CN112586435B - Aquaculture equipment and aquaculture method - Google Patents
Aquaculture equipment and aquaculture method Download PDFInfo
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- CN112586435B CN112586435B CN202011475653.7A CN202011475653A CN112586435B CN 112586435 B CN112586435 B CN 112586435B CN 202011475653 A CN202011475653 A CN 202011475653A CN 112586435 B CN112586435 B CN 112586435B
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- 238000009360 aquaculture Methods 0.000 title claims abstract description 63
- 244000144974 aquaculture Species 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 142
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000001301 oxygen Substances 0.000 claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 241000196324 Embryophyta Species 0.000 claims description 51
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- 230000005855 radiation Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 239000013505 freshwater Substances 0.000 abstract description 33
- 238000006213 oxygenation reaction Methods 0.000 abstract description 11
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Images
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention is suitable for the technical field of aquaculture, and provides aquaculture equipment and an aquaculture method. The aquaculture equipment comprises a water pipe network; at least one piece of culture container; the culture container comprises a hollow member; a plurality of layers of culture chambers for living aquatic products are arranged on the hollow piece; the hollow piece is communicated with the culture room through a through hole; at least one impeller pump for mixing water and gas and exhausting the gas from the water and gas mixture to obtain water rich in dissolved oxygen; the resulting dissolved oxygen enriched water is pumped through the water pipe network into the hollow member. The water rich in dissolved oxygen pumped into the culture room has no bubbles and excellent oxygenation effect, and is beneficial to the growth of freshwater shrimps. In addition, the water rich in dissolved oxygen enters the culture room through the through hole, so that a large flow rate can not be generated, the impeller pump is also arranged at a place far away from the culture container, and the generated noise can not influence the growth of freshwater shrimps.
Description
Technical Field
The invention belongs to the technical field of aquaculture, and particularly relates to aquaculture equipment and an aquaculture method.
Background
The cultivation of freshwater shrimps requires planting submerged plants, floating leaves and other aquatic weeds in a pond. The aquatic weed not only can provide food sources for the freshwater shrimps, but also can play a role in purifying water quality, and can provide places and spaces for unshelling, hiding and phototaxis for the freshwater shrimps. Therefore, there is a theory that "one pond shrimp should be cultivated, and first one pond grass should be cultivated".
However, the large-area planting and proliferation of aquatic weeds in ponds also presents some drawbacks. During the daytime, the dissolved oxygen in the pond is saturated, and at night, the photosynthesis stops, the water plants perform dark reaction, a large amount of dissolved oxygen is consumed, and the phenomenon of hypoxia usually occurs at night, and the phenomenon is more serious as the water plants are more. So that the oxygenation facilities are necessary to be arranged in the shrimp culture pond.
The existing shrimp pond is provided with oxygenation facilities mainly comprising a water truck, a flushing type oxygenation device, a microtube, an inflation head and the like. The flow of water in the shrimp pond is increased through a waterwheel, a flushing type oxygenation device and the like, the contact area of the water and air is increased, and then the oxygen content of the water is increased; or the oxygen content of the water is improved by introducing air or oxygen into the water through the micro-pipe and the air charging head.
The applicant of the present invention found that, in implementing the above technical solutions, the above technical solutions have at least the following drawbacks:
due to the existence of aquatic weeds, the waterwheel and the flushing type oxygenation device have limited improvement on the fluidity of the shrimp pond water, the oxygenation effect is poor, and the freshwater shrimps are sensitive to the flow rate of the water, so that the growth of the freshwater shrimps is not facilitated due to the larger flow rate; meanwhile, the waterwheel and the flushing type oxygenation device have high noise during operation, and the growth of freshwater shrimps can be influenced. The microtubules and the air charging heads are used for charging air into water, a large amount of aquatic weeds can also block air, so that the air charging range is limited, in addition, when air bubbles in the water rise, oxygen-enriched water can be brought to the surface layer, and freshwater shrimps do not like air bubbles, mainly live on the aquatic weeds, the actual oxygenation effect is limited, and the oxygen demand of the freshwater shrimps cannot be met.
Disclosure of Invention
An object of an embodiment of the present invention is to provide an aquaculture device, which aims to solve the problems mentioned in the background art.
Embodiments of the present invention are thus achieved, an aquaculture apparatus comprising:
a water pipe network;
at least one piece of culture container; the culture container comprises a hollow member; a plurality of layers of culture chambers for living aquatic products are arranged on the outer surface of the hollow piece along the axial direction of the hollow piece; the hollow piece is communicated with the culture room through a through hole;
at least one impeller pump for mixing water and gas and exhausting the gas from the water and gas mixture to obtain water rich in dissolved oxygen; the resulting dissolved oxygen enriched water is pumped through the water pipe network into the hollow member.
Preferably, the culture chamber is composed of a plurality of culture grids which are radially arranged with the center of the culture chamber as a radial center and the radial direction of the hollow part as a radial direction; the culture lattice is communicated with the hollow piece through a through hole.
Preferably, a sealing element is arranged at one end of the hollow element; one side of the sealing element is provided with a water inlet pipe which is communicated with the water pipe network, and the other side of the sealing element is provided with a filtering element.
Preferably, the filtering piece is a cylindrical mesh enclosure.
Preferably, the impeller pump includes:
a pump housing;
the water inlet net cover is arranged at one end of the pump shell and used for filtering impurities in water entering the pump shell;
a floating platform connected with the pump shell and used for floating the impeller pump on the water surface;
the rotating shaft is rotatably arranged in the pump shell;
the motor is used for driving the rotating shaft to rotate;
the impeller is arranged on the rotating shaft;
a funnel tube; the big head section of the funnel tube is communicated with the pump shell;
the exhaust pipe is communicated with the funnel pipe;
the exhaust small pipe is vertically arranged on the exhaust pipe and is communicated with the exhaust pipe;
and the water outlet pipe is communicated with the exhaust pipe.
Preferably, the impeller includes:
the impeller inner ring is fixedly arranged on the rotating shaft;
an impeller outer ring;
a blade; the blade is provided with a plurality of blades; the blades are radially arranged between the impeller outer ring and the impeller inner ring by taking the center of the impeller inner ring as a radiation center and taking the radial direction of the impeller inner ring as a radiation direction; an included angle exists between the cross section of the impeller inner ring and the blades;
and the fixing ring is used for fixing the blades together.
It is a further object of an embodiment of the present invention to provide an aquaculture method implemented with an aquaculture apparatus according to any of the preceding claims, said aquaculture method comprising the steps of:
cleaning a culture space;
planting aquatic weeds in the culture space;
installing aquaculture equipment in the aquaculture space;
and (5) stocking the aquatic products in the culture space and starting the aquaculture equipment.
The aquaculture equipment provided by the embodiment of the invention comprises a water pipe network; at least one piece of culture container; the culture container comprises a hollow member; a plurality of layers of culture chambers for living aquatic products are arranged on the outer surface of the hollow piece along the axial direction of the hollow piece; the hollow piece is communicated with the culture room through a through hole; at least one impeller pump for mixing water and gas and exhausting the gas from the water and gas mixture to obtain water rich in dissolved oxygen; the resulting dissolved oxygen enriched water is pumped through the water pipe network into the hollow member.
Compared with the prior art, the invention obtains the water rich in dissolved oxygen by adopting the impeller pump, and pumps the water rich in dissolved oxygen into the culture room through the water pipe network, so that the water near the culture room can be ensured to be the water rich in dissolved oxygen, and the growth of freshwater shrimps is facilitated. In addition, the water rich in dissolved oxygen enters the culture room through the through hole, so that a large flow rate can not be generated, the impeller pump is also arranged at a place far away from the culture container, and the generated noise can not influence the growth of freshwater shrimps. In addition, the water which is pumped into the cultivation room and is rich in dissolved oxygen has no bubbles, has excellent oxygenation effect, and can meet the oxygen demand of freshwater shrimps.
Drawings
FIG. 1 is a schematic structural view of a culture container according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a cultivation lattice according to an embodiment of the present invention;
FIG. 3 is a schematic view of a hollow member according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an impeller pump according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an impeller according to an embodiment of the present invention.
In the accompanying drawings: 1. a water inlet pipe; 2. a cultivation lattice; 3, hollow parts; 6. a through hole; 7. a cylindrical mesh enclosure; 9. a water inlet net cover; 10. a motor; 11. a floating platform; 12. an impeller; 13. an exhaust small pipe; 14. a water outlet pipe; 15. an exhaust pipe; 16. a funnel tube; 17. a rotating shaft; 18. a pump housing; 19. an impeller outer ring; 20. a blade; 21. a fixing ring; 22. an impeller inner ring.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
Example 1
Referring now to FIG. 1, there is provided an aquaculture apparatus according to one embodiment of the present invention, comprising:
a water pipe network;
at least one piece of culture container; the culture container comprises a hollow member 3; along the axial direction of the hollow member 3, a plurality of layers of culture chambers for living aquatic products are arranged on the outer surface of the hollow member 3; the hollow piece 3 is communicated with the culture room through a through hole 6;
at least one impeller pump for mixing water and gas and exhausting the gas from the water and gas mixture to obtain water rich in dissolved oxygen; the resulting dissolved oxygen enriched water is pumped through the water pipe network into the hollow member 3.
In the embodiment of the invention, the aquaculture equipment can be used for aquaculture of various kinds of aquatic products, such as freshwater shrimps, blue crabs and the like. When freshwater shrimps are used as an example for culturing freshwater shrimps, the aquaculture equipment is installed in a culture space (the culture space can be a pond, a lake, an artificially constructed culture pond and the like), aquatic weeds are planted in the culture space, and because freshwater shrimps eat the aquatic weeds and like to inhabit the aquatic weeds, the culture containers are arranged in the area where the aquatic weeds are located, and the number of the culture containers can be set according to the needs according to the size of the area where the aquatic weeds are located. The impeller pump is communicated with the culture containers through the water pipe network, is in a horizontal floating type, and horizontally floats on the water surface of the culture space, and the number of the impeller pump is set according to the number of the culture containers.
After the installation is completed, freshwater shrimps are bred. And then, starting the impeller pump, mixing water and air by the impeller pump to obtain a water-air mixture, discharging bubbles in the water-air mixture in the process of pumping the water-air mixture out of the impeller pump, pumping water rich in dissolved oxygen into the hollow piece 3 through the water pipe net, and allowing the water rich in dissolved oxygen to enter the culture room through the through holes 6 to provide a sufficient oxygen source for freshwater shrimps in the culture room.
Compared with the prior art, the invention obtains the water rich in dissolved oxygen by adopting the impeller pump, and pumps the water rich in dissolved oxygen into the culture room through the water pipe network, so that the water near the culture room can be ensured to be the water rich in dissolved oxygen, and the growth of freshwater shrimps is facilitated. In addition, the water rich in dissolved oxygen enters the culture room through the through holes 6, so that a large flow rate can not be generated, the impeller pump is also arranged at a place far away from the culture container, and the generated noise can not influence the growth of freshwater shrimps. In addition, the water which is pumped into the cultivation room and is rich in dissolved oxygen has no bubbles, has excellent oxygenation effect, and can meet the oxygen demand of freshwater shrimps.
As shown in fig. 2, as a preferred embodiment of the present invention, the culture chamber is composed of a plurality of culture lattices 2 which are radially arranged with the center of the culture chamber as a radial center and the radial direction of the hollow member 3 as a radial direction; the culture lattice 2 is communicated with the hollow piece 3 through a through hole 6.
Specifically, this embodiment has separated into a plurality of breed check 2 with the breeding chamber, has increased the inside surface area of breed container, can make more freshwater shrimps adhere to in the breed container, has improved cultivation efficiency.
As shown in fig. 3, as a preferred embodiment of the present invention, one end of the hollow member 3 is provided with a sealing member; one side of the sealing element is provided with a water inlet pipe 1 communicated with the water pipe network, and the other side of the sealing element is provided with a filtering element.
Specifically, the dissolved oxygen-enriched water pumped by the impeller pump enters the hollow member 3 through the water inlet pipe 1, and the sealing member can avoid overflow of the dissolved oxygen-enriched water when entering the hollow member 3. After entering the hollow piece 3, the water rich in dissolved oxygen is filtered by the filtering piece to remove impurities therein, and then enters the culture grid 2 through the through holes 6, so that the through holes 6 are prevented from being blocked by the impurities and the growth of freshwater shrimps is prevented from being influenced.
As shown in fig. 3, as a preferred embodiment of the present invention, the filter element is a cylindrical mesh enclosure 7.
Specifically, the filter may be a square cylindrical mesh enclosure 7, a triangular prism mesh enclosure, a hexagonal prism mesh enclosure, or the like, depending on the shape of the water inlet pipe 1. In general, the water inlet pipe 1 is cylindrical, and the filtering piece also adopts a cylindrical net cover 7.
As shown in fig. 4, as a preferred embodiment of the present invention, the impeller pump includes:
a pump housing 18;
a water inlet screen 9 arranged at one end of the pump shell 18 for filtering impurities in the water entering the pump shell 18;
a floating platform 11 connected to the pump housing 18 for floating the impeller pump on the water surface;
a rotary shaft 17 rotatably provided in the pump housing 18;
a motor 10 for driving the rotation shaft 17 to rotate;
an impeller 12 disposed on the rotation shaft 17;
a funnel 16; the large end section of the funnel 16 communicates with the pump housing 18;
an exhaust pipe 15 communicating with the funnel 16;
an exhaust small pipe 13 vertically provided on the exhaust pipe 15 and communicating with the exhaust pipe 15;
and a water outlet pipe 14 communicated with the exhaust pipe 15.
Specifically, when the impeller pump is operated, the motor 10 drives the rotating shaft 17 to rotate, the rotating shaft 17 drives the impeller 12 to rotate, so that the water and gas are mixed, the mixed water and gas mixture is pumped into the funnel tube 16 by pushing and pressing, the small end of the funnel tube 16 enters the exhaust tube 15, the exhaust tube 15 is an expanded tube with the diameter larger than that of the small end of the funnel tube 16 and the water outlet tube 14, the water and gas mixture collected by the funnel tube 16 generates larger pressure, the gas in the water and gas mixture is discharged from the small exhaust tube 13, and the water rich in dissolved oxygen flows out from the water outlet tube 14 and then enters the culture container through the water pipe network.
In the embodiment of the invention, the pressure regulating valve can be arranged on the water outlet pipe 14, and the water flow entering the culture container is regulated through the pressure regulating valve, so that the device is suitable for different growth states of freshwater shrimps.
As shown in fig. 5, as a preferred embodiment of the present invention, the impeller 12 includes:
an impeller inner ring 22 fixedly arranged on the rotating shaft 17;
an impeller outer ring 19;
a blade 20; the blade 20 is provided in a plurality of pieces; the blades 20 are radially arranged between the impeller outer ring 19 and the impeller inner ring 22 by taking the center of the impeller inner ring 22 as a radiation center and taking the radial direction of the impeller inner ring 22 as a radiation direction; an included angle exists between the cross section of the impeller inner ring 22 and the blades 20;
a fixing ring 21 for fixing the plurality of blades 20 together.
Specifically, the inclined arrangement of blades 20 facilitates mixing of water and air, which is more oxygen dissolved in water. The fixing ring 21 is provided between the impeller inner ring 22 and the impeller outer ring 19, and the plurality of blades 20 are fixed as a whole by the fixing ring 21, so that the quality of the impeller 12 is more excellent.
Example 2
It is a further object of an embodiment of the present invention to provide an aquaculture method implemented with an aquaculture apparatus according to any of embodiment 1, comprising the steps of:
s101, cleaning the culture space. Taking a pond and freshwater shrimps as an example of a culture space, firstly, arranging the pond, discharging pond water, leveling the pond, and sterilizing the bottom of the pond.
S102, planting aquatic plants in the cultivation space. After toxicity disappears, planting aquatic weed in the pond. The aquatic plants are mainly submerged plants, the submerged plants with shorter plants are planted around the culture container, the submerged plants with higher plants can be planted in other areas, and the pond water level is shallow and then deep along with the growth of the aquatic plants. After the aquatic plants survive for a period of time after the aquatic plants are planted, the aquaculture equipment can be installed.
S103, installing aquaculture equipment in the aquaculture space. The aquaculture equipment mainly comprises a water pipe network, aquaculture containers and impeller pumps, wherein the aquaculture containers are uniformly distributed in the pond according to the size of the pond, and then each aquaculture container is connected with each impeller pump through the water pipe network.
S104, stocking the aquatic products in the culture space and starting the aquaculture equipment. The small-size shrimp larvae are bred by spreading organic fertilizer in a pond after aquatic weed planting, culturing zooplankton, and breeding the small-size shrimp larvae when zooplankton appears in a large amount in water, so that the shrimp larvae are fed into the pond by taking the zooplankton as food, and then feeding shrimp feed. The large-size shrimp larvae are bred by surviving aquatic weeds for a period of time, breeding large-size shrimp seeds, and then feeding shrimp feed, and mainly throwing the shrimp feed near a breeding container. After the shrimp larvae are put in culture, starting a vane pump, regulating a pressure regulating valve on the water outlet pipe 14, regulating water flow to enable water flow near the culture container to be in a micro-flow state, attracting the shrimp larvae to gather in and around the culture container, and reducing the water flow to enable the water in the culture container to be in a micro-flow state after the shrimp larvae are used to the environment of the culture container. In the cultivation process, the phenomenon of hypoxia easily occurs at night or in overcast and rainy days, the water flow is regulated, and the shrimps near the cultivation container are absorbed and gathered in the cultivation container and around the cultivation container. The pond with common stocking density can be started only at night without starting the impeller pump in sunny days; in a pond with high-density stocking, impeller pumps are started in sunny days, and water flow is regulated up or reduced according to the density of freshwater shrimps and the number of the culture containers in unit area. The feed feeding amount and the feeding method are carried out normally until the cultured commodity shrimps come out of the pond.
Example 3
The embodiment of the invention is to use the aquaculture method in the embodiment 2 to carry out actual freshwater shrimp aquaculture, wherein the freshwater shrimps are cultivated in 3 ponds, the area of each pond is 3 mu, the cultivation time is 5-11 months, and the specific cultivation process is as follows:
s201, cleaning the pond. And (5) finishing the pond in the middle ten days of 5 months, discharging pond water, leveling the pond, and sterilizing the bottom of the pond. After the toxicity disappears, water is injected for 20 cm to prepare for planting submerged plants.
S202, planting aquatic weeds. The aquatic plants are mainly submerged plants, the shorter ku grass is planted around the culture container, the plant height is generally between 30 and 50 cm, and the higher submerged plants, such as the waterweed, can be planted in other areas, and the plant height is more than 1 meter. The pond water level is shallow and then deep along with the growth of aquatic weeds. After the aquatic plants survive for a period of time after being planted, the aquatic plant can be installed.
S203, installing aquaculture equipment in the pond. The aquaculture equipment mainly comprises a water pipe network, aquaculture containers and impeller pumps, wherein the aquaculture containers are uniformly distributed in the pond according to the size of the pond, and then each aquaculture container is connected with each impeller pump through the water pipe network.
S204, raising seedlings. After aquatic plants are planted, organic fertilizer is spread throughout the pond to cultivate zooplankton, when zooplankton appears in water in a large amount, small-sized shrimp larvae with the length of 1 cm are bred, the breeding amount is 45000 tails/mu, the shrimp larvae are fed with the zooplankton and fed with shrimp feed after 3 days, and the shrimp larvae are mainly thrown nearby a breeding container. After the shrimp larvae are bred, starting the impeller pump, regulating the pressure regulating valve on the water outlet pipe 14, regulating the water flow to make the water flow near the breeding container in a micro-flow state, attracting the shrimp larvae to gather in and around the breeding container, and reducing the water flow to make the water in the breeding container in a micro-flow state after the shrimp larvae are habituated. In the cultivation process, the phenomenon of hypoxia easily occurs at night or in overcast and rainy days, the water flow is regulated, and the shrimps near the cultivation container are absorbed and gathered in the inside and the periphery of the cultivation container. The pond with common stocking density can be started only at night without starting the impeller pump in sunny days; in a pond with high-density stocking, impeller pumps are started in sunny days, and water flow is regulated up or reduced according to the density of freshwater shrimps and the number of the culture containers in unit area. The feed feeding amount and the feeding method are carried out normally, the feed is raised to 11 months, the commercial specification is reached, and the feed is caught out of the pond. The pond with 3 mu has 129.6 kg of average mu yield, 3.2 g of average specification and 90.2 percent of survival rate, no death phenomenon occurs in the pond, the feed is saved by 11.2 percent, and the benefit is remarkable.
Example 4
The embodiment of the invention is to use the aquaculture method in the embodiment 2 to carry out actual freshwater shrimp aquaculture, wherein the freshwater shrimps are cultivated in 4 ponds, the area of each pond is 1 mu, the cultivation time is 6-11 months, and the specific cultivation process is as follows:
s301, cleaning the pond. And (6) finishing the pond in the middle ten days of 6 months, discharging pond water, leveling the pond, and sterilizing the bottom of the pond. After the toxicity disappears, water is injected for 20 cm to prepare for planting submerged plants.
S302, planting aquatic weeds. The aquatic plants are mainly submerged plants, the shorter ku grass is planted around the culture container, the plant height is generally between 30 and 50 cm, and the higher submerged plants, such as the waterweed, can be planted in other areas, and the plant height is more than 1 meter. The pond water level is shallow and then deep along with the growth of aquatic weeds. After the aquatic plants survive for a period of time after being planted, the aquatic plant can be installed.
S303, installing aquaculture equipment in the pond. The aquaculture equipment mainly comprises a water pipe network, aquaculture containers and impeller pumps, wherein the aquaculture containers are uniformly distributed in the pond according to the size of the pond, and then each aquaculture container is connected with each impeller pump through the water pipe network.
S304, raising seedlings. After aquatic plants are planted, large-size shrimp seeds are bred in late 6 months, the length of the large-size shrimp seeds is about 3 cm, the breeding density is 40000 tails/mu, and then shrimp feed is fed and mainly thrown near a breeding container. After the shrimp seeds are bred, the impeller pump is started, the pressure regulating valve on the water outlet pipe 14 is regulated, the water flow is regulated to enable the water flow near the breeding container to be in a micro-flow state, the shrimp seedlings are attracted to gather in and around the breeding container, and after the shrimp seedlings are habituated, the water flow is reduced to enable the water in the breeding container to be in a micro-flow state. In the cultivation process, the phenomenon of hypoxia easily occurs at night or in overcast and rainy days, the water flow is regulated, and the shrimps near the cultivation container are absorbed and gathered in the inside and the periphery of the cultivation container. The pond with common stocking density can be started only at night without starting the impeller pump in sunny days; in a pond with high-density stocking, impeller pumps are started in sunny days, and water flow is regulated up or reduced according to the density of freshwater shrimps and the number of the culture containers in unit area. The feed feeding amount and the feeding method are carried out normally, the feed is raised to 11 months, the commercial specification is reached, and the feed is caught out of the pond. The average acre yield of the pond with 4 mouths is 130.1 kg, the average specification is 3.5 g, the survival rate is 92.7%, no death phenomenon occurs in the pond, the feed is saved by 12.4%, and the benefit is remarkable.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. An aquaculture apparatus, said aquaculture apparatus comprising:
a water pipe network;
at least one piece of culture container; the culture container comprises a hollow member; a plurality of layers of culture chambers for living aquatic products are arranged on the outer surface of the hollow piece along the axial direction of the hollow piece; the hollow piece is communicated with the culture room through a through hole;
at least one impeller pump for mixing water and gas and exhausting the gas from the water and gas mixture to obtain water rich in dissolved oxygen; pumping the obtained water rich in dissolved oxygen into the hollow piece through the water pipe network;
the vane pump includes:
a pump housing;
the water inlet net cover is arranged at one end of the pump shell and used for filtering impurities in water entering the pump shell;
a floating platform connected with the pump shell and used for floating the impeller pump on the water surface;
the rotating shaft is rotatably arranged in the pump shell;
the motor is used for driving the rotating shaft to rotate;
the impeller is arranged on the rotating shaft;
a funnel tube; the big head section of the funnel tube is communicated with the pump shell;
the exhaust pipe is communicated with the funnel pipe;
the exhaust small pipe is vertically arranged on the exhaust pipe and is communicated with the exhaust pipe;
and the water outlet pipe is communicated with the exhaust pipe.
2. An aquaculture apparatus according to claim 1, wherein said aquaculture chamber is composed of a plurality of aquaculture cells radially arranged in radial direction with respect to the center of said aquaculture chamber; the culture lattice is communicated with the hollow piece through a through hole.
3. An aquaculture apparatus according to claim 1 or 2, wherein one end of said hollow member is provided with a sealing member; one side of the sealing element is provided with a water inlet pipe which is communicated with the water pipe network, and the other side of the sealing element is provided with a filtering element.
4. An aquaculture apparatus according to claim 3, wherein the filter member is a cylindrical mesh enclosure.
5. An aquaculture apparatus according to claim 1, wherein said impeller comprises:
the impeller inner ring is fixedly arranged on the rotating shaft;
an impeller outer ring;
a blade; the blade is provided with a plurality of blades; the blades are radially arranged between the impeller outer ring and the impeller inner ring by taking the center of the impeller inner ring as a radiation center and taking the radial direction of the impeller inner ring as a radiation direction; an included angle exists between the cross section of the impeller inner ring and the blades;
and the fixing ring is used for fixing the blades together.
6. An aquaculture method, characterized in that it is carried out with an aquaculture apparatus according to any one of claims 1-5, said aquaculture method comprising the steps of:
cleaning a culture space;
planting aquatic weeds in the culture space;
installing aquaculture equipment in the aquaculture space;
and (5) stocking the aquatic products in the culture space and starting the aquaculture equipment.
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