CN213939363U - Juvenile freshwater mussel seedling and accurate seed cultivation device - Google Patents
Juvenile freshwater mussel seedling and accurate seed cultivation device Download PDFInfo
- Publication number
- CN213939363U CN213939363U CN202022625991.6U CN202022625991U CN213939363U CN 213939363 U CN213939363 U CN 213939363U CN 202022625991 U CN202022625991 U CN 202022625991U CN 213939363 U CN213939363 U CN 213939363U
- Authority
- CN
- China
- Prior art keywords
- mussel
- young
- seedling
- water
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model relates to a young freshwater mussel seedling removing and fine seed cultivating device, which comprises a host fish temporary cultivating system, a young freshwater mussel seedling removing and collecting system, a fine seed cultivating system, a temperature control system, a water inlet system and a water outlet system; the host fish temporary culture system comprises a host fish temporary culture box body, a host fish temporary culture box body support frame and a host fish temporary culture isolation net arranged in the host fish temporary culture box body. The utility model discloses creatively with host fish breed, young mussel take off the seedling and collect, seedling cultivation organic combination again mutually independent. The method is characterized in that the breeding process of the leptocylindrus clarkii larvae which metamorphosis develops on the host fish body until the young mussels fall off is independently transferred into the host fish temporary breeding box for carrying out, meanwhile, the separation net is arranged in the host fish temporary breeding box to separate the host fish from the box bottom, and compared with the traditional method of directly putting the host fish into a cement or brick breeding pool for breeding offspring seeds, the method can firstly reduce the risk of friction or collision injury infection of the fish body and the pool wall and the risk of water pollution and death caused by stirring the pool bottom.
Description
Technical Field
The utility model relates to an aquaculture technical field, in particular to young freshwater mussel takes off seedling and accurate breeding device of seed.
Background
In the breeding season of the freshwater mussels, in spring and summer, sperm eggs are fertilized in gill cavities of external gill petals, fertilized eggs form mature hooked larvae through development and are discharged out of bodies, byssus and hook teeth are parasitized at gill filaments or soft fin strips of host fishes, and the young freshwater mussels are developed through transient parasitic transformation, so that natural propagation is completed. The traditional breeding mode is that host fish infected with leptocylindrus hybridus larvae are directly put into a breeding pond to shed seedlings, however, the accumulated temperature required for metamorphosis development of the leptocylindrus hybridus larvae of different species is different, the water temperature of 20 ℃ generally needs 8-9 days to shed seedlings, namely the accumulated temperature is 160-180 degrees, and the development synchronism of the leptocylindrus hybridus larvae is poor, and the shedding time generally needs to last 2-3 days, so the process has the following disadvantages: (1) the breeding time of the host fish infected with the leptocylindrus clarkii larvae (hereinafter referred to as host fish) is too long, and the death risk is increased; (2) the survival rate of the young mussels which fall off is influenced by the residual bait and excrement generated in the process of cultivating the host fish; (3) the host fish is disturbed by the production activity to stir the bottom of the pond, so that the young mussels are lost along with the overflow of water flow; (4) some host fishes have the habit of feeding young mussels, and a large number of young mussels can be fed; (5) the fish body and the pool wall are rubbed and damaged to cause death or stress death due to the production activities; (6) the number of young clams in the cultivation pool cannot be evaluated, and the density is larger or smaller, so that accurate cultivation cannot be carried out. In addition, aiming at the artificial breeding research of some rare or endangered species, the traditional cultivation facilities are not beneficial to the fine tracking research, such as host fish screening and the like. Therefore, the research and development is that young freshwater mussel that receives artifical regulation and control takes off seedling, collection and the accurate breeding device of seed is the utility model discloses a key place.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome a great deal of not enough that exists among the prior art, provide an integrated device that freshwater mussel host fish was supported temporarily, young freshwater mussel takes off the seedling and collects, the accurate cultivation of seedling and the regulation and control of system's temperature to reach shorten the hook and mediate the metamorphosis development time of larva, improve the host fish survival rate, avoid young freshwater mussel because of being ingested by the host fish and host fish disturbance flows the loss and the high-efficient purpose of collecting young mussel and carrying out the accurate cultivation of seedling.
According to the technical scheme provided by the utility model, a young freshwater mussel takes off seedling and accurate breeding device of seed, including host fish system of raising temporarily, young freshwater mussel take off seedling and collection system, the accurate breeding system of seed, temperature control system, water inlet system and water outlet system.
The host fish temporary culture system comprises a culture box body, a box body supporting frame and an isolation net arranged in the box body; the young mussel seedling removing and collecting system comprises a young mussel seedling removing and collecting box body, a box body supporting frame, a fish placing opening arranged on the side surface of the box body, an isolation net arranged inside the box body and a young mussel collecting tank, wherein the young mussel collecting tank is connected with a young mussel filtering and collecting net box arranged outside the box body through a pipeline; the accurate seedling cultivation system comprises a cultivation box body, a box body supporting frame and a water spraying pipeline; the temperature control system comprises a water storage tank, a temperature controller, a temperature detector, a heating pipe, a circulating water pump and a liquid level floating ball; the water inlet system comprises a water inlet main pipe and branch water inlet pipes which branch into each system, and the water inlet main pipe and each branch water inlet pipe control water inlet through valves; the water outlet system comprises two parts, wherein one part is water outlet of overflow ports of the systems, the other part is water outlet of drain ports of the systems, the drain ports control water outlet through valves, and the two parts are converged at the tail ends and are discharged together.
The box body is of a cuboid structure and is made of a light polyethylene material with high mechanical strength;
the overflow port of the temporary host fish rearing tank is 45-55cm away from the bottom of the tank, and the drain port is positioned at the bottom of the other end at the same side of the overflow port; the distance between the overflow ports of the young mussel seedling removing box and the accurate incubator is 25-35cm from the bottom of the incubator, the drain port of the young mussel seedling removing box is positioned at the bottom of the collecting tank opposite to the overflow port, and the drain port of the accurate incubator is positioned at the bottom below the overflow port; the water storage tank of the temperature control system is not provided with an overflow port, and a drain port of the water storage tank is positioned at the bottom of the tank body;
the middle branch of the overflow drainage main pipe enters a water storage tank of a temperature control system, and water inlet is controlled through a valve;
the young mussel is taken off and the bottom of the collecting tank forms an inclination angle of 3-5 degrees with the horizontal plane, so that the young mussels can be conveniently gathered to the collecting tank;
the box body supporting frame is formed by welding angle steel and comprises an upright post and a box supporting underframe;
the isolation net is a foldable cover net made of polyethylene materials and gauze;
the bottom end of the fish placing opening is 5-7cm away from the bottom of the box, and a gate made of polyethylene material and waterproof material is arranged;
the juvenile mussel collecting tank is of a cuboid leak tank structure, an opening at one end of the collecting tank is connected with an external juvenile mussel filtering and collecting net cage through a PVC pipe, and a valve is arranged on a pipeline;
the juvenile mussel filtering and collecting net cage is divided into an upper layer and a lower layer, a cuboid net cage with a structure of the upper layer and the lower layer is made of 100-plus-200-mesh gauze and polyethylene materials, a layer of support frame is arranged around the middle part of the net cage, a cover net is made of 30-40-mesh gauze and can be placed on the support frame in the middle part of the net cage; the bottom of the net cage is funnel-shaped, and a valve is arranged at the bottommost end;
the water spraying pipeline is made of steel pipes, and a plurality of water spraying nozzles are distributed towards one side of the middle of the cultivation box;
a temperature control assembly, a primary filtering assembly and a liquid level floating ball assembly are arranged in the water storage tank;
the temperature controller, the temperature detector and the heating pipe can regulate and control the temperature of the water body as required;
when the temperature control system is started, the main water inlet valve and the main water outlet valve are closed, the thermal cycle of the system is maintained, and the main water inlet valve is opened periodically to moderately replenish water to the system;
the circulating water pump and the liquid level floating ball can timely adjust the water inflow of the system when the temperature control system operates.
A method for manufacturing a device for the seedling removal and fine cultivation of young freshwater mussels comprises the following steps: the method specifically comprises the following steps: the specific manufacturing method is as follows:
1.2 pieces of polyethylene plates with the thickness of 0.8-1.2cm and 200 pieces of 220cm × 50-60cm, 2 pieces of 120 pieces of 130cm × 50-60cm and 1 piece of 200 pieces of 220cm × 120 pieces of 130cm are used as adhesive to manufacture the temporary culture box for the host fish with the length of 200 pieces of 220cm × 120 pieces of 130cm × 50-60cm (length × width × height); the juvenile mussel seedling removing and collecting box and the precise seedling cultivating box of 200 plus materials of 220 plus materials of cm x 120-40 cm (length x width x height) and 130cm of 120 plus materials of 3 plus materials of 220 plus materials of cm x 30-40cm and 2 plus materials of 200 plus materials of 220 plus materials of cm x 120 plus materials of 130cm and 0.8-1.2cm are manufactured into the juvenile mussel seedling removing and collecting box and the precise seedling cultivating box of 200 plus materials of 220 x 120-40 cm (length x width x height), wherein the temporary host fish cultivating box, the juvenile mussel seedling removing and collecting box and the precise seedling cultivating box share one side plate of 200 plus materials of 220 x 50-60cm, and the side plate is provided with a fish placing port;
2. welding 3 200-220-120-130-cm (length, width and height) water tank brackets by 6 stainless steel square tubes (7-8 cm in side length, 0.1-0.2cm in thickness) with the lengths of 200-220-120-130-60 cm, 18-120-130-cm and 12-50-60-cm;
3. welding 2 stainless steel square tubes (7-8 cm in side length and 0.1-0.2cm in thickness) with the length of 200-220cm and the length of 2-120-130 cm at the bottom of the support for placing the temporary host fish culture box into a frame corresponding to the upper part of the support;
4. the water storage tank of the temperature control system with the length multiplied by the width multiplied by the height multiplied by the 150-160cm, the 2 pieces of the polyethylene plates with the thickness of 0.8 to 1.2cm and the 2 pieces of the polyethylene plates with the thickness of 2 pieces of 150 pieces of 160 pieces of 80 to 40cm and 1 piece of 150 pieces of 160 pieces of 80 to 90cm of 1 piece of 150 pieces of 160 pieces of 80 to 90 cm;
5. tightly connecting 3 supports, stably placing a water tank made of polyethylene plates on the supports from left to right in sequence according to the sequence of a host fish temporary culture tank, a young mussel fry removing and collecting tank and a fry precise culture tank, and placing a water storage tank of a temperature control system at the bottom of the host fish temporary culture tank support to form a whole set of device;
6. adhering 3-4cm wide and 0.4-0.6cm thick polyethylene supporting plates around the box body at the positions 5-7cm away from the bottom of the box body in the host fish temporary culture box, the young mussel fry removing box and the collecting box; adhering a polyethylene supporting plate with the width of 4-5cm and the thickness of 0.4-0.6cm at the bottom end of the fish placing opening of the young mussel seedling and collection box;
7. preparing 2 foldable separation nets of 200-piece of 110-cm × 2-3cm, 16-piece of 60-65-cm × 2-3cm, thickness of 0.4-0.6cm and gauze with aperture of 0.5-1.0cm into foldable separation nets of 200-piece of 220-120-piece of 130cm, and respectively placing the foldable separation nets on polyethylene supporting plates in a temporary host fish culture box and a young host mussel seedling removing and collecting box;
8. a fish placing port of 70-80cm multiplied by 35-45cm (length multiplied by width) is arranged on a shared side plate of the host fish temporary breeding box, the young mussel fry removing box and the collecting box, a gate is made of a polyethylene plate and a waterproof material on one side of the young mussel fry removing box and the collecting box, and water outlet of the gate is controlled by six knobs;
9. a circulating water pump with power of 370-; a liquid level floating ball is arranged in the water storage tank and is associated with the circulating water pump to control the starting and stopping of the circulating water pump; 3 heating pipes of 220v and 1 temperature detector are arranged at the bottom of the water tank and connected with an external temperature controller to jointly regulate and control the water temperature of the water storage tank;
10. opening a rectangular opening of 90-100cm multiplied by 30-35cm (length multiplied by width) at one side in the young mussel seedling-removing and collecting box, using 2 polyethylene plates of 90-100cm multiplied by 15-20cm, 2 polyethylene plates of 30-35cm multiplied by 15-20cm and 1 polyethylene plate of 90-100cm multiplied by 30-35cm with the thickness of 0.8-1.2cm, using polyethylene glue as an adhesive, and manufacturing a young mussel collecting tank of 90-100cm multiplied by 30-35cm multiplied by 15-20cm (length multiplied by width multiplied by height) below the opening;
11. one end of the young mussel collecting tank is provided with a round hole with the aperture of 4-4.5cm, the round hole is connected with the young mussel collecting tank by PVC pipes with the same size, and then the round hole is divided into two paths, one path is connected with a main drain pipe, and the other path is connected with a young mussel filtering and collecting net cage;
12. 24 polyethylene plates with the thickness of 0.4-0.6cm and 40-45cm multiplied by 2-3cm and a gauze with the mesh size of 100 and 200 are used for manufacturing the juvenile mussel filtering and collecting net cage with the total size of 40-45cm multiplied by 55-60cm (length multiplied by width multiplied by height) and an upper and lower two-layer structure; 4 polyethylene plates with the thickness of 0.4-0.6 and the thickness of 40-45cm multiplied by 2-3cm are made into a supporting frame at the periphery of the middle part in the net cage, 8 polyethylene plates with the thickness of 0.4-0.6 and the thickness of 39-44cm multiplied by 1.5-2cm are made into a cover net with the thickness of 30-40 meshes, and the cover net can be placed on the supporting frame at the middle part of the net cage; the bottom of the net cage is funnel-shaped, and a valve is arranged at the bottommost end;
13. a main water inlet pipeline is arranged on one side of the device, the pipe diameter is 4.0-5.0cm, then the main water inlet pipeline is branched to each system through a reducing branch of the main water inlet pipeline, the pipe diameter of each branch pipeline is 2.5-3.2cm, and the main water inlet pipeline and each branch water inlet pipeline are respectively provided with a water quantity control valve; the upper end in the seedling precision cultivation pool is provided with water inlet steel pipes with the same diameter as the branch water inlet pipes, the water inlet steel pipes are welded with water spray ports with the pipe diameters of 0.5-0.8cm at equal intervals, and the rear ends of the water spray ports are provided with water quantity regulating valves;
14. an overflow port drainage main pipe is arranged on the other side of the device, and the diameter of the pipeline is 3.2-4 cm; the overflow ports of each system are respectively connected with an overflow port drainage main pipe through branch pipes with the pipe diameters of 2.5-3.2 cm; arranging a main drainage pipe with drainage holes at the bottom of the device, wherein the diameter of the pipeline is 5-6.5cm, the drainage ports of all systems are respectively connected with the main drainage pipe through branch pipes with the pipe diameter of 5-6.5cm, and the drainage ports are provided with water outlet valves; the overflow port drainage main pipe and the drain main pipe are connected at the rear end and are discharged together;
15. combining the host fish temporary culture system, the young mussel seedling removing and collecting system, the precise seed culture system, the temperature control system, the water inlet system and the water outlet system, thus completing the device for removing the young mussels and the precise seed culture of the freshwater mussels;
16. adding 10-20L of clean culture water into a water tank, and starting an oxygenation pump to increase the dissolved oxygen content of the water body (>5 mg/L). The freshwater mussel hook larvae are placed in a water tank and scattered by a stirrer to be uniformly distributed in a water body (the density is about 50000-. And then the host fish infected with the hooke larvae is transferred to a temporary rearing box for rearing, the host fish is regularly and quantitatively fed every day, and the separation net in the temporary rearing box is used for separating residual bait and excrement from the fish body, so that the water quality is prevented from being polluted due to the stirring of the host fish, and the survival rate of the host fish is prevented from being influenced. The host fish is driven to the young mussel fry-off and collection box through the fish-placing opening 2-3 days before the young mussel reaches the fry-off accumulated temperature, and the method can avoid fish body damage and stress caused by transferring the caught host fish. When the fry-off accumulated temperature is reached, the young mussels which are successfully metamorphosed and the larval hamulus which is not normally metamorphosed and dies in the process can fall off from the host fish body and settle to the bottom of the fry-off young mussel and the collection box. Because the young mussel is taken off and the separation net is arranged in the collecting box, the problem that the host fish is disturbed to stir the bottom of the pool due to production activities is avoided, the young mussel is lost along with overflow of water flow, and the young mussel is prevented from being eaten by the host fish. The upper layer of the filtering and collecting net cage is used for intercepting large impurities such as host fish excrement, water body sediments, dropped fish scales and the like, the lower layer of the filtering and collecting net cage is used for collecting surviving juvenile mussels and death juvenile leptocypris larvae which fail in metamorphosis, and therefore the risk of anoxic death of the juvenile mussels (respiratory organs which are not completely developed) buried in the impurities such as the host fish excrement and the like can be reduced, and the key seedling cultivation indexes such as juvenile leptocypris parasitic quantity, seedling emergence time, juvenile mollusk metamorphosis rate and the like can be effectively counted. Quantitatively putting the collected young mussels into a young mussel cultivation box after counting for accurate seed cultivation.
The utility model has the advantages that: the utility model discloses creatively with host fish breed, young mussel take off the seedling and collect, seedling cultivation organic combination again mutually independent. The method is characterized in that the breeding process of the larval hamulus on the host fish body before the larval mussel falls off through metamorphosis development is carried out by independently transferring the larval hamulus into the host fish temporary breeding box, meanwhile, the isolation net is arranged in the host fish temporary breeding box to isolate the host fish from the box bottom, compared with the traditional method that the host fish is directly placed into a cement or brick breeding pool for breeding offspring seeds, the method can firstly reduce the risk that the fish body is rubbed or collided with the pool wall to be injured and infected and stir the pool bottom to pollute water to die, and secondly can greatly reduce the risk that the larval mussel is killed due to the fact that residual bait, excrement, dropped fish scales and the like accumulated in the breeding process of the host fish are mixed together. Host fishes close to seedling shedding are driven into the young mussel seedling shedding and collecting box from the temporary culture box through the fish placing port to shed seedlings, and the method can avoid damage and stress death caused by transferring the caught host fishes. The young mussel fry-off and collecting system is independently arranged, and the isolation net is arranged in the young mussel fry-off and collecting box, so that the problem that host fish are disturbed by production activities to stir the bottom of the pool is avoided, the young mussels are lost along with overflow of water flow, and the problem that the fallen young mussels are greatly ingested by the host fish is avoided. The utility model discloses taking off young mussel seedling and collecting box bottom and setting up certain gradient, being convenient for young mussel to converge into the collecting vat, simultaneously filter and collect the box with a net and carry out young mussel filtering separation according to seedling specification preparation, take off the young mussel and separate large debris such as excrement and urine, deposit and scale that the seedling in-process produced with young mussel, high-efficient separation goes out young mussel, improves young mussel count accuracy and efficiency, this helps improving host fish parasitic effect evaluation on the one hand, on the other hand is favorable to the accurate cultivation of seedling. The temperature control system in the utility model can timely regulate and control the water temperature of the whole device, firstly, the water temperature in the host fish temporary rearing box and the seedling removal box can be raised according to the needs on the premise of certain seedling removal accumulated temperature, the metamorphosis development time of the hook larvae on the host fish body is shortened, the survival rate of the host fish is improved, namely the seedling removal rate of young mussels is improved; and secondly, the survival rate and the growth rate of young mussels in the precise fry rearing pond are improved by adjusting the temperature.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a top view of a device for separating young mussels from seedlings and precisely culturing the young mussels.
Fig. 2 is a front view of a device for separating young mussels from seedlings and precisely culturing the young mussels.
FIG. 3 is a rear view of a device for separating young mussels from young mussels and precisely cultivating the young mussels.
FIG. 4 is a structure diagram of a fish-mouth of a young freshwater mussel seedling-removing and accurate freshwater mussel culturing device.
FIG. 5 is a schematic structural diagram of the young mussel seedling-removing and collecting box.
Fig. 6 is a schematic structural diagram of a temperature control system.
Fig. 7 is a schematic structural view of a juvenile mussel filtering and collecting net cage.
FIG. 8 is a schematic view of a drain hole drain tube configuration.
In the figure: 1. a host fish temporary rearing system; 1-1, a temporary host fish culture box; 1-11 parts of a polyethylene supporting plate of a temporary host fish culture box; 1-2, a support frame of the host fish temporary culture box body; 1-3, an isolation net of a temporary host fish culture box body; 2. a juvenile mussel seedling-removing and collecting system; 2-1, taking off the young mussels and collecting a box body; 2-11, taking off seedlings of young mussels and collecting box polyethylene supporting plates; 2-2, young mussel seedling removal and collection box body support frames; 2-3, separating net of young mussel seedling removing and collecting box; 2-4, collecting tanks of young mussels; 2-5, filtering and collecting net cages for young mussels; 2-6, putting a fish mouth; 2-61, knob; 3. a precise fry rearing system; 3-1, accurately cultivating the seedlings in a box; 3-2, accurately cultivating the box body supporting frame by the seedlings; 3-3, spraying water on the steel pipe; 3-31, water jet; 3-32, water quantity regulating valve; 4. a temperature control system; 4-1, a water storage tank; 4-11, connecting pipe; 4-12, water outlet end; 4-2, a temperature controller; 4-3, a temperature detector; 4-4, heating the tube; 4-5, circulating water pump; 4-6, a liquid level floating ball; 4-7, a controller; 5. a water intake system; 5-1, a main water inlet pipe; 5-11, a water inlet amount control valve; 5-2, each branch water inlet pipe; 5-21, a water inlet and outlet water amount control valve; 6. a water outlet system; 6-1, an overflow port drainage main pipe; 6-11, a total water discharge amount control valve; 6-12, branch pipelines; 6-13, valve; 6-2, a main drainage pipe with a drainage hole; 6-3, branch drainage pipes of overflow ports of each system; 6-4, branch trunk pipes of each system; 6-41, and a water quantity control valve for separated water.
Detailed Description
Embodiment 1 a juvenile freshwater mussel takes off seedling and accurate breeding device of seedling: the device comprises a host fish temporary culture system 1, a juvenile mussel seedling removing and collecting system 2, a precise seed culture system 3, a temperature control system 4, a water inlet system 5 and a water outlet system 6;
the host fish temporary culture system 1 comprises a host fish temporary culture box body 1-1, a host fish temporary culture box body support frame 1-2 and a host fish temporary culture isolation net 1-3, wherein the host fish temporary culture isolation net 1-3 is arranged in the culture box 1-1, and a host fish temporary culture box body support frame 1-2 is arranged below the host fish temporary culture box body 1-1;
the young mussel seedling removing and collecting system 2 comprises a young mussel seedling removing and collecting box body 2-1, a box body supporting frame 2-2, a young mussel seedling removing and collecting box isolation net 2-3, a young mussel collecting tank 2-4, a young mussel filtering and collecting net box 2-5 and a fish placing opening 2-6. Young mussel seedling and collecting box isolation net 2-3 and young mussel collecting tank 2-4 are arranged in the young mussel seedling and collecting box 2-1, the young mussel collecting tank 2-4 is positioned at one end of the box, a rectangular opening is firstly formed in the bottom of the box, a rectangular groove is bonded under the opening by using a polyethylene plate, a round hole with the aperture of 5cm is formed in one end of the young mussel collecting tank, the round hole is connected with the young mussel collecting tank by using PVC pipes with the same size, then the round hole is divided into two paths, one path is connected with a drain header pipe 6-2, the other path is connected with a young mussel filtering and collecting net cage 2-5, the young mussel filtering and collecting net cage 2-5 is divided into 2 layers, the upper layer is used for filtering larger impurities such as host fish residual bait, excrement and scales, the number of the filtering net is 30-40 meshes, the lower layer is used for collecting the young mussels, and the collecting net number of 100 and 200 meshes. A box body support frame 2-2 is arranged below the juvenile mussel seedling removing and collecting box body 2-1;
the seedling precise cultivation system 3 comprises a seedling precise cultivation box body 3-1, a seedling precise cultivation box body support frame 3-2 and a water spraying steel pipe 3-3, wherein the seedling precise cultivation box body 3-1 is provided with the seedling precise cultivation box body 3-2 below, the water spraying steel pipe 3-3 is arranged along the periphery above the cultivation box, water spraying ports 3-31 are welded on the steel pipe at equal intervals, and the rear end of each water spraying port is provided with a water quantity regulating valve 3-32;
the temperature control system 4 comprises a water storage tank 4-1, a temperature controller 4-2, a temperature detector 4-3, a heating pipe 4-4, a circulating water pump 4-5, a liquid level floating ball 4-6 and a controller 4-7, wherein the temperature detector 4-3 and the heating pipe 4-4 are arranged at the bottom of the water storage tank 4-1 and are mutually associated through the temperature controller 4-2 to jointly adjust the water temperature within a set temperature range. The liquid level floating ball 4-6 is arranged in the water storage tank and maintains the thermal circulation of the system together with the circulating water pump 4-5 outside the water storage tank through the controller 4-7;
the water inlet system 5 comprises a main water inlet pipe 5-1 and branch water inlet pipes 5-2 of each system, the main water inlet pipe 5-1 is provided with a water inlet water amount control valve 5-11, and the branch water inlet pipes 5-2 of each system are provided with branch water amount control valves 5-21;
the water outlet system 6 comprises an overflow port drainage main pipe 6-1, a drainage hole drainage main pipe 6-2, overflow port branch drainage pipes 6-3 of each system and branch drainage main pipes 6-4 of each system, the overflow port drainage main pipe 6-1 is provided with a total drainage water amount control valve 6-11, and the branch drainage main pipes 6-4 of each system are provided with a branch drainage water amount control valve 6-41.
The host fish temporary culture separation net 1-3 and the young mussel fry and collection box separation net 2-3) are made of 8 pieces of 100 thin films of 110cm multiplied by 2-3cm, 8 pieces of 60-65cm multiplied by 2-3cm, polyethylene plates with the thickness of 0.4-0.6cm and gauze with the aperture of 0.5-1.0cm, can be folded and are suspended on the polyethylene support plates 1-11 and 2-11 at the position 5-7cm from the bottom of the host fish temporary culture box 1-1 and the young mussel fry and collection box 2-1.
The fish placing opening 2-6 is a gate made of polyethylene material. A rectangular opening of 70-80cm multiplied by 35-45cm is dug on a shared side plate of a temporary host fish culture box 1-1, a young clam fry-removing and collecting box 2-1, the distance between the lower end of the rectangular opening and the bottom of the box is 5-7cm, the distance between the upper part of the opening and the bottom of the box is 40-52cm, a gate is made of a polyethylene plate and a waterproof material on one side of the young clam fry-removing and collecting box 2-1, and water outlet of the gate is controlled by six knobs 2-61.
The bottom of the young mussel seedling-removing and collecting box 2-1 forms an inclination angle of 3-5 degrees with the horizontal plane, so that the young mussels can be conveniently gathered into the collecting tank.
The water outlet end of the connecting pipe 4-11 of the water storage tank 4-1 is connected with a circulating water pump 4-5, and the water outlet end 4-12 of the circulating water pump 4-5 is connected with a main water inlet pipe 5-1.
The overflow port drainage main pipe 6-1 is branched into a pipeline 6-12 to enter the water storage tank 4-1 of the temperature control system, and the water inlet is controlled by a valve 6-13.
The 2-5 size of the young mussel filtering and collecting net cage is 40-45cm multiplied by 55-60cm (length multiplied by width multiplied by height).
13. 2 pieces of polyethylene plates with the thickness of 0.8-1.2cm and 200 pieces of 220cm × 50-60cm, 2 pieces of 120 pieces of 130cm × 50-60cm and 1 piece of 200 pieces of 220cm × 120 pieces of 130cm are used as adhesive to manufacture the temporary culture box for the host fish with the length of 200 pieces of 220cm × 120 pieces of 130cm × 50-60cm (length × width × height); the juvenile mussel seedling removing and collecting box and the precise seedling cultivating box of 200 plus materials of 220 plus materials of cm x 120-40 cm (length x width x height) and 130cm of 120 plus materials of 3 plus materials of 220 plus materials of cm x 30-40cm and 2 plus materials of 200 plus materials of 220 plus materials of cm x 120 plus materials of 130cm and 0.8-1.2cm are manufactured into the juvenile mussel seedling removing and collecting box and the precise seedling cultivating box of 200 plus materials of 220 x 120-40 cm (length x width x height), wherein the temporary host fish cultivating box, the juvenile mussel seedling removing and collecting box and the precise seedling cultivating box share one side plate of 200 plus materials of 220 x 50-60cm, and the side plate is provided with a fish placing port;
14. welding 3 200-220-120-130-cm (length, width and height) water tank brackets by 6 stainless steel square tubes (7-8 cm in side length, 0.1-0.2cm in thickness) with the lengths of 200-220-120-130-60 cm, 18-120-130-cm and 12-50-60-cm;
15. welding 2 stainless steel square tubes (7-8 cm in side length and 0.1-0.2cm in thickness) with the length of 200-220cm and the length of 2-120-130 cm at the bottom of the support for placing the temporary host fish culture box into a frame corresponding to the upper part of the support;
16. the water storage tank of the temperature control system with the length multiplied by the width multiplied by the height multiplied by the 150-160cm, the 2 pieces of the polyethylene plates with the thickness of 0.8 to 1.2cm and the 2 pieces of the polyethylene plates with the thickness of 2 pieces of 150 pieces of 160 pieces of 80 to 40cm and 1 piece of 150 pieces of 160 pieces of 80 to 90cm of 1 piece of 150 pieces of 160 pieces of 80 to 90 cm;
17. tightly connecting 3 supports, stably placing a water tank made of polyethylene plates on the supports from left to right in sequence according to the sequence of a host fish temporary culture tank, a young mussel fry removing and collecting tank and a fry precise culture tank, and placing a water storage tank of a temperature control system at the bottom of the host fish temporary culture tank support to form a whole set of device;
18. adhering 3-4cm wide and 0.4-0.6cm thick polyethylene supporting plates around the box body at the positions 5-7cm away from the bottom of the box body in the host fish temporary culture box, the young mussel fry removing box and the collecting box; adhering a polyethylene supporting plate with the width of 4-5cm and the thickness of 0.4-0.6cm at the bottom end of the fish placing opening of the young mussel seedling and collection box;
19. preparing 2 foldable separation nets of 200-piece of 110-cm × 2-3cm, 16-piece of 60-65-cm × 2-3cm, thickness of 0.4-0.6cm and gauze with aperture of 0.5-1.0cm into foldable separation nets of 200-piece of 220-120-piece of 130cm, and respectively placing the foldable separation nets on polyethylene supporting plates in a temporary host fish culture box and a young host mussel seedling removing and collecting box;
20. a fish placing port of 70-80cm multiplied by 35-45cm (length multiplied by width) is arranged on a shared side plate of the host fish temporary breeding box, the young mussel fry removing box and the collecting box, a gate is made of a polyethylene plate and a waterproof material on one side of the young mussel fry removing box and the collecting box, and water outlet of the gate is controlled by six knobs;
21. a circulating water pump with power of 370-; a liquid level floating ball is arranged in the water storage tank and is associated with the circulating water pump to control the starting and stopping of the circulating water pump; 3 heating pipes of 220v and 1 temperature detector are arranged at the bottom of the water tank and connected with an external temperature controller to jointly regulate and control the water temperature of the water storage tank;
22. opening a rectangular opening of 90-100cm multiplied by 30-35cm (length multiplied by width) at one side in the young mussel seedling-removing and collecting box, using 2 polyethylene plates of 90-100cm multiplied by 15-20cm, 2 polyethylene plates of 30-35cm multiplied by 15-20cm and 1 polyethylene plate of 90-100cm multiplied by 30-35cm with the thickness of 0.8-1.2cm, using polyethylene glue as an adhesive, and manufacturing a young mussel collecting tank of 90-100cm multiplied by 30-35cm multiplied by 15-20cm (length multiplied by width multiplied by height) below the opening;
23. one end of the young mussel collecting tank is provided with a round hole with the aperture of 4-4.5cm, the round hole is connected with the young mussel collecting tank by PVC pipes with the same size, and then the round hole is divided into two paths, one path is connected with a main drain pipe, and the other path is connected with a young mussel filtering and collecting net cage;
24. 24 polyethylene plates with the thickness of 0.4-0.6cm and 40-45cm multiplied by 2-3cm and a gauze with the mesh size of 100 and 200 are used for manufacturing the juvenile mussel filtering and collecting net cage with the total size of 40-45cm multiplied by 55-60cm (length multiplied by width multiplied by height) and an upper and lower two-layer structure; 4 polyethylene plates with the thickness of 0.4-0.6 and the thickness of 40-45cm multiplied by 2-3cm are made into a supporting frame at the periphery of the middle part in the net cage, 8 polyethylene plates with the thickness of 0.4-0.6 and the thickness of 39-44cm multiplied by 1.5-2cm are made into a cover net with the thickness of 30-40 meshes, and the cover net can be placed on the supporting frame at the middle part of the net cage; the bottom of the net cage is funnel-shaped, and a valve is arranged at the bottommost end;
13. a main water inlet pipeline is arranged on one side of the device, the pipe diameter is 4.0-5.0cm, then the main water inlet pipeline is branched to each system through a reducing branch of the main water inlet pipeline, the pipe diameter of each branch pipeline is 2.5-3.2cm, and the main water inlet pipeline and each branch water inlet pipeline are respectively provided with a water quantity control valve; the upper end in the seedling precision cultivation pool is provided with water inlet steel pipes with the same diameter as the branch water inlet pipes, the water inlet steel pipes are welded with water spray ports with the pipe diameters of 0.5-0.8cm at equal intervals, and the rear ends of the water spray ports are provided with water quantity regulating valves;
14. an overflow port drainage main pipe is arranged on the other side of the device, and the diameter of the pipeline is 3.2-4 cm; the overflow ports of each system are respectively connected with an overflow port drainage main pipe through branch pipes with the pipe diameters of 2.5-3.2 cm; arranging a main drainage pipe with drainage holes at the bottom of the device, wherein the diameter of the pipeline is 5-6.5cm, the drainage ports of all systems are respectively connected with the main drainage pipe through branch pipes with the pipe diameter of 5-6.5cm, and the drainage ports are provided with water outlet valves; the overflow port drainage main pipe and the drain main pipe are connected at the rear end and are discharged together;
15. combining the host fish temporary culture system, the young mussel seedling removing and collecting system, the precise seed culture system, the temperature control system, the water inlet system and the water outlet system, thus completing the device for removing the young mussels and the precise seed culture of the freshwater mussels;
16. adding 10-20L of clean culture water into a water tank, and starting an oxygenation pump to increase the dissolved oxygen content of the water body (>5 mg/L). The freshwater mussel hook larvae are placed in a water tank and scattered by a stirrer to be uniformly distributed in a water body (the density is about 50000-. And then the host fish infected with the hooke larvae is transferred to a temporary rearing box for rearing, the host fish is regularly and quantitatively fed every day, and the separation net in the temporary rearing box is used for separating residual bait and excrement from the fish body, so that the water quality is prevented from being polluted due to the stirring of the host fish, and the survival rate of the host fish is prevented from being influenced. The host fish is driven to the young mussel fry-off and collection box through the fish-placing opening 2-3 days before the young mussel reaches the fry-off accumulated temperature, and the method can avoid fish body damage and stress caused by transferring the caught host fish. When the fry-off accumulated temperature is reached, the young mussels which are successfully metamorphosed and the larval hamulus which is not normally metamorphosed and dies in the process can fall off from the host fish body and settle to the bottom of the fry-off young mussel and the collection box. Because the young mussel is taken off and the separation net is arranged in the collecting box, the problem that the host fish is disturbed to stir the bottom of the pool due to production activities is avoided, the young mussel is lost along with overflow of water flow, and the young mussel is prevented from being eaten by the host fish. The upper layer of the filtering and collecting net cage is used for intercepting large impurities such as host fish excrement, water body sediments, dropped fish scales and the like, the lower layer of the filtering and collecting net cage is used for collecting surviving juvenile mussels and death juvenile leptocypris larvae which fail in metamorphosis, and therefore the risk of anoxic death of the juvenile mussels (respiratory organs which are not completely developed) buried in the impurities such as the host fish excrement and the like can be reduced, and the key seedling cultivation indexes such as juvenile leptocypris parasitic quantity, seedling emergence time, juvenile mollusk metamorphosis rate and the like can be effectively counted. Quantitatively putting the collected young mussels into a young mussel cultivation box after counting for accurate seed cultivation.
Example 2: combining example 1 with the accompanying drawings: a method for manufacturing a device for the seedling removal and fine cultivation of young freshwater mussels comprises the following steps: the method specifically comprises the following steps:
1) and manufacturing the box body: 2 pieces of 200-piece 220-cm × 50-60cm, 2 pieces of 120-piece 130-cm × 50-60cm and 1 piece of 200-piece 220-cm × 120-piece 130cm polyethylene plates with the thickness of 0.8-1.2cm are used for preparing the 200-piece 220-cm × 120-piece 130-cm × 50-60cm host fish temporary culture box by using polyethylene glue as an adhesive; the juvenile mussel seedling removing and collecting box and the precise seedling cultivating box of 200 plus materials of 220 plus materials of multiplied by 120-40 cm and 2 pieces of 200 plus materials of 220 plus materials of multiplied by 120 plus materials of 130cm and 130cm are manufactured by using polyethylene plates of 4 pieces of 200 plus materials of 220 plus materials of multiplied by 30-40cm, 3 pieces of 120 plus materials of 130cm plus materials of multiplied by 30-40cm and 0.8-1.2cm, wherein the host fish temporary cultivating box, the juvenile mussel seedling removing and collecting box share one side plate of 200 plus materials of 220 plus materials of multiplied by 50-60cm, and the side plate is provided with a fish placing port;
2) and manufacturing a bracket: 6 stainless steel square tubes with the length of 200-220cm, 18 stainless steel square tubes with the length of 120-130cm and 12 stainless steel square tubes with the length of 50-60cm are 7-8cm in side length; the thickness is 0.1-0.2cm, and the water tank bracket is welded into 3 water tank brackets with the thickness of 200-;
2 stainless steel square tubes with the length of 200-220cm and the length of 2 stainless steel square tubes with the length of 120-130cm are arranged at the bottom of the support for placing the temporary host fish culture box, and the side length is 7-8 cm; welding the frame with the thickness of 0.1-0.2cm into a frame corresponding to the upper part;
3) and manufacturing the water storage tank: the water storage tank of the temperature control system with the thickness of 150-;
4) and the general assembly of the breeding box is connected: tightly connecting 3 supports, stably placing a water tank made of polyethylene plates on the supports from left to right in sequence according to the sequence of a host fish temporary culture tank, a young mussel fry removing and collecting tank and a fry precise culture tank, and placing a water storage tank of a temperature control system at the bottom of the host fish temporary culture tank support to form a whole set of device;
5) and the inner bottom of the cultivation box is connected: adhering 3-4cm wide and 0.4-0.6cm thick polyethylene supporting plates around the box body at the positions 5-7cm away from the bottom of the box body in the host fish temporary culture box, the young mussel fry removing box and the collecting box; adhering a polyethylene supporting plate with the width of 4-5cm and the thickness of 0.4-0.6cm at the bottom end of the fish placing opening of the young mussel seedling and collection box;
preparing 2 foldable separation nets of 200-piece and 220-piece and 120-piece 130-piece by using 16 pieces of polyethylene plates of 100-piece and 110-piece multiplied by 2-3cm, 16 pieces of 60-65-piece and 2-piece multiplied by 2-3cm and gauze with the thickness of 0.4-0.6cm and the aperture of 0.5-1.0cm, and respectively placing the foldable separation nets on polyethylene supporting plates in a temporary host fish culture box and a young clam fry-removing and collecting box;
6) the auxiliary parts of the breeding box are arranged: a fish placing port of 70-80cm multiplied by 35-45cm is arranged on a common side plate of the temporary host fish breeding box, the young mussel fry removing box and the collecting box, a gate is made of a polyethylene plate and a waterproof material on one side of the young mussel fry removing box and the collecting box, and water outlet of the gate is controlled by six knobs;
a circulating water pump with power of 370-; a liquid level floating ball is arranged in the water storage tank and is associated with the circulating water pump to control the starting and stopping of the circulating water pump; 3 heating pipes of 220v and 1 temperature detector are arranged at the bottom of the water tank and connected with an external temperature controller to jointly regulate and control the water temperature of the water storage tank;
7) and preparing a juvenile mussel collecting tank: opening a rectangular opening of 90-100cm multiplied by 30-35cm at one side in the young mussel seedling-removing and collecting box, and manufacturing a young mussel collecting tank of 90-100cm multiplied by 30-35cm multiplied by 15-20cm below the opening by using 2 polyethylene plates of 90-100cm multiplied by 15-20cm, 2 polyethylene plates of 30-35cm multiplied by 15-20cm and 1 polyethylene plate of 90-100cm multiplied by 30-35cm with the thickness of 0.8-1.2cm and using polyethylene glue as an adhesive;
one end of the young mussel collecting tank is provided with a round hole with the aperture of 4-4.5cm, the round hole is connected with the young mussel collecting tank by PVC pipes with the same size, and then the round hole is divided into two paths, one path is connected with a main drain pipe, and the other path is connected with a young mussel filtering and collecting net cage;
preparing a juvenile mussel filtering and collecting net cage with an upper and lower two-layer structure of 40-45cm multiplied by 55-60cm in total size by using 24 polyethylene plates with the thickness of 0.4-0.6cm and 40-45cm multiplied by 2-3cm and a 100-mesh gauze with 200 meshes; 4 polyethylene plates with the thickness of 0.4-0.6 and the thickness of 40-45cm multiplied by 2-3cm are made into a supporting frame at the periphery of the middle part in the net cage, 8 polyethylene plates with the thickness of 0.4-0.6 and the thickness of 39-44cm multiplied by 1.5-2cm are made into a cover net with the thickness of 30-40 meshes, and the cover net can be placed on the supporting frame at the middle part of the net cage; the bottom of the net cage is funnel-shaped, and a valve is arranged at the bottommost end;
8) and arranging a water inlet system: a main water inlet pipeline is arranged on one side of the device, the pipe diameter is 4.0-5.0cm, then the main water inlet pipeline is branched to each system through a reducing branch of the main water inlet pipeline, the pipe diameter of each branch pipeline is 2.5-3.2cm, and the main water inlet pipeline and each branch water inlet pipeline are respectively provided with a water quantity control valve; the upper end in the seedling precision cultivation pool is provided with water inlet steel pipes with the same diameter as the branch water inlet pipes, the water inlet steel pipes are welded with water spray ports with the pipe diameters of 0.5-0.8cm at equal intervals, and the rear ends of the water spray ports are provided with water quantity regulating valves;
9) and arranging a drainage system: an overflow port drainage main pipe is arranged on the other side of the device, and the diameter of the pipeline is 3.2-4 cm; the overflow ports of each system are respectively connected with an overflow port drainage main pipe through branch pipes with the pipe diameters of 2.5-3.2 cm; arranging a main drainage pipe with drainage holes at the bottom of the device, wherein the diameter of the pipeline is 5-6.5cm, the drainage ports of all systems are respectively connected with the main drainage pipe through branch pipes with the pipe diameter of 5-6.5cm, and the drainage ports are provided with water outlet valves; the overflow port drainage main pipe and the drain main pipe are connected at the rear end and are discharged together;
9) and final assembly: combining the host fish temporary culture system, the young mussel seedling removing and collecting system, the precise seed culture system, the temperature control system, the water inlet system and the water outlet system, thus completing the device for removing the young mussels and the precise seed culture of the freshwater mussels;
10) cultivating water and using: adding 10-20L of clean culture water into a water tank, opening an oxygenation pump to increase the dissolved oxygen content of the water body to be more than 5mg/L, putting the freshwater mussel hook larvae into the water tank, scattering the freshwater mussel hook larvae by using a stirrer to uniformly distribute the freshwater mussel hook larvae in the water body (the density is about 50000-60000/L), putting host fishes (in batches) into the water tank to infect for 10-15min, then transferring the host fishes infected with the freshwater mussel larvae into a temporary culture tank to culture, regularly and quantitatively feeding every day, separating residual bait and excrement from fish bodies by using a separation net in the temporary culture tank to prevent water quality from being polluted due to stirring of the host fishes, and driving the host fishes into young mussel fry-releasing and collecting tanks 2-3 days before young mussel fry-releasing and temperature accumulating, so that fish body damage and stress caused by transferring the caught host fishes can be avoided; when the fry-off accumulated temperature is reached, the young mussels which are successfully metamorphosed and the larval hamulus which is not normally metamorphosed and dies in the process can fall off from the host fish body and settle to the bottom of the fry-off young mussel and the collection box; because the young mussel is separated from the fry and the separation net is arranged in the collecting box, the host fish is prevented from being disturbed and stirring the bottom of the pool by production activities, the young mussel is lost along with the overflow of water flow, and the young mussel can be prevented from being eaten by the host fish; the upper layer of the filtering and collecting net cage is used for intercepting large impurities such as host fish excrement, water body sediments, dropped fish scales and the like, the lower layer of the filtering and collecting net cage is used for collecting surviving juvenile mussels and death juvenile mussels failing in metamorphosis, so that the risk of oxygen deficiency death of the juvenile mussels buried in the impurities such as the host fish excrement and the like can be reduced, the key seedling cultivation indexes such as juvenile mussel parasitic quantity, seedling falling time, juvenile mussel metamorphosis rate and the like can be effectively counted, and the collected juvenile mussels are quantitatively put into a juvenile mussel cultivation box for precise seedling cultivation.
Application example 1 the device prepared in example 1 is adopted to efficiently develop juvenile hyriopsis cumingii seedling shedding and seedling accurate cultivation
In 2019, 3-4 months, utilize at the protection of little gold mountain farm village china freshwater shellfish germplasm resource of Anhui water charm environmental protection stockings and scientific research breeding center the utility model discloses the device: 1 200cm × 120cm × 50cm (length × width × height) and 2 200cm × 120cm × 30cm (length × width × height) polyethylene water tanks are respectively placed on 200cm × 120cm × 50cm (length × width × height) stainless steel brackets, and then 1 150cm × 80cm × 35cm (length × width × height) polyethylene water tank is placed on a steel frame at the bottom of the temporary host fish rearing box; pond water filtered by a 200-mesh bolting silk net is filled into each water tank through a water inlet pipeline, the circulation of the flowing water of the whole system is kept through an overflow port, the water temperature in the water storage tank of the temperature control system is adjusted to 27-28 ℃ by a temperature detector, a heating pipe and a temperature controller, and then the water in the water storage tank is extracted by a circulating water pump with the power of 370w to enter the circulation, so that the water temperature of the whole system is kept at about 23-24 ℃.
80 pelteobagrus fulvidraco (the average body length is 15.8 +/-0.5 cm) parasitizing hyriopsis cumingii hook medium larvae in the same batch are put into the temporary host fish rearing box, and the average parasitizing amount of the hyriopsis cumingii hook medium larvae on each pelteobagrus fulvidraco body is about 1800 +/-525. The special compound feed for the pelteobagrus fulvidraco is fed into the temporary rearing box of the host fish in the morning and evening once a day, and the feeding amount is 3-5 percent of the weight of the fish every day, namely about 1.2-2 kg. Feeding and culturing the host fish in a temporary culture box for 4-5 days, opening a fish placing opening, placing the host fish into a juvenile mussel fry-removing and collecting box for fry-removing, and removing the fries after 2-3 days, so that the hooked larvae on the host fish bodies are basically removed. In the period, young mussels are separated and the bottom of the collecting box is washed every day, so that the separated young mussels are collected in the collecting tank at one end of the box bottom, then the valve is opened, and the young mussels, dead larval hamus, host fish excrement, fallen fish scales and other sundries collected in the collecting tank are placed into a young mussel filtering and collecting net cage (the number of the upper layer gauze is 10 meshes, and the number of the lower layer gauze is 100 meshes) together for separating the young mussels.
Microscopic observation shows that no residual juvenile mussel and dead leptomens are found in the upper layer gauze, namely, the live juvenile mussel and the dead leptomens are collected in the lower layer gauze. Then, the number of the fallen young hyriopsis cumingii and the hooked clam larvae is counted through sampling, on one hand, the seedling falling success rate can be evaluated, on the other hand, accurate seedling cultivation can be carried out, and a certain amount of young hyriopsis cumingii is put into an accurate seedling cultivation box for accurate seedling cultivation.
The examination shows that: the pelteobagrus fulvidraco is used as the host fish of the hyriopsis cumingii, the survival rate of the host fish during the metamorphosis development of the fish larvae is 100%, the juvenile mussels which are successfully metamorphosed begin to appear at 5 +/-0.5 d, the concentrated seedling shedding lasts for 3d, the total amount of 80 pelteobagrus fulvidraco parasitic hook larvae is 144000 +/-42000, the juvenile mussels which are successfully metamorphosed 84384 +/-9408 are successfully metamorphosed, and the metamorphosis rate is 58.6 +/-22.4%. The abnormal young mussels 70000 +/-6200 are put into the precise seed incubator, and 31220 +/-1147 young mussels grow and develop, with the survival rate of 44.6 +/-18.5 percent.
The utility model overcomes it is slow because of the low metamorphosis development of hook-medium larva that causes of temperature excessively in the conventional art to and the artificial operation frequently causes host fish damage, thereby make host fish survival rate relatively lower (generally be less than 80%), the seed can be ingested a large amount by the host fish, seed and death hook-medium larva, host fish incomplete bait, host fish excrement and the fish scale that drops mix together and be difficult to separate and easy oxygen deficiency is lethal, cause the seed loss, be difficult to the parasitic effect of accurate evaluation host fish simultaneously, can't carry out bottleneck difficult problems such as accurate cultivation of seed. The device can improve the survival rate of the host fish (up to 100 percent), avoid the feeding of the offspring seeds by the host fish, efficiently separate the young mussels, accurately evaluate the parasitic effect (including parasitic amount, fry shedding time and metamorphosis rate) of the host fish and accurately cultivate the offspring seeds. Therefore, the juvenile freshwater mussels are taken off and cultivated efficiently, and support is provided for the resource proliferation and protection of the juvenile freshwater mussels.
The present invention has been described in detail with reference to the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments, but is intended to cover various insubstantial modifications, including those made by the method and technical solutions of the present invention; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (7)
1. The utility model provides a young freshwater mussel takes off seedling and smart breeding device of seed which characterized in that: the device comprises a device host fish temporary rearing system, a young mussel fry-off and collecting system, a precise fry rearing system, a temperature control system, a water inlet system and a water outlet system; the host fish temporary culture system comprises a host fish temporary culture box body, a host fish temporary culture box body support frame and a host fish temporary culture isolation net arranged in the host fish temporary culture box body;
the young mussel seedling removing and collecting system comprises a young mussel seedling removing and collecting box body, a young mussel seedling removing and collecting box body supporting frame, a fish placing opening arranged on the side surface of the young mussel seedling removing and collecting box body, a young mussel seedling removing and collecting isolation net and a young mussel collecting tank which are arranged inside the young mussel seedling removing and collecting box body, wherein the young mussel collecting tank is connected with a young mussel filtering and collecting net box arranged outside the young mussel seedling removing and collecting box body through a young mussel collecting pipeline; the juvenile mussel collecting tank is of a cuboid leakage tank structure, an opening at one end of the juvenile mussel collecting tank is connected with an external juvenile mussel filtering and collecting net cage through a PVC pipe, and a valve is arranged on a pipeline;
the accurate seedling cultivation system comprises an accurate seedling cultivation box body, an accurate seedling cultivation box body supporting frame and a water spraying pipeline;
the temperature control system comprises a water storage tank, a water storage temperature controller, a water storage temperature detector, a water storage heating pipe, a water storage circulating water pump and a water storage liquid level floating ball; a temperature control assembly, a primary filtering assembly and a liquid level floating ball assembly are arranged in the water storage tank;
the water spraying pipeline is made of steel pipes, and a plurality of water spraying nozzles are distributed towards one side of the middle of the cultivation box;
the water inlet system comprises a water inlet main pipe and branch water inlet pipes which are connected in a branch manner and enter a host fish temporary culture system, a young mussel seedling removal and collection system and a seedling accurate culture system, wherein the water inlet main pipe and each branch water inlet pipe are respectively provided with a water inlet amount control valve for controlling water inlet;
the water outlet system comprises overflow outlet water arranged in a host fish temporary culture system, a young mussel seedling removal and collection system and a seedling accurate culture system, drain outlet water arranged in each system, an overflow outlet main drain pipe, a drain water quantity control valve, branch pipelines, a drain valve, a drain hole main drain pipe, overflow outlet branch drain pipes of each system, branch drain pipes of each system and a water quantity control valve, wherein the drain outlet controls water discharge through the valve and is connected with the tail end of the drain outlet in a gathering way.
2. The device for juvenile freshwater mussel to take off and smart culture of the juvenile freshwater mussel as claimed in claim 1, wherein: the host overflow port of the temporary host fish culture box is 45-55cm away from the bottom of the box, and the host drain port of the temporary host fish culture box is positioned at the bottom of the other end at the same side of the overflow port;
the seedling-removing overflow port of the young mussel seedling-removing box is 25-35cm away from the bottom of the box, the accurate overflow port of the accurate incubator is 25-35cm away from the bottom of the box, the drain port of the young mussel seedling-removing box is positioned at the bottom of the collecting tank opposite to the overflow port, and the drain port of the accurate incubator is positioned at the bottom below the overflow port; and a drain port is arranged at the bottom of the box body of the water storage tank of the temperature control system.
3. The device for juvenile freshwater mussel to take off and smart culture of the juvenile freshwater mussel as claimed in claim 1, wherein: the middle branch of the overflow port drainage main pipe enters a water storage tank of the temperature control system, and water inlet is controlled through a valve.
4. The device for juvenile freshwater mussel to take off and smart culture of the juvenile freshwater mussel as claimed in claim 1, wherein: the bottom of the young mussel seedling-removing and collecting box is 3-50A slope surface of an inclination angle.
5. The device for juvenile freshwater mussel to take off and smart culture of the juvenile freshwater mussel as claimed in claim 1, wherein: the isolation net is a foldable cover net made of polyethylene materials and gauze.
6. The device for juvenile freshwater mussel to take off and smart culture of the juvenile freshwater mussel as claimed in claim 1, wherein: the bottom end of the fish placing opening is 5-7cm away from the bottom of the box, and a gate made of polyethylene material and waterproof material is arranged.
7. The device for juvenile freshwater mussel to take off and smart culture of the juvenile freshwater mussel as claimed in claim 1, wherein: the juvenile mussel filtering and collecting net cage is divided into an upper layer and a lower layer, the cuboid net cage with the structure of the upper layer and the lower layer is made of 100-plus-200-mesh gauze and polyethylene materials, a layer of support frame is arranged around the middle part of the net cage, a cover net is made of 30-40-mesh gauze and can be placed on the support frame in the middle part of the net cage; the bottom of the net cage is funnel-shaped, and a valve is arranged at the bottommost end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022625991.6U CN213939363U (en) | 2020-11-13 | 2020-11-13 | Juvenile freshwater mussel seedling and accurate seed cultivation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022625991.6U CN213939363U (en) | 2020-11-13 | 2020-11-13 | Juvenile freshwater mussel seedling and accurate seed cultivation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213939363U true CN213939363U (en) | 2021-08-13 |
Family
ID=77208835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022625991.6U Active CN213939363U (en) | 2020-11-13 | 2020-11-13 | Juvenile freshwater mussel seedling and accurate seed cultivation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213939363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115500294A (en) * | 2022-09-30 | 2022-12-23 | 广西巴马鑫坚实业集团有限公司 | Method for breeding snail seedlings |
-
2020
- 2020-11-13 CN CN202022625991.6U patent/CN213939363U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115500294A (en) * | 2022-09-30 | 2022-12-23 | 广西巴马鑫坚实业集团有限公司 | Method for breeding snail seedlings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109090004B (en) | Block type bionic pond propagation seedling raising equipment and method | |
| CN103120140B (en) | Scallop cultivation method | |
| CN103461248B (en) | Fish fry cultivation method of acrossocheilus yunnanensis | |
| CN112021230B (en) | Shrimp fry breeding device and method for breeding crayfish species with uniform specifications by using pond | |
| CN104472412A (en) | Coilia ectenes step type breeding method | |
| CN1729763A (en) | Method for cultivating antispdix offspring and apparatus used thereby | |
| CN109566497A (en) | A kind of Pinctada martensii seedling optimization hatching, cultivating method | |
| CN110235826A (en) | A kind of thick breeding method of red claw crayfish seed brooder mark | |
| CN107646763A (en) | A kind of macula lutea basket fish artificial fecundation method | |
| CN110074023B (en) | Navodon septentrionalis fry breeding method | |
| CN101946728B (en) | High-yield large-scale breeding method carried out by scientifically utilizing autumn cannon-head macrobrachium nipponense larvae | |
| CN213939363U (en) | Juvenile freshwater mussel seedling and accurate seed cultivation device | |
| CN112243937A (en) | Juvenile freshwater mussel seedling removing and accurate juvenile freshwater mussel culturing device and manufacturing method | |
| CN1194609C (en) | Techique for breeding aquation yound fish of 'Songjiang' weever | |
| CN113349117A (en) | Method and device for ecologically breeding rapana venosa in pond | |
| Parazo et al. | Sea bass hatchery operations | |
| CN111771792A (en) | Parent breeding method and hatching device for improving breeding efficiency of crayfishes | |
| Al Ghozali et al. | A review of hatchery techniques of Red Tilapia (Oreochromis niloticus) at UPT of Freshwater Aquaculture Fisheries (PBAT), Pasuruan | |
| CN1293802C (en) | Method for swimming type shellfish hatching and larva cultivation | |
| CN213784892U (en) | Multi-layer drawer type young freshwater mussel cultivation device | |
| CN110178760B (en) | Method for breeding high-gynogenetic fry of parent fish of cynoglossus semilaevis in nutrition regulation and control manner | |
| CN107211932A (en) | A kind of abalone offspring seed cultivation method | |
| KR100588419B1 (en) | Development of includuced spawning and seeding production techniques for the filefish | |
| CN111149735A (en) | Large-scale cultivation method of siganus oramin fry | |
| CN221104490U (en) | Dedicated living bait throwing system is cultivated to coilia ectenes offspring seed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |