CN106172121B - The thick method of litopenaeus vannamei batch production shrimp seedling salinization mark - Google Patents
The thick method of litopenaeus vannamei batch production shrimp seedling salinization mark Download PDFInfo
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Abstract
The invention discloses a kind of methods that litopenaeus vannamei batch production shrimp seedling salinization mark is thick, comprising the following steps: material and method that one, salinization mark is thick: (1) preparation of standard crude pool；(2) pre-processing of breeding water body；Two, seed is launched: (1) seed selection and dispensing；(2) shrimp seedling mark crude density；Three, salinization mark extra heavy pipe is managed: (1) bait feeding；(2) bait regulates and controls；(3) salinization is handled；Four, go out pond situation: emergence rate is resistant to salinity 50~60, specification is in 1.5~2cm up to 60%~80%, the healthy and strong active, muscle of obtained seed enriches, enteron aisle is full, the bright and clean no attachment of whole body, it is sensitive to external stimulate the reaction, there is top water travelling and is stained with wallflow and is.The present invention gradually makes shrimp seedling adapt to new environment by the way that the salinity of aquaculture pond is continuously improved, and then reaching makes shrimp seedling generate halophilic characteristic, so that realizing can put in a suitable place to breed in region with high salt, improves weed survival rate.
Description
Technical field
The present invention relates to the cultural technique fields of prawn, and in particular to a kind of litopenaeus vannamei batch production shrimp seedling salinization mark is thick
Method.
Background technique
Litopenaeus vannamei belongs to eurysalinity shrimps, has stronger tolerance to salinity, is resistant to salinity 0.5~70, most suitable
Salinity 23~35, currently, the thick work study of the mark of litopenaeus vannamei seed is concentrated mainly on Brackish water Pond and thick technology is marked in desalination,
Salinization mark is slightly studied less, litopenaeus vannamei cultivation in the northern area of China is mainly based on sea-farming and freshwater aquiculture, salt
For degree 0.5~40, part cultivates regional salinity 40~60, the study found that the growth of 35 or more prawn of salinity increase with salinity and
Slow down, survival rate reduce, excessively high salinity will use in adjust osmotic pressure protein depletion it is larger, if shrimp body cannot get abundance
Bait will restrict growth, and the death rate gradually rises, but shrimp with high salt is higher than fresh water shrimp and less salt shrimp, Wen Guoliang etc. in quality
Result of study show that on protein, ash content, Fresh ear field and shrimp taste amino acid content, mariculture prawn is higher than every
The freshwater aquiculture prawn of tail phase homogenous quantities.
Summary of the invention
It is an object of the present invention to provide a kind of methods that litopenaeus vannamei batch production shrimp seedling salinization mark is thick, it can be efficiently solved
The problem of in the presence of background technique.
In the presence of solving the problems, such as background technique, comprising the following steps:
One, the thick material of salinization mark and method
(1) preparation of standard crude pool
Salinization mark slightly operates the indoor cement pit progress in cultivating workshop, and aquaculture pond length-width ratio 1: 1, bottom of pond has certain
Tilt angle, and it is equipped with PVC drain pipe, discharge outlet side outline is low lower than entire pond, and discharge outlet is communicated with the total drainage ditch in workshop,
Shrimp seedling, blowdown are collected using it, standard crude pool is equipped with perfect culvert system, air supply system and temperature-increasing system, culvert system
Equipped with independent seawater pipeline and fresh water pipeline, air supply system includes Roots blower, gas pipeline, air hose, ventilation tune
Valve, nanotube gas disk are saved, bottom of pond is uniformly distributed nanotube aeration plate, guarantees that water body dissolved oxygen content is greater than 6mg/L；
(2) pre-processing of breeding water body
2a) standard crude pool sterilizes
Seedling first three days are put, strict disinfection treatment is carried out to the drug of standard crude pool and breeding device strong oxidizing property, selects Gao Meng
At least one of sour potassium, bleaching powder (effective chlorine 25%~32%), povidone iodine drug carries out disinfection processing, concrete operations:
Potassium permanganate 10mg/L~20mg/L or 100mg/L bleaching powder (effective chlorine 25%~32%) are watered full pool spilling head, scrub bottom of pond,
Pool wall is clean with fresh water repeated flushing after disinfection；
It 2b) fills the water and adjusts
Breeding water is nature seawater, passes through filtering, precipitating, foam fraction factor, uv-radiation sterilisation, aeration, sand using preceding
The processing such as filter, the seawater handled well is driven into feed coefficient, by the aqueduct between feed coefficient and cultivating workshop by water
It is conveyed into workshop distribution reservoir, after distribution reservoir completes salinity and temperature is adjusted, water distribution water is squeezed by standard crude pool by levitated pump,
Add filter stick in standard crude pool water inlet, fills seawater to standard crude pool early period, salinity is close with former nursery pond salinity, marks thick starting salt
Degree generally 27, temperature is 30 DEG C, and pH is 7.8~8.5, opens inflation regulating valve, is aerated for water, and effect has two aspects,
On the one hand increase the dissolved oxygen content in water, the chlorine residue in water is on the other hand eliminated by aeration, chlorine residue is excessively high can be by using
Sodium thiosulfate (aquatic products use) water-sprinkling is adjusted, dosage: pressing 1.5g/m3Drug is weighed, is sufficiently dissolved with water, it is complete after 1000 times of dilution
Pond is splashed, and detects culture medium using vibrios and total bacterial examination surveys vibrios content and total bacterium type and quantity in culture medium detection water, root
It selectively splashes related drugs according to testing result, box is quickly analyzed using pH and is detected, the excessively high usable alkaline-reducing bacterium tune of pH
Section, pH is too low to apply sodium bicarbonate adjusting, if water body is really up to the mark, weighs disodium ethylene diamine tetraacetate by 3~5mg/L into standard crude pool
(EDTA-2Na) full pool spilling head chelates heavy metal in water；
2c) bait prepares
Manually mixed feed and animal bait two major classes, artifical compound feed select Silver Lake board prawn slice, Hai Ji to bait
At least one of board B.P or Japanese car member feed, animal bait select fresh and alive big artemia, wheel animalcule, and the wheel animalcule young can lead to
Workshop is crossed to spread cultivation acquisition；
Two, seed is launched
(1) seed selection and dispensing
Shrimp seedling selective body surface drying is net, travelling is vivaciously strong, it is good to ingest, gutstring is clear, specification P5, the P6 phase, length 0.3
~0.5cm son shrimp individual, seed enter 1h before pond, and full pool spilling head resisting stress removing toxic substances VC prepares to alleviate the stress situation of seed,
Put the salinity and temperature before seedling in measurement seed bag, water salinity to be adjusted to it is almost the same, put seedling be typically chosen at noon and
Afternoon, night are the collection mid-terms that shrimp seedling takes off shell, and night is forbidden to put seedling, reduce mechanical damage caused by due to putting seedling, will when putting seedling
Seed bag is put into pond, it is made to bubble through the water column, and is unlocked seed bag after crossing 15min, seed is slowly poured into aquaculture pond, Xiang Chizhong
It splashes prawn slice and black grain, supplements the nutrients in time for shrimp seedling；
(2) shrimp seedling mark crude density
The standard crude pool breeding density of shrimp seedling is unsuitable excessively high, otherwise will affect quality and the speed of growth, but also need to take into account economy
Benefit selects the shrimp seedling of 0.3~0.5cm, with 7~120,000 tails/m3Density dispensing is advisable；
Three, salinization mark extra heavy pipe is managed
(1) bait feeding
Bait requires nutrition general equilibrium, and principle " a small amount of frequently to feed ", every meal is intended to control the time fed and frequency,
Select cheap prawn slice, wheel animalcule and big artemia, bait feeding amount need to according to the growth of shrimp seedling, ingesting and draining situation carries out
Adjustment, day feeding volume early period are the 15%~30% of shrimp body weight, and prawn slice increase by 5~10g daily, and big artemia feeding volume is prawn slice
3.5 times, wheel animalcule feeding volume is 3 times of prawn slice, and mid-term day feeding volume is the 10%~15% of shrimp body weight, later period day feeding volume
It is the 5%~10% of shrimp body weight, feeds daily 8 times, every 3h is fed 1 time, and prawn slice and big artemia or wheel animalcule are fed in turn, is bought
Big artemia, strict sterilization need to be carried out, and gently rubbed and cleaned up with seawater, be put into refrigerator and freeze 7h, chopped wait take out before feeding
Broken to feed, wheel animalcule takes the fresh and alive wheel animalcule to spread cultivation to feed, and also to carry out strict sterilization, and Japanese car member feed is periodically added into bait
Or at least one of sea collection board B.P, immune polysaccharide eat female at least one of life or multidimensional nutrition enhancer；
(2) bait regulates and controls
Feed rear 1h, fetched water with beaker and light is observed, to the ingesting of shrimp seedling, move about, drain situations such as conscientiously observed,
If water body is limpid, transparency is good and without residual bait, illustrate to feed just, the later period can suitably feed；If there is a little residual bait, have in water
Smoky feeling, poor transparency have residual bait deposited bottom, then need to observe again after half an hour, if existing residual bait,
It then needs to reduce feeding volume in time, simple count is carried out to shrimp seedling daily, accomplishes the understanding of seed quantity and specification, cooperates daily
Situation, the change of water quality of ingesting adjust bait feeding amount and type in time；
(3) salinization is handled
The salinization processing of litopenaeus vannamei follows the principle of " incremental ", and the daily salinity amplitude of accommodation is no more than 8~
12, when salinity is more than 43, when salinity altercation amplitude is more than 8, it need to carry out in two times, salinity adjusting must control waterflood injection rate,
The method for taking shallow bid sluggish flow to fill periodically splashes beneficial to viable bacteria, adjusts water ecological setting；
Four, go out pond situation
Emergence rate is up to 60%~80%, and tolerance salinity is 50~60, and for specification in 1.5~2cm, obtained seed is healthy and strong living
Bold and vigorous, muscle enriches, enteron aisle is full, and the bright and clean no attachment of whole body is sensitive to external stimulate the reaction, has top water travelling and is stained with wallflow
For.
Due to using above technical scheme, the invention has the following advantages: passing through the salt that aquaculture pond is continuously improved
Degree is gradually to make shrimp seedling adapt to new environment, and then reaching makes shrimp seedling generate halophilic characteristic, so that realizing can be in area with high salt
Domain is put in a suitable place to breed, and weed survival rate is improved, and shortens the purpose for forming the period.
Specific embodiment
Embodiment
The thick method of litopenaeus vannamei batch production shrimp seedling salinization mark, comprising the following steps:
One, the thick material of salinization mark and method:
(1) preparation of standard crude pool
Salinization mark slightly operates the indoor cement pit progress in cultivating workshop, aquaculture pond length-width ratio 1: 1, effective area 25m2,
Pond depth 1.6m, maximum water-storage 37.5m3, the plastering of Quan Chiyong cement slurry, surface applies one layer of waterproof coating, and bottom of pond, which has, certain inclines
Rake angle, and 100 millimeters of PVC drain pipes are equipped with, discharge outlet side outline is low lower than entire pond, discharge outlet and the total drainage ditch in workshop
It communicates, collects shrimp seedling, blowdown using it, standard crude pool is equipped with perfect culvert system, air supply system and temperature-increasing system, into draining
System is equipped with independent seawater pipeline and fresh water pipeline, and air supply system includes Roots blower, gas pipeline, air hose, leads to
Gas regulating valve, nanotube gas disk, bottom of pond are uniformly distributed nanotube aeration plate, and every pond is furnished with 5 gas disks, guarantee water body dissolved oxygen content
Greater than 6mg/L, cultivating workshop well-ventilated, illumination is sufficient；
(2) pre-processing of breeding water body
2a) standard crude pool sterilizes
Seedling first three days are put, strict disinfection treatment is carried out to the drug of standard crude pool and breeding device strong oxidizing property, kills enemy
Biology improves pool bottom environment, accomplishes the clean of standard crude pool, selects potassium permanganate, bleaching powder (effective chlorine 25%~32%)
Or at least one of povidone iodine drug come carry out disinfection processing, concrete operations: potassium permanganate 10mg/L~20mg/L or
100mg/L bleaching powder (effective chlorine 25%~32%) is watered full pool spilling head, scrubs bottom of pond, pool wall, anti-with fresh water after disinfection
It rinses well again；
It 2b) fills the water and adjusts
Breeding water is nature seawater, passes through filtering, precipitating, foam fraction factor, uv-radiation sterilisation, aeration, sand using preceding
The processing such as filter, the seawater handled well is driven into feed coefficient, by the aqueduct between feed coefficient and cultivating workshop by water
It is conveyed into workshop distribution reservoir, after distribution reservoir completes salinity and temperature is adjusted, water distribution water is squeezed by standard crude pool by levitated pump,
Adding filter stick (composition: water pipe, absorbent cotton, grenadine, cotton bag) in standard crude pool water inlet, early period fills 110cm seawater to standard crude pool,
Salinity is close with former nursery pond salinity, marks thick starting salinity and is generally 27, and temperature is 30 DEG C, and pH is 7.8~8.5, opens inflation
Regulating valve is aerated for water, and effect has two aspects, on the one hand increases the dissolved oxygen content in water, is on the other hand disappeared by aeration
Chlorine residue in water removal, chlorine residue is excessively high can be adjusted by using sodium thiosulfate (aquatic products use) water-sprinkling, dosage: pressing 1.5g/m3Claim
Drug is taken, is sufficiently dissolved with water, full pool spilling head after 1000 times of dilution detects culture medium using vibrios and total bacterial examination is surveyed culture medium and examined
Survey vibrios content and total bacterium type and quantity in water, related drugs of selectively splashing according to testing result, by using Huizhou
Love tries clever " Wei Qing " vibrios jinx and realizes " antibacterial with bacterium " purpose, and potent inhibition Vibrio harveyi reduces acute Hepatopancreatic necrosis
Generation, box is quickly analyzed using pH and is detected, pH is excessively high to apply alkaline-reducing bacterium (acetic acid bacteria and lactobacillus preparation) adjusting, pH
It is too low to apply sodium bicarbonate adjusting, if water body is really up to the mark, disodium ethylene diamine tetraacetate is weighed by 3~5mg/L into standard crude pool
(EDTA-2Na) full pool spilling head chelates heavy metal in water；
2c) bait prepares
Manually mixed feed and animal bait two major classes, artifical compound feed select Silver Lake board prawn slice, Hai Ji to bait
Board B.P, Japanese car member feed etc., animal bait select fresh and alive big artemia, wheel animalcule, and the wheel animalcule young can be spread cultivation by workshop and be obtained
, it both can guarantee the fresh and alive of the young, also can guarantee there is wheel animalcule young long run supply, save aquaculture cost；
Two, seed is launched
(1) seed selection and dispensing
Shrimp seedling selective body surface drying is net, travelling it is active it is strong, ingest that good, gutstring is clear, specification P5, P6 phase length 0.3
~0.5cm son shrimp individual, seed enter 1h before pond, full pool spilling head resisting stress removing toxic substances VC, and the stress situation that seed is alleviated in position is prepared,
Put the salinity and temperature before seedling in measurement seed bag, water salinity to be adjusted to it is almost the same, put seedling be typically chosen at noon and
Afternoon, night are the collection mid-terms that shrimp seedling takes off shell, and night is forbidden to put seedling, reduce mechanical damage caused by due to putting seedling, will when putting seedling
Seed bag is put into pond, it is made to bubble through the water column, and is unlocked seed bag after crossing 15min, seed is slowly poured into aquaculture pond, Xiang Chizhong
It splashes prawn slice and black grain, supplements the nutrients in time for shrimp seedling；
(2) shrimp seedling mark crude density
The standard crude pool breeding density of shrimp seedling is unsuitable excessively high, otherwise will affect quality and the speed of growth, but also need to take into account economy
Benefit is typically chosen the shrimp seedling of 0.3~0.5cm, with 7~120,000 tails/m3Density dispensing is advisable, and throws in Miao Qiancong oxygen bag and extracts
1~2 bag of seed is counted, and correctly to hold stocking rate, this salinization mark slightly launches 2,800,000 tails of seed/pond, is divided 3 batches, is thrown altogether
Put 52,000,000 tail of seed；
Three, salinization mark extra heavy pipe is managed
(1) bait feeding
Bait is the energetic supersession basis of prawn and the material base of existence, growth, rationally carries out feeding for science, is mark
The key point of thick success or failure, cost can not only be reduced by rationally feeding, but also substantially reduce the generation of disease, and bait requires nutrition comprehensively equal
Weighing apparatus, principle " a small amount of frequently to feed ", every meal is intended to control the time fed and frequency, it is contemplated that aquaculture cost, selection more price
Cheap prawn slice and big artemia etc., bait feeding amount need to according to the growth of shrimp seedling, ingest, drain situations such as be adjusted, early period
Day feeding volume is the 15%~30% of shrimp body weight, and prawn slice increase by 5~10g daily, and wheel animalcule, artemia are good animality baits
Material, food nutrition value is high, and big artemia feeding volume is 3.5 times of prawn slice, and wheel animalcule feeding volume is 3 times of prawn slice, throws mid-term day
The amount of feeding is the 10%~15% of shrimp body weight, and later period day feeding volume is the 5%~10% of shrimp body weight, is fed daily 8 times, every 3h
It feeds 1 time, prawn slice and the big artemia of animal bait or wheel animalcule are fed in turn, and the big artemia bought need to carry out strict sterilization, be used in combination
Seawater is gently rubbed and is cleaned up, and is put into refrigerator and is freezed 7h, is fed wait take out to mince before feeding, and wheel animalcule takes the fresh and alive wheel animalcule to spread cultivation to throw
Hello, strict sterilization is perhaps carried out, at least one of Japanese car member feed or sea collection board B.P are periodically added into bait, are immunized
Polysaccharide eats at least one of female life, multidimensional nutrition enhancer, enhances seed constitution, guarantees intestinal health, reduces disease hair
It is raw；
(2) bait regulates and controls
Feed rear 1h, fetched water with beaker and light is observed, to the ingesting of shrimp seedling, move about, drain situations such as conscientiously observed,
If water body is limpid, transparency is good and without residual bait, illustrate to feed just, the later period can suitably feed；If there is a little residual bait, have in water
Smoky feeling, poor transparency have residual bait deposited bottom, then need to observe again after half an hour, if existing residual bait,
It then needs to reduce feeding volume in time, simple count is carried out to shrimp seedling daily, accomplishes the understanding of seed quantity and specification, cooperates daily
Situation, the change of water quality of ingesting adjust bait feeding amount and type in time；
(3) salinization is handled
The salinization processing of litopenaeus vannamei follows the principle of " incremental ", and the daily salinity amplitude of accommodation is no more than 8~
12, when salinity is more than 43, when salinity altercation amplitude is more than 8, it need to carry out in two times, salinity adjusting must control waterflood injection rate,
Take shallow bid sluggish flow fill method, salinity adjust as shown in table 1, water level position maintains 140cm, into seedling after third day open
Begin to arrange and change water, the 1h before draining uses anti-stress medicine and immunopotentiator, and enriched nutritive reduces emergency reaction, salinization mark
The thick variation for paying close attention to water body physical and chemical factor, 29~32 DEG C of water temperature, pH value maintenance 7.8~8.5, dissolved oxygen 6mg/L or more, ammonia nitrogen
0.2mg/L is maintained at hereinafter, nitrite 0.1mg/L is hereinafter, lactic acid bacteria of periodically splashing, nitrobacteria, Lactobacillus casei, photosynthetic
At least one of bacterium or EM bacterium adjust water ecological setting beneficial to viable bacteria；
Table 1 marks thick salinity in the process and adjusts situation
Note: at different temperatures, the calculation formula of sea water specific gravity and salinity:
When water temperature is higher than 17 degree: S (‰) 1305 (specific gravity -1)+(t-17.5) * 0.3
When water temperature is lower than 17 degree: S (‰) 1305 (specific gravity -1)-(17.5-t) * 0.2
Four, go out pond situation
By the research and conscientious careful production operation to the litopenaeus vannamei son shrimp thick technology of mark with high salt, thick operation is marked
Succeed, obtain resistance to 34,300,000 tail of shrimp seedling with high salt of litopenaeus vannamei altogether, emergence rate up to 60% or more, tolerance salinity 50 with
On, specification is in 1.5~2cm, and the healthy and strong active, muscle of obtained seed enriches, enteron aisle is full, the bright and clean no attachment of whole body, externally
Carry out stimulate the reaction sensitivity, there is top water travelling and is stained with wallflow and is；Table 2 is salinization, marks the case where thick emergence, and shrimp seedling a part is used for
Company is personal, and another part is sold to local breeding enterprise.
2 salinization of table, the thick emergence of mark
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (1)
1. the thick method of litopenaeus vannamei batch production shrimp seedling salinization mark, it is characterised in that comprising the following steps:
One, the thick material of salinization mark and method
(1) preparation of standard crude pool: salinization mark slightly operates the indoor cement pit progress in cultivating workshop, standard crude pool length-width ratio 1: 1, pond
There is certain tilt angle at bottom, and is equipped with PVC drain pipe, and discharge outlet side outline is lower than entire bottom of pond, and discharge outlet is total with workshop
Drainage ditch communicates, and collects shrimp seedling, blowdown using it, and standard crude pool is equipped with perfect culvert system, air supply system and temperature-increasing system,
Culvert system is equipped with independent seawater pipeline and fresh water pipeline, and air supply system includes Roots blower, aeration regulation valve, gas transmission
Pipeline, gas pipeline include air hose and nanotube gas disk, and bottom of pond is uniformly distributed nanotube gas disk, guarantee water body dissolved oxygen content
Greater than 6mg/L；
(2) pre-processing of breeding water body
2a) standard crude pool sterilizes: putting seedling first three days, carries out at strict sterilization to the drug of standard crude pool and cultivation utensil strong oxidizing property
Reason selects potassium permanganate or bleaching powder to carry out disinfection processing, and wherein bleaching powder effective chlorine is 25%~32%, concrete operations:
10mg/L~20mg/L potassium permanganate or 100mg/L bleaching powder are watered full pool spilling head, scrub bottom of pond, pool wall, after disinfection, use
Fresh water repeated flushing is clean；
2b) fill the water and adjust: breeding water is nature seawater, is disappeared using preceding by filtering, precipitating, foam fraction factor, ultraviolet radioactive
Poison, aeration, sand filtration processing, the seawater handled well is driven into feed coefficient, the water delivery between feed coefficient and cultivating workshop is passed through
Water is conveyed into workshop distribution reservoir by pipeline, after distribution reservoir completes salinity and temperature is adjusted, is beaten water distribution water by levitated pump
Entering standard crude pool, adds filter stick in standard crude pool water inlet, fill seawater to standard crude pool early period, salinity is close with former nursery pond salinity,
The thick starting salinity of mark is generally 27, and temperature is 30 DEG C, and pH is 7.8~8.5, opens aeration regulation valve, is aerated for water, effect
There are two aspects, on the one hand increase the dissolved oxygen content in water, the chlorine residue in water is on the other hand eliminated by aeration, high pass is crossed in chlorine residue
It is adjusted using aquatic products sodium thiosulfate water-sprinkling, dosage: pressing 1.5g/m3Drug is weighed, is sufficiently dissolved with water, after 1000 times of dilution
Full pool spilling head detects culture medium using vibrios and total bacterial examination surveys vibrios content and total bacterium type and quantity in culture medium detection water,
It selectively splashes according to testing result related drugs, box is quickly analyzed using pH and is detected, pH is excessively high to use alkaline-reducing bacterium tune
Section, pH is too low to be adjusted using sodium bicarbonate, if water body is really up to the mark, weighs disodium ethylene diamine tetraacetate by 3~5mg/L into standard crude pool
(EDTA-2Na) full pool spilling head chelates heavy metal in water；
2c) bait prepares: manually mixed feed and animal bait two major classes, artifical compound feed select Silver Lake board shrimp to bait
Piece, sea collection at least one of board B.P or Japanese car member feed, animal bait select fresh and alive big artemia, wheel animalcule, the wheel animalcule young
It is spread cultivation acquisition by workshop；
Two, seed is launched
(1) seed selection and launch: shrimp seedling selective body surface drying is net, travelling it is active it is strong, ingest that good, gutstring is clear, specification is
P5, P6 phase, length 0.3~0.5cm son shrimp individual, seed enter 1h before pond, full pool spilling head resisting stress removing toxic substances VC, to alleviate seed
Stress situation is prepared, and puts salinity and temperature before seedling in measurement seed bag, and water salinity will be adjusted to almost the same, puts seedling one
As select at noon and afternoon, night are the collection mid-terms that shrimp seedling takes off shell, forbid night to put seedling, reduce machinery caused by due to putting seedling
Seed bag is put into pond when putting seedling, it is made to bubble through the water column by damage, unlocks seed bag after crossing 15min, seed is slowly poured into mark
In thick pond, Xiang Chizhong splashes prawn slice and black grain, supplements the nutrients in time for shrimp seedling；
(2) shrimp seedling mark crude density: the standard crude pool breeding density of shrimp seedling is unsuitable excessively high, otherwise will affect quality and the speed of growth, but
Also it needs to take into account economic benefit, selects the shrimp seedling of 0.3~0.5cm, it is 7~120,000 tails/m that density, which is launched,3；
Three, salinization mark extra heavy pipe is managed
(1) bait feeding: bait requires nutrition general equilibrium, and principle " a small amount of frequently to feed ", every meal is intended to control the time fed
And frequency, select cheap prawn slice, wheel animalcule and big artemia, bait feeding amount need to according to the growth of shrimp seedling, ingest and drain
Situation is adjusted, and day feeding volume early period is the 15%~30% of shrimp body weight, and prawn slice increase by 5~10g daily, and big artemia is fed
Amount is 3.5 times of prawn slice, and wheel animalcule feeding volume is 3 times of prawn slice, and mid-term day feeding volume is the 10%~15% of shrimp body weight, later period
Day feeding volume is the 5%~10% of shrimp body weight, is fed daily 8 times, every 3h is fed 1 time, and prawn slice and big artemia or wheel animalcule are in turn
It feeds, the big artemia bought need to carry out strict sterilization, and gently be rubbed and be cleaned up with seawater, be put into refrigerator and freeze 7h, wait feed
Preceding taking-up, which is minced, to be fed, and wheel animalcule takes the fresh and alive wheel animalcule to spread cultivation to feed, and also to carry out strict sterilization, and Japan is periodically added into bait
At least one of vehicle member feed or sea collection board B.P, immune polysaccharide eat female at least one of life or multidimensional nutrition enhancer；
(2) bait regulates and controls: feeding rear 1h, is fetched water with beaker and observed light, to the ingesting of shrimp seedling, moves about, drains situation and recognize
True observation illustrates to feed just, the later period suitably feeds if water body is limpid, transparency is good and without residual bait；If there is a little residual bait,
There is smoky feeling in water, poor transparency has residual bait deposited bottom, then need to observe again after half an hour, if after renewing
It in residual bait, then needs to reduce feeding volume in time, simple count is carried out to shrimp seedling daily, accomplishes the understanding of seed quantity and specification, matches
Close daily situation of ingesting, change of water quality adjusts bait feeding amount and type in time；
(3) salinization is handled: the salinization processing of litopenaeus vannamei follows the principle of " incremental ", and the daily salinity amplitude of accommodation is not
It more than 8~12, when salinity is more than 43 or when salinity altercation amplitude is more than 8, need to carry out in two times, salinity adjusting must be controlled
Waterflood injection rate, the method for taking shallow bid sluggish flow to fill periodically splash beneficial to viable bacteria, adjust water ecological setting；
Four, go out pond situation
Emergence rate up to 60%~80%, tolerance salinity 50~60, specification in 1.5~2cm, obtained seed it is healthy and strong vivaciously,
Muscle enriches, enteron aisle is full, and the bright and clean no attachment of whole body is sensitive to external stimulate the reaction, has top water to move about and be stained with wallflow and is.
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| CN106614186B (en) * | 2016-12-15 | 2019-07-19 | 中山大学 | Small size pond cultural method in a kind of thick stage room of Penaeus Vannmei mark |
| CN107027677B (en) * | 2017-06-01 | 2020-12-01 | 湛江市千舟渔水产有限公司 | Method for marking seedlings of penaeus vannamei boone in eutrophic water |
| CN108184734A (en) * | 2018-01-10 | 2018-06-22 | 正丰源生物科技（苏州）有限公司 | A kind of Penaeus Vannmei high-efficiency breeding method |
| CN108419726A (en) * | 2018-03-29 | 2018-08-21 | 山东省海洋生物研究院 | A kind of method of feed coefficient high salinity high-density breeding South Africa Penaeus monodon |
| CN108834970B (en) * | 2018-07-04 | 2021-11-09 | 中国水产科学研究院东海水产研究所 | Saline-alkali water quality domestication method for shrimp seedlings of litopenaeus vannamei |
| CN111213603A (en) * | 2018-11-23 | 2020-06-02 | 天津市宝益得农业科技有限公司 | Ecological breeding method for Penaeus vannamei Boone in rough labeling stage |
| CN109937934A (en) * | 2019-04-26 | 2019-06-28 | 天津立达海水资源开发有限公司 | A kind of shrimp seedling method for culturing seedlings |
| CN110250061A (en) * | 2019-07-18 | 2019-09-20 | 渤海水产股份有限公司 | A kind of thick method of mark being suitble to high salinity mariculture prawn |
| CN114081006A (en) * | 2020-12-31 | 2022-02-25 | 汇泰渤海水产有限责任公司 | Comprehensive disease prevention and control method for salt pan shrimp culture |
| CN114097674A (en) * | 2020-12-31 | 2022-03-01 | 渤海水产科技(滨州)有限公司 | Method for effectively preventing and controlling EMS (energy management system) in salt pan shrimp culture |
| CN113973756A (en) * | 2020-12-31 | 2022-01-28 | 渤海水产科技(滨州)有限公司 | Method for effectively preventing white feces syndrome in salt pan shrimp culture |
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