CN106234270B - A method of circulation flowing water fish farming system cultivates Penaeus Vannmei - Google Patents

A method of circulation flowing water fish farming system cultivates Penaeus Vannmei Download PDF

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CN106234270B
CN106234270B CN201610655141.6A CN201610655141A CN106234270B CN 106234270 B CN106234270 B CN 106234270B CN 201610655141 A CN201610655141 A CN 201610655141A CN 106234270 B CN106234270 B CN 106234270B
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water
fish
slot
cultivation
flowing water
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CN106234270A (en
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陈凡
王力
郭水荣
陈凌云
叶键
蒋静
卜利源
倪忠善
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Hangzhou Fishery Technical Center For Popularization
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Hangzhou Fishery Technical Center For Popularization
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042Introducing gases into the water, e.g. aerators, air pumps
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

Abstract

The present invention provides a kind of method of circulation flowing water fish farming system cultivation Penaeus Vannmei, the circulation flowing water fish farming system is arranged in pond, including circulating water treatment area and flowing water fish slot etc., cultivate black carp, the fish slot of grass carp feeds bean pulp type black carp buoyancy expanding feed and grass carp buoyancy expanding feed respectively, culture of Penaeus vannamei feeds Penaeus Vannmei special feed, and carry out water level control, the oxygenation of fish slot, precipitating collecting tank soil pick-up, the oxygenation of culture of Penaeus vannamei area, regulating and controlling water quality etc.;Overall process does not discharge breeding wastewater externally, realizes " zero-emission " of cultivation tail water.

Description

A method of circulation flowing water fish farming system cultivates Penaeus Vannmei
Technical field
The present invention relates to aquaculture field more particularly to a kind of sides of circulation flowing water fish farming system cultivation Penaeus Vannmei Method.
Background technique
It is highly dense that fish culture in running water (running water fish culture) carries out fish in the fishpond for having water flow to exchange Spend the mode of intensive culture.Generally with reservoir, lake, river, mountain stream, spring etc., by water-head, drain or shut off facility and water pump Deng making water constantly flow through fishpond, or fishpond will be reinjected after discharge Water warfare.Since water flow plays input dissolved oxygen and exclusion The effect of fish excreta, water are able to maintain good water quality, create condition for fish high density culture.
Chinese invention patent (application number: 201310336799.7, the applying date: 2013.08.05) disclose a kind of recycle stream Water crawl and fish-cultivating method.Wherein, a kind of circulation flowing water crawl, it is provided with and set is breeded fish including set fish farming area, one end The precipitating that water in area introduces the main fish farming area of the oxygenation priming device of main fish farming area, one end is communicated with the other end of main fish farming area Pond, dirt collection tower, are separated by between sedimentation basin and main fish farming area by mesh sheet, and the other end of sedimentation basin, which has, covers the water in its pond And the pool wall of set fish farming area is flowed into, a kind of fish-cultivating method based on above-mentioned circulation water fish pond cultivates filter in set fish farming area Feeding fish recycles the water cycle process in flowing water crawl are as follows: from set fish farming area diversion to main fish farming area, in main fish farming area Water flows to its other end from one end, enters sedimentation basin precipitated impurities later, and the water purification by precipitating on upper layer is unrestrained in sedimentation basin The pool wall for crossing sedimentation basin flows into set fish farming area, and water is purified again by filter-feeding fish in set fish farming area, is then introduced to Main fish farming area.
Penaeus Vannmei is the featured kind of Hangzhou aquaculture, and the whole city year cultured area is maintained at 100,000 mu or so, Years nearly 40,000 tons of cultivation total output, be the leading of main Penaeus Vannmei freshwater aquiculture region and this city agricultural in Zhejiang Province One of industry.However, since shrimp seedling unstable quality, harsh weather and environmental pollution such as influence at factors, the in recent years cultivation risk It increases, the farming disease harms rise, success rate declines.
Summary of the invention
The object of the present invention is to provide a kind of methods of circulation flowing water fish farming system cultivation Penaeus Vannmei, in flowing water culture It breeds fish in unit, Penaeus Vannmei is cultivated in pond, in conjunction with cultivating wastewater purification, it can be achieved that cultivation tail water " zero-emission ", reduces The influence of cultivation risk, reduction to environment.
In order to achieve the above purpose, present invention employs technical solutions below:
A method of circulation flowing water fish farming system cultivates Penaeus Vannmei, which is arranged in pond It is interior, including circulating water treatment area and flowing water fish slot, front end, the rear end of the flowing water fish slot be respectively arranged with the area Qian Lanxia and after The area Lan Xia, the area Qian Lanxia and the area Hou Lanxia, which are respectively that polyethylene mesh sheet is fixed, to be made into " [ " and " ] " type blocks shrimp net, and blocks preceding Shrimp area, which is provided with, pushes away water ooxygenation facility, and pushing away water ooxygenation facility includes 3 sets gas stripping type ooxygenation facilities, the area Hou Lanxia and flowing water fish slot it Between be provided with precipitating collecting tank, precipitating collecting tank is provided with sewage sucking system, and two side of bottom of flowing water fish slot is provided with bottom oxygenation system System, the setting of circulating water treatment area covers oxygen increasing equipment;The flowing water fish slot includes three intensive culture fish slots, and three intensive Change cultivation fish slot water inlet with water outlet both ends is respectively arranged with fish screen, cultivated respectively in intensive culture fish slot black carp, grass carp and Seven-star perch, puts completion in a suitable place to breed at the beginning of 5 months, black carp unit stocking rate is 10 ~ 20 tails/cubic meter, grass carp unit stocking rate be 20 ~ 30 tails/ Cubic meter, seven-star perch unit stocking rate are 40 ~ 50 tails/cubic meter;Circulating water treatment area cultivates Penaeus Vannmei, the South America White shrimp divides regrowth hair to cultivate, and puts in a suitable place to breed through the thick shrimp seedling of greenhouse mark, puts in a suitable place to breed first batch of mid-May, the listing of late June harvesting, second Stubble late July puts in a suitable place to breed, and the listing of harvesting mid-November, first batch of unit stocking rate is 2 ~ 2.5 ten thousand tails/mu, and first batch of unit is put in a suitable place to breed Amount is 1.5 ~ 20,000 tails/mu;
Cultivation black carp, grass carp fish slot feed bean pulp type black carp buoyancy expanding feed and grass carp buoyancy expanding feed respectively, Crude protein content is respectively 32%, 36%;The fish slot of cultivation seven-star perch feeds the fish buoyancy expanding that crude protein content is 44% and raises Material;Early period is cultivated, daily 6:00,12:00,18:00 are respectively fed once in fish slot upstream, and daily 6:00,18:00 are respectively thrown from June It feeds primary;After normal material feeding, feeding rate is the 1.5%~2% of each fish slot memory pool amount, and feeding rate is deposit pool amount 2.5% from July ~3%;Speed is fed in control, does not drift out fish slot with feed as degree, control is eaten up in 10 ~ 15 minutes;
Culture of Penaeus vannamei feeds Penaeus Vannmei special feed, and feeding rate is deposit pool shrimp weight 1.5 ~ 2.5%, edge Pond surrounding, which uniformly dissipates, throws, and checks food situation in time, cultivates and was eaten up with 1.0 ~ 2.0 hours as degree early period, after cultivation one month To eat up in 1 hour as degree;Primary feeding amount is adjusted weekly, and incrementss are the 10%~20% of last feeding period feeding amount;
Water level control: cultivation keeps 1.5 meters of the fish slot depth of water early period, gradually increases water level from June, keeps the fish slot depth of water 1.6 Rice~1.7 meters after second batch of shrimp seedling of late August puts one month in a suitable place to breed, increases water level to pond peak level, i.e. water is 1.8 meters deep ~2.0 meters;
Fish slot oxygenation: after fingerling stocking, uninterruptedly starting for gas stripping type ooxygenation facility 24 hours, and cultivation initial stage starts 1 set, and 6 It rises the moon and starts 2~3 sets depending on weather conditions;It opens within bottom oxygen increasing equipment 24 hours, cooperation pushes away water ooxygenation facility and smoothly pushes away excreta To the precipitating collecting tank of flowing water fish slot end;
Precipitate collecting tank soil pick-up: 1 hour soil pick-up is secondary after feeding intake sooner or later daily early period, each soil pick-up 3 ~ 4 minutes, until being sucked out Sewage is homochromy with water;Middle and later periods soil pick-up number increases to 3 times~5 times, or extends the soil pick-up time 7 minutes every time~10 minutes;
The oxygenation of culture of Penaeus vannamei area: 1/2 oxygen increasing equipment is opened in cultivation early period, fine day noon and after midnight to morning when Duan Bikai gradually increases startup equipment or extends the available machine time from June, evening standard-sized sheet;After first batch of shrimp harvesting listing below the moon to 7 Ten days, second batch of shrimp seedling was put in a suitable place to breed just, opened 1/2 oxygen increasing equipment in turn, and cultivation gradually increases startup equipment or extends booting after 1 month Time, evening standard-sized sheet;
Regulating and controlling water quality: chlorine dioxide, bromochloroin or quick lime was used alternatingly in circulating water treatment area every 20 days and carries out Water body disinfection;Water transfer, which is carried out, using a saccharomycete or EM bacterium or amino acid etc. weekly changes water, not medication in flowing water fish slot.
Preferably, the water ooxygenation facility that pushes away is mounted on by 3 sets of gas stripping type ooxygenation facilities by tracheae series winding correspondence At three 1 meter of fish slot groove body front ends, every set gas stripping type ooxygenation facility is evenly distributed micro- by 1 whirlpool air blower, 20 cm of spacing Hole pipe is made 4 micro-pore aeration units of the m of 1.2m × 1.05 and is in the monolithic specification that 45° angle is arranged with micro-pore aeration unit It pushes away water deflector, bracket and pontoon for 1.3m × 5.0m to collectively constitute, water exchange capacity is 1000 cubes ms/h.
Preferably, the oxygen increasing equipment in the circulating water treatment area includes the respectively arranged water of pond quadrangle water flow node Vehicle type aerator, and 8 paddle aerators and 2 surge machines being arranged in the middle part of pond.
Preferably, the bottom aeration system is by sequentially connected Roots blower and inflation general pipeline, branch pipe and micropore Pipe composition, 2 meters of the every root long of microporous pipe, every side 8-9 root are arranged along the cell wall direction of flowing water fish slot, are evenly distributed on flowing water fish slot Two side of bottom.
It is formed preferably, the sewage sucking system is pumped by soil pick-up with guide rail, sewage pipe and electric cabinet, guide rail It is mounted in the waste precipitating collecting tank of fish slot end.
Preferably, the circulating water treatment area also puts one of variegated carp, silver carp, channel catfish or a variety of in a suitable place to breed; 50 ~ 70 tails of variegated carp unit stocking rate/mu, 90 ~ 120 tails of silver carp unit stocking rate/mu, channel catfish unit stocking rate 50 ~ 70 Tail/mu.
The present invention due to the adoption of the above technical solution, has the characteristics that following:
1, improve and control breeding environment, delay or reduce the generation of culture of Penaeus vannamei disease, reduce drug It uses, improves the quality safety of aquaculture product.The present invention has cultivated the fish of three different cultivars using fish slot respectively, Circulating water treatment area low-density has cultivated regrowth hair Penaeus Vannmei, is configured with filter-feeding and food property fish species, utilizes fish slot Grass carp carburetting is cultivated, big pond mechanical enhancement, biological cleaning, flowing water circulation carry out control nitrogen, pass through the phase of small size pond and big water body Mutually cooperate and cooperate with, realizes recycling for breeding water.
2, emission reduction can be achieved and recycle, system is provided with sewage sucking system in continuous-flow type sink end, feeding for collecting The excreta of breeding fish.By precipitating, aeration and biological cleaning, its sediment of turning waste into wealth can be used as vegetables, melon and fruit or nursery stock The fertilizer of plantation, supernatant water is Ke Xunhuanliyong, can both solve the self-pollution of aquaculture, moreover it is possible to solve water resource waste etc. and ask Topic realizes cultivation tail water " zero-emission ".
3, it reduces resource consumption, raise labour productivity, also to provide development space using technology of Internet of things in next step. System use extruding buoyancy feed, be conducive to nutritional ingredient digestibility and utilization, reduce feed scatter and disappear and residual, resource can be reduced Consumption.The daily managements such as feeding, disinfection, the fishing of fish slot are easy to operate, can improve labor efficiency, and reduce labour cost.If The Internet of things system such as water quality on-line system, automatic feeding system, fishing system, video monitoring system, automatic control system are loaded, Breeding production operation automation, production operation digitlization can be achieved, realize that the accurate aquaculture management in pond and aquatic product quality are whole Monitoring management.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of circulation flowing water fish farming system of the invention.Appended drawing reference is as follows in Fig. 1: at 1 recirculated water Area is managed, 2 flowing water fish slots, 3 areas Qian Lanxia, 4 push away water ooxygenation facility, 5 precipitating collecting tanks, 6 areas Hou Lanxia, 7 surge machines, 8 Waterwheel-types Aerator, 9 operating spaces.
Fig. 2 ~ Fig. 4 is each fish slot breed variety 4-11 month growing state figure.
Specific embodiment
Materials and methods
1.1 test site
Test carries out in ten thousand rank of nobility agricultural development Co., Ltd cultivation base of Hangzhou that ten workshop sections are enclosed tideland for cultivation in inhabitants in Xiaoshan, Base is the nuisanceless aquatic products place of production in Zhejiang Province, and traffic convenience, illumination is sufficient, and bed mud is mainly light salty sand, breeding water source The 12 dam Yokogawas in farm southern side, pH value 8.2~8.7, salinity 1 ‰~2 ‰ are good into drainage condition.
1.2 circulation flowing water cultivating system construction
System is made of culture of Penaeus vannamei area (circulating water treatment area) and flowing water fish slot, precipitating collecting pit etc..
1.2.1 pond is built
Pond is built by application garden earth excavation, East and West direction, long 184 meters, 123 meters wide, slope ratio 1:1.5, soil The ridge, bottom of pond face is substantially in same level, and 2.2 meters of Chi Shen, 32.9 mu of area.
1.2.2 flowing water culture unit
In pond, long side builds circulation flowing water cultivating system convenient for the side (east side) that traffic enters and leaves, that is, builds intensive culture fish Slot, waste settling zone and block shrimp fence.
Wherein fish slot and waste precipitate collecting tank, and the main parts such as bottom, partition wall are reinforcing bar brick mix structure, build up rule For the identical three fish slots of lattice for cultivating food fish, every is long 23 meters × 2.2 meters 5 meters wide × high, the practical cultivation water of monomer Body about 165m3;15 meters long × wide by 3.0 × high 2.2 meters of waste precipitating collecting tank (, length contour with fish slot is built in fish slot end For the beam overall of 3 fish slots), the water inlet of fish slot is made with the materials such as water outlet both ends and precipitating collecting tank metal mesh sheet, polyethylene mesh sheet Fish screen.
Shrimp fence is supported, respectively at fish front of the slot, each 10 meters of precipitating collecting tank end, mesh is the polyethylene of 60 mesh by piling Mesh sheet is fixed to be made into " [ " and " ] ", and type blocks shrimp net, with collecting tank with width, enters fish slot to prevent shrimp.The signal of pond horizontal layout Figure is shown in Fig. 1.
The configuration of 1.3 system equipments
1.3.1 three fish slot slots air lift aeration system: are mounted on by tracheae series winding correspondence by 3 sets of gas stripping type ooxygenation facilities At 1 meter of body front end, microporous pipe that every set gas stripping type ooxygenation facility is evenly distributed by 1 2.2kg whirlpool air blower, 20 cm of spacing 4 micro-pore aeration units of the m of 1.2m × 1.05 are made and with micro-pore aeration unit in 450Angle setting monolithic specification be 1.3m × 5.0m pushes away water deflector and bracket, pontoon etc. and collectively constitutes, and water exchange capacity is 1000 cubes ms/h, is used for fish Slot pushes away water and oxygenation etc..
1.3.2 bottom aeration system: being made of 1 3.0 kw Roots blower and inflation general pipeline, branch pipe and microporous pipe etc., micro- Every 2 meters of root long of hole pipe, every side 8-9 root are arranged along cell wall direction, are evenly distributed on two side of fish trench bottom, fish slot rear end 6-8 is not set Microporous pipe, for auxiliary oxygenation etc..
1.3.3 it sewage sucking system: is made of 1 3kw soil pick-up pump and guide rail, sewage pipe, electric cabinet etc., is mounted on fish In the waste precipitating collecting tank of slot end, for periodically absorbing cultured fishes excreta.
1.3.4 pond circulation water system: 4 1.5kw waterwheel aerators by pond quadrangle water flow node is arranged in, 2 0.75kw surge machines and fish slot in the middle part of pond is arranged in 8 1.5kw paddle aerators being uniformly arranged in pond 3 air lift aerators of one end collectively constitute, and make water in " returning " font directed flow when starting.
1.3.5 it auxiliary equipment: barrier net: is clipped in stainless steel mesh sheet is taut on filter screen frame, is separately mounted to water on fish slot In the slotting grain of mouth, collector nozzle and precipitating collecting tank;Anti-collision net: polyethylene mesh sheet is stretched tight and is clipped in filter screen frame, is mounted on water on fish slot Mouthful.Mesh size is selected according to the specification for putting fingerling in a suitable place to breed.Other auxiliary equipment, with plank, cement plate or steel plate etc. in water Front and back aisle is additionally arranged on slot, is equipped with power and is greater than 30kw diesel-driven generator 1 in case power failure is used.
By the setting of forming a complete and comprehensive system for collecting real estate fees of related fishery machinery, to reach the water body level and upper and lower level of cultivating pool and sink Exchange flowing.
1.4 sample acquisition and measurement
High density fish culture in running water is carried out using fish slot, the rest part in pond carries out at culture of Penaeus vannamei and recirculated water Reason.After fingerling, shrimp seedling put stabilization in a suitable place to breed, main feeding kind growing state sampling Detection is monthly carried out, a production cycle terminates Yield, the output value, survival rate statistics and production, growth performance analysis are carried out afterwards.Penaeus Vannmei presses the yield and sale feelings of regrowth hair Condition counts yield and the output value respectively.
1.5 culture experiment
1.5.1 preparing before cultivation
Fish slot, waste settling zone are carried out by design requirement, cyclic cultures system construction and the pond transformation such as block shrimp net, 2 The moon completes civil engineering, facilities and equipment installation is completed at the beginning of 3 months, late March pond intakes to 1.5 meters of the depth of water, and carries out equipment tune Examination impregnates breeding facility with dealkalize.Full pool spilling head disinfection is carried out with bleaching powder 15kg per acre at the beginning of 4 months, after a week to lack of toxicity After can put fishes and shrimps.
1.5.2 fishes and shrimps are put in a suitable place to breed
Three fish slots cultivate black carp, grass carp and seven-star perch respectively, put completion at the beginning of 5 months in a suitable place to breed;On the south culture of Penaeus vannamei area Appropriate intercropping flower silver carp and fingerling is put in a suitable place to breed in channel catfish, April~May based on penaeus vannamei cultivation;Penaeus Vannmei divides regrowth hair Cultivation, puts in a suitable place to breed through the thick shrimp seedling of greenhouse mark, puts in a suitable place to breed first batch of mid-May, and the listing of late June harvesting, second batch of late July put It supports, the listing of harvesting mid-November.Specific breed variety, stocking size and quantity are shown in Table one.
One leg Shrimp Litopenaeus vannamei Culture Raceway-type Ponds pool inner recirculation flow water cultivating system kind of table puts table in a suitable place to breed
Note: first batch of 6.18 harvesting of Penaeus Vannmei listing, second batch of 11.20 harvesting of Penaeus Vannmei listing.3 fish slots After 11.28 harvestings, remaining is listed on a small quantity and is transferred to pond.
1.5.3 feeding management
1.5.3.1 feedstuff feeding
1, No. 2 fish slots feed bean pulp type black carp buoyancy expanding feed and grass carp buoyancy expanding feed, crude protein content respectively Respectively 32%, 36%, No. 3 fish slots feed the fish buoyancy expanding feed that crude protein content is 44%.Cultivate April~5 early period Month, daily 6:00,12:00,18:00 are respectively fed once in fish slot upstream, and daily 6:00,18:00 are respectively fed once from June.Just After normal material feeding, feeding rate is the 1.5%~2% of each fish slot memory pool amount, and feeding rate is deposit pool amount 2.5%~3% from July.Suitably Speed is fed in control, does not drift out fish slot with feed as degree (when early period, food was not prosperous, the water surface sets fly rod obstruction in the middle part of fish slot), base This control is eaten up in 10 minutes.The adjustment in time such as specific view weather, water temperature, food and fish body activity condition.
Culture of Penaeus vannamei then presses Penaeus Vannmei pond cultivation technology regulation enforcement, feeds the dedicated feeding of Penaeus Vannmei Material, feeding rate is deposit pool shrimp weight 2% or so, along pond surrounding uniformly dissipate throw, in time check food situation, cultivate early period with It eats up within 1.5 hours or so as degree, to eat up in 1 hour as degree after cultivation one month.Primary feeding amount is generally adjusted weekly, is increased Dosage is the 10%~20% of last feeding period feeding amount, if any the fishing listing of commercial sized prawn specification is partially reached, suitably reduces feeding Expect feeding volume, the amount of reduction generally catches out the 2% of shrimp weight.Specific view weather, water temperature, food and fish body activity condition etc. and When adjust.
1.5.3 daily management
Water level control: cultivation keeps 1.5 meters of the fish slot depth of water early period, gradually increases water level from June, keeps the fish slot depth of water 1.6 Rice~1.7 meters after second batch of shrimp seedling of late August puts one month in a suitable place to breed, increases water level to pond peak level, i.e. water is 1.8 meters deep ~2.0 meters.
Fish slot oxygenation: after fingerling stocking, gas stripping type oxygenation, which pushes away wetting system 24 hours, uninterruptedly starts, and cultivation initial stage starts 1 Set starts 2~3 sets depending on weather conditions from June;It opens within bottom oxygen increasing equipment 24 hours, cooperation pushes away wetting system and smoothly pushes away excreta Collecting tank is precipitated to fish slot end, to guarantee pond waters flowing and high dissolved oxygen state.
Sink soil pick-up: 1 hour or so soil pick-up is secondary after feeding intake sooner or later daily early period, and each soil pick-up about 3.5 minutes, until being sucked out Sewage is homochromy with water;Middle and later periods soil pick-up number increases to 3 times~5 times, or extends the soil pick-up time 7 minutes every time~10 minutes, Specifically depending on sucking out sewage situation.
The oxygenation of culture of Penaeus vannamei area: 1/2 oxygen increasing equipment is opened in cultivation early period, fine day noon and after midnight to morning when Duan Bikai gradually increases startup equipment or extends the available machine time from June, evening standard-sized sheet.After first batch of shrimp harvesting listing below the moon to 7 Ten days, second batch of shrimp seedling was put in a suitable place to breed just, opened 1/2 oxygen increasing equipment in turn, and cultivation gradually increases startup equipment or extends booting after 1 month Time, evening standard-sized sheet.Specific booting sees weather, deposits pool amount situation.
Regulating and controlling water quality: chlorine dioxide, bromochloroin or quick lime etc. were used alternatingly every 20 days or so and carries out water body disinfection; Water transfer, which is carried out, using a saccharomycete or EM bacterium or amino acid etc. weekly changes water.Not medication in fish slot.
Patrol the pool: accomplish it is early, in, patrol the pool for night 3 times, check food, change of water quality, fishes and shrimps activity condition etc., find the problem and When take measures.Heavy rain or muggy weather reduce feeding amount, and start oxygen increasing equipment in time.
1.5.4 fishing listing
Culture of Penaeus vannamei area (circulating water treatment area): first batch of cultivation listing from June 18, with cage trapping and skewer Net shrimping;Second batch of cultivation, which was carried out to catch to mid-October since late August, to be stayed greatly small, and November 20 has all caught listing.Fish Because market conditions are lower, pondfish slot will also be extended for black carp, grass carp and white bass in slot, be sold on a small quantity after November 18 harvesting, Pond is transferred to temporarily to support.
As a result with analysis
2.1 yield and output value situations
Test produces 49.18 tons of fishes and shrimps altogether, converts into per mu yield 1494.8kg, wherein black carp 9869kg, 18598 kg of grass carp, seven Star perch 5557kg, Penaeus Vannmei 6919kg, flower silver carp 4514kg, channel catfish 3721kg realize the gross output value 96.96 ten thousand Member, 29470 yuan of average yield per mu value.Cultivation output situation is shown in Table 2.
Table 2: cultured output output value situation table
2.2 performance analysis
Cultivation materials cost is mainly made of, seed, feed, the pool rents, the electricity charge, labor wage and fishing medicine disinfectant etc., is total to 55.50 ten thousand yuan are counted, converting into mu cost is 1406.1 yuan.In every cost payout, feed and seed cost proportion are maximum, Respectively 37.5% and 33.0%.See Table 3 for details for materials cost.96.96 ten thousand yuan of the gross output value of test, 55.5 ten thousand yuan of total materials cost.It is real Existing 41.46 ten thousand yuan of gross profit, average 12602 yuan of mu profit.
Table 3: breeding production materials cost situation table
Amount units: member
2.3 fish slot fish body growing state
Each fish slot breed variety 4-11 month growing state is shown in Fig. 2, Fig. 3, Fig. 4, every cube of black carp, grass carp and seven-star perch water body Per unit area yield is respectively 59.8kg, 112.7kg and 33.7kg, wherein being up to 224.1 times with seven-star perch weight gain multiple, grass carp takes second place 7.1 times, black carp it is 2.2 times most slow, black carp, grass carp and seven-star perch be suitable for pond inner recirculation flow water cultivation.Why black carp grows Speed is slower, is to be put into fish slot to feed based on sinking feed due to the Black Carp Fingerlings stage and be changed to laundering period ratio after buoyancy feed Longer, Grass Carp Juveniles are that buoyancy feed is cultivated, and are adapted to comparatively fast after being put into fish slot, seven-star perch kind is tamed with floating compound feed It is put in a suitable place to breed after net cage mark is thick again afterwards, culture efficiency is preferable.
2.4 Penaeus Vannmei growing states
Regrowth hair Penaeus Vannmei yield is respectively 4352kg, 2567kg, and average yield per mu is 132.3 kg, 78.0 kg, commodity Shrimp average size is 8.3g, 17.2g, survival rate 45.2%, 73.6%.

Claims (6)

1. a kind of method of circulation flowing water fish farming system cultivation Penaeus Vannmei, the circulation flowing water fish farming system are arranged in pond It is interior, including circulating water treatment area and flowing water fish slot, it is characterised in that: shrimp is blocked before being respectively arranged in front end, the rear end of flowing water fish slot Area and the area Hou Lanxia, the area Qian Lanxia and the area Hou Lanxia be respectively polyethylene mesh sheet it is fixed be made into " [ " and " ] " type block shrimp net, and It is provided in the area Qian Lanxia and pushes away water ooxygenation facility, pushing away water ooxygenation facility includes 3 sets of gas stripping type ooxygenation facilities, the area Hou Lanxia and flowing water Precipitating collecting tank is provided between fish slot, precipitating collecting tank is provided with sewage sucking system, and two side of bottom of flowing water fish slot is provided with bottom Aeration system, the setting of circulating water treatment area covers oxygen increasing equipment;The flowing water fish slot include three intensive culture fish slots, three The water inlet of intensive culture fish slot is respectively arranged with fish screen with water outlet both ends, cultivated respectively in intensive culture fish slot black carp, Grass carp and seven-star perch, put completion in a suitable place to breed at the beginning of 5 months, black carp unit stocking rate is 10 ~ 20 tails/cubic meter, and grass carp unit stocking rate is 20 ~ 30 tails/cubic meter, seven-star perch unit stocking rate are 40 ~ 50 tails/cubic meter;Circulating water treatment area cultivates Penaeus Vannmei, described Penaeus Vannmei divide regrowth hair to cultivate, put in a suitable place to breed through the thick shrimp seedling of greenhouse mark, first batch of mid-May puts in a suitable place to breed, in late June harvesting City, second batch of late July put in a suitable place to breed, and harvesting mid-November listing, first batch of unit stocking rate is 2 ~ 2.5 ten thousand tails/mu, first batch of list Position stocking rate is 1.5 ~ 20,000 tails/mu;
Cultivate black carp, the fish slot of grass carp feeds bean pulp type black carp buoyancy expanding feed and grass carp buoyancy expanding feed, thick egg respectively Bai Hanliang is respectively 32%, 36%;The fish slot of cultivation seven-star perch feeds the fish buoyancy expanding feed that crude protein content is 44%; Early period is cultivated, daily 6:00,12:00,18:00 are respectively fed once in fish slot upstream, and daily 6:00,18:00 respectively feed one from June It is secondary;After normal material feeding, feeding rate is the 1.5%~2% of each fish slot memory pool amount, and feeding rate is deposit pool amount 2.5%~3% from July; Speed is fed in control, does not drift out fish slot with feed as degree, control is eaten up in 10 ~ 15 minutes;
Culture of Penaeus vannamei feeds Penaeus Vannmei special feed, and feeding rate is deposit pool shrimp weight 1.5 ~ 2.5%, along pond Surrounding, which uniformly dissipates, throws, and checks food situation in time, cultivates and was eaten up with 1.0 ~ 2.0 hours as degree early period, small with 1 after cultivation one month When it is interior eat up for degree;Primary feeding amount is adjusted weekly, and incrementss are the 10%~20% of last feeding period feeding amount;
Water level control: cultivation keeps 1.5 meters of the fish slot depth of water early period, gradually increases water level from June, keep 1.6 meters of the fish slot depth of water~ 1.7 meters, after second batch of shrimp seedling of late August puts one month in a suitable place to breed, increase water level to pond peak level, i.e. water deep 1.8 meters~2.0 Rice;
Fish slot oxygenation: it after fingerling stocking, uninterruptedly starts within gas stripping type ooxygenation facility 24 hours, cultivation initial stage starts 1 set, from June 2~3 sets are started depending on weather conditions;It opens within bottom oxygen increasing equipment 24 hours, cooperation pushes away water ooxygenation facility and is smoothly pushed into flow by excreta The precipitating collecting tank of water fish slot end;
Precipitate collecting tank soil pick-up: 1 hour soil pick-up is secondary after feeding intake sooner or later daily early period, each soil pick-up 3 ~ 4 minutes, until sewage is sucked out It is homochromy with water;Middle and later periods soil pick-up number increases to 3 times~5 times, or extends the soil pick-up time 7 minutes every time~10 minutes;
The oxygenation of culture of Penaeus vannamei area: early period is opened 1/2 oxygen increasing equipment, fine day noon and after midnight must to the period in morning in cultivation It opens, startup equipment is gradually increased from June or extends the available machine time, evening standard-sized sheet;To late July the after the listing of first batch of shrimp harvesting Regrowth hair shrimp seedling is put in a suitable place to breed just, opens 1/2 oxygen increasing equipment in turn, and cultivation gradually increases startup equipment or extends the available machine time after 1 month, Evening standard-sized sheet;
Regulating and controlling water quality: chlorine dioxide, bromochloroin or quick lime was used alternatingly in circulating water treatment area every 20 days and carries out water body Disinfection;Water transfer, which is carried out, using a saccharomycete or EM bacterium or amino acid weekly changes water, not medication in flowing water fish slot.
2. a kind of method of circulation flowing water fish farming system cultivation Penaeus Vannmei according to claim 1, it is characterised in that: It pushes away water ooxygenation facility and three 1 meter of fish slot groove body front ends is mounted on by tracheae series winding correspondence by 3 sets of gas stripping type ooxygenation facilities, often It covers gas stripping type ooxygenation facility and is made the 4 of the m of 1.2m × 1.05 by the microporous pipe that 1 whirlpool air blower, 20 cm of spacing are evenly distributed A micro-pore aeration unit and with micro-pore aeration unit in 45° angle setting monolithic specification be 1.3m × 5.0m push away water deflector, Bracket and pontoon collectively constitute, and water exchange capacity is 1000 cubes ms/h.
3. a kind of method of circulation flowing water fish farming system cultivation Penaeus Vannmei according to claim 1, it is characterised in that: The oxygen increasing equipment in circulating water treatment area includes the respectively arranged waterwheel aerator of pond quadrangle water flow node, and in the middle part of pond 8 paddle aerators and 2 surge machines being arranged.
4. a kind of method of circulation flowing water fish farming system cultivation Penaeus Vannmei according to claim 1, it is characterised in that: Bottom aeration system is made of sequentially connected Roots blower and inflation general pipeline, branch pipe and microporous pipe, 2 meters of the every root long of microporous pipe, Every side 8-9 root is arranged along the cell wall direction of flowing water fish slot, is evenly distributed on two side of flowing water fish trench bottom.
5. a kind of method of circulation flowing water fish farming system cultivation Penaeus Vannmei according to claim 1, it is characterised in that: Sewage sucking system is pumped by soil pick-up and is formed with guide rail, sewage pipe and electric cabinet, and guide rail is mounted on the waste of fish slot end It precipitates in collecting tank.
6. a kind of method of circulation flowing water fish farming system cultivation Penaeus Vannmei according to claim 1, it is characterised in that: Also put one of variegated carp, silver carp, channel catfish or a variety of in a suitable place to breed in circulating water treatment area;50 ~ 70 tail of variegated carp unit stocking rate/ Mu, 90 ~ 120 tails of silver carp unit stocking rate/mu, 50 ~ 70 tails of channel catfish unit stocking rate/mu.
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