CN109864018A - Heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method - Google Patents
Heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method Download PDFInfo
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- CN109864018A CN109864018A CN201711268763.4A CN201711268763A CN109864018A CN 109864018 A CN109864018 A CN 109864018A CN 201711268763 A CN201711268763 A CN 201711268763A CN 109864018 A CN109864018 A CN 109864018A
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Abstract
The present invention relates to a kind of heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural methods, this method is kept the temperature based on large span flexible heat-insulating plastic house, high-performance bio lautertuns is constructed on the longitudinal two side pool ridge of cultivating pool, biofilter material is filled in biofiltration slot, and in filtrate surface layer planting aquatic plants, it is mentioned by pumping and Pipeline transport in pond discharge outlet side, pond bottom water is sent into high-performance bio lautertuns, to make water body be purified processing and flow back to pond from pond water inlet lateral line, the biological cycle purified treatment of cultivating pool water body is realized；Aerator is respectively configured in cultivating pool, covers breeding water body oxygen-enriching and disinfection function；Large-scale intelligent feeds the use of aeration system, so that breeding production is fed management and realizes automation.The present invention carries out circular treatment to water quality in pond using high-performance bio lautertuns, and water treatment effect is good, and the design of this method cultural method is rationally, improves economic benefit.
Description
Technical field
The present invention relates to a kind of heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural methods.
Background technique
Tilapia mossambica aquaculture generally faces safe overwintering bottleneck at present.Building heat preservation greenhouse is having for Tilapia mossambica safe overwintering
Efficacious prescriptions method, but that there is also spaces in canopy is relatively closed, breeding water body dissolved oxygen is insufficient, water quality is easy the problems such as deteriorating for heat preservation greenhouse,
Thus restrict the raising of heat preservation greenhouse overwintering cultured output and benefit.
The report for having circulating water cultivation Tilapia mossambica is seen in disclosed document, but in the technical solution of these cultivation, circulation
The treatment process of water is relatively complicated, and cultural method is not reasonable, and the economic benefit is not high.
Summary of the invention
The technical problem to be solved by the present invention is it is feeding to provide a kind of heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency
Method is grown, this method carries out circular treatment, water treatment effect to water quality in heat preservation greenhouse pond using high-performance bio lautertuns
It is good, and the design of this method cultural method is rationally, improves economic benefit, solves above-mentioned problems of the prior art.
The technical solution for solving above-mentioned technical problem is: a kind of heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultivation
Method, the longitudinal two side Tang Geng in pond are built with the high-performance bio lautertuns for handling water body in pond, are covered on pond big
Span flexible heat-insulating greenhouse, pond are also configured with aerator and feed aeration system,
The high-performance bio lautertuns includes groove body, and the groove body includes fillter section groove body and after fillter section groove body
Precipitating phase groove body, fillter section groove body front end are provided with water inlet, and water outlet, the fillter section slot are provided on precipitating phase groove body
Internal transpostion interval is provided with several baffle upper plates and chin spoiler, is filled with filter medium, filter medium in fillter section groove body
Packed height be the 2/3 of fillter section groove body height；Kind is implanted with water plant in fillter section groove body inner filter media；
It is mentioned by pumping and Pipeline transport in pond discharge outlet side, pond bottom water is sent into high-performance bio lautertuns, to make
Water body is purified processing and flows back to pond from pond water inlet lateral line, at the biological cycle purification for realizing cultivating pool water body
Reason.
Heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method of the present invention the following steps are included:
A, intercropping mode: using main feeding Tilapia mossambica, intercropping silver carp, bighead mode；
B, seed rearing: fry is thrown to fish pond by annual June, and Tilapia mossambica fry average size is 2.1-2.2cm, and stocking rate is
Ten thousand tails of 2.1-2.2/mu, intercropping silver carp and bighead 100 tails/mu, in which: 70 tails of silver carp/mu, 30 tails of bighead/mu, the equal 15cm of specification
More than；June to November is the seed rearing stage, and December to second year March is overwintering cultivation stages, and second year April to September is sieve
Non- fish adult fish culture and other intercropping fish culture stages；
C, aquaculture management: seed rearing and adult fish culture are according to " lucky richness bolti cultural technique regulation DB46/T130-
2008 " it executes.
The specific method is as follows for the overwintering cultivation of the present invention:
(1) Wintering Period: Wintering greenhouse, that is, large span flexible heat-insulating greenhouse bedding before annual December, until in March, the 2nd is more
Winter greenhouse cultivation stages；
(2) water level and water temperature control: the water level in overwintering greenhouse pond should reach the peak level in pond as far as possible, and water temperature should control
At 12~30 DEG C；
(3) water quality adjustment: filling new water according to temperature and water temperature in due course, 18 DEG C of water temperature or more and it is fine when, daytime is each
Change water height 10-30cm；Aerator is opened in due course, and the especially overwintering later period keeps booting oxygenation in 24 hours；The micro- life of full pool spilling head
Object preparation；
(4) bait throwing in controls: water temperature stops to feed lower than 18 DEG C；20 DEG C of fine day or more feed in right amount, and 18-20 DEG C halves；Rainy days, weather
Mutation the previous day stops feeding；
(5) control and prevention of disease: An ounce of prevention is worth a pound of cure, microscopy of periodically sampling, and emphasis prevents Tilapia mossambica ich and bacillary
Disease；
(6) water temperature detection: monitoring record pond water temperature when Wintering Period daily 8:00；
(7) wind and rain monitors: observing and recording rainfalls in 24 hours, the wind direction situation of local meteorological department's publication daily.
A further technical solution of the present invention is: the bottom surface of the fillter section groove body is plane, the bottom of precipitating phase groove body
Face is the high V-type in intermediate low both ends, is provided with baffle in the middle part of precipitating phase groove body, baffle bottom surface is at a distance from precipitating phase groove body bottom surface
H1 is 300~500mm；Horizontal distance D between adjacent baffle upper plate and chin spoiler is 3500~4500mm, chin spoiler
The vertical range H2 of top surface and fillter section groove body top surface is 150~250mm, and baffle upper plate bottom surface is hung down with fillter section groove body bottom surface
Directly distance H3 is 150~250mm；The filter medium is one in rock ballast, cinder, pelelith, zeolite, charcoal or diatomite
Kind is several.
The aerator includes paddle aerator and ozone jet aerator.
The large span flexible heat-insulating greenhouse mainly by precast reinforced concrete piles, cast-in-situ steel reinforced concrete foundation ring beam,
Steel pipe framework, two layers of netted zinc-coated wire skeleton and plastic film composition.
Due to the adoption of the above technical scheme, the invention has the following advantages:
1, the present invention carries out circular treatment, water treatment effect to water quality in heat preservation greenhouse pond using high-performance bio lautertuns
It is good, Tilapia mossambica can safe overwintering, solve the problems, such as presently, there are Tilapia mossambica aquaculture safe overwintering it is difficult.
The high-performance bio filtering slot structure that the present invention uses is simple, and filter medium selects cheap rock ballast also to can get
Ideal water treatment efficiency, and do not need to add any other preparation or microorganism in rock ballast, it is led under by baffle upper plate
Flowing plate carries out water conservancy diversion to water body to be made to generate bacterial digestion naturally between rock ballast or the gap of other filter mediums using water flow,
Biological filter membrane is formed, is degraded to substances such as ammonia nitrogen, nitrite in water body, while the water plant that cultivation has can also disappear
Consume the elements such as nitrogen, phosphorus in water body, furthermore it is also possible to cultivate the biologies such as freshwater mussel, spiral shell, loach in fillter section groove body, with into
One step purifies water.Therefore the high-performance bio lautertuns of the present invention, so that pond culture water energy is reached circular treatment use, solves big
Span heat preservation greenhouse is steeply risen using middle breeding water body ammonia nitrogen, nitrite index, the temperature difference can not change water greatly so as to cause life
The problem of producing loss, while also achieving the purpose that save breeding water and energy-saving and emission-reduction, it is advantageous to environmental protection.
When not needing water quality treatment in the non-cultivation phase, the intracorporal water of slot is discharged, by the sun by the intracorporal mistake of slot
Filter medium dries, and during the sun dries, regular turnover filter medium makes all filter mediums that can obtain sunlight
The microorganism in filter medium can be dried up according to solarization by being exposed to the sun for the sun, filter medium, that is, reusable does not need
In addition it replaces, therefore the high-performance bio lautertuns that the present invention uses is easy to use.
2, the present invention can be improved economic benefit, have wide popularization and application foreground.
In the following, in conjunction with the accompanying drawings and embodiments to the heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultivation side of the present invention
The technical characteristic of method is further described.
Detailed description of the invention
Fig. 1: the technology pattern schematic diagram of the heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method of the present invention.
Fig. 2: the high-performance bio of the present invention filters slot structure schematic diagram.
Fig. 3: the high-performance bio lautertuns top view (being not drawn into filter medium and water plant) of the present invention.
Fig. 4: the high-performance bio lautertuns front sectional view (being not drawn into filter medium and water plant) of the present invention.
Fig. 5: the large span flexible heat-insulating greenhouse structure schematic diagram of the present invention.
Fig. 6: the pond floor map of the embodiment of the present invention.
In figure: 1- high-performance bio lautertuns, 11- groove body, 111- fillter section groove body, 112- precipitating phase groove body, 12- water inlet
Mouthful, 13- baffle upper plate, 14- chin spoiler, 15- filter medium, 16- water plant, 17- demarcation plate, 18- baffle, 19- water outlet
Mouthful.
2- large span flexible heat-insulating greenhouse, 21- hot air delivery system, 211- heat pump, 22- frame structure steel pipe girder, 23-
Frame structure steel pipe collar tie beam, 24- meshy steel wire rope structure, 25- cast-in-situ steel reinforced concrete immobilizing foundation, 26- armored concrete are pre-
Pile foundation processed, 27- single layer farm plastic greenhouse film thermal insulating layer.
The pond 3-, 31- water inlet closed conduit, 32- water inlet, 33- pumping plant, 34- gully, 35- closed drain.
Specific embodiment
Embodiment 1: a kind of heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method, including walk in detail below
It is rapid:
(1) cultivate place and cultivating condition: place, which is located at, red belonging to the profit agricultural development Co., Ltd in Liuzhou City day defends reservoir water
Cultivation Demonstration Base is produced, the northern ecological new district Liubei District town the Dong Quan middle section village in Liuzhou City is located at.Reservoir catchments naturally, and downstream is not required to
Irrigation water.It creates overwintering greenhouse circulating water cultivation test pond 4 to open, 20 mu of the gross area.Pond pool dike and bed mud are red soil
Soil, no bed mud.Water source is nature collection rain, underground natural spring water, phreatic water.Base electricity consumption has a good transport service, and tests by professional skill
Art and the direct aquaculture management of poultry feeders, periphery social security, cultivation order are preferable.
(2) technical flow design: using " cultivating pool+high-performance bio lautertuns+large-scale intelligent feeds aeration system+leaf
Wheel type aerator+ozone jet aerator+large span flexible heat-insulating greenhouse " technology pattern (as shown in Figure 1).
It is kept the temperature based on large span flexible heat-insulating plastic house, in the longitudinal two side pool ridge building high-performance bio filtering of cultivating pool
Slot fills biofilter material in biofiltration slot, and in filtrate surface layer planting aquatic plants, passes through pumping in pond discharge outlet side
It mentions and Pipeline transport, pond bottom water is sent into high-performance bio lautertuns, passes through settling zone precipitating, biofilm filtration, aquatic plant
Object root system absorbs, and rich nutritive material in water body is enable to remove, so that water body be made to be purified processing and from pond water inlet side
Pipeline flows back to pond, realizes the biological cycle purified treatment of cultivating pool water body；Cultivating pool be respectively configured paddle aerator,
Ozone jet aerator covers breeding water body oxygen-enriching and disinfection function, enables cultivation density and safety in production
Guarantee；Large-scale intelligent feeds the use of aeration system, so that breeding production is fed management and realizes automation, synchronous aeration system covering
It is entire to feed feeding area, advanced optimize the environment of ingesting of cultivation object.
(3) pond design and construction technique measure: face is taken up an area in design 4 cultivating pools (as shown in Figure 6) arranged side by side, single pond
4.3 mu of product, water inlet side deep 2.5 meters, 3.0 meters of discharge outlet side, into discharge outlet north-south point column；Single pond is 75 meters long × wide by 38
Rice, 2850 square metres of area；The practical waters in pond is 68 meters long × 32 meters wide, and 2176 square metres of area；Pond surrounding pool dike is wide by 3
Rice, adjacent pond pool dike are 6 meters wide；Pond pool levee slope ratio 1:2.5, the average pool is 2.75 meters deep, 2.5 meters of normal water storage.
The longitudinal two side Tang Geng in pond are built with the high-performance bio lautertuns for handling water body in pond, are covered on pond
Large span flexible heat-insulating greenhouse, pond are also configured with aerator and feed aeration system.
(4) design of recirculated water high-performance bio treatment trough and construction: high-performance bio lautertuns designs (as shown in figs 2-4),
Including groove body 11, the groove body includes fillter section groove body 111 and the precipitating phase groove body 112 after fillter section groove body, filtering
Separated between section groove body 111 and precipitating phase groove body 112 by the demarcation plate 17 lower than groove body 11, fillter section groove body front end is provided with
Water inlet 12 is provided with water outlet 19 on precipitating phase groove body, and transpostion interval, which is provided on several, in the fillter section groove body leads
Flowing plate 13 and chin spoiler 14, fillter section groove body is interior to be filled with filter medium 15, and the packed height of filter medium is fillter section slot
The 2/3 of body height；Kind is implanted with water plant 16 in fillter section groove body inner filter media；The bottom surface of the fillter section groove body 111
For plane, the bottom surface of precipitating phase groove body 112 is the high V-type in intermediate low both ends, is provided with baffle 18 in the middle part of precipitating phase groove body 112,
Baffle bottom surface is 300~500mm, preferably 400mm with 112 bottom surface distance H1 of precipitating phase groove body；Adjacent 13 He of baffle upper plate
Horizontal distance D between chin spoiler 14 is 3500~4500mm, preferably 4000mm, chin spoiler top surface and fillter section groove body top
The vertical range H2 in face is 150~250mm, preferably 200mm, the vertical range H3 of baffle upper plate bottom surface and fillter section groove body bottom surface
For 150~250mm, preferably 200mm；Demarcation plate 17 is 150~250mm, preferably 200mm lower than the vertical range H4 of groove body 11.
The filter medium is one or more of rock ballast, cinder, pelelith, zeolite, charcoal or diatomite.
Biofiltration slot arrangement is using point longitudinal two sides in column pond；Design specification is that internal diameter is 80 centimetres wide, 80 centimetres deep, brick
Deflector, the same pond of length is arranged at interval of 4 meters of top-bottom cross in mixed structure；Design discharge: 60 cubes ms/h；Cross water section
Product: 0.52 square metre；Circulating water treatment amount: 3.5-4.0 days/time.
The water plant is water hyacinth, aquatic water spinach, oenanthe stolonifera etc..
The water treatment effect of high-performance bio treatment trough of the present invention such as following table 1(monitoring time is 2016, the date in table
Indicate the moon, day).
1. high-performance bio treatment trough water treatment monitoring effect of table
From table 1 it follows that the ammonia nitrogen of slot outlet, COD numerical value will be significantly lower than slot entrance, show invention of the present invention to water quality
Middle ammonia nitrogen, COD treatment effect clearly, in addition also have the effect of to the processing of total nitrogen, total phosphorus in water quality certain.
(5) large-scale to feed aeration system design and installation: to feed aeration system with combined type, feeding main equipment is storage
Feed bin, feeding fan, gets rid of glassware, electric control system etc. at pressure fan；4 tons of storage bin maximum storing, conveyance conduit maximum distance
100 meters；360 degree of directions of glassware are got rid of to jettisoning feed；Electric control system controls 380 volts of voltage, designs four groups, feeds date, secondary
Number, time, frequency etc. are adjustable；1 set of micro-pore oxygenation unit, 2.2 kilowatts, four ponds are managed, branch pipe is installed respectively and nanometer exposes
Gas head, nanometer aeration head, which is arranged in, gets rid of glassware surrounding bottom, and for micro-pore oxygenation centered on getting rid of glassware, it is flat that area coverage is greater than 400
Square rice.
(6) water surface ooxygenation facility is installed: installing paddle aerator 1,3 kilowatts of power in each pond；Ozone jetting type
1, aerator, 3 kilowatts of power.
(7) electric power facility design and mating installation: backup diesel power generation is purchased in new installation 100 kilovolt-amperes 1, transformer
Unit 1 set (50 kilowatts of power), 500 meters of three-phase and four-line power circuit.
(8) design of large span flexible heat-insulating greenhouse and construction: design large span flexible heat-insulating greenhouse is pre- by armored concrete
Stake, cast-in-situ steel reinforced concrete foundation ring beam, steel pipe framework, two layers of netted zinc-coated wire skeleton and plastic film composition processed are (such as Fig. 5 institute
Show)；For the span of large span flexible heat-insulating greenhouse theoretically up to 120 meters, greenhouse internal-external temperature difference is up to 10-15 degree, it is sufficient to meet
The heat preservation demand in conventional cultivation pond.
(9) Tilapia mossambica seed rearing and adult fish culture
1, test fish: using Guangxi aquatic science research institute " Gui Fei 1 " Rofe fry, and average size 2.13cm is directly launched
Pond rearing, winter overwintering greenhouse cultivation, other intercropping fingerlings are bought in locality.
2, seed rearing: test tank fry be all purchased from Guangxi and via after seed rearing supply overwintering cultivation.June to November
For the seed rearing stage, December to second year March is overwintering cultivation stages, and April to September is Tilapia mossambica adult fish culture and other sets
Class of breeding fish cultivation stages.
3, aquaculture management: seed rearing and adult fish culture are according to " lucky richness bolti cultural technique regulation " (DB46/
T130-2008) (Hainan Provincial Fisheries Research Institute, 2008) execution.
4, design is put in overwintering cultivation in a suitable place to breed:
Test tank 1-4 is supported overwintering Rofe fingerling+intercropping silver carp, bighead mode using master
Rofe fry, intercropping collocation silver carp, bighead are launched at the beginning of 7 months 2016, each pond puts situation in a suitable place to breed and is shown in Table 2, in addition intercropping silver carp
With 100 tails of bighead/mu, in which: 70 tails of silver carp/mu, 30 tails of bighead/mu, the equal 15cm or more of specification.
2. test tank adult fish culture fingerling stocking situation of table
(10) breeding feed
Feed needed for fry rearing, the cultivation of overwintering greenhouse and adult fish culture is purchased from Guangxi Guigang Hai great feed corporation,Ltd, Guangxi
Hundred foreign feed corporation,Ltds and Guangxi Ao Hua feed corporation,Ltd, are expanded pellet diet.
(11) overwintering greenhouse aquaculture management
1, Wintering Period: Wintering greenhouse bedding before annual December, until in March, the 2nd is overwintering greenhouse cultivation stages.
2, water level and water temperature control: the water level in overwintering greenhouse pond should reach the peak level in pond as far as possible.Water temperature is answered
Control extracts deep-well GEOTHERMAL WATER at minimum 15 DEG C or more, when lower than 15 DEG C to ensure required minimum temperature.The overwintering later period, temperature by
Edge up height, it should be noted that it is aeration-cooling to open canopy, guards against high temperature, muggy weather causes anoxic dead fish.
3, water quality adjustment: filling new water according to temperature and water temperature in due course, 18 DEG C of water temperature or more and it is fine when, daytime is every
It is secondary to change water 10-30cm；Aerator is opened in due course, and the especially overwintering later period keeps booting oxygenation in 24 hours；Full pool spilling head microorganism
Preparation.
4, bait throwing in controls: water temperature stops to feed lower than 18 DEG C；20 DEG C of fine day or more feed in right amount, and 18-20 DEG C halves；Rainy days,
Stop to feed on the day before change in weather.
5, control and prevention of disease: An ounce of prevention is worth a pound of cure.Periodically sampling microscopy.Emphasis prevents Tilapia mossambica ich and thin
Bacterium property disease.
6, water temperature detection: the overwintering greenhouse pond of monitoring record and overwintering pond (control pond) when Wintering Period daily 8:00
Water temperature.
7, wind and rain monitors: observing and recording rainfalls in 24 hours, the wind direction situation of local meteorological department's publication daily.
(12) control and prevention of disease measure: periodically being sterilized with chlorine dioxide effervescent tablet, periodically feed mix feed allicin, Victoria C,
Astragalus polyose and yeast cell wall polysaccharide, the helminths such as the small melonworm of the regular emphasis microscopy of Wintering Period, Dactylogyrus, Trichodina, high temperature
Season reduces feeding rate, reduces feeding volume, feeding hack, feeding platform, feeding tray periodic cleaning, disinfection.Whole intercropping Grass carps are launched after vaccinating
Water body.Tilapia mossambica silver carp coccus morbidity season periodic sampling carries out the measures such as laboratory cause of disease culture monitoring, drug sensitive test.
(13) harvest statistics: pool harvest specification is counted according to each pond commodity adult fish sales situation respectively, yield, is survived
Rate etc..
(14) Economic and Efficiency Analysis: correlative charges and the receipts such as, seed feeds utilized to test tank, electricity consumption, manpower, pool rent
It obtains situation and carries out Economic and Efficiency Analysis.
As a result
(1) high-yield and high-efficiency cultivates result
1, cultivation harvest situation.
Pond culture test tank supports Tilapia mossambica+intercropping silver carp bighead in 2 months 2017 in June, 2016-of development master respectively, in
On March 28th, 2017 is started selling, until on July 10th, 2017 clean up the pond to pond catching sale result, obtains each pond Rofe
Fish adult fish culture test harvest situation is shown in Table 3.
3. test tank culture experiment of table harvests situation
2, Economic and Efficiency Analysis situation
The correlative charges such as, seed feeds utilized to test tank, electricity consumption, manpower, pool rent, pond construction and harvest situation carry out economical
Performance analysis.Obtaining test cultivation input and output per mu the results are shown in Table 4, obtains test economic benefit of aquaculture comparable situation and is shown in Table 5.
Table 4. tests pool cultivated input and output situation
5. test tank economic benefit of aquaculture comparative situation of table
(2) economic benefit
This technology carries out overwintering greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultivation integrated technology by research in 1 year and demonstration
13.2 mu of demonstration cultivation.Total 97.28 ten thousand yuan of investment, 10.037 ten thousand kilograms of adult fish of total yield Tilapia mossambica commodity, the gross output value 125.934 ten thousand
Member, 28.654 ten thousand yuan of gross profit, 7603.5 kilograms of yield per mu, 9.541 ten thousand yuan of the output value per mu, 2.1808 ten thousand yuan of profit per mu；
Input-output ratio 1:1.29, investment yield 29.45%.
Claims (6)
1. a kind of heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method, it is characterised in that: pond (3) longitudinal two sides
The pool ridge is built with the high-performance bio lautertuns (1) for handling water body in pond, and it is big to be covered with large span flexible heat-insulating on pond
Canopy (2), pond are also configured with aerator and feed aeration system,
The high-performance bio lautertuns includes groove body (11), and the groove body includes fillter section groove body (111) and is located at filtering
Precipitating phase groove body (112) after section groove body, fillter section groove body front end is provided with water inlet (12), is provided with out on precipitating phase groove body
The mouth of a river (19), transpostion interval is provided with several baffle upper plates (13) and chin spoiler (14) in the fillter section groove body, filters
Filter medium (15) are filled in section groove body, the packed height of filter medium is the 2/3 of fillter section groove body height；Fillter section groove body
Kind is implanted with water plant (16) in inner filter media；
It is mentioned by pumping and Pipeline transport in pond discharge outlet side, pond bottom water is sent into high-performance bio lautertuns, to make
Water body is purified processing and flows back to pond from pond water inlet lateral line, at the biological cycle purification for realizing cultivating pool water body
Reason.
2. heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method according to claim 1, it is characterised in that:
The following steps are included:
A, intercropping mode: using main feeding Tilapia mossambica, intercropping silver carp, bighead mode；
B, seed rearing: fry is thrown to fish pond by annual June, and Tilapia mossambica fry average size is 2.1-2.2cm, and stocking rate is
Ten thousand tails of 2.1-2.2/mu, intercropping silver carp and bighead 100 tails/mu, in which: 70 tails of silver carp/mu, 30 tails of bighead/mu, the equal 15cm of specification
More than；June to November is the seed rearing stage, and December to second year March is overwintering cultivation stages, and second year April to September is sieve
Non- fish adult fish culture and other intercropping fish culture stages；
C, aquaculture management: seed rearing and adult fish culture are according to " lucky richness bolti cultural technique regulation DB46/T130-
2008 " it executes.
3. heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method according to claim 2, it is characterised in that:
The specific method is as follows for overwintering cultivation:
(1) Wintering Period: Wintering greenhouse, that is, large span flexible heat-insulating greenhouse bedding before annual December, until in March, the 2nd is more
Winter greenhouse cultivation stages；
(2) water level and water temperature control: the water level in overwintering greenhouse pond should reach the peak level in pond as far as possible, and water temperature should control
At 12~30 DEG C；
(3) water quality adjustment: filling new water according to temperature and water temperature in due course, 18 DEG C of water temperature or more and it is fine when, daytime is each
Change water height 10-30cm；Aerator is opened in due course, and the especially overwintering later period keeps booting oxygenation in 24 hours；The micro- life of full pool spilling head
Object preparation；
(4) bait throwing in controls: water temperature stops to feed lower than 18 DEG C；20 DEG C of fine day or more feed in right amount, and 18-20 DEG C halves；Rainy days, weather
Mutation the previous day stops feeding；
(5) control and prevention of disease: An ounce of prevention is worth a pound of cure, microscopy of periodically sampling, and emphasis prevents Tilapia mossambica ich and bacterium
Property disease；
(6) water temperature detection: monitoring record pond water temperature when Wintering Period daily 8:00；
(7) wind and rain monitors: observing and recording rainfalls in 24 hours, the wind direction situation of local meteorological department's publication daily.
4. heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method according to claim 1-3,
Be characterized in that: the bottom surface of the fillter section groove body (111) is plane, and the bottom surface of precipitating phase groove body (112) is intermediate low both ends
High V-type, precipitating phase groove body (112) middle part are provided with baffle (18), and baffle bottom surface is at a distance from precipitating phase groove body (112) bottom surface
H1 is 300~500mm；Horizontal distance D between adjacent baffle upper plate (13) and chin spoiler (14) is 3500~4500mm,
The vertical range H2 of chin spoiler top surface and fillter section groove body top surface is 150~250mm, baffle upper plate bottom surface and fillter section groove body
The vertical range H3 of bottom surface is 150~250mm；The filter medium is rock ballast, cinder, pelelith, zeolite, charcoal or diatom
One or more of soil.
5. heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method according to claim 1-3,
Be characterized in that: the aerator includes paddle aerator and ozone jet aerator.
6. heat preservation greenhouse pond tilapia mossambica recirculated water high-yield and high-efficiency cultural method according to claim 1-3,
Be characterized in that: the large span flexible heat-insulating greenhouse mainly by precast reinforced concrete piles, cast-in-situ steel reinforced concrete foundation ring beam,
Steel pipe framework, two layers of netted zinc-coated wire skeleton and plastic film composition.
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