation room; 123-First planting box; 124-Gentle slope; 125-First water outlet channel; 126-First water inlet channel; 127-First habitat space; 128-Sewage outlet; 129-First atomizer; 13-Breeding chamber; 131-Divider; 132-Second planting box; 1321-Sloping platform; 133-Breeding room; 134-Second water outlet channel; 135-Second water inlet channel; 136-Second atomizer; 137-Rain shower device; 138-Second habitat space; 14-Connecting joint; 15-Baffle; 151-Quick-connector for water inlet; 152-Quick-connector for water outlet; 16-Water level adjustment structure; Branch pipes; 2-Water circulation and purification device; 21-Water circulation unit; 211-Circulation pump; 212-Main inlet pipe; 213-Branch inlet pipe; 214-Main drain pipe; 215-Branch drain pipe; 216-Level gauge; 22-Water treatment unit; 23-Water quality adjustment unit; 231-Dissolved oxygen meter; 232-Oxygenation pump; 233-pH meter; 234-Feeding equipment; 235-Turbidity meter; 3-Self-adjusting lighting device; 31-Light source; 32-Optical driver; 33-Optical sensor; 34-Shielding unit; 341-Main shield; 3411-Light-transmitting hole; 342-Adjusting plate; 343-Driving device; 4-Temperature control device; 41-Temperature sensor; 42-Heater; 5-Control device; 51-Controller; 52-Display; 6-Power supply; 7-Feeding device; 71-Feeding box; 711-Pushing track; 72-Pushing device; 721-Pushing plate; 73-Discharge device; 731-Discharge hole; 74-Vibrator. Detailed Implementation

[0054] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application.

[0055] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0056] Furthermore, it should be understood that the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, does not preclude the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, unless otherwise stated. It should also be understood that the combined connection relationship between one or more devices / apparatus mentioned in this application does not preclude the existence of other devices / apparatus before or after the combined devices / apparatus, or the insertion of other devices / apparatus between these explicitly mentioned devices / apparatus, unless otherwise stated. Moreover, unless otherwise stated, the numbering of each method step is merely a convenient tool for identifying each method step, and not for limiting the order of the method steps or limiting the scope of implementation of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this application.

[0057] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0058] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," "axial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The present application will be further described below with reference to specific embodiments, but the scope of protection of the present application is not limited thereto.

[0062] like Figure 1 , Figure 2 As shown, the present invention provides a biomimetic aquaculture system for the genus *Andrias davidianus*, comprising: The breeding device 1 includes a multi-layer vertical breeding rack 11, a breeding chamber 12 set on the multi-layer vertical breeding rack 11 for breeding small salamander species, and a breeding chamber 13 set on the multi-layer vertical breeding rack 11 for breeding adult small salamander species. The water circulation and purification device 2 is installed on the multi-layer vertical aquaculture rack 11 and is used to purify and regulate the water and circulate water to the cultivation tank 12 and breeding tank 13 on the aquaculture device 1. Self-adjusting lighting device 3 is used to create a lighting environment to promote the growth and development of salamanders; Temperature control device 4 is used to control the water temperature in aquaculture device 1; Control device 5 includes a controller 51 and a display 52, wherein the controller 51 is electrically connected to the display 52, the water purification and circulation device 2, the self-adjusting lighting device 3, and the temperature control device 4; and Power supply 6 is electrically connected to the water circulation and purification device 2, the self-adjusting lighting device 3, the temperature control device 4, and the control device 5, and is used to supply power to the water circulation and purification device 2, the self-adjusting lighting device 3, the temperature control device 4, and the control device 5.

[0063] like Figure 11 As shown, the multi-layer vertical breeding rack 11 includes a support frame 111 and horizontal partitions 112 that are vertically spaced on the support frame 111. The horizontal partitions 112 divide the support frame 111 into multiple layers, and the two horizontal partitions 112 that are opposite each other define a breeding space for placing the breeding chamber 12 and the propagation chamber 13.

[0064] like Figure 3 , Figure 4 and Figure 5 as well as Figure 13 , Figure 14 and Figure 15 As shown, the cultivation chamber 12 is equipped with an aquatic cultivation chamber 121 for simulating the aquatic cultivation environment of the salamander and a terrestrial cultivation chamber 122 located above the aquatic cultivation chamber 121. The terrestrial cultivation chamber 122 is equipped with a first planting box 123, in which aquatic plants for simulating the terrestrial cultivation environment of the salamander are planted. A gentle slope 124 for creating an amphibious environment is provided between the aquatic cultivation chamber 121 and the terrestrial cultivation chamber 122. The top of the gentle slope 124 extends to the edge of the first planting box 123, and the bottom of the gentle slope 124 extends to the bottom of the aquatic cultivation chamber 121.

[0065] like Figure 5 As shown, the bottom of the cultivation chamber 12 is provided with a drain outlet 128. The drain outlet 128 is covered with a filter screen.

[0066] like Figure 4 and Figure 13 As shown, the first planting box 123 and the bottom surface of the cultivation chamber 12 define a first habitat space 127. The bottom of the first habitat space 127 can be processed with regular or irregular caves such as tunnel-like structures and hollow structures to increase the complexity and biomimicry of the aquatic cultivation environment, which helps the salamander's ecological adaptability and behavioral characteristics. At the same time, it reduces human intervention in the cultivation process, is less likely to cause individual stress reactions, and helps to improve the individual survival rate.

[0067] like Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a partition plate 131 and a second planting box 132 are detachably installed inside the breeding chamber 13. When the partition plate 131 is inserted into the breeding chamber 13, it divides the inner cavity of the breeding chamber 13 into two identical breeding rooms 133. Aquatic plants for simulating the terrestrial breeding environment of the salamander are planted in the second planting box 132.

[0068] like Figure 6 As shown, the second planting box 132 has a ramp 1321 on its side. The bottom of the ramp 1321 extends to the bottom of the breeding chamber, which is used to create a water and land environment while facilitating the movement of the salamanders in the area to improve breeding efficiency.

[0069] like Figure 6 and Figure 8 As shown, the breeding chamber is also equipped with a second atomizer 136, which is electrically connected to the controller and is used to regulate humidity.

[0070] like Figure 6 and Figure 7 As shown, the top of the breeding chamber is equipped with a rain shower device 137, which has several rain shower holes to simulate the effect of rain in the wild.

[0071] like Figure 6 As shown, the second planting box 132 and the bottom surface of the breeding chamber 131 define a second habitat space 138. The bottom of the second habitat space 138 can be a tunnel-like structure, a hollow structure, or other regular or irregular caves, which increases the complexity and biomimicry of the aquatic breeding environment, helps improve the ecological adaptability and behavioral characteristics of the salamander, and reduces human intervention in the breeding process, making it less likely to trigger individual stress responses and helping to improve the survival rate of individuals.

[0072] like Figure 10 , Figure 11 and Figure 12As shown, the culture chamber 12 has a first water outlet channel 125 and a first water inlet channel 126 on its walls, which connect to the aquatic culture chamber 121; the breeding chamber 13 has a second water outlet channel 134 and a second water inlet channel 135, which connect to the breeding chamber 133, and the outer ends of the first water outlet channel 125, the first water inlet channel 126, the second water outlet channel 134, and the second water inlet channel 135 are all equipped with docking joints 14; a baffle 15 is provided at the rear edge of the horizontal partition 112 of the multi-layer vertical breeding rack 11, and several quick-connect water inlet connectors 151 and quick-connect water outlet connectors 152 are provided on the baffle 15 at intervals for plugging and mating with the docking joints 14. The quick-connect water inlet connectors 151 and quick-connect water outlet connectors 152 correspond one-to-one and are alternately arranged on the baffle 15, and are respectively connected to the docking joints 14 aligned front and back.

[0073] like Figure 11 As shown, the upper surface of the horizontal partition 112 of each layer is provided with several guiding devices 113 at intervals, which are used to guide the cultivation chamber 12 or the breeding chamber 13 from front to back into the cultivation space.

[0074] like Figure 23 As shown, a first atomizer 129 is installed on the cultivation chamber 12.

[0075] like Figure 10 , Figure 11 and Figure 12 As shown, the water circulation and purification device 2 includes: Water circulation unit 21 is used to connect to an external water source to circulate water to the aquaculture device 1; Water treatment unit 22, connected to the outlet of water circulation unit 21, is used to remove impurities from the water; and The water quality adjustment unit 23 is connected to the water treatment unit 22 and the water circulation unit 21. It is used to adjust the water quality and return the adjusted water to the water circulation unit 21.

[0076] like Figure 12 , Figure 18 As shown, the water circulation unit 21 includes a circulation pump 211, a main inlet pipe 212, branch inlet pipes 213, a main outlet pipe 214, and branch outlet pipes 215. The circulation pump 211 is connected to an external water source. The outlet of the circulation pump is connected to the inlet of each branch inlet pipe 215 through the main inlet pipe 212. The outlet of each branch inlet pipe 215 is connected to the inlet quick connector on each baffle. The inlet of each branch outlet pipe 213 is connected to the outlet quick connector on each baffle. The outlet of each branch outlet pipe is connected to the inlet of the water treatment unit 22 through the main outlet pipe.

[0077] like Figure 17As shown, the water circulation unit 21 also includes a level gauge 216 to prevent the circulation pump from being damaged due to lack of water.

[0078] In some embodiments of the present invention, the water treatment unit 22 includes a filter box and at least one filter disposed in the filter box. The filters are connected to each other in series and / or in parallel. Each filter has a filter chamber and an inlet, an outlet, and a sludge discharge port communicating with the filter chamber. The filter chamber is filled with filter material. The inlet is connected to the outlet of the water circulation unit 21 through a main drain pipe. The outlet is connected to the inlet of the water quality adjustment unit. The sludge discharge port is connected to the waste sludge tank.

[0079] In some embodiments of the present invention, the filter material is at least one of ceramic rings, activated carbon, and filter bags.

[0080] like Figure 18 , Figure 19 and Figure 20 As shown, the water quality adjustment unit 23 includes: The dissolved oxygen detection unit includes a dissolved oxygen meter 231 and an oxygenation pump 232. The dissolved oxygen meter is used to detect dissolved oxygen in the water body, and the oxygenation pump is used to oxygenate the water body. A pH adjustment unit, including a pH meter 233 and a feeding device 234, is used to adjust the pH value of the water; and The transparency detection unit includes a turbidimeter 235 for measuring the turbidity of water.

[0081] like Figure 19 As shown, the temperature control device 4 is located at the outlet of the water quality adjustment unit 23, and includes a temperature sensor 41 for detecting the temperature of the water delivered by the water quality adjustment unit 23 and a heater 42 for heating the water delivered by the water quality adjustment unit 23. The temperature sensor 41 and the heater 42 are connected to the controller.

[0082] like Figure 19 As shown, the self-adjusting lighting device 3 includes multiple light sources 31, at least one light driver 32 driving the light sources 31, and a light sensor 33 for detecting ambient light. The light sources 31 are arranged on the multi-layer vertical breeding rack 11 and suspended above the breeding chamber 12 and the breeding chamber 13. The light driver 32 and the light sensor 33 are connected to the controller.

[0083] like Figure 16As shown, the self-adjusting lighting device 3 also includes a light-shielding unit 34, which includes a main cover 341, an adjusting plate 342, and a driving device 343. The main cover 341 is detachably fitted onto the top opening of the cultivation chamber 12 or the breeding chamber 13. The main cover 341 has a light-transmitting area with a plurality of light-transmitting holes 3411. The adjusting plate 342 is slidably disposed on the surface of the main cover 341 for adjusting the light transmittance of the cover. The driving end of the driving device 343 is connected to the adjusting plate 342 for driving the adjusting plate 342 to move parallel to the surface of the main cover 341 to expose or cover at least part of the light-transmitting holes 3411.

[0084] like Figures 21-22 As shown, the simulated ecological breeding system for small salamanders also includes a feeding device 7, which facilitates feeding the small salamanders in each breeding and rearing compartment.

[0085] like Figures 21-22 As shown, the feeding device 7 includes a feeding box 71 and a feeding pusher 72 and a discharging device 73 disposed on the feeding box. The feeding box 71 is disposed on the rearing chamber 12 and the breeding chamber 13. The feeding box 71 is provided with a feeding pusher track 711. The feeding box 71 is provided with a feed inlet 712 and a discharge outlet. The pushing end of the feeding pusher 72 is connected to a pushing plate 721. The pushing plate 721 reciprocates within the feeding pusher track 711 to convey and push the feed along the feeding pusher track to the discharging device. The discharging device 73 is disposed in the discharging outlet. The end of the discharging device 73 near the feeding pusher track is connected to the discharging end of the feeding pusher track, and the end away from the feeding pusher track is provided with a discharging hole 731.

[0086] like Figure 21 As shown, the feeding device 7 also includes a vibrator 74, which contacts the discharge head for discharging material.

[0087] like Figure 25 and Figure 26 As shown, both the cultivation chamber and the breeding chamber are equipped with a water level regulating structure 16. The water level regulating structure 16 includes multiple sequentially connected branch pipes 161. Adjacent branch pipes 161 are connected by a plug-in connection. The top end of the uppermost branch pipe is located inside the cultivation chamber and / or the breeding chamber, and the bottom end of the lowermost branch pipe is directly connected to the drain outlet at the bottom of the cultivation chamber and the breeding chamber, or it can be connected to a connecting joint via a flexible hose. By adjusting the number of branch pipes installed in the water level regulating structure, rapid adjustment of the water level inside the chamber can be achieved.

[0088] In some embodiments of the present invention, each connecting pipe of the simulated ecological breeding system for small salamanders is equipped with a control switch, which can control the on / off state between each unit.

[0089] In some embodiments of the present invention, the simulated ecological breeding system for *Andrias davidianus* is also equipped with an ultraviolet disinfection lamp for disinfection. The ultraviolet disinfection lamp is model HS-UV24W, with a sterilization lifespan of ≥10,000 hours.

[0090] Specifically, the breeding chamber and the rearing chamber of this application can be used alternately. The breeding chamber is used during the breeding process of the salamanders, and can be removed and replaced with the rearing chamber during the breeding stage. The breeding chamber has dimensions of 50*40*40cm, and the rearing chamber has dimensions of 120*60*50cm. Each rearing chamber is equipped with a light source and a second atomizer. The rearing chamber is also equipped with a rain shower device 137, which is a detachable rain shower cover installed on the top of the rearing chamber, occupying about half of the rearing chamber. The multi-layer vertical breeding rack 11 of this application uses a stainless steel frame with dimensions of 1850*500*1980mm. The heater is a 500W electric heating lamp; the circulation pump is model SP609, 135W, with a maximum flow rate of 8000L / H and a maximum head of 5.2 meters; the aeration pump is model V-30, 25W, with a discharge capacity of 30L / min. The display is an HS-CT2.0, operating at a safe 12V voltage. The light source is an LED strip, and the optical driver is a T16G series, allowing for adjustable illumination time according to experimental needs, automatic on / off switching, and memory functionality. The piping uses UPVC pipe, which is drinking water grade, flexible, and has a strength of 1.0 MPa.

[0091] The breeding system of this application features both aquatic and terrestrial zones in its cultivation and breeding chambers, allowing for both dry and wet environments. It is suitable for the breeding of poikilothermic amphibians and can be used for both adults and juveniles. Furthermore, the system automatically purifies the water, facilitating the removal of food residue and excrement, and ensuring optimal water quality, temperature, humidity, light, and habitat during the breeding process. This simulates a wild growth environment, which is beneficial for the growth, development, and reproduction of poikilothermic amphibians, especially the salamander. The breeding chamber is equipped with removable partitions that can be removed according to breeding needs, making it convenient to use. The system also incorporates a self-adjusting lighting device. Simulated lighting, combined with a light-blocking unit that adjusts light transmission, ensures adequate illumination for the growth and reproduction of the salamanders. The water circulation and purification device of this application purifies and regulates the water, circulating it to the breeding and rearing chambers of the aquaculture system. This not only filters impurities generated during the aquaculture process but also monitors water quality in real time and adjusts it as needed, ensuring a suitable aquatic environment for the salamanders. The breeding and rearing chambers of this aquaculture system can be quickly connected to the water circulation and purification device, reducing piping, improving replacement efficiency, minimizing manual operation and stress on individuals caused by manual operation, and significantly increasing individual survival rates.

[0092] The above embodiments are for illustrating the implementation schemes disclosed in this application and should not be construed as limiting this application. Furthermore, various modifications listed herein, as well as variations in methods and compositions of the invention, will be apparent to those skilled in the art without departing from the scope and spirit of this application. Although this application has been specifically described in conjunction with various specific preferred embodiments, it should be understood that this application should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the invention should be included within the scope of this application.

Claims

1. A biomimetic aquaculture system for the genus *Andrias davidianus*, characterized in that: include: The breeding device (1) includes a multi-layer vertical breeding rack (11), a breeding chamber (12) set on the multi-layer vertical breeding rack (11) for breeding small salamander species, and a breeding chamber (13) set on the multi-layer vertical breeding rack (11) for breeding adult small salamander species. A water circulation and purification device (2) is installed on a multi-layer vertical aquaculture rack (11) to purify and regulate the water and circulate water to the breeding chamber (12) and the propagation chamber (13) on the aquaculture device (1); Self-adjusting lighting device (3) is used to create a lighting environment to promote the growth and development of salamanders; Temperature control device (4) is used to control the water temperature in aquaculture device (1); The control device (5) includes a controller (51) and a display (52), the controller (51) being electrically connected to the display (52), the water circulation and purification device (2), the self-adjusting lighting device (3), and the temperature control device (4); and a power supply (6), the power supply (6) being electrically connected to the water circulation and purification device (2), the self-adjusting lighting device (3), the temperature control device (4), and the control device (5), for supplying power to the water circulation and purification device (2), the self-adjusting lighting device (3), the temperature control device (4), and the control device (5).

2. The simulated ecological aquaculture system for small salamanders according to claim 1, characterized in that: The multi-layer vertical breeding rack (11) includes a support frame (111) and horizontal partitions (112) arranged vertically on the support frame (111). The horizontal partitions (112) divide the support frame (111) into multiple layers, and the two horizontal partitions (112) that are opposite each other define a breeding space for placing the breeding chamber (12) and the propagation chamber (13).

3. The simulated ecological breeding system for small salamanders according to claim 1, characterized in that: The cultivation chamber (12) is equipped with an aquatic cultivation chamber (121) for simulating the aquatic cultivation environment of the salamander species and a terrestrial cultivation chamber (122) located above the aquatic cultivation chamber (121). The terrestrial cultivation chamber (122) is equipped with a first planting box (123), in which aquatic plants for simulating the terrestrial cultivation environment of the salamander species are planted. A gentle slope (124) for creating an amphibious environment is provided between the aquatic cultivation chamber (121) and the terrestrial cultivation chamber (122). The top of the gentle slope (124) extends to the edge of the first planting box (123), and the bottom of the gentle slope (124) extends to the bottom of the aquatic cultivation chamber (121).

4. The biomimetic aquaculture system for *Andrias davidianus* according to claim 1, characterized in that: The breeding chamber (13) is detachably equipped with a vertical partition (131) and a second planting box (132). When the vertical partition (131) is inserted into the breeding chamber (13), it divides the inner cavity of the breeding chamber (13) into two identical breeding chambers (133). The second planting box (132) is planted with aquatic plants to simulate the terrestrial breeding environment of the salamander species.

5. A biomimetic aquaculture system for *Andrias davidianus* according to claim 3 or 4, characterized in that: The culture chamber (12) has a first return water channel (125) and a first inlet water channel (126) connected to the aquatic culture chamber (121) on its walls; the breeding chamber (13) has a second return water channel (134) and a second inlet water channel (135) connected to the breeding chamber (133), and the outer ends of the first return water channel (125), the first inlet water channel (126), the second return water channel (134), and the second inlet water channel (135) are all equipped with docking joints (14); a baffle (15) is provided at the rear edge of the horizontal partition (112) of the multi-layer vertical breeding rack (11), and several quick-connect water inlet connectors (151) and quick-connect water outlet connectors (152) are provided on the baffle (15) at intervals for plugging and cooperating with the docking joints (14). The quick-connect water inlet connectors (151) and quick-connect water outlet connectors (152) correspond one to one and are alternately arranged on the baffle (15), and are respectively connected to the docking joints (14) aligned front and back.

6. The simulated ecological aquaculture system for *Andrias davidianus* according to claim 2, characterized in that: The upper surface of each horizontal partition (112) is provided with several guiding devices (113) at intervals for guiding the cultivation chamber (12) or breeding chamber (13) from front to back into the cultivation space.

7. The simulated ecological aquaculture system for *Andrias davidianus* according to claim 1, characterized in that, The water circulation and purification device (2) includes: Water circulation unit (21) is used to connect an external water source to circulate water to the aquaculture device (1); Water treatment unit (22), connected to the outlet of water circulation unit (21), is used to remove impurities from the water; and The water quality adjustment unit (23) is connected to the water treatment unit (22) and the water circulation unit (21) and is used to adjust the water quality and return the adjusted water to the water circulation unit (21).

8. The simulated ecological breeding system for *Andrias davidianus* according to claim 1, characterized in that, The temperature control device (4) is located at the outlet of the water quality adjustment unit (23), including a temperature sensor (41) for detecting the temperature of the water delivered by the water quality adjustment unit (23) and a heater (42) for heating the water delivered by the water quality adjustment unit (23). The temperature sensor (41) and the heater (42) are connected to the controller.

9. The biomimetic aquaculture system for *Andrias davidianus* according to claim 1, characterized in that: The self-adjusting lighting device (3) includes multiple light sources (31), at least one light driver (32) for driving the light sources (31), and a light sensor (33) for detecting ambient light. The light sources (31) are arranged on the multi-layer vertical breeding rack (11) and suspended above the breeding chamber (12) and the breeding chamber (13). The light driver (32) and the light sensor (33) are connected to the controller.

10. The biomimetic aquaculture system for *Andrias davidianus* according to claim 1, characterized in that: The self-adjusting lighting device (3) further includes a light-shielding unit (34), which includes a main cover (341), an adjustment plate (342), and a driving device (343). The main cover (341) is detachably fitted onto the top opening of the cultivation chamber (12) or the breeding chamber (13). The main cover (341) has a light-transmitting area with several light-transmitting holes (3411). The adjustment plate (342) is slidably disposed on the surface of the main cover (341) for adjusting the light transmittance of the cover. The driving end of the driving device (343) is connected to the adjustment plate (342) for driving the adjustment plate (342) to move parallel to the surface of the main cover (341) to expose or cover at least part of the light-transmitting holes (3411).

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