CN108834978A - A kind of air lift pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula - Google Patents
A kind of air lift pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula Download PDFInfo
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- CN108834978A CN108834978A CN201810916016.5A CN201810916016A CN108834978A CN 108834978 A CN108834978 A CN 108834978A CN 201810916016 A CN201810916016 A CN 201810916016A CN 108834978 A CN108834978 A CN 108834978A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 238000004140 cleaning Methods 0.000 title claims abstract description 14
- 241000371997 Eriocheir sinensis Species 0.000 claims abstract description 48
- 238000000746 purification Methods 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 230000001954 sterilising effect Effects 0.000 claims abstract description 11
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 230000000844 anti-bacterial effect Effects 0.000 claims description 6
- 241000894006 Bacteria Species 0.000 claims description 3
- 241000700605 Viruses Species 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000008213 purified water Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000007926 Craterellus fallax Nutrition 0.000 description 1
- 240000007175 Datura inoxia Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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; AVICULTURE; APICULTURE; PISCICULTURE; 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; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Biodiversity & Conservation Biology (AREA)
- Animal Husbandry (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Hydroponics (AREA)
Abstract
The crab pool for pushing away the full pool flowing of water fold-back formula the invention discloses a kind of air lift cultivates self-cleaning system, including culture of Chinese mitten crab area and water body purification area；The water body purification area includes filtering ponds, sterilization pool and cooling tank, and the outlet end of the cooling tank and culture of Chinese mitten crab area intersection are provided with divider wall；Air-lift device is equipped at the divider wall, air-lift device includes compressor, air inlet pipe and outlet pipe, and air-lift device after the water mixing air handled through water body purification area for will be delivered in culture of Chinese mitten crab area.Culture of Chinese mitten crab area is discharged into water body purification area with water by the present invention, by filtering, is sterilized, and after the multi-layer purified treatment of cooling, then by purified water air-lift device push-in culture of Chinese mitten crab area, is realized recycling for water, is reduced the waste of water resource.
Description
Technical field
The present invention relates to culture of Chinese mitten crab fields, specifically, being related specifically to a kind of air lift pushes away the full pool flowing of water fold-back formula
The crab pool cultivate self-cleaning system.
Background technique
River crab is the most important fresh water crab of China, fine and tender taste, delicious flavour, vegetal pole horn of plenty, with very high
Economic value, river crab pond culture is one of major way of crabs production.Currently, river crab cultivation pond cultivation is mainly with quiet
The pond pool is planted water plant and is carried out culture of Chinese mitten crab (planting careless crab farming), this kind of mode, which passes through kind of grass and refresh the water periodically, ensures dwelling for river crab
Breath, growing environment, achieve certain success, but there is also some significant problems：(1) it changes during water, waste water was discharged to week
Side water body pollutes, and water resource utilization efficiency is low.(2) water purification cultivation is so that the dissolved oxygen situation of pond waters is undesirable, especially
Its night oxygen content of water is told somebody what one's real intentions are.(3) it is the culture of Chinese mitten crab busy season in summer, is the critical stage of river crab growth, but summer high temperature
So that cultivating pool water temperature is high, river crab growth even existence is on the hazard.(4) cultivation of pond hydrostatic and river crab are in nature
There were significant differences for survival condition under living environment, hinders the further promotion of culture of Chinese mitten crab quality, need realize that flowing water is supported
Crab.
Summary of the invention
It is an object of the invention to aiming at the shortcomings in the prior art, provide a kind of air lift to push away the full pool flowing of water fold-back formula
Crab pool cultivation self-cleaning system realizes recycling for water resource, the self-purification of water and flowing water culture river in the case where not changing water
Crab.In addition, pointedly solving the problems, such as that still-water pond cultivating river crab exists, such as cause because pond waters dissolved oxygen is out of condition
The problem of river crab slow growth and summer water temperature height cause river crab growing environment to be deteriorated.
Technical problem solved by the invention can be realized using following technical scheme：
A kind of air lift pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula, including pond, the pond have river
Crab culture zone and water body purification area；
Drain bar is equipped between the culture of Chinese mitten crab area and water body purification area, the water body in culture of Chinese mitten crab area is via draining
Plate flow to water body purification area；
The water body purification area includes the filtering ponds being connected to culture of Chinese mitten crab area, filtering ponds for removing by culture of Chinese mitten crab area
The impurity in the water body come is flowed through, the outlet of filtering ponds is connected to sterilization pool, and bactericidal lamp is equipped in sterilization pool, and bactericidal lamp is used for
To in water body virus and bacterium inactivate, the outlet of sterilization pool is connected to cooling tank, the cooling tank top cover
There is shading net, shading net is supported for avoiding sunlight from irradiating to reduce the temperature of water body in the outlet end of the cooling tank and river crab
It grows area's intersection and is provided with divider wall；
Air-lift device is equipped at the divider wall, air-lift device includes compressor, air inlet pipe and outlet pipe, the compressor
It is mounted on divider wall, the compressed gas gas outlet of compressor is communicated with air inlet pipe, and air inlet pipe extends to cooling tank outlet end
Bottom, and be connected to outlet pipe, the bore of the outlet pipe is greater than the bore of air inlet pipe, and one end of outlet pipe and air inlet pipe connect
Logical, the other end of outlet pipe extends to culture of Chinese mitten crab area, and air-lift device will be for will be empty through water mixing that water body purification area is handled
It is delivered to after gas in culture of Chinese mitten crab area.
Further, several soft enclosures are equipped in the culture of Chinese mitten crab area, culture of Chinese mitten crab is partitioned by the soft enclosure
The water channel of fold-back formula, the starting point of water channel close on the cooling tank in water body purification area, and the terminal of water channel closes on the filtering in water body purification area
Pond.
Further, it is equipped with the several groups discharge outlet that is distributed up and down on the drain bar, a length of the 40 to 50 of discharge outlet
Centimetre, width is 30 to 40 centimetres, and sliding slot is offered on the inner wall of discharge outlet, is equipped in sliding slot for switching beating for discharge outlet
The moving stop of opening/closing.
Further, it being equipped with anti-return plate in the other end of the outlet pipe, the side of anti-return plate is culture of Chinese mitten crab area,
The other side of anti-return plate is water body purification area, is additionally provided with deflector in the other side of anti-return plate.
Further, the depth in the outlet end of the cooling tank and culture of Chinese mitten crab area has 80 to 120 centimetres of drop.
Further, kind being implanted with water plant in the water body of filtering ponds and cultivate has aquatic animal.
Compared with prior art, the beneficial effects of the present invention are：
Water body in culture of Chinese mitten crab area is imported into water body purification area, passes through filtering, sterilization, the multi-layer purified treatment of cooling
Afterwards, then by purified water air-lift device it is pushed into aquaculture pond, realizes recycling for water, reduces the waste of water resource.
Aquaculture pond and clarifier-tank have the design of vertical drop, the water of clarifier-tank deep layer can be pushed into aquaculture pond, both maintain to cultivate
The temperature of water body, while increasing the dissolved oxygen amount in water.
Detailed description of the invention
Fig. 1 is the signal for the crab pool cultivation self-cleaning system that a kind of air lift of the present invention pushes away the full pool flowing of water fold-back formula
Figure.
Fig. 2 is the schematic diagram of air-lift device of the present invention.
Fig. 3 is the schematic diagram of drain bar of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Referring to Fig. 1 to Fig. 3, a kind of air lift of the present invention pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula
System, including pond (1), the pond (1) have culture of Chinese mitten crab area (2) and water body purification area (3)；
Drain bar (18) are equipped between the culture of Chinese mitten crab area (2) and water body purification area (3), in culture of Chinese mitten crab area (2)
Water body flow to water body purification area (3) via drain bar (18)；
The water body purification area (3) includes the filtering ponds (11) being connected to culture of Chinese mitten crab area (2), filtering ponds (11) for going
Except by culture of Chinese mitten crab area (2) flow through Lai water body in impurity, the outlet of filtering ponds (11) is connected to sterilization pool (12), is sterilizing
Bactericidal lamp (14) are equipped in pond (12), bactericidal lamp (14) be used for in water body virus and bacterium inactivate, sterilization pool (12)
Outlet be connected to cooling tank (13), be covered at the top of the cooling tank (13) shading net (15), shading net (15) is used for
It avoids sunlight from irradiating to reduce the temperature of water body, is set in the outlet end of the cooling tank (13) and culture of Chinese mitten crab area (2) intersection
It is equipped with divider wall (4)；
Air-lift device (5) are equipped at the divider wall (4), air-lift device (5) includes compressor (9), air inlet pipe (8) and goes out
Water pipe (10), the compressor (9) are mounted on divider wall (4), and the compressed gas gas outlet of compressor (9) is communicated with air inlet pipe
(8), air inlet pipe (8) extends to the bottom of cooling tank (13) outlet end, and is connected to outlet pipe (10), the outlet pipe (10)
Bore is greater than the bore of air inlet pipe (8), and one end of outlet pipe (10) is connected to air inlet pipe (8), and the other end of outlet pipe (10) prolongs
It extends to culture of Chinese mitten crab area (2), air-lift device (5) after the water mixing air handled through water body purification area (3) for will be delivered to
In culture of Chinese mitten crab area (2).
Water body in culture of Chinese mitten crab area (2) is sterilized by filtering, after the multi-layer purified treatment of cooling, then will be after purification
Water be pushed into again with air-lift device culture of Chinese mitten crab area (2), compressor (9) work when, gas is compressed, and air inlet pipe (8) are passed through
Bottom after, it is aqueous vapor in pipe, because of aqueous vapor solution that bubble, which is full of entire outlet pipe (10) since buoyancy can rise,
Density be less than water, in outlet pipe (10), the water of cooling tank (13) bottom can enter outlet pipe (10), and constantly be elevated
Until being pushed into culture of Chinese mitten crab area (2).
In addition, be equipped with several soft enclosures (17) in the culture of Chinese mitten crab area (2), the soft enclosure (17) is by culture of Chinese mitten crab
Area (2) is divided into the water channel of fold-back formula, and the starting point of water channel closes on the cooling tank (13) of water body purification area (3), and the terminal of water channel closes on
The filtering ponds (11) in water body purification area (3).
It should be pointed out that being equipped with the several groups discharge outlet (16) being distributed up and down on the drain bar (18), draining
Sliding slot is offered on the inner wall of mouth (16), a length of 40 to 50 centimetres of discharge outlet (16), width is 30 to 40 centimetres, is equipped in sliding slot
For switching the moving stop (19) of discharge outlet (16) opened/closed.It is designed by using this kind of structure, it can be according to different
The demand of period opens the discharge outlet (16) of top or lower part.
Anti-return plate (7) are equipped in the other end of the outlet pipe (10), the side of anti-return plate (7) is culture of Chinese mitten crab area
(2), the other side of anti-return plate (7) is water body purification area (3), is additionally provided with deflector (6) in the other side of anti-return plate (7).
The outlet end of the cooling tank (13) and the depth of culture of Chinese mitten crab area (2) have 80 to 120 centimetres of drop.This kind
The water of water body purification area (3) deep layer can be imported culture of Chinese mitten crab area (2) by structure, both maintain the temperature of culture of Chinese mitten crab area (2) water body
Degree, also increases the dissolved oxygen amount in water.
In addition, interior kind of the water body of the filtering ponds (11) is implanted with water plant and cultivates and have aquatic animal.Water plant
Suspended matter in water can be absorbed, purify water.Aquatic animal can be food with excreta of river crab etc., reduce pollution, realize
Ecologic breeding.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. the crab pool cultivation self-cleaning system that a kind of air lift pushes away the full pool flowing of water fold-back formula, it is characterised in that：Including pond (1), institute
Pond (1) is stated with culture of Chinese mitten crab area (2) and water body purification area (3)；
Drain bar (18) are equipped between the culture of Chinese mitten crab area (2) and water body purification area (3), the water in culture of Chinese mitten crab area (2)
Body flow to water body purification area (3) via drain bar (18)；
The water body purification area (3) include the filtering ponds (11) being connected to culture of Chinese mitten crab area (2), filtering ponds (11) for remove by
The impurity in the water body come is flowed through in culture of Chinese mitten crab area (2), and the outlet of filtering ponds (11) is connected to sterilization pool (12), in sterilization pool
(12) in be equipped with bactericidal lamp (14), bactericidal lamp (14) be used for in water body virus and bacterium inactivate, sterilization pool (12)
Outlet is connected to cooling tank (13), is covered at the top of the cooling tank (13) shading net (15), and shading net (15) is for keeping away
Exempt from sunlight irradiation to reduce the temperature of water body, is arranged in the outlet end of the cooling tank (13) and culture of Chinese mitten crab area (2) intersection
There are divider wall (4)；
Air-lift device (5) are equipped at the divider wall (4), air-lift device (5) includes compressor (9), air inlet pipe (8) and outlet pipe
(10), the compressor (9) is mounted on divider wall (4), and the compressed gas gas outlet of compressor (9) is communicated with air inlet pipe (8),
Air inlet pipe (8) extends to the bottom of cooling tank (13) outlet end, and is connected to outlet pipe (10), the bore of the outlet pipe (10)
Greater than the bore of air inlet pipe (8), one end of outlet pipe (10) is connected to air inlet pipe (8), and the other end of outlet pipe (10) extends to
Culture of Chinese mitten crab area (2), air-lift device (5) is for will be delivered to river crab after the water mixing air handled through water body purification area (3)
In culture zone (2).
2. a kind of air lift according to claim 1 pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula, feature
It is：Be equipped with several soft enclosures (17) in the culture of Chinese mitten crab area (2), the soft enclosure (17) by culture of Chinese mitten crab area (2) every
At the water channel of fold-back formula, the starting point of water channel closes on the cooling tank (13) of water body purification area (3), and the terminal of water channel closes on water body purification
The filtering ponds (11) in area (3).
3. a kind of air lift according to claim 1 pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula, feature
It is：It is equipped with the several groups discharge outlet (16) that is distributed up and down on the drain bar (18), a length of 40 to 50 centimetres of discharge outlet,
Width is 30 to 40 centimetres, and sliding slot is offered on the inner wall of discharge outlet (16), is equipped in sliding slot for switching discharge outlet (16)
The moving stop (19) opened/closed.
4. a kind of air lift according to claim 1 pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula, feature
It is：Anti-return plate (7) are equipped in the other end of the outlet pipe (10), the side of anti-return plate (7) is culture of Chinese mitten crab area
(2), the other side of anti-return plate (7) is water body purification area (3), is additionally provided with deflector (6) in the other side of anti-return plate (7).
5. a kind of air lift according to claim 1 pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula, feature
It is：The outlet end of the cooling tank (13) and the depth of culture of Chinese mitten crab area (2) have 80 to 120 centimetres of drop.
6. a kind of air lift according to claim 1 pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula, feature
It is：Interior kind of the water body of the filtering ponds (11) is implanted with water plant, and cultivation has aquatic dynamic in the water body of the filtering ponds (11)
Object.
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| CN201810916016.5A CN108834978A (en) | 2018-08-13 | 2018-08-13 | A kind of air lift pushes away the crab pool cultivation self-cleaning system of the full pool flowing of water fold-back formula |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109792966A (en) * | 2018-12-26 | 2019-05-24 | 浙江省淡水水产研究所 | A kind of novel pond inner recirculation flow Ecology Animal Raising Zone |
| CN111279991A (en) * | 2018-12-06 | 2020-06-16 | 国投生物科技投资有限公司 | Ecological circulating aquaculture system using algae |
| CN111802298A (en) * | 2020-08-14 | 2020-10-23 | 浦育 | High-yield high-efficiency high-quality water-saving land-saving environment-friendly river crab culture system |
| CN112790141A (en) * | 2021-01-11 | 2021-05-14 | 重庆文理学院 | Indoor breeding equipment for carps without specific pathogens |
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