CN104604784A - Circulating aquaculture system for eel fertilized egg hatching and fry culture and use method thereof - Google Patents
Circulating aquaculture system for eel fertilized egg hatching and fry culture and use method thereof Download PDFInfo
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- CN104604784A CN104604784A CN201510044153.0A CN201510044153A CN104604784A CN 104604784 A CN104604784 A CN 104604784A CN 201510044153 A CN201510044153 A CN 201510044153A CN 104604784 A CN104604784 A CN 104604784A
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- 108010000912 Egg Proteins Proteins 0.000 claims description 7
- 210000004681 ovum Anatomy 0.000 claims description 7
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- 238000007664 blowing Methods 0.000 claims description 5
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- 230000001954 sterilising effect Effects 0.000 claims description 4
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Classifications
-
- 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
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
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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
- 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
-
- 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
- A01K63/047—Liquid pumps 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention provides a circulating aquaculture system for eel fertilized egg hatching and fry culture. The system comprises circulating water treatment facilities and at least one incubator, wherein the circulating water treatment facilities comprise a water storage pond, a main water inlet pipe, a main water outlet pipe and a filtering pond, a first water pump is arranged in the water storage pond, a second water pump is arranged in the filtering pond, the incubator comprises a machine body, a water inlet mechanism, a pollutant discharge mechanism, a water injection mechanism and a water drainage mechanism, the water inlet mechanism, the pollutant discharge mechanism, the water injection mechanism and the water drainage mechanism are arranged on the machine body, the water inlet mechanism and the water injection mechanism are communicated with the main water inlet pipe through pipelines, the water drainage mechanism is communicated with the main water outlet pipe through a pipeline, and the lower portion of the pollutant discharge mechanism is connected with a pollutant discharge groove. The invention further provides a use method of the circulating aquaculture system for eel fertilized egg hatching and fry culture. The circulating aquaculture system for eel fertilized egg hatching and fry culture and the use method of the system are easy and efficient, large-scale hatching can be achieved in small space, and hatching efficiency is high.
Description
Technical field
The invention belongs to technical field of aquaculture, relate to a kind of hatching cultivating system and using method thereof, be specifically related to circulating water culture system and the using method thereof of a kind of common eel incubating oosperm and larvae cultivation.
Background technology
Common eel is the important economic fish of China.Due to the particularity of the common eel history of life, its artificial propagation becomes world-famous puzzle, propagates required seed artificially and fishes for supply by natural always.But in recent years, the resource continuous shortage of eel seedling, holds at high price, and is difficult to the needs meeting aquaculture, urgently carries out the whole artificial propagation of common eel.2010, Japanese aquatic products comprehensive rearch centre (JFAR) declared the success of Japanese eel whole artificial propagation.This center, by carrying out induced breeding to the close eel of artificial culture, obtains a small amount of common eel second filial, completes the artificial breeding problem of common eel in the world first in laboratory.
But, on a large scale to common eel incubating oosperm and larvae cultivation, need circulating water culture system.As everyone knows, circulating water culture system is totally-enclosed at breeding water body or under semi-enclosed condition, nursery is produced to the water quality of whole process, current, water temperature, bait throwing in, collection is dirty, blowdown, the links such as circulating water treatment are carried out semi-automatic or are automatically managed, enable seed under suitable cultivation density condition, all the time best physiology and ecotope is maintained, thus make breeding of seed keep stable incubation rate and survival rate, ensure that the quality of seed is healthy, and break through the regionality that seed breeding is produced, the difficult problems such as the difficulty to control of seasonality and production process, realize the energy-efficient of Seedling production.And the technology of current Japanese side, shortcoming is there is in collection dirt, blowdown and circulating water treatment, after prelarva ingests, bait residue still exists in water body, though have updated a part of water yield through drainpipe, but thorough not, and bait is corrupt in cultivation flume, cause water quality deterioration, cause larval survival rate low; Meanwhile, if frequent transfer eel seedling is to fresh water, engineering is heavy, and has larger damage to prelarva, and prelarva abnormal rate is high.
In addition, the domestic relevant report less than the cultivating system about common eel incubating oosperm and larvae cultivation, therefore, is necessary to design a kind of Novel cultivation system, effectively hatches common eel fertilized egg and newly hatched larvae and cultivate.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide circulating water culture system and the using method thereof of a kind of common eel incubating oosperm and larvae cultivation, by the circulating water culture system designing the hatching of a kind of common eel and cultivate, effectively can control incubation condition, and extensive hatching can be realized in less space, realize efficiently hatching; Meanwhile, reduce prelarva damage, keep higher larval survival rate.
For achieving the above object and other relevant objects, the invention provides the circulating water culture system of a kind of common eel incubating oosperm and larvae cultivation, include circulating water treatment facility and at least one incubator, described circulating water treatment facility includes cistern, water inlet manifold, total outlet pipe, filtering ponds; Be provided with the first water pump in described cistern, described first water pump is connected with water inlet manifold through pipeline; Described filtering ponds are connected with total outlet pipe through pipeline, are provided with the second water pump in described filtering ponds, and described second water pump is connected with described cistern through pipeline; Described incubator comprises body and is located at water intake mechanism, pollution discharge mechanism, water injecting mechanism, the drainage mechanism on body, described water intake mechanism is connected with water inlet manifold through pipeline with water injecting mechanism, described drainage mechanism is connected with total outlet pipe through pipeline, is connected with dirt discharge groove under described pollution discharge mechanism.
Preferably, air pump, sterilization and disinfection device and thermoregulator is also provided with in described cistern.
More preferably, described air pump is the super-silent oxygenation low-noise air pump of day raw LP-20 type.To seawater blowing aeration, provide a good environment can to the hatching of ovum.
More preferably, described sterilization and disinfection device is the uviol lamp directly in cistern.Described uviol lamp adopts disinfection by ultraviolet light to be used for killing pathogenic bacteria and can not polluted water.
Most preferably, the fluorescent tube model of described uviol lamp is ZW40D15 (W)-Z851, and ballast model is BS-ZSZ401E.
Most preferably, one deck waterproof outer cover is surrounded by outside described uviol lamp.Can prevent from being corroded.
More preferably, the temperature control amplitude of described thermoregulator is 17-35 DEG C.Most preferably, the temperature that described thermoregulator is arranged is 22-23 DEG C.Described thermoregulator, for regulating circulating water temperature, makes fish-egg hatch under optimum temperature.
Preferably, the top of described cistern hides and has solar protection devices.Because ultra violet lamp has certain harm to human body, simultaneously in order to ensure the clean of seawater.
More preferably, described solar protection devices is selected from any one in four layers of sunshade net, folding sunshading board.
Preferably, described first water pump is day raw SP-9000 type water pump.
Preferably, described first water pump is provided with three-way pipe, first mouth of pipe of described three-way pipe is connected with described first water pump through pipeline, and second mouth of pipe of described three-way pipe is connected with water inlet manifold through pipeline, the 3rd mouth of pipe of described three-way pipe through pipeline tapping in cistern.Described three-way pipe not only can control the water flow entering water inlet manifold, makes water body flow into water inlet manifold, for incubator provides new water with comparatively low discharge; And water body can be made to pass back in cistern by the 3rd mouth of pipe of three-way pipe, play the effect of stirring and evenly mixing retaining pool inner water, and supplement the water in cistern.
More preferably, described three-way pipe is provided with valve.Described valve regulated controls the water flow entering water inlet manifold.
Preferably, filter and liquid-level controller is also provided with in described filtering ponds.
More preferably, described filter comprises the filtration sandbag, screen pack and the filter cotton that stack successively from down to up.
Most preferably, in described filtration sandbag, filtrate is selected from any one in stone, active carbon.
This filter described can remove the bulky grain refuse in cycle water, and remove the harmful substance such as part ammonia nitrogen and cultured water, features simple structure, Impurity removal is effective simultaneously.
Most preferably, described filtration sandbag, screen pack and filter cotton are changing for washing formula.Be convenient to cleaning and change.
More preferably, float valve is provided with in described liquid-level controller.
Preferably, described second water pump is day raw SP-7800 type water pump.
More preferably, described second water pump is connected with described liquid-level controller, and described second water pump is by the float valve automatic control switch in liquid-level controller.
Described second water pump by the principle of float valve automatic control switch in liquid-level controller is: described liquid-level controller is connected by electric wire with described second water pump, the current of discharging when incubator are after total outlet pipe flows to and reach a certain height in filtering ponds, the float valve established in liquid-level controller can increase, thus cause power supply to be connected, second water pump is started working, and is drawn in cistern by the water in filtering ponds; When the underwater in filtering ponds drops to certain position, the float valve established in liquid-level controller drops to certain position thereupon, thus causes power supply to disconnect, and the second water pump quits work.
Preferably, the material of described body is polymethacrylic acid methyl ester.
Preferably, the top of described body is the column part of top end opening.
Preferably, the bottom of described body be circular cross section diameter by upper large to lower little, and outer wall is the underpart of the level and smooth gradient.
More preferably, described column part and underpart connect as one or pass through Flange joint.
More preferably, the outer wall of described column part is transparent.
More preferably, the outer wall of described underpart is opaque.The outer wall of described underpart scribbles the black pigment of lucifuge.
Preferably, the below of described body is also provided with support.
More preferably, described support is in the table-like with four legs.
More preferably, the mating shapes of described support and body.
The mating shapes of described support and body refers to, the hollow space of described support is identical with area with the shape of the column part of described body, described underpart can insert the hollow space of described support, namely described body can be fixed on the bracket, described support is fixed on ground or table top by four legs, and then effectively supports described body.
Preferably, the bottom of the described body of described incubator is provided with limbers, and described limbers first ladder pipe is connected with water intake mechanism and pollution discharge mechanism; The top of described body is provided with at least one drainage mechanism, and described drainage mechanism comprises horizontally disposed drainpipe and the second ladder pipe, and described drainpipe extends in body, and described second ladder pipe is communicated with one end of drainpipe and Open Side Down; The bottom of described body is provided with two water injecting mechanism, and described water injecting mechanism comprises horizontally disposed water injection pipe, and described water injection pipe extends in body; Described water injection pipe and described drainpipe are in the horizontal direction in cross-distribution.
More preferably, described water intake mechanism comprises horizontally disposed water inlet pipe, and one end of described water inlet pipe is communicated with the first ladder pipe.
More preferably, described pollution discharge mechanism comprises vertically disposed blow-off pipe, and one end of described blow-off pipe is communicated with the first ladder pipe.
Described first ladder pipe is that threeway is connected with described water inlet pipe, blow-off pipe, can effectively intake on the one hand; On the other hand, when blowdown, adopt extra heavy pipe footpath can increase contaminant removal effectiveness, caliber by slightly turn carefully can directly control of sewage disposal time flow velocity.
Most preferably, the other end of described water inlet pipe, water injection pipe is connected with water inlet manifold, and the other end of described drainpipe is connected with total outlet pipe, and the other end of described blow-off pipe is connected with dirt discharge groove.
Particularly, described water inlet pipe, water injection pipe converge after connection is a 3rd ladder pipe by threeway, are connected with water inlet manifold.Described 3rd ladder pipe is caliber secondary ladder straight tube from fine to coarse in the horizontal direction, and its extra heavy pipe footpath end is connected with water inlet manifold.
More preferably, described first ladder pipe be in vertical direction caliber by upper thick to lower thin secondary ladder straight tube.
Most preferably, the capillary inside diameter of described first ladder pipe is equal with the pipe external diameter of described water inlet pipe.
Most preferably, the capillary inside diameter of described first ladder pipe is equal with the pipe external diameter of described blow-off pipe.
More preferably, described limbers is seamless link by one end, extra heavy pipe footpath of middle adapter and described first ladder pipe.Described middle adapter is embedded in position, described limbers, and keeps level smooth with the bottom of underpart, prevents newly hatched larvae grazing from causing damage.
Most preferably, the external diameter of described middle adapter is equal with the extra heavy pipe internal diameter of described first ladder pipe.
Most preferably, the external diameter of described middle adapter is equal with the aperture of described limbers.
More preferably, described water inlet pipe is provided with water inlet control valve door.Described water inlet control valve door is in the state opened always, and control valve makes current slowly upwards have a less impulse force, keeps the flow velocity that comparatively slow, damages so that impact force proof is excessive to prelarva.Meanwhile, because lower jaw abnormality especially easily appears in the eel seedling just hatched, the impulse force on the current direction comparatively delayed by flow velocity makes eel seedling suspend in water, and avoids eel seedling downstream to cause lower jaw abnormality to body bottom.
More preferably, described blow-off pipe is provided with blowdown by-pass valve control.
More preferably, the drainpipe of described drainage mechanism is arranged on the sidewall on described column part top, and described drainage mechanism is one, or described drainage mechanism is two and the drainpipe of two drainage mechanisms distributes along the sidewall symmetry on column part top.
Most preferably, when described drainage mechanism is two, two drainpipes converge after connection is a four-step pipe by threeway, are connected with total outlet pipe.Described four-step pipe is caliber secondary ladder straight tube from fine to coarse in the horizontal direction, and its extra heavy pipe footpath end is connected with total outlet pipe.
Most preferably, described drain level is arranged on the sidewall 5 ± 0.5cm position under the column part top of described body.
More preferably, described drainpipe one end with between the second ladder pipe by by level, the elbow turned vertically downward is connected.
Most preferably, the caliber of described drainpipe is equal with the caliber of described elbow.
More preferably, described second ladder pipe be in vertical direction caliber by upper thin to lower thick secondary ladder straight tube.
Most preferably, the slim pipe diameter of described second ladder pipe is equal with the caliber of described elbow.
Most preferably, the lower ending opening in the extra heavy pipe footpath of described second ladder pipe.
Most preferably, the extra heavy pipe electrical path length of described second ladder pipe is 8 ± 0.5cm.
More preferably, the tube wall of described second ladder pipe is provided with at least one osculum.
Most preferably, the aperture of described osculum is 1 ± 0.1mm.
Most preferably, the pitch of holes of described osculum is 1 ± 0.1mm.
Most preferably, yarn thin,tough silk is surrounded by outside described osculum.
Particularly, the fineness of described yarn thin,tough silk is 100 orders.This structure can stop eel seedling together to be discharged with waste water.
More preferably, described drainpipe is provided with draining control valve door.Describedly open draining control valve door, make to reach balance into water draining by regulating, thus the moment more can renew water, for eel seedling provides a good water environment.
More preferably, the water injection pipe of described water injecting mechanism is arranged on the sidewall of described column part bottom, and the water injection pipe of described two water injecting mechanism distributes along the sidewall symmetry of column part bottom.
Most preferably, described water injection pipe be horizontally set on below described column part with underpart connection on sidewall 5 ± 0.5cm position.
Described water injection pipe and described drainpipe refer in cross-distribution in the horizontal direction, described water injection pipe and described drainpipe are positioned on the not ipsilateral of the horizontal direction of described column part, symmetrical between described water injection pipe and water injection pipe, symmetrical between described drainpipe and drainpipe, cross-distribution between described drainpipe and water injection pipe.
More preferably, described water injection pipe and described drainpipe distribute in right-angled intersection in the horizontal direction.
More preferably, one end that described water injection pipe extends in body is also provided with duck-beak type shower nozzle.
Most preferably, described duck-beak type shower nozzle is revolving.Rotatable 360 ° of described duck-beak type shower nozzle.
Particularly, described duck-beak type shower nozzle rotates to being 45 ° obliquely.The water sprayed is made to be clockwise direction.
Most preferably, between described water injection pipe with described duck-beak type shower nozzle by by level, the elbow turned vertically downward is connected.
Particularly, the caliber of described water injection pipe is equal with the caliber of described elbow.
More preferably, described water injection pipe is provided with Fill control valves door.The by-pass valve control of described water injection pipe is also in the state opened, and control valve controls water velocity, prevents downstream to the eel seedling in body base end wall from stopping for a long time because anoxia asphyxia is dead.
More preferably, also fluorescent lamp is provided with above described body.Described fluorescent lamp arranges distance according to illumination above body.
Most preferably, the illumination of described fluorescent lamp is 500-1000lx.Described lx is also called lux (Lux), is unit of illuminance, and its physical significance is the luminous flux be irradiated in unit are, i.e. lumen (Lm) number of every square metre, 1lx=1Lm/m specifically
2.
Most preferably, the outside of described fluorescent lamp is covered with black lampshade.Described fluorescent lamp is only just opened when bait throwing in.
More preferably, described incubator is also provided with the bait throwing in matched with limbers and blocks and manage.
The described bait throwing in matched with limbers blocks pipe and refers to, the caliber of described bait throwing in blocking pipe is equal with the aperture of described limbers, injects body, block limbers when bait throwing in.
Most preferably, the caliber of described bait throwing in blocking pipe is equal with the aperture of described limbers.
Most preferably, one end mouth of pipe blocking of described bait throwing in blocking pipe.
Most preferably, the length of described bait throwing in blocking pipe exceedes the height in described body.
More preferably, the pipe used in described circulating water culture system is pvc pipe.
The present invention still further provides the using method of the circulating water culture system of a kind of common eel incubating oosperm and larvae cultivation, comprises the following steps:
1) seawater is introduced in cistern, open ultraviolet lamp disinfection sterilization, open air pump to seawater blowing aeration, open thermoregulator and regulate water temperature;
Preferably, the condition of described uviol lamp is: fluorescent tube model: ZW40D15 (W)-Z851, ballast model: BS-ZSZ401E, power: 40W, fluorescent tube length: 85mm, caliber: 15mm.Described uviol lamp can concentrate very high intensity kill virus and bacterium at short notice.
Preferably, the condition of described air pump is: model: day life LP-20 type, power: 15-20w, throughput: 20-25L/H, pressure: 0.025-0.030Mpa, goes out air nozzle number: 5-8Ways, the degree of depth of fetching water: 2.0-2.5m.
More preferably, the condition of described air pump is: model: day life LP-20 type, power: 17w, throughput: 22L/H, pressure: 0.028Mpa, goes out air nozzle number: 6Ways, the degree of depth of fetching water: 2.2m.Described air pump has dual seismic sound absorption function, excellent performance, perfect heat-dissipating, and noise content is extremely low; Two air chamber gas making structure, gas output is large, and pressure at expulsion is strong, and compressed air is pure.
Preferably, the condition of described thermoregulator is: regulate temperature: 22-23 DEG C, power: 1HP, voltage: 220-240V, cooling water inflow: 300-2500L, quantity of circulating water: 1500-4000L.
More preferably, described thermoregulator is extra large sharp board HC-1000B type cooling-water machine.
2) open the first water pump in cistern again, controlled by three-way pipe, seawater is flowed into water inlet manifold with certain flow;
Preferably, the condition of described first water pump is: model: day raw SP-9000, power: 130-140w, lift: 4.0-5.0m, flow: 3500-4000L/H, Inlet and outlet water bore: 18-20mm.
More preferably, the condition of described first water pump is: model: day raw SP-9000, power: 135w, lift: 4.5m, flow: 3800L/H, Inlet and outlet water bore: 19mm.
Preferably, described three-way pipe enters the seawater flow of water inlet manifold by Valve controlling.
More preferably, the described seawater flow entering water inlet manifold through three-way pipe is 1750-2000L/H.
Most preferably, the described seawater flow entering water inlet manifold through three-way pipe is 1900L/H.
Described three-way pipe can also make water body pass back in cistern, plays the effect of stirring and evenly mixing retaining pool inner water, and supplements the water in cistern.
3) open the water inlet control valve door on incubator, Fill control valves door and draining control valve door, after seawater flows through body, flow into filtering ponds by total outlet pipe and filter;
Preferably, in filtering ponds, filter is used to filter.
More preferably, described filter comprises the filtration sandbag, screen pack and the filter cotton that stack successively from down to up.
Most preferably, described in stone is housed filtration sandbag stack bottom filtering ponds, it is placed the filtration sandbag that active carbon is housed, again it places one deck screen pack, be placed with two-layer filter cotton above described screen pack, described filter cotton thickness is 9.5-10.5mm, is preferably 10mm.
4), after filtering, by the second water pump in the opened filter tank of the float valve in liquid-level controller, seawater is flowed back in cistern again, the water circulation in keeping system;
Preferably, the condition of described second water pump is: model: day raw SP-7800, power: 70-80w, lift: 3.0-4.0m, flow: 2500-3500L/H, Inlet and outlet water bore: 20-24mm.
More preferably, the condition of described second water pump is: model: day raw SP-7800, power: 75w, lift: 3.5m, flow: 3000L/H, Inlet and outlet water bore: 22mm.
Preferably, the condition of described liquid-level controller and float valve is: model: ST-9, liquid-level controller control range: 0.2-5.0m, temperature range: 5-60 DEG C, can directly actuated water pump peak power: 1.0 horsepowers.
The principle that float valve in described liquid-level controller controls the second water pump is: described liquid-level controller is connected by electric wire with described second water pump, the current of discharging when incubator are after total outlet pipe flows to and reach a certain height in filtering ponds, the float valve established in liquid-level controller can increase, thus cause power supply to be connected, second water pump is started working, and is drawn in cistern by the water in filtering ponds; When the underwater in filtering ponds drops to certain position, the float valve established in liquid-level controller drops to certain position thereupon, thus causes power supply to disconnect, and the second water pump quits work.
5) after putting ovum into body, regulate water inlet control valve door, Fill control valves door and draining control valve door, keep the water balance in body;
Preferably, before putting ovum into body, outside the body of each incubator, mark a horizontal line with marking pen, the safety line of representation level, and ensure that water in each body is below safety line.
Described water balance refers to: by regulating water inlet control valve door, Fill control valves door and draining control valve door, make to reach balance into water draining, the moment more renews water, for eel seedling provides a good water environment; Meanwhile, eel seedling is suspended in water, both avoided eel seedling downstream to cause lower jaw abnormality to body bottom, avoid again that impulse force is excessive to be damaged eel seedling, also prevent downstream to the eel seedling in body base end wall from stopping for a long time because anoxia asphyxia is dead.
6) use bait throwing in blocking blockage limbers, open fluorescent lamp, close water inlet control valve door, Fill control valves door and draining control valve behind the door simultaneously, carry out bait throwing in feeding;
Preferably, described bait throwing in blocking blockage limbers bait throwing in is blocked after pipe runs through underpart to the first ladder pipe to block limbers.
Preferably, described bait throwing in feeding time is 14.5-15.5 minute.More preferably, described bait throwing in feeding time is 15 minutes.
Preferably, described bait throwing in feeding is that bait throwing in feeding is carried out in bottom bait being delivered to by glass pipette underpart.
7) close fluorescent lamp after bait throwing in feeding, remove bait throwing in blocking pipe, open Fill control valves door and blowdown by-pass valve control, bait residue is drained;
Preferably, described in drain bait residue be with water by duck-beak type shower nozzle by bait residue by limbers, pour the first ladder pipe, then by blow-off pipe, bait residue entered dirt discharge groove.
Preferably, bait residue every day same time of draining described in carries out once.
8) close blowdown by-pass valve control, then open water inlet control valve door and draining control valve door, again keep the water balance in body.
The invention also discloses the purposes of circulating water culture system in hatching common eel fertilized egg and cultivation common eel newly hatched larvae of a kind of common eel incubating oosperm and larvae cultivation.
As mentioned above, the circulating water culture system of a kind of common eel incubating oosperm of the present invention and larvae cultivation and using method thereof, have following beneficial effect:
(1) circulating water culture system of a kind of common eel incubating oosperm provided by the invention and larvae cultivation and using method thereof, in conjunction with the setting principle of circulating water treatment facility and common eel incubator, develop the recirculated water hatching system being suitable for the simple and efficient of common eel incubating oosperm and newly hatched larvae cultivation of a set of uniqueness, compared with existing system, its circular water treating system energy controlled circulation water condition of water quality, filtering ponds can filter out refuse in cycle water and harmful substance, chlorination equipment can kill circulation Inactivation of Enteric Viruses In Water and bacterium, heating rod can regulate the temperature of cycle water, thus fish-egg is hatched under the cycle water environment of the best, incubation rate is high.
(2) circulating water culture system of a kind of common eel incubating oosperm provided by the invention and larvae cultivation and using method thereof, be designed with unique incubator structure, by arranging water intake mechanism and pollution discharge mechanism, remaining bait residue and dead ovum after common eel seedling feeding can be removed in water in time, thus ensures the pure and fresh of water quality.Meanwhile, from low side water inlet, by regulating water inlet control valve door, providing the impulse force that less, keeping the flow velocity that comparatively slow, so that impact force proof is excessive, eel seedling being damaged.Meanwhile, because lower jaw abnormality especially easily appears in the eel seedling just hatched, the impulse force on the current direction comparatively delayed by flow velocity makes eel seedling suspend in water, and avoids eel seedling downstream to cause lower jaw abnormality to body bottom.
(3) circulating water culture system of a kind of common eel incubating oosperm provided by the invention and larvae cultivation and using method thereof, be designed with unique incubator structure, by arranging water injecting mechanism and drainage mechanism, control valve controls water velocity, prevents downstream to the eel seedling in body base end wall from stopping for a long time because anoxia asphyxia is dead.Meanwhile, the moment more can renew water, for eel seedling provides a good water environment.And black dyes is scribbled on the outer wall of underpart, simulation marine bottom environment, is conducive to eel larva and ingests.
(4) circulating water culture system of a kind of common eel incubating oosperm provided by the invention and larvae cultivation and using method thereof, by multiple incubator placed side by side, thus realize in less space, realize extensive hatching, hatching efficiency is high.Further, controlled the duty of the second water pump by the float valve established in liquid-level controller, automatically can keep the water circulation in cultivating system.
Accompanying drawing explanation
Fig. 1 is shown as the overall flow schematic diagram of the circulating water culture system of a kind of common eel incubating oosperm of the present invention and larvae cultivation
Fig. 2 is shown as the isometric views of a kind of Double water drainage tube incubator of the present invention
Fig. 3 is shown as the front and back end view of a kind of Double water drainage tube incubator of the present invention
Fig. 4 is shown as the left and right sides view of a kind of Double water drainage tube incubator of the present invention
Fig. 5 is shown as the vertical view of a kind of Double water drainage tube incubator of the present invention
Fig. 6 is shown as the isometric views of a kind of single water pipe incubator of the present invention
Fig. 7 is shown as the front and back end view of a kind of single water pipe incubator of the present invention
Fig. 8 is shown as the left and right sides view of a kind of single water pipe incubator of the present invention
Fig. 9 is shown as the vertical view of a kind of single water pipe incubator of the present invention
Figure 10 is shown as the structural representation of bait throwing in blocking pipe in the present invention
Reference numeral
1 body
11 column parts
12 underparts
13 limberss
2 water intake mechanisms
21 water inlet pipes
22 first ladder pipes
23 water inlet control valve doors
3 pollution discharge mechanisms
31 blow-off pipes
32 blowdown by-pass valve controls
4 water injecting mechanism
41 water injection pipes
42 Fill control valves doors
43 duck-beak type shower nozzles
5 drainage mechanisms
51 second ladder pipes
52 drainpipes
53 draining control valve doors
54 osculums
6 bait throwing in blocking pipes
7 supports
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Figure 10.Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As Figure 1-10 shows, the invention provides the circulating water culture system of a kind of common eel incubating oosperm and larvae cultivation, include circulating water treatment facility and at least one incubator, described circulating water treatment facility includes cistern, water inlet manifold, total outlet pipe, filtering ponds; Be provided with the first water pump in described cistern, described first water pump is connected with water inlet manifold through pipeline; Described filtering ponds are connected with total outlet pipe through pipeline, are provided with the second water pump in described filtering ponds, and described second water pump is connected with described cistern through pipeline; Described incubator comprises body and is located at water intake mechanism, pollution discharge mechanism, water injecting mechanism, the drainage mechanism on body, described water intake mechanism is connected with water inlet manifold through pipeline with water injecting mechanism, described drainage mechanism is connected with total outlet pipe through pipeline, is connected with dirt discharge groove under described pollution discharge mechanism.
Air pump, sterilization and disinfection device and thermoregulator is also provided with in described cistern.Described air pump is the super-silent oxygenation low-noise air pump of day raw LP-20 type.Described sterilization and disinfection device is the uviol lamp directly in cistern.One deck waterproof outer cover is surrounded by outside described uviol lamp.The temperature control amplitude of described thermoregulator is 17-35 DEG C.The top of described cistern hides solar protection devices, described solar protection devices be selected from four layers of sunshade net, folding sunshading board any one.
As shown in Figure 1, described first water pump is day raw SP-9000 type water pump.Described first water pump is provided with three-way pipe, and first mouth of pipe of described three-way pipe is connected with described first water pump through pipeline, and second mouth of pipe of described three-way pipe is connected with water inlet manifold through pipeline, the 3rd mouth of pipe of described three-way pipe through pipeline tapping in cistern.Described three-way pipe is provided with valve
Filter and liquid-level controller is also provided with in described filtering ponds.Described filter comprises the filtration sandbag, screen pack and the filter cotton that stack successively from down to up.In described filtration sandbag, filtrate is selected from any one in stone, active carbon.Described filtration sandbag, screen pack and filter cotton are changing for washing formula.Float valve is provided with in described liquid-level controller.As shown in Figure 1, described second water pump is day raw SP-7800 type water pump.Described second water pump is connected with described liquid-level controller, and described second water pump is by the float valve automatic control switch in liquid-level controller.
The material of described body 1 is polymethacrylic acid methyl ester.The outer wall of described column part 11 is transparent, and observable common eel incubating oosperm and newly hatched larvae cultivate situation.The outer wall of described underpart 12 is opaque, the outer wall of described underpart 12 scribbles the black pigment of lucifuge, and when bait throwing in feeding, eel seedling bears phototaxis, is gathered in underpart 12, is convenient to collect, remove bait residue.
As shown in Figure 2,6, be also provided with support 7 below described body 1, described support 7 is in the table-like with four legs.The mating shapes of described support 7 and body 1, the hollow space of described support 7 is identical with area with the shape of the column part 11 of described body 1, the underpart 12 of described body 1 can insert the hollow space of described support 7, namely described body 1 can be fixed on described support 7, described support 7 is fixed on ground or table top by four legs, and then effectively supports described body 1.
As shown in figs. 2-10, the bottom of the described body 1 of described incubator is provided with limbers 13, and described limbers 13 is connected with water intake mechanism 2 and pollution discharge mechanism 3 through the first ladder pipe 22; The top of described body 1 is provided with at least one drainage mechanism 5, described drainage mechanism 5 comprises horizontally disposed drainpipe 52 and the second ladder pipe 51, described drainpipe 52 extends in body 1, and described second ladder pipe 51 is communicated with one end of drainpipe 52 and Open Side Down; The bottom of described body 1 is provided with two water injecting mechanism 4, and described water injecting mechanism 4 comprises horizontally disposed water injection pipe 41, and described water injection pipe 41 extends in body 1; Described water injection pipe 41 and described drainpipe 52 are in the horizontal direction in cross-distribution.
As shown in Fig. 3,4,7,8, described first ladder pipe 22 be in vertical direction caliber by upper thick to lower thin secondary ladder straight tube; Described water intake mechanism 2 comprises horizontally disposed water inlet pipe 21, and one end of described water inlet pipe 21 is communicated with the first ladder pipe 22; Described pollution discharge mechanism 3 comprises vertically disposed blow-off pipe 31, and one end of described blow-off pipe 31 is communicated with the first ladder pipe 22.
The other end of described water inlet pipe 21, water injection pipe 41 is connected with water inlet manifold, and the other end of described drainpipe 52 is connected with total outlet pipe, and described blow-off pipe 31 is connected with dirt discharge groove.Described water inlet pipe 21, water injection pipe 41 converge after connection is a 3rd ladder pipe by threeway, are connected with water inlet manifold.Described 3rd ladder pipe is caliber secondary ladder straight tube from fine to coarse in the horizontal direction, and its extra heavy pipe footpath end is connected with water inlet manifold.
Wherein, as shown in Fig. 3,7, described limbers 13 is seamless link by one end, extra heavy pipe footpath of middle adapter and described first ladder pipe 22.The external diameter of described middle adapter is equal with the extra heavy pipe internal diameter of described first ladder pipe 22.The external diameter of described middle adapter is equal with the aperture of described limbers 13.The capillary inside diameter of described first ladder pipe 22 is equal with the pipe external diameter of described water inlet pipe 21.Described water inlet pipe 21 is provided with water inlet control valve door 23.
Wherein, as shown in Fig. 4,8, the capillary inside diameter of described first ladder pipe 22 is equal with the pipe external diameter of described blow-off pipe 31.Described blow-off pipe 31 is provided with blowdown by-pass valve control 32.
Described first ladder pipe 22 is connected in threeway with described water inlet pipe 21, blow-off pipe 31, can effectively intake on the one hand; On the other hand, when blowdown, adopt extra heavy pipe footpath can increase contaminant removal effectiveness, caliber by slightly turn carefully can directly control of sewage disposal time flow velocity.Described middle adapter is embedded in position, described limbers 13, and keeps level smooth with the bottom of underpart 12, prevents newly hatched larvae grazing from causing damage.
As shown in Fig. 5,9, the drainpipe 52 of described drainage mechanism 5 is arranged on the sidewall on described column part 11 top, and as shown in Figure 5, described drainage mechanism 5 is two and the drainpipe 52 of two drainage mechanisms 5 distributes along the sidewall symmetry on column part 11 top; As shown in Figure 9, described drainage mechanism 5 is one and the drainpipe 52 of drainage mechanism 5 is horizontally set on the sidewall on described column part 11 top.As shown in Fig. 5,9, the water injection pipe 41 of described water injecting mechanism 4 is arranged on the sidewall of described column part 11 bottom, and the water injection pipe 41 of described two water injecting mechanism 4 distributes along the sidewall symmetry of column part 11 bottom.As shown in Fig. 5,9, described water injection pipe 41 distributes in right-angled intersection in the horizontal direction with described drainpipe 42.
Wherein, when described drainage mechanism 5 is two, two drainpipes 52 converge after connection is a four-step pipe by threeway, are connected with total outlet pipe.Described four-step pipe is caliber secondary ladder straight tube from fine to coarse in the horizontal direction, and its extra heavy pipe footpath end is connected with total outlet pipe.
Wherein, described drainpipe 52 is horizontally set on the sidewall 5 ± 0.5cm position under column part 11 top of described body 1.Described water injection pipe 41 be horizontally set on below described column part 11 with underpart 12 connection on sidewall 5 ± 0.5cm position.
As shown in Fig. 5,9, described second ladder pipe 51 be in vertical direction caliber by upper thin to lower thick secondary ladder straight tube.One end of described drainpipe 52 with between described second ladder pipe 51 by being turned to elbow to be straight down connected by level.The caliber of described drainpipe 52 is equal with the caliber of described elbow.The slim pipe diameter of described second ladder pipe 51 is equal with the caliber of described elbow.The lower ending opening in the extra heavy pipe footpath of described second ladder pipe 51.The extra heavy pipe electrical path length of described second ladder pipe 51 is 7.5-8.5cm.
As shown in Fig. 5,9, the tube wall of described second ladder pipe 51 is provided with at least one osculum 54.The aperture of described osculum 54 is 0.9-1.1mm.The pitch of holes of described osculum 54 is 0.9-1.1mm.Yarn thin,tough silk is surrounded by outside described osculum 54.The fineness of described yarn thin,tough silk is 100 orders.This structure can stop eel seedling together to be discharged with waste water.Described drainpipe 52 is provided with draining control valve door 53.Describedly open draining control valve door 53, make to reach balance into water draining by regulating, thus the moment more can renew water, for eel seedling provides a good water environment.
As shown in Fig. 5,9, described water injection pipe 41 extends on the one end in body 1 and is also provided with duck-beak type shower nozzle 43.Described duck-beak type shower nozzle 43 is revolving.Preferably when described duck-beak type shower nozzle 43 rotates to obliquely in 45 °, the water sprayed is made to be clockwise direction.
By being turned to elbow to be straight down connected by level between described water injection pipe 41 with described duck-beak type shower nozzle 43.The caliber of described water injection pipe 41 is equal with the caliber of described elbow.Described water injection pipe 41 is provided with Fill control valves door 42.The Fill control valves door 42 of described water injection pipe 41 is in the state opened, and control valve controls water velocity, prevents downstream to the eel seedling in body 1 base end wall from stopping for a long time because anoxia asphyxia is dead.
Also fluorescent lamp is provided with above described body 1.The illumination of described fluorescent lamp is 500-1000lx.The outside of described fluorescent lamp is covered with black lampshade.Described fluorescent lamp is only just opened when bait throwing in.
As shown in Figure 10, described incubator is also provided with the bait throwing in matched with limbers 13 and blocks pipe 6.Described bait throwing in blocking pipe 6 only injects body 1 when bait throwing in, blocks the first ladder pipe 22.The caliber of described bait throwing in blocking pipe 6 is equal with the aperture of described limbers 13.One end mouth of pipe blocking of described bait throwing in blocking pipe 6.The length of described bait throwing in blocking pipe 6 exceedes the height in described body 1.
The pipe used in described circulating water culture system is pvc pipe.
By the following examples the circulating water culture system of a kind of common eel incubating oosperm of the present invention and larvae cultivation and using method thereof are set forth.
Embodiment 1
1, apparatus structure
User obtains circulating water culture system as shown in Figure 1, and wherein, cistern is the plastic bucket of a diameter 170cm, high 100cm, the first water pump in cistern is SP-9000 type water pump, and its power is 130W, and lift is 4.5m, flow is 3800L/H, and Inlet and outlet water bore is 19mm.Air pump is the super-silent oxygenation low-noise air pump of day raw LP-20 type, and power is 17w, and throughput is 22L/H, and pressure is 0.028Mpa, and going out air nozzle number is 6Ways, and the degree of depth of fetching water is 2.2m.Sterilization and disinfection device is the uviol lamp of power 40w, and fluorescent tube model is ZW40D15 (W)-Z851, and ballast model is BS-ZSZ401E, and fluorescent tube length is 85mm, and caliber is 15mm.Thermoregulator is extra large sharp board HC-1000B type cooling-water machine, and temperature control amplitude is 17-35 DEG C, controls at 22-23 DEG C by temperature in cistern, and power is 1HP, and voltage is 220V, cooling water inflow: 300-2500L, quantity of circulating water: 1500-4000L.The second water pump in filtering ponds is SP-7800 type water pump, and its power is 75W, and lift is 3.5m, and flow is 3000L/H, and Inlet and outlet water bore is 22mm.Filter comprises the filtration sandbag, screen pack and the filter cotton that stack successively from down to up of changing for washing formula, the described filtration sandbag that stone is housed stacks bottom filtering ponds, it is placed the filtration sandbag that active carbon is housed, again it places one deck screen pack, two-layer filter cotton is placed with above described screen pack, described filter cotton thickness is 9.5-10.5mm, is preferably 10mm.Liquid-level controller is ST-9 type, is inside provided with float valve and controls the second automatic switch for water pump.Liquid-level controller control range is 0.2-5.0m, and temperature range is 5-60 DEG C, can directly actuated water pump peak power be 1.0 horsepowers.And be provided with 10 incubators.
As shown in Figure 2-5, the table shape support 7 of incubator is highly 1m.The diameter of the column part 11 of described body 1 is 430mm, is highly 300mm; Described underpart 12 is 1/3rd of the spheroid of 430mm for diameter.The aperture of the described limbers 13 of the lower end of described underpart 12 is 50mm, the the first ladder pipe 22 be attached thereto by middle adapter is the straight tube that pipe diameter 50mm turns 20mm, and the water inlet pipe 21 be connected in threeway with the first ladder pipe 22 and the caliber of blow-off pipe 31 are 20mm.Below the described column part 11 that described water injection pipe 41 is horizontally set on described body 1 with underpart 12 connection on 5cm position, sidewall symmetry both sides.The caliber of described water injection pipe 41 is 20mm, and the caliber of the elbow be attached thereto is 20mm.Described duck-beak type shower nozzle 43 rotates to being 45 ° obliquely.5cm position under the top, sidewall symmetry both sides that described drainpipe 52 is horizontally set on column part 11 top of described body 1.The caliber of described drainpipe 52 is 20mm, and the caliber of the elbow be attached thereto is 20mm.Described second ladder pipe 51 turns the straight tube of 90mm for caliber 20mm, and wherein, the caliber of described second ladder pipe 51 is the length of 90mm part is 8cm, and the lower ending opening of this part.The tube wall of described second ladder pipe 51 is provided with at least one osculum 54, and the aperture of described osculum 54 is 1mm, and the pitch of holes of described osculum 54 is 1mm.Being surrounded by fineness outside described osculum 54 is 100 object yarn thin,tough silk.
As shown in Figure 1, described water inlet pipe 21, water injection pipe 41 are that after connection the 3rd ladder pipe is converged in 20mm threeway, described 3rd ladder pipe is the straight tube that caliber 20mm turns 50mm, is connected with water inlet manifold by caliber.Two drainpipes 52 are that to converge connection be a four-step pipe in 20mm threeway by caliber, and described four-step pipe is the straight tube that caliber 20mm turns 50mm, is connected with total outlet pipe.
Also fluorescent lamp is provided with above described body 1.The outside of described fluorescent lamp is covered with black lampshade.The illumination of described fluorescent lamp is 500-1000lx.As shown in Figure 10, described incubator is also provided with the bait throwing in matched with limbers 13 and blocks pipe 6, one end mouth of pipe blocking of described bait throwing in blocking pipe 6, and the pipe diameter of described bait throwing in blocking pipe 6 is 50mm, and the length of described bait throwing in blocking pipe 6 is 500mm.
2, step is used
Seawater is introduced in cistern, open ultraviolet lamp disinfection sterilization, open air pump to seawater blowing aeration, open thermoregulator and regulate water temperature to 22-23 DEG C.Open the first water pump in cistern again, controlled by three-way pipe, seawater is flowed into water inlet manifold with 1900L/H flow.Meanwhile, three-way pipe can also make water body pass back in cistern, plays the effect of stirring and evenly mixing retaining pool inner water, and supplements the water in cistern.
Open the water inlet control valve door 23 on incubator, Fill control valves door 42, make seawater flow into body 1.Outside the body 1 of each incubator, mark a horizontal line with marking pen, the safety line of representation level, ensure that water in each body 1 is below safety line, puts body 1 into by ovum.Regulate water inlet control valve door 23, current slowly upwards have a less impulse force, keeps the flow velocity comparatively delayed on a current direction, eel seedling is suspended in water, both avoided eel seedling downstream to cause lower jaw abnormality to body bottom, avoided again that impulse force is excessive to be damaged eel seedling.Meanwhile, regulate Fill control valves door 42 to control water velocity, prevent downstream to the eel seedling in body 1 base end wall from stopping for a long time because anoxia asphyxia is dead.
Draining control valve door 53 in two drainage mechanisms 5 that the sidewall symmetry both sides of opening described column part 11 top are again provided with, makes seawater flow into total outlet pipe from body 1.Meanwhile, by regulating draining control valve door 53, make to reach balance into water draining, the moment more renews water, for eel seedling provides a good water environment.Be provided with osculum 54 and yarn thin,tough silk structure in drainage arrangement 5, eel seedling can be stoped together to discharge with seawater.
Seawater flows into filtering ponds by total outlet pipe, and after device filters after filtration, the second water pump in opened filter tank, uses the float valve in liquid-level controller, control the automatic switch of the second water pump, seawater is flowed back in cistern again, the water circulation in keeping system.
When bait throwing in, bait throwing in is blocked pipe 6 and inject described limbers 13 bottom body 1 underpart 12, limbers 13 is blocked.Then open the fluorescent lamp above body 1, first close water inlet control valve door 23, Fill control valves door 42 and draining control valve door 53.With glass pipette, bait is delivered to the bottom of described opaque underpart 12, due to the negative phototaxis of common eel, eel seedling can move to this place food.Feeding is after 15 minutes, and close fluorescent lamp, prelarva can swim in water body, now removes bait throwing in blocking pipe 6.Open Fill control valves door 42, by duck-beak type shower nozzle 43, bait residue is passed through limbers 13 with water, pour the first ladder pipe 22.Open blowdown by-pass valve control 32, by blow-off pipe 31, bait residue is entered dirt discharge groove.The described bait residue every day same time of draining carries out once.Close blowdown by-pass valve control 32 again, reopen water inlet control valve door 23, intake from bottom.Meanwhile, open draining control valve door 53, keep the water balance in body 1.
3, result of use
A kind of common eel incubating oosperm in employing the present invention and the circulating water culture system of larvae cultivation, compared with the cultivating system of raising common eel with existing routine, have following improvement.
A) water pipe that the pump outlet in the circulating water culture system in the present invention in cistern connects connects the threeway of a caliber 20mm, the object of this threeway is out a branch, the water of branch is still thrown in cistern, play the effect of stirring and evenly mixing retaining pool inner water, and the water supplemented in cistern, water pump other end delivery port connects a water pipe, and cross current to the total water inlet of incubator, thus provides new water to each incubator.Second water pump is housed in described filtering ponds, filter and liquid-level controller ST-9, water pump is communicated with by a wire with liquid-level controller ST-9, the water of discharging when incubator flows to after filtering ponds reach a certain height, the float valve of liquid-level controller can increase, thus cause power supply to be connected, second water pump is started working, water is drawn in cistern, when dropping to certain position under water in filtering ponds, the float valve of liquid-level controller drops to certain position thereupon, thus cause power supply to disconnect, second water pump quits work, so can reach the water level in autonomous controlled filter pond, prevent from overflowing, simple to operation, time saving and energy saving, high efficiency.
B) water inlet pipe of the cultivation tank of existing eel larva is mounted in the upper end of tank, water enters body from above, and the water inlet pipe in the present invention enters from bottom of gullet, impulse force on the current direction that so a flow velocity just can be provided comparatively to delay makes eel seedling suspend in water, and avoids eel seedling downstream to cause lower jaw abnormality to body bottom.
C) the cultivation tank of existing eel larva is completely transparent, and the incubator in the present invention to be column part transparent, the outer wall of underpart scribbles the pitch-dark of lucifuge.When bait throwing in, open fluorescent lamp, based on the negative phototaxis of eel seedling, can downstream, underpart coat pitch-dark after more can be conducive to eel seedling downstream and ingest to bottom.
D) the present invention adds water injecting mechanism again, wherein, below the described column part that described water injection pipe is horizontally set on described body with underpart connection on 5 ± 0.5cm position, sidewall symmetry both sides.Object is to prevent downstream to the eel seedling in body base end wall from stopping for a long time because anoxia asphyxia is dead.And the cultivation tank of existing eel larva there is no the design of water filling device.
E) because prelarva bait throwing in need carry out 5 feedings (this is won according to Japanese bridge) every day in stage, the residual bait each according to existing apparatus just can only be stayed in tank, even if having drainpipe to upgrade water also cannot drain, and eel larva is live in the clean sea water in foreign country originally, very weak to the resistance of bacterium, so its can make bacterium increasing numerous because of bait residual at bottom of gullet, and killed at once by the bacterium invaded, this is also cause one of reason that postlarva survival rate is lower.And the present invention also adds pollution discharge mechanism, the bait residue after at every turn throwing something and feeding and dead seedling can be removed in time, for eel seedling provides a good water environment.And the cultivation tank of existing eel larva not this kind of structure.
Embodiment 2
1, apparatus structure
User obtains circulating water culture system as shown in Figure 1, wherein, cistern is the plastic bucket of a diameter 170cm, high 100cm, the first water pump in cistern is SP-9000 type water pump, its power is 130-140W, lift is 4.0-5.0m, and flow is 3500-4000L/H, and Inlet and outlet water bore is 18-20mm.Air pump is the super-silent oxygenation low-noise air pump of day raw LP-20 type, and power is 15-20w, and throughput is 20-25L/H, and pressure is 0.025-0.030Mpa, and going out air nozzle number is 5-8Ways, and the degree of depth of fetching water is 2.0-2.5m.Sterilization and disinfection device is the uviol lamp of power 40w, and fluorescent tube model is ZW40D15 (W)-Z851, and ballast model is BS-ZSZ401E, and fluorescent tube length is 85mm, and caliber is 15mm.Thermoregulator is extra large sharp board HC-1000B type cooling-water machine, and temperature control amplitude is 17-35 DEG C, controls at 22-23 DEG C by temperature in cistern, and power is 1HP, and voltage is 220V, cooling water inflow: 300-2500L, quantity of circulating water: 1500-4000L.The second water pump in filtering ponds is SP-7800 type water pump, and its power is 70-80W, and lift is 3.0-4.0m, and flow is 2500-3500L/H, and Inlet and outlet water bore is 20-24mm.Filter comprises the filtration sandbag, screen pack and the filter cotton that stack successively from down to up of changing for washing formula, the described filtration sandbag that stone is housed stacks bottom filtering ponds, it is placed the filtration sandbag that active carbon is housed, again it places one deck screen pack, two-layer filter cotton is placed with above described screen pack, described filter cotton thickness is 9.5-10.5mm, is preferably 10mm.Liquid-level controller is ST-9 type, is inside provided with the duty that float valve controls the second water pump.Liquid-level controller control range is 0.2-5.0m, and temperature range is 5-60 DEG C, can directly actuated water pump peak power be 1.0 horsepowers.And be provided with 10 incubators.
As Figure 6-9, the table shape support 7 of incubator is highly 1m.The diameter of the column part 11 of described body 1 is 240mm, is highly 200mm; Described underpart 12 is 1/3rd of the spheroid of 240mm for diameter.The aperture of the described limbers 13 of the lower end of described underpart 12 is 50mm, the the first ladder pipe 22 be attached thereto by middle adapter turns the straight tube of 20mm for caliber 50mm, and the water inlet pipe 21 be connected in threeway with the first ladder pipe 22 and the caliber of blow-off pipe 31 are 20mm.Below the described column part 11 that described water injection pipe 41 is horizontally set on described body 1 with underpart 12 connection on 5cm position, sidewall symmetry both sides.The caliber of described water injection pipe 41 is 20mm, and the caliber of the elbow be attached thereto is 20mm.Described duck-beak type shower nozzle 43 rotates to being 45 ° obliquely.5cm position under the top, any side of sidewall that described drainpipe 52 is horizontally set on column part 11 top of described body 1.The caliber of described drainpipe 52 is 20mm, and the caliber of the elbow be attached thereto is 20mm.Described second ladder pipe 51 turns the straight tube of 74mm for caliber 20mm, and wherein, the caliber of described second ladder pipe 51 is the length of 74mm part is 8cm, and the lower ending opening of this part.The tube wall of described second ladder pipe 51 is provided with at least one osculum 54, and the aperture of described osculum 54 is 1mm, and the pitch of holes of described osculum 54 is 1mm.Being surrounded by fineness outside described osculum 54 is 100 object yarn thin,tough silk.
As shown in Figure 1, described water inlet pipe 21, water injection pipe 41 are that after connection the 3rd ladder pipe is converged in 20mm threeway, described 3rd ladder pipe is the straight tube that caliber 20mm turns 50mm, is connected with water inlet manifold by caliber.Drainpipe 52 is connected with total outlet pipe by a four-step pipe, and described four-step pipe is the straight tube that caliber 20mm turns 50mm.
Also fluorescent lamp is provided with above described body 1.The outside of described fluorescent lamp is covered with black lampshade.The illumination of described fluorescent lamp is 500-1000lx.As shown in Figure 10, described incubator is also provided with the bait throwing in matched with limbers 13 and blocks pipe 6, one end mouth of pipe blocking of described bait throwing in blocking pipe 6, and the pipe diameter of described bait throwing in blocking pipe 6 is 50mm, and the length of described bait throwing in blocking pipe 6 is 500mm.
2, step is used
Seawater is introduced in cistern, open ultraviolet lamp disinfection sterilization, open air pump to seawater blowing aeration, open thermoregulator and regulate water temperature to 22-23 DEG C.Open the first water pump in cistern again, controlled by three-way pipe, seawater is flowed into water inlet manifold with 1750-2000L/H flow.Meanwhile, three-way pipe can also make water body pass back in cistern, plays the effect of stirring and evenly mixing retaining pool inner water, and supplements the water in cistern.
Open the water inlet control valve door 23 on incubator, Fill control valves door 42, make seawater flow into body 1.Outside the body 1 of each incubator, mark a horizontal line with marking pen, the safety line of representation level, ensure that water in each body 1 is below safety line, puts body 1 into by ovum.Regulate water inlet control valve door 23, current slowly upwards have a less impulse force, keeps the flow velocity comparatively delayed on a current direction, eel seedling is suspended in water, both avoided eel seedling downstream to cause lower jaw abnormality to body bottom, avoided again that impulse force is excessive to be damaged eel seedling.Meanwhile, regulate Fill control valves door 42 to control water velocity, prevent downstream to the eel seedling in body 1 base end wall from stopping for a long time because anoxia asphyxia is dead.
Draining control valve door 53 in the drainage mechanism 5 that any side of sidewall of opening described column part 11 top is again provided with, makes seawater flow into total outlet pipe from body 1.Meanwhile, by regulating draining control valve door 53, make to reach balance into water draining, the moment more renews water, for eel seedling provides a good water environment.Be provided with osculum 54 and yarn thin,tough silk structure in drainage arrangement 5, eel seedling can be stoped together to discharge with seawater.
Seawater flows into filtering ponds by total outlet pipe, and after device filters after filtration, the second water pump in opened filter tank, uses the float valve in liquid-level controller, control the automatic switch of the second water pump, seawater is flowed back in cistern again, the water circulation in keeping system.
When bait throwing in, bait throwing in is blocked pipe 6 and inject described limbers 13 bottom body 1 underpart 12, limbers 13 is blocked.Then open the fluorescent lamp above body 1, first close water inlet control valve door 23, Fill control valves door 42 and draining control valve door 53.With glass pipette, bait is delivered to the bottom of described opaque underpart 12, due to the negative phototaxis of common eel, eel seedling can move to this place food.Feeding, after 15 minutes, closes fluorescent lamp, removes bait throwing in blocking pipe 6.Open Fill control valves door 42, by duck-beak type shower nozzle 43, bait residue is passed through limbers 13 with water, pour the first ladder pipe 22.Open blowdown by-pass valve control 32, by blow-off pipe 31, bait residue is drained.Close blowdown by-pass valve control 32 again, reopen water inlet control valve door 23, intake from bottom.Meanwhile, open draining control valve door 53, keep the water circulation in body 1.
3, result of use
A kind of common eel incubating oosperm in employing the present invention and the circulating water culture system of larvae cultivation, compared with the cultivating system of raising common eel with existing routine, its concrete effect is with described in embodiment 1.
In sum, the circulating water culture system of a kind of common eel incubating oosperm provided by the invention and larvae cultivation and using method thereof, simple and efficient, can realize in less space, realize extensive hatching, its circular water treating system energy controlled circulation water condition of water quality, filtering ponds can filter out refuse in cycle water and harmful substance, chlorination equipment can kill circulation Inactivation of Enteric Viruses In Water, water temperature temperature controller can regulate the temperature of cycle water, thus fish-egg is hatched under the cycle water environment of the best, hatching efficiency is high.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (14)
1. a circulating water culture system for common eel incubating oosperm and larvae cultivation, includes circulating water treatment facility and at least one incubator, and described circulating water treatment facility includes cistern, water inlet manifold, total outlet pipe, filtering ponds; Be provided with the first water pump in described cistern, described first water pump is connected with water inlet manifold through pipeline; Described filtering ponds are connected with total outlet pipe through pipeline, are provided with the second water pump in described filtering ponds, and described second water pump is connected with described cistern through pipeline; Described incubator comprises body and is located at water intake mechanism, pollution discharge mechanism, water injecting mechanism, the drainage mechanism on body, described water intake mechanism is connected with water inlet manifold through pipeline with water injecting mechanism, described drainage mechanism is connected with total outlet pipe through pipeline, is connected with dirt discharge groove under described pollution discharge mechanism.
2. the circulating water culture system of a kind of common eel incubating oosperm according to claim 1 and larvae cultivation, is characterized in that, be also provided with air pump, sterilization and disinfection device and thermoregulator in described cistern; The top of described cistern hides solar protection devices, described solar protection devices be selected from four layers of sunshade net, folding sunshading board any one.
3. the circulating water culture system of a kind of common eel incubating oosperm according to claim 1 and larvae cultivation, it is characterized in that, described first water pump is provided with three-way pipe, first mouth of pipe of described three-way pipe is connected with described first water pump through pipeline, second mouth of pipe of described three-way pipe is connected with water inlet manifold through pipeline, the 3rd mouth of pipe of described three-way pipe through pipeline tapping in cistern; Described three-way pipe is provided with valve.
4. the circulating water culture system of a kind of common eel incubating oosperm according to claim 1 and larvae cultivation, is characterized in that, be also provided with filter and liquid-level controller in described filtering ponds; Described filter comprises the filtration sandbag, screen pack and the filter cotton that stack successively from down to up; Be provided with float valve in described liquid-level controller, described liquid-level controller is connected with described second water pump.
5. the circulating water culture system of a kind of common eel incubating oosperm according to claim 1 and larvae cultivation, is characterized in that, the top of described body is the column part of top end opening; The bottom of described body be circular cross section diameter by upper large to lower little, and outer wall is the underpart of the level and smooth gradient; The outer wall of described column part is transparent, and the outer wall of described underpart is opaque; The below of described body is also provided with support.
6. the circulating water culture system of a kind of common eel incubating oosperm according to claim 1 and larvae cultivation, it is characterized in that, the bottom of described body is provided with limbers, and described limbers first ladder pipe is connected with water intake mechanism and pollution discharge mechanism; The top of described body is provided with at least one drainage mechanism, and described drainage mechanism comprises horizontally disposed drainpipe and the second ladder pipe, and described drainpipe extends in body, and described second ladder pipe is communicated with one end of drainpipe and Open Side Down; The bottom of described body is provided with two water injecting mechanism, and described water injecting mechanism comprises horizontally disposed water injection pipe, and described water injection pipe extends in body; Described water injection pipe and described drainpipe are in the horizontal direction in cross-distribution.
7. the circulating water culture system of a kind of common eel incubating oosperm according to claim 5 and larvae cultivation, is characterized in that, described first ladder pipe be in vertical direction caliber by upper thick to lower thin secondary ladder straight tube; Described water intake mechanism comprises horizontally disposed water inlet pipe, and one end of described water inlet pipe is communicated with the first ladder pipe; Described pollution discharge mechanism comprises vertically disposed blow-off pipe, and one end of described blow-off pipe is communicated with the first ladder pipe; The other end of described water inlet pipe, water injection pipe is connected with water inlet manifold, and the other end of described drainpipe is connected with total outlet pipe, and the other end of described blow-off pipe is connected with dirt discharge groove.
8., according to the circulating water culture system of the arbitrary described a kind of common eel incubating oosperm of claim 6-7 and larvae cultivation, it is characterized in that, described water inlet pipe is provided with water inlet control valve door; Described blow-off pipe is provided with blowdown by-pass valve control; Described water injection pipe is provided with Fill control valves door; Described drainpipe is provided with draining control valve door.
9. the circulating water culture system of a kind of common eel incubating oosperm according to claim 5 and larvae cultivation, it is characterized in that, the drainpipe of described drainage mechanism is arranged on the sidewall on described column part top, described drainage mechanism is one, or described drainage mechanism is two and the drainpipe of two drainage mechanisms distributes along the sidewall symmetry on column part top; The water injection pipe of described water injecting mechanism is arranged on the sidewall of described column part bottom, and the water injection pipe of described two water injecting mechanism distributes along the sidewall symmetry of column part bottom; Described water injection pipe and described drainpipe distribute in right-angled intersection in the horizontal direction.
10. the circulating water culture system of a kind of common eel incubating oosperm according to claim 5 and larvae cultivation, is characterized in that, described second ladder pipe be in vertical direction caliber by upper thin to lower thick secondary ladder straight tube; The tube wall of described second ladder pipe is provided with at least one osculum; Yarn thin,tough silk is surrounded by outside described osculum.
The circulating water culture system of 11. a kind of common eel incubating oosperms according to claim 5 and larvae cultivation, it is characterized in that, described water injection pipe extends on the one end in body and is also provided with duck-beak type shower nozzle; Described duck-beak type shower nozzle is revolving.
The circulating water culture system of 12. a kind of common eel incubating oosperms according to claim 5 and larvae cultivation, is characterized in that, be also provided with fluorescent lamp above described body; The outside of described fluorescent lamp is covered with black lampshade; Described incubator is also provided with the bait throwing in matched with limbers and blocks and manage.
13., according to the using method of the circulating water culture system of the arbitrary described a kind of common eel incubating oosperm of claim 1-12 and larvae cultivation, comprise the following steps:
1) seawater is introduced in cistern, open ultraviolet lamp disinfection sterilization, open air pump to seawater blowing aeration, open thermoregulator and regulate water temperature;
2) open the first water pump in cistern again, controlled by three-way pipe, seawater is flowed into water inlet manifold with certain flow;
3) open the water inlet control valve door on incubator, Fill control valves door and draining control valve door, after seawater flows through body, flow into filtering ponds by total outlet pipe and filter;
4), after filtering, by the second water pump in the opened filter tank of the float valve in liquid-level controller, seawater is flowed back in cistern again, the water circulation in keeping system;
5) after putting ovum into body, regulate water inlet control valve door, Fill control valves door and draining control valve door, keep the water balance in body;
6) use bait throwing in blocking blockage limbers, open fluorescent lamp, close water inlet control valve door, Fill control valves door and draining control valve behind the door simultaneously, carry out bait throwing in feeding;
7) close fluorescent lamp after bait throwing in feeding, remove bait throwing in blocking pipe, open Fill control valves door and blowdown by-pass valve control, bait residue is drained;
8) close blowdown by-pass valve control, then open water inlet control valve door and draining control valve door, again keep the water balance in body.
14. are hatching the purposes in common eel fertilized egg and cultivation common eel newly hatched larvae according to the circulating water culture system of the arbitrary described a kind of common eel incubating oosperm of claim 1-12 and larvae cultivation.
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| CN109618988A (en) * | 2019-01-25 | 2019-04-16 | 中国水产科学研究院东海水产研究所 | Method for temporarily cultivating in a kind of Japanese eel room |
| CN109673550A (en) * | 2019-02-22 | 2019-04-26 | 海南宝路水产科技有限公司 | The Tilapia mossambica hatch fish roe circulatory system |
| CN111109167A (en) * | 2019-12-31 | 2020-05-08 | 天津市换新水产良种场 | Fish embryonated egg batch debonding incubation system |
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| CN105230552A (en) * | 2015-10-16 | 2016-01-13 | 安徽农业大学 | Filtration system used for fish reproduction water |
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| CN109618988A (en) * | 2019-01-25 | 2019-04-16 | 中国水产科学研究院东海水产研究所 | Method for temporarily cultivating in a kind of Japanese eel room |
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| CN111493010A (en) * | 2020-04-25 | 2020-08-07 | 中国水产科学研究院黑龙江水产研究所 | Separated circulating water-saving fish hatching equipment |
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