CN106538439B - Freshwater shrimp breeding integration cultural method - Google Patents

Freshwater shrimp breeding integration cultural method Download PDF

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CN106538439B
CN106538439B CN201610966374.8A CN201610966374A CN106538439B CN 106538439 B CN106538439 B CN 106538439B CN 201610966374 A CN201610966374 A CN 201610966374A CN 106538439 B CN106538439 B CN 106538439B
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shrimp
water
pond
feed
freshwater
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CN106538439A (en
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梅肖乐
陈焕根
官德保
王苗苗
邹宏海
冯冰冰
张敏
芦光宇
方南娟
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Fishery Technology Popularization Center Of Jiangsu Province
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/163—Nitrates
    • 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
    • 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
    • Y02A40/818—Alternative feeds for fish, e.g. in aquacultures
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biotechnology (AREA)
  • Botany (AREA)
  • Fodder In General (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The present invention provides a kind of freshwater shrimp breeding integration cultural method, is, by setting up the net cage of suitable size, mesh specification, temporarily to support the mode through reaching the shrimp with ovums of certain phase in freshwater shrimp growing pond in net cage, carry out the breeding of freshwater shrimp seed with pond.The control of seed time is dissipated by artificial shrimp with ovums, the effective guarantee uniformity and specification of shrimp seed rearing, simultaneously, the technical measures such as reasonable feeding management, regulating and controlling water quality and daily management are taken, shrimp seed rearing is carried out with pond and is formed at shrimp, realize freshwater shrimp breeding integration cultivation, reduce the cost of cultivation, labor intensity is reduced, the big specification freshwater shrimp ratio formed is promoted, to realize the raising of shrimp culture benefit.Advantages of the present invention has the freshwater shrimp neat specification of breeding；The more traditional cultivation of the big specification freshwater shrimp ratio formed is high；The labor cost of shrimp culture is being reduced without sediment upturning for same pond since freshwater shrimp breeds and cultivates；For breeding close shrimp can harvesting recycling, the rate of recovery is very high, reduces the cost of breeding production.

Description

Freshwater shrimp breeding integration cultural method
Technical field
The technical program belongs to technical field of aquaculture, specifically a kind of freshwater shrimp breeding integration cultural method.
Background technique
In the prior art, the cultivation of many aquatic products then is sent seedling to another using first breeding in freestanding environment It is cultivated in freestanding environment.Two environment are not interfere with each other mutually, and breeding and cultural method are mutually indepedent, are independent of each other.Such as freshwater shrimp, it supports Growing the general view of personnel is, breeds if launching oogenesis parent shrimp with regard to pond, directly forms, although simple and easy, its low output And it is unstable, main cause is that young survival rate is low, and usually mostly for the same pool, is unable to control density, and blindness is big in management, as a result Specification is irregular, and overall less than normal, listing rate is low.Therefore, young shrimp is bred using special pond, then put in a suitable place to breed according to plan.Some aquatic products are ground Study carefully worker to think, on the basis of aforementioned cultural method, after catching at shrimp, directly puts son in a suitable place to breed in growing pond set shrimp summer of raising an infant Shrimp, until autumn oogenesis breeds.After incubating children, fishing reduces density, at shrimp conducive to the growth of juvenile prawn in pond.Juvenile prawn is overwintering Giving over to next spring puts in a suitable place to breed.
Currently, the major technique mode breeding of shrimp culture separates, i.e., shrimp seedling Propogation and culture is carried out in special pond, after be transferred to special pond Carry out into shrimp aquaculture, which is the uniformity for improving shrimp seedling and the survival rate of nursery, to guarantee shrimp culture Commercial specification and yield.But needed from nursery pond sediment upturning to aquaculture pond in entire breeding process, existing main problem are as follows: increase The labor cost of shrimp culture；Increase the damage of shrimp seedling；The shrimp with ovums quantity that breeding shrimp seedling uses is more, and breeding terminates The shrimp with ovums rate of recovery is low afterwards, increases aquaculture cost indirectly；Due to using special pond shrimp seedling Propogation and culture, the pond quantity needed compared with It is more, virtually increase pond cost.In addition, in shrimp seedling reproductive process, due to determining that shrimp with ovums dissipates seed situation difficulty in time, usually It is to be estimated according to cultivation experience, increases the uncertainty of shrimp seed rearing, meanwhile, it is influenced by the shrimp with ovums rate of recovery is low, portion Disperse seed time slower shrimp with ovums and dissipate seed still in pond, reduce the uniformity of shrimp seed rearing, to influence into shrimp aquaculture Specification and yield.
Summary of the invention
The invention aims to solve problems of the prior art, the present invention proposes a kind of freshwater shrimp breeding integration Cultural method reduces shrimp culture cost, labor intensity, promotion by realizing the breeding and cultivation of freshwater shrimp in same pond The big specification shrimp ratio of freshwater shrimp and culture efficiency.It is specific as follows:
A kind of freshwater shrimp breeding integration cultural method, step include:
1) pond prepares:
1.1) pond condition:
Pond area is advisable with 10 mu or so of rectangle pond.Pond slope ratio is 1:2~2.5, and pond bottom mud is deep Degree is no more than 20cm；
1.2) launch the preparation of shrimp with ovums: the first tenday period of a month in May put when average temperature >=20 DEG C and after stablize in shrimp with ovums 10d~15d before supporting selects fair weather, and pond, which intakes, reaches 10cm~15cm to water level；Every 667m2With containing effective chlorine 30% Bleaching powder 6kg~8kg clean up the pond；
Bleaching powder is cheap as one kind, and the fungicide of high-efficiency broad spectrum is widely applied, shrimp ponds in aquaculture production Cleaning up the pond is considered as one of the measure for cutting off the infection sources.Commercially available bleaching powder is the mixed of calcium hydroxide, calcium chloride and calcium hypochlorite Object is closed, main component is calcium hypochlorite Ca (ClO)2, available chlorine content is 30%~38%.For disinfection of cleaning up the pond, effective chlorine Content, which reaches 30%, can meet use.
In the technical program, every 667m2It is cleaned up the pond with bleaching powder 6kg~8kg containing effective chlorine 30%, chlorine residue is applied in water Declined to a great extent after bleaching powder 6h to 0.5mg/L or so, drop to 0.1mg/L after 1 week hereinafter, pH value then slightly increases, pH value by It tends to be steady after 8.29 to 8.56,2d variation (8.30 or so), this is because bleaching powder main component is Ca (ClO)2、Ca(OH)2 Deng in alkalinity after hydrolysis, but water has caused by certain resiliency again.Since bleaching powder has certain oxidisability, water is applied After body in addition to it can kill biology, abiotic organic matter, reducing substances in also oxidable water slightly have COD, ammonia nitrogen content It reduces.The effect for disinfection of cleaning up the pond is not achieved lower than 6kg~8kg for amount of application, and application is excessive, degrades, aoxidizes, is restored to maintenance level Overlong time, influence subsequent cultivation progress.
It cleans up the pond after completing 3d~4d, detoxifies pond.Antidote can select Wuxi to moisten the limited public affairs of health biotechnology The removing toxic substances bottom of department is peaceful, and usage amount is 1kg~1.5kg/667m2。
Suitable antidote can quickly be complexed, decompose organic impurities in water body, and bottom of pond is made to become clearly, to have water quality Preferable adjusting, catharsis, can be effectively reduced the residual toxin of heavy metal, disinfectant, reduce in residual disinfectant and pond Organic impurities is conducive to the hatching rate and weed survival rate that improve fertilized eggs for putting the influence of shrimp with ovums in a suitable place to breed.
1.3) shrimp nest is manufactured
Detoxify after operation 1d, start to plant water plant (water plant is the water plants such as hydrilla verticillata)；Water plant, which is planted, with bunch planting is It is main；The interval 4~7m is kept between water plant clump, does not plant water plant within the scope of pool side 3m；
After the completion of plantation, agent of growing grass is applied.Agent of growing grass can select the long root of Wuxi Run Kang Bioisystech Co., Ltd prosperous Careless precious, usage amount is 500g~800g/667m2。
Application grow grass agent main purpose be promote plantation water plant take root and fast-growth, prevent because plantation after water plant root system It is too short, and there is phenomena such as water inlet easily floats, is dead.It can as early as possible be numerous in addition, shortening growth time by applying agent of growing grass That grows freshwater shrimp seed and cultivation out provides good sheltered situation at shrimp shelling, growth, to improve seed rearing survival rate With the yield at shrimp aquaculture.
1.4) it intakes
Shrimp with ovums puts preceding 3d~5d in a suitable place to breed, and pond is added water to water level and reaches 50cm~70cm；
1.5) basal dressing
After water inlet, that is, fermented decomposed organic fertilizer is applied as base fertilizer, meanwhile, apply biological organic fertilizer；
Under normal circumstances, the squab I phase zoea of freshwater shrimp is using itself yolk as nutrition, the molt metamorphosis after 2~3 days For the II phase young, start with algae, wheel animalcule etc. to be food.After fertilising 5 days, positive value wheel animalcule peak period can provide for the young and fill The agreeable to the taste bait of foot, is greatly improved the survival rate of young opening stage.
Therefore, after water inlet, that is, fermented decomposed organic fertilizer is applied as base fertilizer, organic fertilizer is waved mainly as depot fertilizer distribution Effect, general every 667m2100~150kg of application can preferably keep the fertility in pond.Water-activating material selects biological organic fertilizer, to the greatest extent Amount uses chemical fertilizer not in hatchery, because chemical fertilizer effect is strong, improper use can cause " turning water ", influence shrimp seedling Survival rate.
Biological organic fertilizer biological organic matter rich in and a large amount of beneficial rhzomorphs, can obviously increase breeding water body after application Active organic matter content improves water quality and substrate, balances water body algae phase and bacterium phase, improves breeding water body primary productivity. The amino acid bio peptide fertilizer product of biological organic fertilizer selection such as Wuxi Run Kang Bioisystech Co., Ltd production, the fertilizer have ammonia The ingredients such as base acid polypeptide, immune polysaccharide, algae activity factor, active ferment, microelement can preferably combine the fertilizer of organic fertilizer Point, it can preferably promote the fast-growth for being conducive to the algae and beneficial bacterium such as diatom, by test, general every 667m2Amount of application is 1.0 ~1.2kg, 2~3d water transparence can reach 30cm or so.
1.6) installation of ooxygenation facility
Micro-pore oxygenation facility is installed, it is ensured that pond oxygen demand；
2) shrimp with ovums is put in a suitable place to breed
2.1) temporarily feeding net cage
Net cage volume is 19~26 cubic metres, wherein net cage height is not less than 1 meter；Net cage is coated by screen cloth, screen cloth it is close Degree is 8~13 meshes；Each angle of net cage is equipped with nettle, is installed with gang rope on net cage；
2.2) it the selection of shrimp with ovums and puts in a suitable place to breed
The shrimp with ovums of selection requires the long 4.5cm or more of body, and constitution is stout and strong, and no wound is disease-free, and rapidly, spring is strong for swimming；
The embryonic development for the shrimp with ovums requirement ovum grain put in a suitable place to breed in net cage is synchronous, as taupe and has eye using the ovum grain of oogenesis Subject to point；
Shrimp with ovums stocking rate is 0.4kg~0.5kg/667m2；
Shrimp with ovums is placed in net cage, and discharge water plant inside net cage, and water plant injected volume covers the 1/3 of net cage area；
2.3) daily management
To inflating in net cage, keep the dissolved oxygen in net cage in water body in 5g/mL or more；
3) shrimp seed rearing
3.1) harvesting of close shrimp
The scattered seed situation of observation shrimp with ovums daily, when the shrimp with ovums for being more than 4/5 is completed to dissipate seed, then by all blueness in net cage Shrimp harvesting, and remove the net cage of erection；
3.2) feeding management
With 100 mesh fishing nets, air port carries out diddle-net inspection under pond daily, when discovery first phase zoea in pond Afterwards, start to splash and feed the soya bean slurry for impregnating defibrination；
From there is freshwater shrimp first phase zoea to 10d, full pool spilling head soya-bean milk；
When zoea density reaches 30~40/diddle-net, every 667m20.5~1kg soybean soaking is used daily in area pond Defibrination；Divide 2 full pool spilling heads；Feeding time be morning 8:00~9:00, afternoon 16:00~17:00；
From 10d to 15d, every 667m2The splash daily soya bean dosage of soya-bean milk of area pond increases to 2 kilograms, and day feeds It is secondary, the time be morning 8:00~9:00, afternoon 16:00~17:00；From 15d to 20d, in addition to soya-bean milk of splashing, it is close to daily Evening increases in pool side shoal feeds the dedicated 0# mixed feed of freshwater shrimp that protein content is 40%~42%, and the partial size 0.2mm of feed~ 0.7mm, every 667m2Area pond feeding volume is 0.4~0.55kg；
When shrimp seedling has been grown to 0.6~0.8cm, stopping is splashed soya-bean milk, and feeding freshwater shrimp protein content twice daily is 40% The dedicated 0# mixed feed of~42% freshwater shrimp or the dedicated 1# mixed feed of 38%~40% freshwater shrimp, the partial size of feed be all 1mm~ 1.5mm, 2~3kg/667m of feeding volume2, Feeding time be morning 8:00~9:00, afternoon 16:00~17:00；
In soya-bean milk, the mass ratio of soya bean and soya-bean milk is 1:25；
3.3) water quality management
During nursery, water colour is controlled, transparency control is being not less than 20cm；New water, water quality mistake are filled when water quality overrich It splashes when thin biological organic fertilizer；
Shrimp seedling body is grown to before 1cm, adds within every 7 days the new water of the 5cm depth of water；After shrimp seedling body length is more than 1cm, water is changed within every 7 days The 10cm depth of water；
While adding water or change water, EM bacteria preparation is applied；
After shrimp seedling often takes off a shell, the dedicated ionized calcium 300mL~500mL/667m of aquatic products of splashing immediately2, aquatic products Special electric Solve multidimensional 100g~200g/667m2；
1 substrate modifier of application in every 10 days, usage amount are 100g~300g/667m2；
According to water quality situation, timely and appropriate discovery applies antidote；
By the method for the above water quality management, mainly have the advantage that
1, nursery amount is improved.Nursery only adds water not change water early period, the life because the zoea stage battalion of shrimp seedling swims, and living Kinetic force is weaker, change water will cause shrimp seedling it is a large amount of loss and water body environment vary widely, influence survival rate of seedling, thus It influences indirectly into shrimp aquaculture yield.And by way of adding water, increase pond water, be gradually increased shrimp seedling vegetative activity space, Be conducive to shrimp seedling growth and development, improve the yield of shrimp seedling.
2, promote the development and growth of shrimp seedling.By periodically adding water and changing water, the shelling of shrimp seedling may advantageously facilitate.Generally exist Add water or change water 1d~2d, shrimp seedling just will appear shelling.The dedicated ionized calcium of aquatic products of splashing helps to supplement shrimp seedling shelling and lose It is calcareous, for next time shelling and the fast-growth of shrimp seedling provide safeguard, meanwhile, the addition for being electrolysed multidimensional can effectively prevent shrimp The stress reaction that seedling occurs during shelling.
3, water quality, substrate during stable and guarantee shrimp seed rearing.Addition EM bacteria preparation is for stablizing bacterium phase and decomposing water The substances such as middle ammonia nitrogen, the nitrate generated by soya-bean milk of splashing, feeding；Substrate modifier then preferably improves bottom environment, It dwells the young shrimp environment construction of life for freshwater shrimp from zoea stage metamorphosis to battalion bottom.Antidote is then effectively complexed organic in water body Impurity etc..
By the water quality management measure of above-mentioned seed Propogation and culture, freshwater shrimp seed breeding survival rate can improve to 20%~ 30%.
In due course oxygenation, frequently opens aerator, and encountering muggy weather, nine o'clock to the morning on next day carries out oxygenation at night；Rainy days Daytime will also carry out oxygenation；During high temperature, oxygenation half an hour at noon；
4) at shrimp aquaculture
4.1) feeding management
After shrimp seedling body is long grows to 2cm~2.5cm, the shrimp aquaculture stage is initially entered into；
The dedicated 2# mixed feed of freshwater shrimp that protein content is 36%~38% is fed, feed particle diameter is 1.6mm~2mm, day Feed secondary, feeding every time is the 3%~5% of freshwater shrimp weight；Wherein, 30% is thrown when the morning 7~8, is uniformly shed in apart from pond The pool of 1.5~2m of pool waterside；70% is thrown when afternoon 5~6, is thrown at 1~1.5m of pond waterside；
After October, use the dedicated 3# mixed feed of freshwater shrimp of protein content 36%~38% instead, feed particle diameter be 2.2mm~ 3mm；As water temperature gradually declines, feeding amount is gradually reduced, and feeding amount is subject to the feed fed and is eaten up within 2h；
4.2) water quality management
In breeding process, water transparency is controlled in 40~50cm；It is adjusted by applying fertilizer or applying bacillus subtilis Water transparency；
Every 10d changes a water, and quantity of exchanged water is the 10cm depth of water；After changing water, splash ionized calcium 300mL~500mL/667m2, electricity Solve multidimensional 100g~200g/667m2；1 substrate modifier of application in every 10 days, usage amount are 100g~300g/667m2；According to water Matter situation, applies antidote in due course；
It is substantially similar at the water quality management principle and the water quality management of shrimp seed rearing phase of shrimp aquaculture phase.The main distinction is into shrimp The adjusting of breeding water body transparency, after entering for 9~October as shrimp aquaculture, the sexually matured freshwater shrimp in part just starts oogenesis, dissipates Seed, i.e. " Qiu Fan ".Therefore, water transparency is controlled by applying fertilizer or applying bacillus subtilis in 40~50cm, on the one hand Be able to maintain certain water colour, it is ensured that culturing pool it is salubrious, be conducive to freshwater shrimp healthy growth, on the other hand, can effectively control The problems such as " Qiu Fan " seedling prevents the inhibition occurred by the mass propagation of " Qiu Fan " seedling at shrimp specification, increases breeding feed cost, Effectively improve the ratio of big specification freshwater shrimp.It, generally can big 20% left side of specification freshwater shrimp ratio raising by this management method It is right.
In due course oxygenation, frequently opens aerator, and encountering muggy weather, nine o'clock to the morning on next day carries out oxygenation at night；Rainy days Daytime will also carry out oxygenation；During high temperature, oxygenation half an hour at noon；.
4.3) water plant manages
Pond water plant coverage rate controls the 70% of pool water within area；
4.4) daily management
The pool is patrolled daily morning and evening each 1 time；Measurement pond water temperature, dissolved oxygen each 1 time daily, dissolved oxygen requirement >=5mg/L；
Every 6d~7d surveys ammonia nitrogen, nitrite water quality indicator each 1 time, and ammonia nitrogen, nitrite index request reach fishery water The requirement of matter standard GB11607-92, it is ensured that the stabilization of cultivation water；
4.5) at shrimp harvesting
When shrimp culture specification reaches 150 tails/kg, rises in due course and catch out pond.
Further, in the step 1.3), the interval 6m is kept between water plant clump；
Part water plant is substituted using artificial shrimp nest；Artificial shrimp nest is made of tea tree branch；
Artificial shrimp nest is usually to be conducive to increase freshwater shrimp growth to use as substitution in the insufficient situation of pond water plant Required attachment prevents from causing cultured output to reduce because of water plant deficiency.
In the step 1.4), pond adds the water inlet of water double medium filtration mesh bag made of the bolting silk of 150 μm~180 μm of aperture Filtering；
In the step 1.6), micro-pore oxygenation facility is micro-pore oxygenation machine, and the mesh power of micro-pore oxygenation machine is 0.2KW/ 667m2；
Further, in the step 2.1), temporarily feeding net cage length × width × height specification is 4m × 4m × 1.2m, net cage material Material is the green polyethylene screen cloth of 10 meshes, and the periphery of net cage is installed with gang rope, and nettle for fixing is continued to employ at 8 angles；
Further, in the step 3.2), in soya-bean milk, the mass ratio of soya bean and soya-bean milk is 1:25；
Using aforementioned proportion soya-bean milk the advantages of: first is that can preferably be polished into underflow soya bean dilution mix well；Two It is that the soya-bean milk of this water preferably can uniformly splash to entire pond.
Preferred embodiment 1:
In step 2.2), shrimp with ovums stocking rate are as follows: 0.40~0.42kg/667m2；
In step 3.2)
A, when zoea density reaches 30~40/diddle-net, every 667m2Area pond uses soya bean daily are as follows: 0.5~ 0.6kg；
B, from 15d to 20d, increase and feed the dedicated every 667m of 0# mixed feed of freshwater shrimp2Area pond feeding volume are as follows: 0.4~ 0.48kg；
C, when shrimp seedling has been grown to 0.6~0.8cm, the dedicated 0# special compound feed of freshwater shrimp or 38%~40% freshwater shrimp are fed Dedicated 1# special compound feed；Feeding volume are as follows: 2~2.3kg/667m2；
In the step 4.1)
After shrimp seedling body is long grows to 2cm~2.5cm, the dedicated 2# mixed feed of freshwater shrimp is fed, feeds secondary, throwing every time day Feed is the 3.6%~4.3% of freshwater shrimp weight.
Preferred embodiment 2:
In step 2.2), shrimp with ovums stocking rate are as follows: 0.42~0.46kg/667m2；
In the step 3.2)
A, when zoea density reaches 30~40/diddle-net, every 667m2Area pond uses soya bean daily are as follows: 0.6~ 0.9kg；
B, from 15d to 20d, increase and feed the dedicated every 667m of 0# mixed feed of freshwater shrimp2Area pond feeding volume are as follows: 0.48~ 0.53kg；
C, when shrimp seedling has been grown to 0.6~0.8cm, the dedicated 0# special compound feed of freshwater shrimp or 38%~40% freshwater shrimp are fed Dedicated 1# special compound feed；2.3~2.9kg/667m2；
In the step 4.1)
After shrimp seedling body is long grows to 2cm~2.5cm, the dedicated 2# mixed feed of freshwater shrimp is fed, feeds secondary, throwing every time day Feed is the 4.3%~5% of freshwater shrimp weight.
Preferred embodiment 3:
In step 2.2), shrimp with ovums stocking rate is 0.46~0.5kg/667m2。
In the step 3.2)
A, when zoea density reaches 30~40/diddle-net, every 667m2Area pond uses soya bean daily are as follows: 0.9~ 1kg；
B, from 15d to 20d, increase and feed the dedicated every 667m of 0# mixed feed of freshwater shrimp2Area pond feeding volume are as follows: 0.53~ 0.55kg；
C, when shrimp seedling has been grown to 0.6~0.8cm, the dedicated 0# special compound feed of freshwater shrimp or 38%~40% freshwater shrimp are fed Dedicated 1# special compound feed；Feeding volume is 2.9~3kg/667m2；
In the step 4.1)
After shrimp seedling body is long grows to 2cm~2.5cm, the dedicated 2# mixed feed of freshwater shrimp is fed, feeds secondary, throwing every time day Feed is the 3%~3.6% of freshwater shrimp weight.
Above three scheme is the feedstuff feeding side according to shrimp with ovums stocking rate and each growth period of shrimp seedling depending on specific Method.
The shrimp with ovums stocking rate for putting three above scheme in a suitable place to breed, mainly has the advantage that
(1) more traditional freshwater shrimp nursery uses 6~8kg/667m2Amount be it is low, be effectively reduced freshwater shrimp nursery investment parent Cost；
(2) labor cost and aquaculture cost of shrimp culture are reduced.
Shrimp with ovums stocking rate be detached from three above scheme, will cause shrimp with ovums dissipate seed quantity it is excessive, then the bait that must be put into It certainly will increase, the carrying pressure of water body is also increase accordingly, and is also easy to cause various potential diseases, is on the one hand caused the bait of nursery Investment, water quality management added cost and cost of labor increase, and are on the other hand that the seedling amount brought out has exceeded the pond and can carry Excessive shrimp seedling must then be removed, not only increase cost of labor, also cause shrimp seedling because harvesting is damaged by the amount of subsequent cultivation It loses, increases aquaculture cost indirectly, reduces culture efficiency.Stocking rate be lower than three above range, then be unable to satisfy pond at Seed needed for shrimp aquaculture requires.
Freshwater shrimp nursery zoea stage carries out feeding volume using the preferred soya bean of above three scheme, is able to satisfy the stage Bait supply.Usage amount is detached from three above scheme, be easy to cause nursery water quality organic substance excessive and nursery water quality is caused to be disliked Change, increases regulating and controlling water quality cost, have an effect on freshwater shrimp survival rate of seedling, and then the subsequent yield at shrimp aquaculture of team causes a fixing It rings.
Freshwater shrimp, which is cultivated, enters 15d to 20d, and gradually metamorphosis is to young shrimp for zoea, and from swimming, posture is changed into bottom It dwells, is changed on bait palatability and feeding method, be unable to satisfy son in the soya-bean milk of suspended gel shape in pool water within Therefore the demand of ingesting of shrimp need to start to feed the dedicated 0# mixed feed of freshwater shrimp.Use the preferably dedicated cooperation of above three scheme Feed is fed, and the bait supply in the stage is able to satisfy.Usage amount be detached from three above scheme, be easy to cause feed waste and Water quality deterioration influences freshwater shrimp survival rate of seedling and increases feed cost.
Freshwater shrimp has the characteristic of suitable bore food of preferentially ingesting, after shrimp seedling has been grown to 0.6~0.8cm, Ying Shiliang Increase and throw the dedicated 1# special compound feed of freshwater shrimp, and raise gradually transition from the dedicated cooperation of 0# and make the transition to 1# special compound feed, meets Its requirement to suitable bore food.On feeding volume, the feeding volume of above three scheme can preferably meet the need of ingesting of shrimp seedling It asks.
The freshwater shrimp that above-mentioned freshwater shrimp special feed can produce for Liyang City Jiangsu Guan Gan specific feed Co., Ltd is dedicated to match Close feed, the component content of feed are as follows: crude protein 36%~42%, crude fat 6%~8%, crude fibre 4%~6%, coarse ash 14%~16%, sodium chloride 0.5%~3%, total phosphorus 1%~3%, lysine 2.2~4%, moisture 9%~12%.
The difference of dedicated 0#, 1#, 2# and 3# mixed feed of freshwater shrimp is the partial size of feed granules.The dedicated 0# cooperation of freshwater shrimp is raised Material, partial size 0.2mm~0.7mm of feed, the dedicated 1# mixed feed of freshwater shrimp, the partial size of feed is all 1mm~1.5mm, and freshwater shrimp is special With 2# mixed feed, feed particle diameter is 1.6mm~2mm, and the dedicated 3# mixed feed of freshwater shrimp, feed particle diameter is 2.2mm~3mm.
Technical effect explanation:
Freshwater shrimp breeding integration of the invention cultivates the advantages of more traditional cultivation and includes:
1, the freshwater shrimp neat specification bred；
2, the more traditional cultivation of big specification freshwater shrimp (body length >=4.5cm or more) ratio formed is high, and the big specification of average yield per mu is green 60~65kg of shrimp；
3, since freshwater shrimp breeds and cultivation is reducing the labor cost of shrimp culture without sediment upturning for same pond；
4, for the close shrimp of breeding can harvesting recycling, the rate of recovery is more than 4/5, reduces the cost of breeding production.
Specific embodiment
The technical principle of the technical program and specific steps are further illustrated With reference to embodiment.
Technical principle:
In freshwater shrimp growing pond, by setting up the net cage of suitable size, mesh specification, is temporarily supported in net cage and reached certain The mode of the shrimp with ovums in stage carries out the breeding of freshwater shrimp seed with pond.The control of seed time, effective guarantee are dissipated by artificial shrimp with ovums The uniformity and specification of shrimp seed rearing, meanwhile, the technical measures such as reasonable feeding management, regulating and controlling water quality and daily management are taken, Shrimp seed rearing is carried out with pond and is formed at shrimp, is realized freshwater shrimp breeding integration cultivation, is reduced the cost of cultivation, it is strong to reduce labour Degree, promotes the big specification freshwater shrimp ratio formed, to realize the raising of shrimp culture benefit.
Specific steps are as follows:
One, pond prepares
1, pond condition
Pond area is advisable with 10 mu or so of rectangle pond.Pond slope ratio is 1:2~2.5, and pond bottom mud is deep Degree is advisable no more than 20cm.
2, it cleans up the pond
The first tenday period of a month in May start to carry out the preparation for launching shrimp with ovums when average temperature >=20 DEG C.Shrimp with ovums puts preceding 10d in a suitable place to breed ~15d selects fair weather, pond water inlet 10cm~15cm, every 667m2With bleaching powder 6kg~8kg containing effective chlorine 30% into Row is cleaned up the pond.
It cleans up the pond after 3d~4d, application antidote removing toxic substances, usage amount is 1kg~1.5kg/667m2。
3, water plant is planted
After applying antidote 1d, start to plant the water plants such as hydrilla verticillata, based on bunch planting, keeps 6m left between water plant clump Right septum.Water plant is not planted within the scope of pool side 3m.After finishing grass, agent of growing grass is applied, usage amount is 500g~800g/ 667m2, promote the growth of water plant rhizome.The artificial shrimp nests substitution part water plant such as tea tree branch can also be used.
4, it intakes
Shrimp with ovums puts preceding 3d~5d in a suitable place to breed, and pond is added water to 50cm~70cm, water inlet 150 μm~180 μm of aperture bolting silk Manufactured double medium filtration mesh bag filtering.
5, basal dressing
After water inlet, that is, fermented decomposed organic fertilizer is applied as base fertilizer, every 667m2Apply 100~150kg；Meanwhile it applying Biological organic fertilizer, every 667m2Apply 10~20kg.
6, the installation of ooxygenation facility
Micro-pore oxygenation facility, mesh power 0.2KW/667m are installed2。
Two, shrimp with ovums is put in a suitable place to breed
1, temporarily feeding net cage
Temporarily feeding cage size (length × width × height) is 4m × 4m × 1.2m, and net cage material is the green polyethylene of 10 meshes Screen cloth, the periphery of net cage are installed with gang rope, and nettle for fixing is continued to employ at 8 angles.
2, it the selection of shrimp with ovums and puts in a suitable place to breed
The shrimp with ovums of selection requires the long 4.5cm or more of body, and constitution is stout and strong, and no wound is disease-free, and rapidly, spring is strong for swimming.Temporarily The embryonic development basic synchronization for supporting the shrimp with ovums requirement ovum grain put in a suitable place to breed in net cage, as taupe and has eyespot using the ovum grain of oogenesis It is advisable.
Shrimp with ovums stocking rate is 0.4kg~0.5kg/667m2。
Shrimp with ovums is placed in the net cage being erected in pond in advance, and the water plants such as water peanut, water are placed inside net cage Peanut injected volume is advisable with can cover net cage area 1/3.
3, daily management
The pneumatic head that oxygenation is placed in net cage, keeps the dissolved oxygen in net cage in water body in 5g/mL or more.
Three, shrimp seed rearing
1, the harvesting of close shrimp
The scattered seed situation of observation shrimp with ovums daily can will be in net cage when the shrimp with ovums that discovery is more than 4/5 completes scattered seed All freshwater shrimp harvestings, and remove the net cage of erection.
2, feeding management
Diddle-net inspection is carried out in air port under pond with the 100 mesh circle fishing nets that diameter is 40cm daily, works as Chi Zhongfa After existing first phase zoea, starting to splash feeds the soya bean slurry for impregnating defibrination.From there is freshwater shrimp first phase zoea to 10 days, full pool spilling head soya-bean milk, as the supplement bait of shrimp seedling, when zoea density reaches 30~40/diddle-net, every 667m2 0.5~1kg soybean soaking defibrination is used in area pond daily, wears into soya-bean milk 25kg by 1kg soybean with water, point 2 full pool spilling heads.From 10d to 15d removes every 667m2The soya bean dosage that area pond is fed daily increases to 2 kilograms, from 15d to 20d, except bold and vigorous It spills outside soya-bean milk, also to increase at dusk in pool side shoal daily and feed the dedicated 0# mixed feed of freshwater shrimp that protein content is 40%~42% (partial size 0.2mm~0.7mm), every 667m2Area pond feeding volume is 0.5kg；When shrimp seedling has been grown to 0.6~0.8cm, at this time It no longer splashes soya-bean milk, feeds 0# or the 38%~40%1# (partial size that freshwater shrimp protein content is 40%~42% twice sooner or later daily 1mm~1.5mm) special compound feed, 2~3kg/667m of feeding volume2, vaporous according to shrimp seedling growth, water quality, day during feeding Condition adjusts feeding volume.Day feed it is secondary, the time be morning 8:00~9:00, afternoon 16:00~17:00.
2, water quality management
During nursery, water colour is controlled, transparency is controlled in 20cm or so.New water, mistake can be suitably filled when water quality overrich It suitably splashes when thin biological organic fertilizer.Shrimp seedling body was grown before 1cm, the every 7 days new water of filling 5cm, after shrimp seedling body length is more than 1cm, Change water 10cm within every 7 days.Meanwhile applying the probiotics such as EM bacterium.Dosage is 5kg/667m2.After shrimp seedling often takes off a shell, immediately Splash ionized calcium 300mL~500mL/667m2, electrolysis multidimensional 100g~200g/667m2.1 substrate modifier of application in every 10 days, Usage amount is 100g~300g/667m2.According to water quality situation, timely and appropriate discovery applies antidote.
Application EM bacteria preparation can select the entitled EM bacterium of Jining of Shandong Province Kingsoft bioengineering Co., Ltd to support water treasured product. The dedicated ionized calcium of aquatic products can select entitled quick-acting ionized calcium (aquatic products the is dedicated) products of Nanjing Dun Shi bioengineering Co., Ltd. Aquatic products electrolysis special multidimensional can select the entitled electrolysis multidimensional of Cangzhou Kang Zhuan biofermentation Products Co., Ltd (aquatic products is dedicated) Product.Substrate modifier can select the product of the entitled substrate modifier of Tianjin Chuan Jia Bioisystech Co., Ltd.Antidote The entitled water quality protection antidote product of Wuhan Keyang Biotechnology Co., Ltd. can be selected.
In due course oxygenation, frequently opens aerator, encounters muggy weather and opens aerator nine o'clock at night to the morning on next day.Rainy days Daytime will also open aerator.During high temperature, noon opens aerator half an hour.
Four, at shrimp aquaculture
1, feeding management
After shrimp seedling body is long grows to 2cm~2.5cm, the shrimp aquaculture stage is initially entered into.Feeding protein content is 34% ~36% freshwater shrimp special feed 2# mixed feed (partial size 1.6mm~2mm), feeds secondary day, is fed every time as freshwater shrimp weight 3%~5%.Throw 30% in the morning (when 7~8), uniformly sheds in the pool apart from 1.5~2m of pond waterside；Afternoon (5~6 When) 70% is thrown, it throws at 1~1.5m of pond waterside.Feeding volume adjusts in right amount according to situation of ingesting daily.After October, The freshwater shrimp special feed 3# mixed feed (partial size 2.2mm~3mm) for using protein content 36%~38% instead, with water temperature gradually under Drop, feeding amount gradually reduce, and feeding amount is eaten up within 2h with the feed fed to be advisable.
2, water quality management
In breeding process, water transparency is controlled in 40~50cm as far as possible.According to water colour situation, fertilising in due course or application Bacillus subtilis.Every 10d changes a water, and quantity of exchanged water is the 10cm depth of water.After changing water, splash ionized calcium 300mL~500mL/ 667m2, electrolysis multidimensional 100g~200g/667m2.1 substrate modifier of application in every 10 days, usage amount are 100g~300g/ 667m2.According to water quality situation, antidote is applied in due course.
In due course oxygenation, frequently opens aerator, encounters muggy weather and opens aerator nine o'clock at night to the morning on next day.Rainy days Daytime will also open aerator.During high temperature, noon opens aerator half an hour.
3, water plant manages
Pond water plant coverage rate controls the 70% of pool water within area.It is excessively high and float on water that coverage rate is excessive or water plant is long When face, takes and manually cut off.
4, daily management
The pool is patrolled daily morning and evening each 1 time.Measurement pond water temperature, dissolved oxygen 1 time daily, dissolved oxygen requirement >=5mg/L.Every 6d~ 7d surveys ammonia nitrogen, nitrite etc. water quality indicators 1 time, and ammonia nitrogen, nitrite index request reach water quality standard for fishery (GB11607- 92) requirement, it is ensured that the stabilization of cultivation water.
5, at shrimp harvesting
When shrimp culture specification reaches 150 tails/kg or so, it can rise in due course and catch out pond.
Technical effect explanation:
Freshwater shrimp breeding integration of the invention cultivates the advantages of more traditional cultivation and includes:
1, the freshwater shrimp neat specification bred；
2, the more traditional cultivation of big specification freshwater shrimp (body length >=4.5cm or more) ratio formed is high, and the big specification of average yield per mu is green 60~65kg of shrimp；
3, since freshwater shrimp breeds and cultivation is reducing the labor cost of shrimp culture without sediment upturning for same pond；
4, for the close shrimp of breeding can harvesting recycling, the rate of recovery is more than 4/5, reduces the cost of breeding production.
Freshwater shrimp takes conventional cultivation method to be averaged total output generally in 85kg~105kg/667m2, (body is long for big specification freshwater shrimp >=4.5cm or more) accounting be generally 30%~40%, 3000 yuan of aquaculture cost~3500 yuan/667m2, culture efficiency 3500 Member~5000 yuan/667m2；
And freshwater shrimp breeding integration cultural method is taken to be averaged total output generally in 150kg~165kg/667m2, big specification Freshwater shrimp accounting be 50%~60%, 2500 yuan~3000 yuan of aquaculture cost, 8000 yuan~10000 yuan of culture efficiency.

Claims (7)

1. a kind of freshwater shrimp breeding integration cultural method, it is characterized in that step includes:
1) pond prepares:
1.1) pond condition:
Pond area is advisable with 10 mu or so of rectangle pond；Pond slope ratio is 1:2~2.5, and pond bottom mud depth is not More than 20cm；
1.2) preparation of shrimp with ovums: the first tenday period of a month in May is launched, when average temperature >=20 DEG C and after stablize, before shrimp with ovums is put in a suitable place to breed 10d~15d selects fair weather, and pond, which intakes, reaches 10cm~15cm to water level；Every 667m2With the bleaching containing effective chlorine 30% Powder 6kg~8kg cleans up the pond；
It cleans up the pond after completing 3d~4d, detoxifies pond；
1.3) shrimp nest is manufactured
Detoxify after operation 1d, starts to plant water plant；Water plant is planted based on bunch planting；The interval 4~7m is kept between water plant clump, apart from pond Water plant is not planted within the scope of the 3m of side；
After the completion of plantation, agent of growing grass is applied；
1.4) it intakes
Shrimp with ovums puts preceding 3d~5d in a suitable place to breed, and pond is added water to water level and reaches 50cm~70cm；
1.5) basal dressing
After water inlet, that is, fermented decomposed organic fertilizer is applied as base fertilizer, meanwhile, apply biological organic fertilizer；
1.6) installation of ooxygenation facility
Micro-pore oxygenation facility is installed, it is ensured that pond oxygen demand；
2) shrimp with ovums is put in a suitable place to breed
2.1) temporarily feeding net cage
Net cage volume is 19~26 cubic metres, wherein net cage height is not less than 1 meter；Net cage is coated by screen cloth, and the density of screen cloth is 8~13 meshes；Each angle of net cage is equipped with nettle, is installed with gang rope on net cage；
2.2) it the selection of shrimp with ovums and puts in a suitable place to breed
The shrimp with ovums of selection requires the long 4.5cm or more of body, and constitution is stout and strong, and no wound is disease-free, and rapidly, spring is strong for swimming；
The embryonic development for the shrimp with ovums requirement ovum grain put in a suitable place to breed in net cage is synchronous, as taupe and has eyespot using the ovum grain of oogenesis Subject to；
Shrimp with ovums stocking rate is 0.4 kg~0.5kg/667m2；
Shrimp with ovums is placed in net cage, and discharge water plant inside net cage, and water plant injected volume covers the 1/3 of net cage area；
2.3) daily management
To inflating in net cage, keep the dissolved oxygen in net cage in water body in 5g/mL or more；
3) shrimp seed rearing
3.1) harvesting of close shrimp
The scattered seed situation of observation shrimp with ovums daily, when the shrimp with ovums for being more than 4/5 is completed to dissipate seed, then by all freshwater shrimps in net cage It catches, and removes the net cage of erection；
3.2) feeding management
With 100 mesh fishing nets, air port carries out diddle-net inspection under pond daily, after finding first phase zoea in pond, opens Begin to splash and feeds the soya bean slurry for impregnating defibrination；
From there is freshwater shrimp first phase zoea to 10d, full pool spilling head soya-bean milk；
When zoea density reaches 30~40/diddle-net, every 667m20.5~1kg soybean soaking defibrination is used in area pond daily, Divide 2 full pool spilling heads；Feeding time be morning 8:00~9:00, afternoon 16:00~17:00；
From 10d to 15d, every 667m2The splash daily soya bean dosage of soya-bean milk of area pond increases to 2~3 kilograms, and day feeds two It is secondary, the time be morning 8:00~9:00, afternoon 16:00~17:00；From 15d to 20d, in addition to soya-bean milk of splashing, at dusk daily Increase in pool side shoal and feeds the dedicated 0# mixed feed of freshwater shrimp that protein content is 40%~42%, the partial size 0.2mm of feed~ 0.7mm, every 667m2Area pond feeding volume is 0.4~0.55kg；
When shrimp seedling has been grown to 0.6~0.8cm, stopping is splashed soya-bean milk, and feeding freshwater shrimp protein content twice daily is 40%~42% The dedicated 0# mixed feed of freshwater shrimp or the dedicated 1# mixed feed of 38%~40% freshwater shrimp, the partial size of feed is all 1mm~1.5mm, throw Feed amount 2~3kg/667m2, Feeding time be morning 8:00~9:00, afternoon 16:00~17:00；
In soya-bean milk, the mass ratio of soya bean and soya-bean milk is 1:25；
3.3) water quality management
During nursery, water colour is controlled, transparency control is being not less than 20cm；New water is filled when water quality overrich, when water quality is excessively thin It splashes biological organic fertilizer；
Shrimp seedling body is grown to before 1cm, adds within every 7 days the new water of the 5cm depth of water；After shrimp seedling body length is more than 1cm, water 10cm water is changed within every 7 days It is deep；
While adding water or change water, EM bacteria preparation is applied；
After shrimp seedling often takes off a shell, the dedicated ionized calcium 300mL~500mL/667m of aquatic products of splashing immediately2, aquatic products electrolysis special multidimensional 100g~200g/667m2；
1 substrate modifier of application in every 10 days, usage amount are 100g~300g/667m2；
According to water quality situation, timely and appropriate discovery applies antidote；
In due course oxygenation, frequently opens aerator, and encountering muggy weather, nine o'clock to the morning on next day carries out oxygenation at night；The daytime of rainy days Also oxygenation is carried out；During high temperature, oxygenation half an hour at noon；
4) at shrimp aquaculture
4.1) feeding management
After shrimp seedling body is long grows to 2cm~2.5cm, the shrimp aquaculture stage is initially entered into；
The dedicated 2# mixed feed of freshwater shrimp that protein content is 36%~38% is fed, feed particle diameter is 1.6mm~2mm, day feeds two Secondary, feeding every time is the 3%~5% of freshwater shrimp weight；Wherein, 30% is thrown when the morning 7~8, is uniformly shed in apart from pond waterside 1.5 The pool of~2m；70% is thrown when afternoon 5~6, is thrown at 1~1.5m of pond waterside；
After October, the dedicated 3# mixed feed of freshwater shrimp of protein content 36%~38% is used instead, feed particle diameter is 2.2mm~3mm；With Water temperature gradually decline, feeding amount gradually reduces, and feeding amount is subject to the feed fed and is eaten up within 2h；
4.2) water quality management
In breeding process, water transparency is controlled in 40~50cm；Water body is adjusted by applying fertilizer or applying bacillus subtilis Transparency；
Every 10d changes a water, and quantity of exchanged water is the 10cm depth of water；After changing water, splash ionized calcium 300mL~500mL/667m2, electrolysis it is more Tie up 100g~200g/667m2；1 substrate modifier of application in every 10 days, usage amount are 100g~300g/667m2；According to water quality feelings Condition applies antidote in due course；
In due course oxygenation, frequently opens aerator, and encountering muggy weather, nine o'clock to the morning on next day carries out oxygenation at night；The daytime of rainy days Also oxygenation is carried out；During high temperature, oxygenation half an hour at noon；
4.3) water plant manages
Pond water plant coverage rate controls the 70% of pool water within area；
4.4) daily management
The pool is patrolled daily morning and evening each 1 time；Measurement pond water temperature, dissolved oxygen each 1 time daily, dissolved oxygen requirement >=5mg/L；
Every 6d~7d surveys ammonia nitrogen, nitrite water quality indicator each 1 time, and ammonia nitrogen, nitrite index request reach fishery water quality mark The requirement of quasi- GB11607-92, it is ensured that the stabilization of cultivation water；
4.5) at shrimp harvesting
When shrimp culture specification reaches 150 tails/kg, rises in due course and catch out pond.
2. cultural method according to claim 1, it is characterized in that keeping the interval 6m between water plant clump in the step 1.3)；
Part water plant is substituted using artificial shrimp nest；Artificial shrimp nest is made of tea tree branch；
In the step 1.4), pond adds the water inlet of water double medium filtration mesh bag mistake made of the bolting silk of 150 μm~180 μm of aperture Filter；
In the step 1.6), micro-pore oxygenation facility is micro-pore oxygenation machine, and the mesh power of micro-pore oxygenation machine is 0.2KW/667m2。
3. cultural method according to claim 1, it is characterized in that in the step 2.1), temporary feeding net cage length × width × height Specification is 4m × 4m × 1.2m, and net cage material is the green polyethylene screen cloth of 10 meshes, and the periphery of net cage is installed with gang rope, 8 angles Continue to employ nettle for fixing.
4. cultural method according to claim 1, it is characterized in that in the step 4.1)
After shrimp seedling body is long grows to 2cm~2.5cm, feed the dedicated 2# mixed feed of freshwater shrimp, feed day it is secondary, feed every time for The 3%~3.6% of freshwater shrimp weight perhaps 3.6%~4.3% or 4.3%~5%；
In the step 3.2), in soya-bean milk, the mass ratio of soya bean and soya-bean milk is 1:25.
5. cultural method according to claim 1, it is characterized in that
In step 2.2), the shrimp with ovums stocking rate are as follows: 0.40~0.42kg/667m2；
In step 3.2)
A, when zoea density reaches 30~40/diddle-net, every 667m2Area pond uses soya bean daily are as follows: 0.5~ 0.6kg；
B, from 15d to 20d, increase and feed the dedicated every 667m of 0# mixed feed of freshwater shrimp2Area pond feeding volume are as follows: 0.4~ 0.48kg；
C, when shrimp seedling has been grown to 0.6~0.8cm, the dedicated 0# special compound feed of freshwater shrimp or the dedicated 1# of 38%~40% freshwater shrimp are fed Special compound feed；Feeding volume are as follows: 2~2.3 kg/667m2；
In the step 4.1)
After shrimp seedling body is long grows to 2cm~2.5cm, feed the dedicated 2# mixed feed of freshwater shrimp, feed day it is secondary, feed every time for The 3.6%~4.3% of freshwater shrimp weight.
6. cultural method according to claim 1, it is characterized in that
In step 2.2), the shrimp with ovums stocking rate are as follows: 0.42~0.46kg/667m2；
In the step 3.2)
A, when zoea density reaches 30~40/diddle-net, every 667m2Area pond uses soya bean daily are as follows: 0.6~ 0.9kg；
B, from 15d to 20d, increase and feed the dedicated every 667m of 0# mixed feed of freshwater shrimp2Area pond feeding volume are as follows: 0.48~ 0.53kg；
C, when shrimp seedling has been grown to 0.6~0.8cm, the dedicated 0# special compound feed of freshwater shrimp or the dedicated 1# of 38%~40% freshwater shrimp are fed Special compound feed；2.3~2.9 kg/667m2；
In the step 4.1)
After shrimp seedling body is long grows to 2cm~2.5cm, feed the dedicated 2# mixed feed of freshwater shrimp, feed day it is secondary, feed every time for The 4.3%~5% of freshwater shrimp weight.
7. cultural method according to claim 1, it is characterized in that
In step 2.2), the shrimp with ovums stocking rate is 0.46~0.5kg/667m2；
In the step 3.2)
A, when zoea density reaches 30~40/diddle-net, every 667m2Area pond uses soya bean daily are as follows: 0.9~1kg；
B, from 15d to 20d, increase and feed the dedicated every 667m of 0# mixed feed of freshwater shrimp2Area pond feeding volume are as follows: 0.53~ 0.55kg；
C, when shrimp seedling has been grown to 0.6~0.8cm, the dedicated 0# special compound feed of freshwater shrimp or the dedicated 1# of 38%~40% freshwater shrimp are fed Special compound feed；Feeding volume is 2.9~3kg/667m2；
In the step 4.1)
After shrimp seedling body is long grows to 2cm~2.5cm, feed the dedicated 2# mixed feed of freshwater shrimp, feed day it is secondary, feed every time for The 3%~3.6% of freshwater shrimp weight.
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CN105165669A (en) * 2015-07-27 2015-12-23 上海市水产研究所（上海市水产技术推广站） High-efficiency ecological cultivation method for macrobrachium nipponense

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