CN101711509B - Method for raising fries of oplegnathus fasciatus - Google Patents
Method for raising fries of oplegnathus fasciatus Download PDFInfo
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Abstract
The invention provides a method for raising fries of oplegnathus fasciatus, which comprises the following steps of: performing the fry raising process in an outdoor pond, adding an inorganic fertilizer, a 'fertilizer water king' and 'beneficial algin' into pond water before putting fertilized eggs into the pond, and controlling the transparency of the pond water to between 30 and 50 cm; and after incubation, adding the inorganic fertilizer, the 'beneficial algin' and a 'bacterium surviving king' into the pond water, and controlling the transparency of the pond water to between 30 and 35 cm. Compared with the prior art, the method for raising the fries is performed outdoor and the measures such as fertilization and the like are implemented to ensure that a certain amount direct baits or indirect baits are spontaneously propagated in the water, so the bait feeding dose is greatly reduced, and the problems of water pollutions and a large amount of water changes caused by too much bait feeding dose are solved; and simultaneously, rotifers are fed together with the baits to enrich the types and the nutrition of initial baits for the fries and improve the survival rate of the fires. Besides, because the method is performed outdoor, the costs for pond building, pond use and the like are reduced, and the fry raising density can be reduced, so the problems of a plurality of diseases and declined physique caused by over-high density are solved.
Description
What technical field the present invention relates to is a kind of oplegnathus fasciatus seedling-cultivating method, belongs to aquaculture field.
Background technology oplegnathus fasciatus (Oplegnathus fasciatus) mainly is distributed in Yellow Sea of China, the East Sea, marine site such as on the south the Hokkaido, Japan, is the famous and precious economic fish of lower floor in the warm property in coastal waters, the happiness sea area that cay, shellfish algae are grown thickly of dwelling.Its fine figure, beautiful in colour, enrich colloid, fine and tender taste subcutaneous containing, nutritious, has very high edible and ornamental value.Oplegnathus fasciatus also is called as " fish of illusion ", " king that rock angles ", liked by the rodman.Oplegnathus fasciatus does not have the tangible best fishing period, and output is little, and its breed has a extensive future.Oplegnathus fasciatus is fit to industrial aquaculture, pond culture and cage culture, and for propagating artificially with realization to culturing unit supply oplegnathus fasciatus fry, the someone has developed the seedling growing process of oplegnathus fasciatus.Comprise that incubating oosperm and young, postlarva cultivate the bait of under conditions such as 21～24 ℃ of water temperatures, salinity 28～32 ‰, pH value 8.0～8.2, throwing something and feeding, the program of throwing something and feeding: 3～25 days SS type wheel animalcules of throwing something and feeding after the hatching, 20～40/ml of the density of throwing something and feeding; 18～35 days artemia naupliis of throwing something and feeding in hatching back, 10～20/ml of the density of throwing something and feeding; Hatch back 28 days other bait of throwing something and feeding.
The stable supply of the progress of artificial breeding technology and seed is the key of mariculture industry sustainable development, so the stable supply of oplegnathus fasciatus seed is the technical foundation that this kind is propagated artificially.At present, comprise that there is variety of issue in the seedling growing process of aforementioned oplegnathus fasciatus, the method obtained with the indoor raising of seedling method of oplegnathus fasciatus seed especially is because many difference of indoor environment and natural environment causes the fry quality not good enough.Particular problem mainly is: 1, a large amount of energy of indoor raising of seedling consumption causes seedling cost high.Then strengthen seedling density blindly for reducing cost, cause so that the seed activity space is little, malnutritive, poor growth, disease take place frequently.2, attempt improves the fry growing ability, the people be throw something and feed excessive bait and because of the density degree to throw in food density too high, and be to reduce water that excessive bait caused to pollute and change water in a large number, cause seedling cost further to improve.3, under the indoor environment in addition the too high disease possibility that makes of seedling density improve, just must many medications in order to prevent and treat disease, cause medicament residue again and make the decline of seed quality.4, artificial environment construction, the quality of seed can not get ensureing.More than many factors cause a little less than the anti-emergency capability of seed, to the bad adaptability of environment, transportation is easy to be ill and dead with breeding process.
Summary of the invention is to above-mentioned defective, and the present invention causes the decline of seed viability, disease wildness, contaminated environment, cost high-technology problem in order to solve indoor raising of seedling, and a kind of seedling-cultivating method of non-indoor oplegnathus fasciatus is provided.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention comprises the cultivation of incubating oosperm and larvae juvenile fish, and the seedling water temperature is controlled to be 21～24 ℃; The pH value is controlled to be 8.0～8.4; Bait is thrown in the hatching back when larvae juvenile fish is cultivated, bait is mainly wheel animalcule and halogen worm, and wherein this seedling raising process carries out in outdoor ponds; And go into to apply in the water of forward direction pond, pond inorganic fertilizer and " rich water king " and " beneficial algae is plain " in fertilized egg, and the control water transparence is at 30～50cm; After hatching, apply inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king ", and the control water transparence is at 30～35cm to Chi Shuizhong.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention; Changing indoor carrying out carries out for outdoor; Utilize natural conditions and Xiang Chizhong to throw in suitable nutriment, through photosynthesis etc. impel breeding in the water a large amount of be main vegetal bait with the unicellular alga, the animal bait that continues is breeding voluntarily also.Along with the input of nutriment, aquatic plant property and animal bait are bred water clarity are descended, so excessive continuation of water clarity applied fertilizer and the enough just postponements of water clarity fertilising.Vegetal bait of being bred and animal bait not only can be directly as the open-mouthed bait of fry, and be the bait of copepoda animals such as follow-up bait wheel animalcule and halogen worm, make them can obtain breeding voluntarily to a certain degree.Compared with prior art; Because seedling-cultivating method of the present invention waits measure to make to breed a certain amount of direct bait or indirect bait in the water voluntarily in the outdoor fertilising that worked of going forward side by side; Daily ration, feeding quantity is significantly reduced, eliminated the water that causes because of daily ration, feeding quantity is excessive and polluted, and then the problem that will change water in a large number; Combine simultaneously to throw in wheel animalcule, make seed open-mouthed bait kind and nutritious, weed survival rate is high.Also because carry out outdoor, the pond is built and cost such as use reduces, and can reduce seedling density, thus the many diseases avoiding causing and the problem of physique decline because of density is too high.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention, before fertilized egg was gone into the pond, it was biological in the pond, to cultivate foundation bait; Said cultivation foundation bait is biological, be the control pond depth of water be 1.0～1.2m, water temperature under 18～20 ℃ situation, in pond waters, apply fertilizer; Fertilising comprises that use inorganic fertilizer, consumption are 2～3kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, and use " rich water king "; Consumption is 1.5～2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, and uses " beneficial algae is plain ", and consumption is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre; After treating that water transparence is reduced to 40cm～50cm, in seawater, throw in SS type wheel animalcule, injected volume is 3～5/ml; After throwing in wheel animalcule, continue to apply fertilizer in this way to keep water clarity at 30cm～40cm.Made the unicellular alga breeding before this; Comprise that also other plant property bait begins breeding; Pond water color is yellow green or yellowish-brown; What continue is the breeding of a large amount of animal bait, and SS type wheel animalcule breeding voluntarily in being rich in the seawater of unicellular alga etc. subsequently is for fry provides abundant bait and sets up the simple ecological environment.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention in alevin stage, is hatched after 5～7 days, observes water body SS type wheel animalcule quantity, keeps SS type wheel animalcule at 3～4/ml through the way of throwing in SS type wheel animalcule.In hatching 5～7 days, only, need not throw in other bait with unicellular alga and other vegetal baits of breeding, animal bait and be bait voluntarily in the pond through the SS type wheel animalcule of throwing in breeding.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention reaches alevin stage between the incubation period, keep water transparence at 30～35cm through appending inorganic fertilizer, and the inorganic fertilizer consumption is 1.5～2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention in the postlarva phase, adds seawater and makes the depth of water remain on 1.2～1.5m; And topdress among the Xiang Chishui; At 30～35cm, promptly is that index is used inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king " to Chi Shui with the control water transparence with the water clarity, and each consumption respectively is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre; Observe copepoda quantity in the pond simultaneously, keep copepoda at 0.2～0.5/ml through throwing in halogen worm or other copepoda animals.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention; At young stage, add seawater and make the depth of water remain on 1.5～1.8m, and topdress among the Xiang Chishui; To control water transparence at 30～35cm; Promptly be that index is used inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king " to Chi Shui with the water clarity, each consumption respectively is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, the artifical compound feed of throwing something and feeding simultaneously.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention, above-mentioned used mineral salt are one or more the cooperations in urea or superphosphate or sodium nitrate or the ammonium sulfate, splash with the seawater wiring solution-forming during use.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention, used seawater are through 60～80 purpose screen filtrations, with ovum spore and the ovum biological with keeping tiny seawater of removing bigger aquatic animal.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention, when fertilized egg was gone into the pond, the fertilized egg injected volume was 0.3～0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre.
The seedling-cultivating method of oplegnathus fasciatus provided by the invention before fertilized egg is gone into the pond, also can cross the incubation division with the micro hole screen cloth in the pond; Fertilized egg is dropped into hatching under little venting condition in the incubation division earlier; The micro hole screen cloth is removed in the hatching back, lets newly hatched larvae go into the pond, to ensure incubation rate.
Embodiment
Use the seedling-cultivating method of oplegnathus fasciatus provided by the invention can propose to use the detailed process of the whole technological means of the present invention following; But the present invention is not this a kind of detailed process only, and promptly following scheme can not be used for being defined as the necessary or unique embodiment of the present invention.
(1) cleans up the pond and sterilize
After outdoor pond of growing seedlings is selected, cleans up the pond and sterilize to avoid disease and insect pest, wherein the pond
Like used pond is mire, then earlier Chi Shui is drained, and quicklime is pressed in the amount impouring pond of 150～200kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre again; Water is splashed the quicklime slaking to the quicklime after the slaking at the bottom of the pond more equably then, and water inlet reaches the high 20cm of water level then; Let quicklime fully dissolve, soaked at the bottom of the pool 3 days, drain water then; Water inlet reaches the high 80cm of water level again, drains water after one day again.
If usefulness is pond at the bottom of the cement pit, then earlier Chi Shui is drained, tan by the sun after removing mud again, wash then at the bottom of pool wall and the pond, drain at last.
(2) cultivate the foundation bait biology
Inject the seawater that filters through 60～80 eye mesh screens in the pond after sterilization; The control depth of water is applied fertilizer after 18～20 ℃ in 1.0～1.2m, water temperature; Fertilising is to select one or more inorganic fertilizer of urea or superphosphate or sodium nitrate or ammonium sulfate to cooperate; Consumption is 2～3kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, and usage is evenly splashed for full pond after being made into the aqueous solution.Use " rich water king " and " beneficial algae is plain " simultaneously, consumption is respectively 1.5～2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre and 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, and usage also is that after being made into the aqueous solution evenly splash in full pond.Original unicellular alga breeds in a large number in the seawater of fertilising back, and along with the breeding of vegetal bait, multiple tiny animal bait also breeds in a large number, and this moment, pond water color was yellow green or yellowish-brown.After water transparence is reduced to 40cm～50cm, throw in SS type wheel animalcule, injected volume is by 3～5/ml of pond water volume, and after wheel animalcule was thrown in, owing to have abundant unicellular alga, SS type wheel animalcule to begin breeding, wheel animalcule quantity increased.Suitably topdress subsequently, comprise with consumption same as described above applying inorganic fertilizer, rich water king " and " beneficial algae is plain ",, additional SS type wheel animalcule also continues to improve nutrients in the water beyond consuming, and keep water clarity at 30cm～40cm.
(3) fertilized egg is gone into pond, hatching
Adopt the spilling water method from the parent population spawning pond, to collect fertilized egg, be moved into then to accomplish and cultivate in the biological pond of foundation bait, the immigration method has two:
The one, directly into the pond, going into the pond water temperature, to be controlled at 21～24 ℃, pH value be 8.0～8.4, selects fine day to carry out, and on the upwind limit in pond, fertilized egg thrown in into the pond when going into the pond, and the fertilized egg injected volume is 0.3～0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre.The control of the pH value of water temperature and water as above between the incubation period.
The 2nd, in the pond, building 10～15m with pvc pipe
2The hatching canopy, hatch about regional depth of water 0.5m, impale with PVC colour bar cloth entirely.Equally water temperature being controlled at 21～24 ℃, pH value is 8.0～8.4, and the fertilized egg injected volume is for to count 0.3～0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre by whole pond.The control of the pH value of water temperature and water as above and under little venting condition is hatched between the incubation period.After treating incubating oosperm, remove hatching canopy and PVC colour bar cloth, make newly hatched larvae go into the pond.
(4) larvae juvenile fish is cultivated
Alevin stage: owing to have a large amount of unicellular algas and the tiny animal bait of suitable opening in the pond; The prelarva phase does not need the bait throwing in material, hatches after 5～7 days, observes water body wheel animalcule quantity; Basically keep wheel animalcule at 3～4/ml, can suitably throw in if wheel animalcule quantity reduces.Reach alevin stage between the incubation period, the transparency of observing water can be appended inorganic fertilizer like transparency separately greater than 30～35cm, consumption 1.5～2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre.
The postlarva phase: add seawater, keeping the pond water is 1.2～1.5m, topdresses among the Xiang Chishui; Promptly use inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king " simultaneously; Consumption respectively is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, keeps water transparence at 30～35cm, observes copepoda quantity in the pond this moment; Basically keep copepoda at 0.2～0.5/ml, if but the later stage copepoda reduce every day and throw something and feed on a small quantity artemia nauplii and copepoda.
Young stage: add seawater, keeping the pond water is 1.5～1.8m, topdresses among the Xiang Chishui; Promptly use inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king " simultaneously; Consumption respectively is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, keeps water transparence 30～35cm, the artifical compound feed of throwing something and feeding simultaneously.
The present invention grows seedlings in outdoor ponds; Go into the techniqueflow of pool hatching and larvae juvenile fish cultivation through cultivation pond food organisms, the fertilized egg of bionical attitude; Improved the emergency capability of seed; The activity space of seed of the present invention is big simultaneously, makes fast growth, has avoided the disease problem that causes owing to seedling density is excessive.And the use microorganism formulation, need not to use the antibiotic medicine, improved the seed quality, mainly be the disease resistance ability that has improved it, accomplished that environmental protection, green non-pollution seed produce.
The product that " the rich water king " of above-mentioned use, " beneficial algae is plain " and " viable bacteria king " all adopt the remarkable biological Co., Ltd in Hainan to make.These biologic products all can keep water body stable, remove larger molecular organics in pollution in the water body, the degraded water body, to remove the root that harmful substance forms, eliminates potential hidden danger and improves fertilizer efficiency and improve water body environment.
Below be two concrete embodiment:
Embodiment 1
On April 25th, (1) 2009 is at the bottom of selected a bite mud, cement bank protection, area be 1000m
2The Tu Chi of (being roughly equal to 1.5 mu).Earlier Chi Shui is drained, with in quicklime 150～200kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre impouring pond, water is the quicklime slaking then again; Splash the quicklime after the slaking at the bottom of the pond equably, water inlet reaches the high 20cm of water level then, lets quicklime fully dissolve again; Soaked at the bottom of the pool 3 days; Drain water then, water inlet reaches the high 80cm of water level again, drains water after one day again.Inject the seawater that filters through 80 mesh sieve tulles, the depth of water 1.0～1.2m at last.
(2) using inorganic fertilizer urea and sodium nitrate rich water on May 1, evenly splashes in full pond, and consumption is 2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre altogether.Use " rich water king " 2kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre simultaneously, " beneficial algae is plain " 0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, also be made into the aqueous solution after full pond evenly splash.May 8, water clarity was 47cm, threw in native pond SS type wheel animalcule, and injected volume is 3～5/ml.May 10, water clarity was 36cm, topdressed once, kept water clarity at 30～40cm, and topdressing is to execute urea and sodium nitrate 2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, " rich water king " 2kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, " beneficial algae element " 0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre altogether once more, all is made into the full pond of the aqueous solution and evenly splashes.
(3) May 11, throw in the oplegnathus fasciatus fertilized egg 0.5kg that washed, be in the wind to putting into the pond.
(4) May 15, hatching was alevin stage, and oplegnathus fasciatus begins to ingest, and topdressed among the Xiang Chishui, was total to 2kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre with urea and superphosphate etc., evenly splashed in full pond, and keeping water transparence is 30cm～40cm.The native pond SS wheel animalcule of throwing something and feeding again May 20 is kept wheel animalcule at 3～4/ml.May 25 got into the postlarva phase, added seawater, and keeping the pond water is 1.2～1.5m; Topdress among the Xiang Chishui; Use urea and superphosphate 0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre altogether, also use " beneficial algae is plain " and " viable bacteria king " each 1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, keep water transparence 30～35cm; Throw something and feed on a small quantity every day simultaneously artemia nauplii and copepoda are kept copepoda basically at 0.2～0.5/ml.Get into young stage June 1, adds seawater, and keeping the pond water is 1.5～1.8m; Topdress among the Xiang Chishui, the kind consumption kept water transparence 30～35cm with May 25; Begin the domestication manufactured feed of ingesting, feeding volume is looked fry and is ingested situation and decide, tames through 4～7 days; Can use manufactured feed fully, the manufactured feed of throwing something and feeding ever since.
(5) June 20, collect juvenile fish with trawlnet, the oplegnathus fasciatus seedling is on average pitched long 4.21cm, and quantity is 15.4 ten thousand tails.
Embodiment 2
In an outdoor open area is 1000m
2Cement pit carry out, April 25, Chi Shui drained, and tanned by the sun after removing mud, washed then at the bottom of pool wall and the pond, drained at last.In the pond, build the hatching canopy, upward be the incubation division down for sunshade with pvc pipe and PVC cloth.Xiang Chizhong injects the seawater that filters through 60 mesh sieve tulles, the depth of water 1.0～1.2m.April 28 evenly splashed with ammonium sulfate and superphosphate 3kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, " rich water king " 2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, " beneficial algae is plain " full pond of 1.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre wiring solution-forming.Threw in fertilized egg 0.75kg little inflation hatching on May 11 to the incubation division, treat incubating oosperm after, remove the hatching canopy, newly hatched larvae is gone into the pond.
Rose May 18 in the pond and to throw in wheel animalcule to keep in the water wheel borer population at 3～4/ml.Added seawater on May 21; Keeping the pond water is 1.2～1.5m; Topdress among the Xiang Chishui, 0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, " beneficial algae is plain " and " viable bacteria king " respectively are 1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, maintenance water transparence 30～35cm altogether to use urea and ammonium sulfate; Throw something and feed on a small quantity every day simultaneously artemia nauplii and copepoda are kept copepoda basically at 0.2～0.5/ml.Added seawater on May 26, keeping the pond water is 1.5～1.8m, topdresses among the Xiang Chishui; The kind consumption kept water transparence 30～35cm with May 21, began to tame the manufactured feed of ingesting; Feeding volume is looked fry and is ingested situation and decide; Through domestication in 4～7 days, can use manufactured feed fully, the manufactured feed of throwing something and feeding ever since.
June 20, receive oplegnathus fasciatus seedling 16.7 ten thousand tails, the long 4.03cm of average fork.
The consumption that topdresses is not limited to above-mentioned each routine scope, in practical application, is that criterion can be regulated usage amount voluntarily with the water clarity.
Claims (11)
1. the seedling-cultivating method of an oplegnathus fasciatus comprises the cultivation of incubating oosperm and larvae juvenile fish, and the seedling water temperature is controlled to be 21～24 ℃; The pH value is controlled to be 8.0～8.4; Bait is thrown in the hatching back when larvae juvenile fish is cultivated, bait is mainly wheel animalcule and halogen worm, it is characterized in that this seedling raising process carries out in outdoor ponds; And go into to apply in the water of forward direction pond, pond inorganic fertilizer and " rich water king " and " beneficial algae is plain " in fertilized egg, and the control water transparence is at 30～50cm; After hatching, apply inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king ", and the control water transparence is at 30～35cm to Chi Shuizhong.
2. the seedling-cultivating method of oplegnathus fasciatus as claimed in claim 1 is characterized in that before fertilized egg is gone into the pond, and it is biological in the pond, to cultivate foundation bait; Said cultivation foundation bait is biological, be the control pond depth of water be 1.0～1.2m, water temperature under 18～20 ℃ situation, in pond waters, apply fertilizer; Fertilising comprises that use inorganic fertilizer, consumption are 2～3kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, and use " rich water king "; Consumption is 1.5～2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, and uses " beneficial algae is plain ", and consumption is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre; After treating that water transparence is reduced to 40cm～50cm, in seawater, throw in SS type wheel animalcule, injected volume is 3～5/ml; After throwing in wheel animalcule, continue to apply fertilizer in this way to keep water clarity at 30cm～40cm.
3. the seedling-cultivating method of oplegnathus fasciatus as claimed in claim 1 is characterized in that in alevin stage, hatched after 5～7 days, observed water body SS type wheel animalcule quantity, kept SS type wheel animalcule at 3～4/ml through the way of throwing in SS type wheel animalcule.
4. the seedling-cultivating method of oplegnathus fasciatus as claimed in claim 1 is characterized in that between the incubation period and alevin stage, keeps water transparence at 30～35cm through appending inorganic fertilizer, and the inorganic fertilizer consumption is 1.5～2.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre.
5. the seedling-cultivating method of oplegnathus fasciatus as claimed in claim 1 is characterized in that in the postlarva phase, added seawater and made the depth of water remain on 1.2～1.5m; And topdress among the Xiang Chishui, at 30～35cm, promptly be that index is used inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king " to Chi Shui with the control water transparence with the water clarity; Each consumption respectively is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre; Observe copepoda quantity in the pond simultaneously,, keep copepoda at 0.2～0.5/ml through artemia nauplii and the copepoda of throwing something and feeding on a small quantity.
6. the seedling-cultivating method of oplegnathus fasciatus as claimed in claim 1; It is characterized in that at young stage, add seawater and make the depth of water remain on 1.5～1.8m, and topdress among the Xiang Chishui; To control water transparence at 30～35cm; Promptly be that index is used inorganic fertilizer and " beneficial algae is plain " and " viable bacteria king " to Chi Shui with the water clarity, each consumption respectively is 0.5～1kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre, the artifical compound feed of throwing something and feeding simultaneously.
7. like the seedling-cultivating method of claim 1 or 2 or 3 or 4 or 5 or 6 described oplegnathus fasciatus, it is characterized in that used inorganic fertilizer is one or more the cooperation in urea or superphosphate or sodium nitrate or the ammonium sulfate, splashes with the seawater wiring solution-forming during use.
8. like the seedling-cultivating method of claim 1 or 2 or 6 described oplegnathus fasciatus, it is characterized in that used Chi Shui, with ovum spore and the ovum biological of removing bigger aquatic animal with keeping tiny seawater through 60～80 purpose screen filtrations.
9. according to claim 1 or claim 2 the seedling-cultivating method of oplegnathus fasciatus is characterized in that when fertilized egg is gone into the pond fertilized egg injected volume is 0.3～0.5kg/ mu, a traditional unit of area, equal to 60 square zhang, and equivalent to 6.667 ares or 0.165 acre.
10. like the seedling-cultivating method of claim 1 or 2 or 4 described oplegnathus fasciatus; It is characterized in that before fertilized egg is gone into the pond, in the pond, cross the incubation division with the micro hole screen cloth, fertilized egg is dropped into hatching under little venting condition in the incubation division earlier; The micro hole screen cloth is removed in the hatching back, lets newly hatched larvae go into the pond.
11. the seedling-cultivating method of oplegnathus fasciatus as claimed in claim 9; It is characterized in that before fertilized egg is gone into the pond, in the pond, cross the incubation division with the micro hole screen cloth, fertilized egg is dropped into hatching under little venting condition in the incubation division earlier; The micro hole screen cloth is removed in the hatching back, lets newly hatched larvae go into the pond.
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| CN104082215B (en) * | 2014-07-27 | 2016-01-13 | 宁德市富发水产有限公司 | A kind of artificial raise seedling method of rock porgy |
| CN105325321A (en) * | 2014-08-12 | 2016-02-17 | 张栋国 | Sparus aurata culturing technology |
| CN107466918A (en) * | 2017-08-11 | 2017-12-15 | 天津市金水族水产养殖有限公司 | A kind of specification Propogation and culture method of snow porgy suitable for factory |
| CN110250048A (en) * | 2019-06-20 | 2019-09-20 | 天津鱼之悦观赏鱼养殖专业合作社 | A kind of mating system improving fancy carp survival rate of fish fry |
| CN110192535B (en) * | 2019-06-28 | 2021-03-16 | 海南晨海水产有限公司 | Outdoor artificial breeding method for Sichuan flute sea bream |
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| CN1799345A (en) * | 2004-12-30 | 2006-07-12 | 中国科学院海洋研究所 | Method for cultivation and propagation of parent fish of Japanese praaotfish |
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