CN110100717A - A kind of high viability, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method - Google Patents
A kind of high viability, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method Download PDFInfo
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- CN110100717A CN110100717A CN201910474406.6A CN201910474406A CN110100717A CN 110100717 A CN110100717 A CN 110100717A CN 201910474406 A CN201910474406 A CN 201910474406A CN 110100717 A CN110100717 A CN 110100717A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 241000906091 Lethrinus miniatus Species 0.000 title claims abstract description 30
- 230000000384 rearing effect Effects 0.000 title claims abstract description 30
- 230000035899 viability Effects 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 239000013535 sea water Substances 0.000 claims abstract description 42
- 241000700141 Rotifera Species 0.000 claims abstract description 25
- 241000251468 Actinopterygii Species 0.000 claims abstract description 16
- 241000238557 Decapoda Species 0.000 claims abstract description 14
- 241000276707 Tilapia Species 0.000 claims abstract description 11
- 241001247197 Cephalocarida Species 0.000 claims abstract description 9
- 241000239250 Copepoda Species 0.000 claims abstract description 6
- 241000595940 Notostraca Species 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims abstract description 6
- 230000012447 hatching Effects 0.000 claims description 38
- 241000195493 Cryptophyta Species 0.000 claims description 31
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 238000006213 oxygenation reaction Methods 0.000 claims description 12
- 235000012255 calcium oxide Nutrition 0.000 claims description 11
- 239000000292 calcium oxide Substances 0.000 claims description 11
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 10
- 238000000855 fermentation Methods 0.000 claims description 10
- 230000004151 fermentation Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 9
- 235000013601 eggs Nutrition 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 9
- 241000894006 Bacteria Species 0.000 claims description 8
- 230000000243 photosynthetic effect Effects 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 235000016425 Arthrospira platensis Nutrition 0.000 claims description 7
- 240000002900 Arthrospira platensis Species 0.000 claims description 7
- 235000015097 nutrients Nutrition 0.000 claims description 7
- 102000002322 Egg Proteins Human genes 0.000 claims description 6
- 108010000912 Egg Proteins Proteins 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 239000010813 municipal solid waste Substances 0.000 claims description 6
- 210000004681 ovum Anatomy 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims description 5
- 229940082787 spirulina Drugs 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 230000003442 weekly effect Effects 0.000 claims description 5
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 4
- 241000192700 Cyanobacteria Species 0.000 claims description 4
- 241000190950 Rhodopseudomonas palustris Species 0.000 claims description 4
- 238000005276 aerator Methods 0.000 claims description 4
- 241000133262 Nauplius Species 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 230000004083 survival effect Effects 0.000 abstract description 16
- 230000000052 comparative effect Effects 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 5
- 240000007594 Oryza sativa Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 230000036039 immunity Effects 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 235000002566 Capsicum Nutrition 0.000 description 2
- 239000006002 Pepper Substances 0.000 description 2
- 241000722363 Piper Species 0.000 description 2
- 235000016761 Piper aduncum Nutrition 0.000 description 2
- 235000017804 Piper guineense Nutrition 0.000 description 2
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- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
- A23K10/16—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
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- A—HUMAN NECESSITIES
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- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
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- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
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- 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
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- 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
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Abstract
The present invention provides a kind of high viability, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, comprising steps of (1) hatch fish roe；(2) cement nursery pond is selected；(3) newly hatched larvae is transferred in nursery pond, enters pond second week and rise, water temperature is risen to 25.5~27.5 DEG C, seawater rises to salinity 35.5 ± 0.6 with 0.5~1 salinity/day amplitude；After 30 ages in days, water temperature is risen to 27.5~28.5 DEG C, seawater rises to salinity 40.3 ± 0.5 with 0.5~1 salinity/day amplitude；After 60 ages in days, water temperature restores 22~25 DEG C, and seawater is with 1~1.5 salinity/day maintaining normal supply during the slack season of the range of decrease to salinity 32.5 ± 0.6；(4) fry feeds bait after entering pond 2~3 days, and bait is tilapia oosperm and wheel animalcule；Enter pond second week to rise, increase the density of wheel animalcule, artemia nauplii is added；After 30 ages in days, bait is that copepod larva, fairy shrimp and small shrimp seedling are fed；After 60 ages in days, bait is micro-granulated feed and small shrimp seedling；Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of the invention, can effectively improve the survival rate and growth rate of fry, to realize the Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus of scale.
Description
Technical field
The present invention relates to technical field of aquaculture, in particular to a kind of high viability, Seedling height rate flower tail pepper
Porgy artificial raise seedling method.
Background technique
Plectorhinchus cinctus (Plectorhynchus cinctus), belongs to Perciformes, Pomadasyidae, and Plectorhynchus Lacepede is commonly called as false packet
It is public.Plectorhinchus cinctus is subtropical zone, temperate zone shallow sea demersal fishes, is distributed mainly on the Indian Ocean and North Western Pacific, China south
Sea, the East Sea and the Huanghai Sea produce, on the south marine products amount it is larger, be the another new excellent economic fish of seawater cage culture in recent years, tool
Have the characteristics that thermophilic, proper salinity level are wide, and during the artificial breeding of Plectorhinchus cinctus, it is easy because of culture pond condition, water
The unreasonable nursery processing such as matter, water temperature, pH value and bait feeding regulation, makes the fry of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus be easy to draw
It rises uncomfortable and causes the speed of growth of fry slow, vulnerable, easily susceptible, especially newly hatched larvae to the process for growing into juvenile fish
In, the adaptive capacity to environment of fry is weak, and survival rate and rate of body weight gain are low, or even the phenomenon that be easy to appear Large Scale Death.
Summary of the invention
In consideration of it, the present invention proposes a kind of high viability, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, energy
The adaptability and immunity of enough effectively enhancing fries, to improve the survival rate and growth rate of Plectorhinchus cinctus.
The technical scheme of the present invention is realized as follows:
A kind of high viability, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, includes the following steps:
(1) hatch fish roe
The fertilized eggs choosing parent population natural spawning, inseminating naturally, are put into hatching after being rinsed with the filtered seawater of sand
In bucket, the micro- inflation Lentic hatching of gas stone is placed in hatching barrel, hatching water temperature is 23~30 DEG C, salinity 27.9 ± 0.5, pH8.2 ±
0.3, putting ovum density is 100~2,000,000/m3, change within every 3~5 hours that water is primary, each quantity of exchanged water is the one of hatching barrel volume
Half, to keep the pure and fresh of seawater in hatching barrel；
(2) nursery pond is handled
Select area for 30~65 square metres of cement nursery pond, top is opaque, and with fluorescent lamp adjusting intensity of illumination, light
It is 1000~3000lx according to intensity, the depth of water is 65~85cm, is equipped with gas stone inside pond and supplies oxygen；
Before the two weeks for carrying out nursery, cleaning and sterilizing is carried out to nursery pond using quick lime, quick lime dosage is often to stand
Square 15~25g of rice is repeated to be put into sand filtering sea, Dissolved Oxygen in Water 6mg/L or more, salinity 29.8 after rinsing 2~3 times with fresh water
± 0.6, water temperature is 22~25 DEG C；And it was carried out changing water with the filtered seawater of sand every 5 days, each quantity of exchanged water is nursery pool capacity
Long-pending 25~40%；
In nursery the last week, microalgae cultivation is carried out in nursery pond, microalgae includes 50~60% chlorellas, 15~20% Du
Family name algae, 10~15% spirulinas and 10~15% flat algaes and 5~10% photosynthetic bacterias, microalgae gross density in water body are as follows: 6.5 ×
106~7.5 × 106/ ml provides bait for newly hatched larvae and adjusts nursery pond water quality；
(3) fry enters domestication pond early period
Newly hatched larvae is transferred in the nursery pond by nursery pre-processing, cultivation density be 21.2~22.5 ten thousand tails/
m2, from the second week for entering pond, water temperature is warming up to 25.5~27.5 DEG C, and by seawater in pond with 0.5~1 salinity/day width
Degree is risen, until salinity is 35.5 ± 0.6；From after 30 ages in days, water temperature is continuously heating to 27.5~28.5 DEG C, and by pond
Middle seawater is risen with 0.5~1 salinity/day amplitude, until salinity is 40.3 ± 0.5；From after 60 ages in days, water temperature is restored
To 22~25 DEG C, seawater in pond is desalinated with 1~1.5 salinity/day range of decrease degree, until salinity is 32.5 ± 0.6；
(4) nursery daily management
Stage one: after fry enters pond 2~3 days, start to feed bait, bait is tilapia oosperm and wheel animalcule, keeps water
Tilapia oosperm density is 5~12/ml, 10~15/ml of wheel animalcule density in body；
Stage two: from the second week for entering pond, increase the density of wheel animalcule to 15~20/ml, and artemia is added without section children
Body, 5~10/ml of artemia nauplii density；
Stage three: from after 30 ages in days, the fairy shrimp and 10% that uses bait just to hatch for 60% copepod larva, 30%
Small shrimp seedling is fed, and is fed daily 1~3 time；
Stage four: from after 60 ages in days, use bait for 50% micro-granulated feed and 50% small shrimp seedling, the micro-granulated feed
To be in mass ratio 1:(5~7 by blue algae fermentation nutrients and iced trash fish powder) micro-granulated feed that is mixed, micro-granulated feed
Partial size 1-3mm is fed 2 times daily；From after 30 ages in days, specific feeding volume was adjusted according to the prey situation of fry, and from 30 days
After age, periodically plus microalgae, microalgae gross density is kept are as follows: 8.0~8.5 × 106/ml；From starting to feed after two weeks, every 3~4 days
A water body is periodically changed, each quantity of exchanged water is the 15%~20% of total amount.
The present invention is by hatching fertilized eggs in hatching barrel under the incubation condition compared with Low-salinity, to guarantee fish-egg
Hatching rate, and use Low-salinity and nursery pond after microalgae is cultivated to cultivate newly hatched larvae, meanwhile, entering
Pond initial stage to mid-term, the further interim domestication of point progress under conditions of high temperature and high salt degree to fry enhances newly hatched larvae
Water body adaptability, and according to the different domestication stages, different bait classification and feeding volume are accordingly set, prelarva is promoted
Ingest and enhance the immunity of prelarva, to effectively improve the survival rate and growth rate of Plectorhinchus cinctus fry, be more advantageous into
The Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of professional etiquette modelling promotes the use.Compared with prior art, the present invention has the advantages that
(1) hatched in hatching barrel by fertilized eggs, make the water that fertilized eggs are high in stable Low-salinity and stability
Effectively hatched under concrete conditions in the establishment of a specific crime, while strict control its hatching, pH value and putting ovum density etc., guarantees the stable hatching of fish-egg
Rate.
(2) by the processing of nursery pond, including using quick lime progress cleaning and sterilizing, and selected salinity adaptation range wide
Algae carry out microalgae cultivation, not only have adjusted fry pond water quality and provide bait, but also more effectively meet carry out fry
When entering pond domestication, guarantee the good condition of water quality for maintaining fry growth, to improve the survival rate of prelarva.
(3) by entering pond initial stage to mid-term, point interim domestication is carried out under conditions of high temperature and high salt degree to fry, and
The amplitude of variation of its salinity of strict control and it is different when long expiration, be gradually increased enhancing newly hatched larvae water body adaptability,
And according to the different domestication stages, different bait classification and feeding volume are accordingly set, especially in the stage four, uses one
The special micro-granulated feed of certainty ratio and small shrimp seedling are fed, and ingesting and enhancing the immune of prelarva for prelarva is effectively facilitated
Power, and then improve the survival rate and growth rate of fry.
It further illustrates, in step (2), the microalgae that microalgae is cultivated includes 52% chlorella, 16% Du Shi algae, 12% spiral
Algae and 12% flat algae and 8% photosynthetic bacteria, microalgae gross density in water body are as follows: 7.0 × 106/ml.Using above-mentioned a variety of microalgaes into
Row combination, and the microalgae density of water body is controlled, guarantee that fry grows in suitable water body environment, promotes effective life of fry
It is long.
It further illustrates, in step (3), in water temperature regulation, from spray head uniformly to the surrounding spray temperature difference < 2 in pond
DEG C high temperature or low temperature sand filter hot sea water.
It further illustrates, in step (4), nursery daily management further includes after starting feed 30 certainly, periodically being educated
The cleaning of Miao Chi is weekly removed the sundries for being gathered in bottom of pond and excrement using hose siphonage.Guarantee the water quality of nursery pond
Condition.
It further illustrates, in step (4), nursery daily management further includes water oxygenation processing, every 2 days unlatching aerators 3
~5 hours, Dissolved Oxygen in Water was 6.5mg/L or more during oxygenation, stopped oxygenation 2 hours when carrying out bait throwing in.
It further illustrates, in step (4), the blue algae fermentation nutrients is counted by ratio of weight and the number of copies, including withered grass bud is in packet
10~25 parts of bacillus, 8~10 parts of Rhodopseudomonas palustris and 65~80 parts of cyanobacteria.It is sought by using above-mentioned manufactured blue algae fermentation
It supports object and cooperates a certain amount of iced trash fish powder, the growth of fry can be effectively facilitated.
It further illustrates, in step (4), the Individual Size of the wheel animalcule in bait feeding stage one is 50~70 μm, and bait is thrown
The Individual Size for feeding the wheel animalcule in stage two is 150~200 μm.It is thrown according to the different phase of fry using different size of wheel animalcule
Hello, increase the food ration of fry, further increase growth rate.
It further illustrates, in step (4), before the bait feeding in bait feeding stage four, bait is moistened using clean seawater
It feeds after material, is uniformly fed along nursery pond surrounding again.The absorption of juvenile fish is more advantageous to by the water-moistened feed in sea.
Compared with prior art, the beneficial effects of the present invention are: by by fertilized eggs under the incubation condition compared with Low-salinity
Hatching barrel in hatched, to guarantee the hatching rate of fish-egg, and use Low-salinity and the nursery pond after microalgae is cultivated
Newly hatched larvae is cultivated, meanwhile, entering pond initial stage to mid-term, further to fry under conditions of high temperature and high salt degree point
Interim domestication is carried out, enhances the water body adaptability of newly hatched larvae, and according to the different domestication stages, accordingly set difference
Bait classification and feeding volume, promote the immunity of prelarva ingested and enhance prelarva, to effectively improve Plectorhinchus cinctus fish
The survival rate and growth rate of seedling are more advantageous to promoting the use for the Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method for carrying out scale.
Specific embodiment
In order to be best understood from the technology of the present invention content, specific embodiment is provided below, the present invention is described further.
Experimental method used in the embodiment of the present invention is conventional method unless otherwise specified.
Material used in the embodiment of the present invention, reagent etc., are commercially available unless otherwise specified.
A kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 1-, includes the following steps:
(1) hatch fish roe
The fertilized eggs choosing parent population natural spawning, inseminating naturally, are put into hatching after being rinsed with the filtered seawater of sand
In bucket, the micro- inflation Lentic hatching of gas stone is placed in hatching barrel, hatching water temperature is 23 DEG C, and salinity 27.4, pH7.9, putting ovum density is
1000000/m3, change within every 3 hours that water is primary, each quantity of exchanged water is the half of hatching barrel volume, to keep seawater in hatching barrel
It is pure and fresh；
(2) nursery pond is handled
Select area for 30 square metres of cement nursery pond, top is opaque, and with fluorescent lamp adjusting intensity of illumination, and illumination is strong
Degree is 1000lx, and depth of water 65cm, pond inside is equipped with gas stone and supplies oxygen；
Before the two weeks for carrying out nursery, cleaning and sterilizing is carried out to nursery pond using quick lime, quick lime dosage is often to stand
Square rice 15g, is repeated to be put into sand filtering sea after rinsing 2 times with fresh water, Dissolved Oxygen in Water 6mg/L or more, salinity 29.2, and water temperature is
22℃；And it was carried out changing water with the filtered seawater of sand every 5 days, each quantity of exchanged water is the 25% of nursery pool volume；
In nursery the last week, in nursery pond carry out microalgae cultivation, microalgae include 50% chlorella, 20% Du Shi algae,
15% spirulina and 10% flat algae and 5% photosynthetic bacteria, microalgae gross density in water body are as follows: 6.5 × 106/ ml, mentions for newly hatched larvae
For bait and adjust nursery pond water quality；
(3) fry enters domestication pond early period
Newly hatched larvae is transferred in the nursery pond by nursery pre-processing, cultivation density is 21.2 ten thousand tails/m2, enter certainly
The second week in pond rises, and water temperature is warming up to 25.5 DEG C, and seawater in pond is risen with 0.5 salinity/day amplitude, until salt
Degree is 34.1；From after 30 ages in days, water temperature is continuously heating to 27.5 DEG C, and by seawater in pond with the progress of 0.5 salinity/day amplitude
Rise, until salinity is 39.8；From after 60 ages in days, water temperature is restored to 22 DEG C, by seawater in pond with 1 salinity/day range of decrease degree
Desalinated, until salinity is 31.9；
(4) nursery daily management
Stage one: after fry enters pond 2 days, start to feed bait, bait is tilapia oosperm and wheel animalcule, is kept in water body
Tilapia oosperm density is 5/ml, 10/ml of wheel animalcule density；
Stage two: from the second week for entering pond, increase the density of wheel animalcule to 15/ml, and artemia nauplii is added, halogen
5/ml of worm nauplius density；
Stage three: from after 30 ages in days, the fairy shrimp and 10% that uses bait just to hatch for 60% copepod larva, 30%
Small shrimp seedling is fed, and is fed daily 1 time；
Stage four: from after 60 ages in days, use bait for 50% micro-granulated feed and 50% small shrimp seedling, the micro-granulated feed
To be in mass ratio micro-granulated feed that 1:5 is mixed, micro-granulated feed partial size by blue algae fermentation nutrients and iced trash fish powder
1mm is fed 2 times daily；
From after 30 ages in days, specific feeding volume is adjusted according to the prey situation of fry, and from after 30 ages in days, periodically plus micro-
Algae keeps microalgae gross density are as follows: 8.0 × 106/ml；From starting to feed after two weeks, periodically a water body is changed within every 3 days, each
Quantity of exchanged water is the 15% of total amount；From after 30 days for starting to feed, the cleaning of nursery pond is periodically carried out, uses hose siphon weekly
Method removes the sundries for being gathered in bottom of pond and excrement.
A kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 2-, includes the following steps:
(1) hatch fish roe
The fertilized eggs choosing parent population natural spawning, inseminating naturally, are put into hatching after being rinsed with the filtered seawater of sand
In bucket, the micro- inflation Lentic hatching of gas stone is placed in hatching barrel, hatching water temperature is 30 DEG C, and salinity 28.4, pH8.5, putting ovum density is
2000000/m3, change within every 5 hours that water is primary, each quantity of exchanged water is the half of hatching barrel volume, to keep seawater in hatching barrel
It is pure and fresh；
(2) nursery pond is handled
Select area for 65 square metres of cement nursery pond, top is opaque, and with fluorescent lamp adjusting intensity of illumination, and illumination is strong
Degree is 3000lx, and depth of water 85cm, pond inside is equipped with gas stone and supplies oxygen；
Before the two weeks for carrying out nursery, cleaning and sterilizing is carried out to nursery pond using quick lime, quick lime dosage is often to stand
Square rice 25g, is repeated to be put into sand filtering sea after rinsing 3 times with fresh water, Dissolved Oxygen in Water 6mg/L or more, salinity 30.4, and water temperature is
25℃；And it was carried out changing water with the filtered seawater of sand every 5 days, each quantity of exchanged water is the 40% of nursery pool volume；
In nursery the last week, in nursery pond carry out microalgae cultivation, microalgae include 60% chlorella, 15% Du Shi algae,
10% spirulina and 10% flat algae and 5% photosynthetic bacteria, microalgae gross density in water body are as follows: 7.5 × 106/ ml, mentions for newly hatched larvae
For bait and adjust nursery pond water quality；
(3) fry enters domestication pond early period
Newly hatched larvae is transferred in the nursery pond by nursery pre-processing, cultivation density is 22.5 ten thousand tails/m2, enter certainly
The second week in pond rises, and water temperature is warming up to 27.5 DEG C, and seawater in pond is risen with 1 salinity/day amplitude, until salinity
It is 36.1；From after 30 ages in days, water temperature is continuously heating to 28.5 DEG C, and seawater in pond is carried out with 1 salinity/day amplitude
It rises, until salinity is 40.8；From after 60 ages in days, water temperature is restored to 25 DEG C, by seawater in pond with 1.5 salinity/day range of decrease degree
Desalinated, until salinity is 33.1；In water temperature regulation, from spray head uniformly to 2 DEG C of < of surrounding spray temperature difference of pond
The sand of high temperature or low temperature filters hot sea water；
(4) nursery daily management
Stage one: after fry enters pond 3 days, start to feed bait, bait is tilapia oosperm and wheel animalcule, is kept in water body
Tilapia oosperm density is 12/ml, 15/ml of wheel animalcule density；Wheel animalcule Individual Size is 50 μm；
Stage two: from the second week for entering pond, increase the density of wheel animalcule to 20/ml, the Individual Size of wheel animalcule is 150 μ
m；And artemia nauplii is added, 10/ml of artemia nauplii density；
Stage three: from after 30 ages in days, the fairy shrimp and 10% that uses bait just to hatch for 60% copepod larva, 30%
Small shrimp seedling is fed, and is fed daily 3 times；
Stage four: from after 60 ages in days, use bait for 50% micro-granulated feed and 50% small shrimp seedling, the micro-granulated feed
To be in mass ratio micro-granulated feed that 1:7 is mixed, the blue algae fermentation battalion by blue algae fermentation nutrients and iced trash fish powder
Feeding object is counted by ratio of weight and the number of copies, including withered grass bud is in 10 parts of packet bacillus, 10 parts of Rhodopseudomonas palustris and 80 parts of cyanobacteria；Microparticle
Feed particle diameter 3mm is fed 2 times daily；It feeds after moistening bait using clean seawater, is uniformly fed along nursery pond surrounding again；
From after 30 ages in days, specific feeding volume is adjusted according to the prey situation of fry, and from after 30 ages in days, periodically plus micro-
Algae keeps microalgae gross density are as follows: 8.5 × 106/ml；From starting to feed after two weeks, periodically a water body is changed within every 4 days, each
Quantity of exchanged water is the 20% of total amount；Water oxygenation processing, every 2 days unlatching aerators 3 hours, Dissolved Oxygen in Water was during oxygenation
6.5mg/L or more stops oxygenation 2 hours when carrying out bait throwing in；From after 30 days for starting to feed, the clear of nursery pond is periodically carried out
Reason is weekly removed the sundries for being gathered in bottom of pond and excrement using hose siphonage.
A kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 3-, includes the following steps:
(1) hatch fish roe
The fertilized eggs choosing parent population natural spawning, inseminating naturally, are put into hatching after being rinsed with the filtered seawater of sand
In bucket, the micro- inflation Lentic hatching of gas stone is placed in hatching barrel, hatching water temperature is 26 DEG C, and salinity 27.9, pH8.3, putting ovum density is
1500000/m3, change within every 4 hours that water is primary, each quantity of exchanged water is the half of hatching barrel volume, to keep seawater in hatching barrel
It is pure and fresh；
(2) nursery pond is handled
Select area for 45 square metres of cement nursery pond, top is opaque, and with fluorescent lamp adjusting intensity of illumination, and illumination is strong
Degree is 2000lx, and depth of water 70cm, pond inside is equipped with gas stone and supplies oxygen；
Before the two weeks for carrying out nursery, cleaning and sterilizing is carried out to nursery pond using quick lime, quick lime dosage is often to stand
Square rice 20g, is repeated to be put into sand filtering sea after rinsing 3 times with fresh water, Dissolved Oxygen in Water 6mg/L or more, salinity 29.8, and water temperature is
23℃；And it was carried out changing water with the filtered seawater of sand every 5 days, each quantity of exchanged water is the 35% of nursery pool volume；
In nursery the last week, in nursery pond carry out microalgae cultivation, microalgae include 50% chlorella, 15% Du Shi algae,
10% spirulina and 15% flat algae and 10% photosynthetic bacteria, microalgae gross density in water body are as follows: 7.0 × 106/ ml is newly hatched larvae
Bait is provided and adjusts nursery pond water quality；
(3) fry enters domestication pond early period
Newly hatched larvae is transferred in the nursery pond by nursery pre-processing, cultivation density is 22.1 ten thousand tails/m2, enter certainly
The second week in pond rises, and water temperature is warming up to 26.5 DEG C, and seawater in pond is risen with 0.8 salinity/day amplitude, until salt
Degree is 35.58；From after 30 ages in days, water temperature is continuously heating to 28 DEG C, and by seawater in pond with the progress of 0.8 salinity/day amplitude
Rise, until salinity is 40.3；From after 60 ages in days, water temperature is restored to 23 DEG C, by seawater in pond with 1.2 salinity/day range of decrease
Degree is desalinated, until salinity is 32.5；In water temperature regulation, from spray head uniformly to 2 DEG C of < of surrounding spray temperature difference of pond
High temperature or low temperature sand filter hot sea water；
(4) nursery daily management
Stage one: after fry enters pond 3 days, start to feed bait, bait is tilapia oosperm and wheel animalcule, is kept in water body
Tilapia oosperm density is 8/ml, 12/ml of wheel animalcule density；Wheel animalcule Individual Size is 70 μm；
Stage two: from the second week for entering pond, increase the density of wheel animalcule to 18/ml, the Individual Size of wheel animalcule is 200 μ
m；And artemia nauplii is added, 8/ml of artemia nauplii density；
Stage three: from after 30 ages in days, the fairy shrimp and 10% that uses bait just to hatch for 60% copepod larva, 30%
Small shrimp seedling is fed, and is fed daily 2 times；
Stage four: from after 60 ages in days, use bait for 50% micro-granulated feed and 50% small shrimp seedling, the micro-granulated feed
To be in mass ratio micro-granulated feed that 1:6 is mixed, the blue algae fermentation battalion by blue algae fermentation nutrients and iced trash fish powder
Feeding object is counted by ratio of weight and the number of copies, including withered grass bud is in 25 parts of packet bacillus, 8 parts of Rhodopseudomonas palustris and 67 parts of cyanobacteria；Microparticle
Feed particle diameter 2mm is fed 2 times daily；It feeds after moistening bait using clean seawater, is uniformly fed along nursery pond surrounding again；
From after 30 ages in days, specific feeding volume is adjusted according to the prey situation of fry, and from after 30 ages in days, periodically plus micro-
Algae keeps microalgae gross density are as follows: 8.3 × 106/ml；From starting to feed after two weeks, periodically a water body is changed within every 4 days, each
Quantity of exchanged water is the 18% of total amount；Water oxygenation processing, every 2 days unlatching aerators 5 hours, Dissolved Oxygen in Water was during oxygenation
6.5mg/L or more stops oxygenation 2 hours when carrying out bait throwing in, after starting feed 30 certainly, periodically carries out the clear of nursery pond
Reason is weekly removed the sundries for being gathered in bottom of pond and excrement using hose siphonage.
Comparative example 1- is only changed the step in (2), microalgae according to a kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 3
The microalgae of cultivation includes 52% chlorella, 16% Du Shi algae, 12% spirulina and 12% flat algae and 8% photosynthetic bacteria, in water body
Microalgae gross density are as follows: 7.0 × 106/ ml, remaining step are same as Example 3.
Comparative example 2- only changes the step the microalgae in (2) according to a kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 3
In cultivation, microalgae is only single to be cultivated using chlorella, microalgae gross density in water body are as follows: 7.0 × 106/ ml, remaining step are equal
It is same as Example 3.
Comparative example 3- is only changed the step in (3) according to a kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 3, is maintained
Water temperature is 23 DEG C, carries out the salinity phasic Chang in such as step (3), remaining step is same as Example 3.
Comparative example 4- is only changed the step in (3) according to a kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 3, is maintained
Water salinity is 29.8, carries out the interim temperature change in such as step (3), remaining step is same as Example 3.
Comparative example 5- is only changed the step in (4), is being thrown according to a kind of Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of embodiment 3
In the stage four for feeding bait, use bait for 60% micro-granulated feed and 40% small shrimp seedling, remaining step is same as Example 3.
It will be by the growth during the Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus in embodiment above-described embodiment 1~3 and comparative example 1~5
Rate and survival rate are counted and are compared, the result is as follows:
According to upper table it is found that 1~3 Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method through the embodiment of the present invention, the life of nursery
Long rate and survival rate significantly improve, moreover, in embodiment 3, body length of the fry after entering pond 60 days can reach 4.2cm with
On, survival rate can reach 60%；In comparative example 1, after the ratio between the type of the microalgae of microalgae cultivation
It was found that the growth rate of nursery can further improve relative to embodiment 3, and the survival rate of its fry is suitable；And comparative example 2
In, only single to be cultivated using chlorella, the growth rate of fry is decreased obviously, and survival rate reduces；Comparative example 3 and 4
In, during fry enters pond domestication, the single interim adjustment for having carried out temperature or the interim adjustment of salinity, fry exist
During entering pond 14~60, growth rate is lower, and survival rate is significantly reduced, past when especially only having carried out salinity altercation
Toward the survival rate that can seriously affect fry；In comparative example 5, in the stage four for feeding bait, the dosage of micro-granulated feed is increased
Ratio has been found that the growth rate during 30~60 days of fry reduces, and survival rate also reduces.Therefore, through the invention
Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, can effectively enhance the adaptability and immunity of fry, to improve colored tail pepper
The survival rate and growth rate of porgy are, it can be achieved that promoting the use for the Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method of scale.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of high viability, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, it is characterised in that: including walking as follows
It is rapid:
(1) hatch fish roe
The fertilized eggs choosing parent population natural spawning, inseminating naturally, are put into hatching barrel after being rinsed with the filtered seawater of sand,
The micro- inflation Lentic hatching of gas stone is placed in hatching barrel, hatching water temperature is 23~30 DEG C, and salinity 27.9 ± 0.5, pH8.2 ± 0.3 is put
Ovum density is 100~2,000,000/m3, change within every 3~5 hours that water is primary, each quantity of exchanged water is the half of hatching barrel volume, to protect
Hold the pure and fresh of seawater in hatching barrel；
(2) nursery pond is handled
Select area for 30~65 square metres of cement nursery pond, top is opaque, and with fluorescent lamp adjusting intensity of illumination, and illumination is strong
Degree is 1000~3000lx, and the depth of water is 65~85cm, is equipped with gas stone inside pond and supplies oxygen；
Before the two weeks for carrying out nursery, cleaning and sterilizing is carried out to nursery pond using quick lime, quick lime dosage is every cubic metre
15~25g is repeated to be put into sand filtering sea after rinsing 2~3 times with fresh water, Dissolved Oxygen in Water 6mg/L or more, and salinity 29.8 ±
0.6, water temperature is 22~25 DEG C；And it was carried out changing water with the filtered seawater of sand every 5 days, each quantity of exchanged water is nursery pool volume
25~40%；
In nursery the last week, microalgae cultivation is carried out in nursery pond, microalgae includes 50~60% chlorellas, 15~20% Du Shi
Algae, 10~15% spirulinas and 10~15% flat algaes and 5~10% photosynthetic bacterias, microalgae gross density in water body are as follows: 6.5 × 106
~7.5 × 106/ ml provides bait for newly hatched larvae and adjusts nursery pond water quality；
(3) fry enters domestication pond early period
Newly hatched larvae is transferred in the nursery pond by nursery pre-processing, cultivation density is 21.2~22.5 ten thousand tails/m2, from
The second week for entering pond rises, and water temperature is warming up to 25.5~27.5 DEG C, and by seawater in pond with the progress of 0.5~1 salinity/day amplitude
Rise, until salinity is 35.5 ± 0.6；From after 30 ages in days, water temperature is continuously heating to 27.5~28.5 DEG C, and by seawater in pond
Risen with 0.5~1 salinity/day amplitude, until salinity is 40.3 ± 0.5；From after 60 ages in days, water temperature is restored to 22~
25 DEG C, seawater in pond is desalinated with 1~1.5 salinity/day range of decrease degree, until salinity is 32.5 ± 0.6；
(4) nursery daily management
Stage one: after fry enters pond 2~3 days, start to feed bait, bait is tilapia oosperm and wheel animalcule, is kept in water body
Tilapia oosperm density is 5~12/ml, 10~15/ml of wheel animalcule density；
Stage two: from the second week for entering pond, increase the density of wheel animalcule to 15~20/ml, and artemia nauplii is added, halogen
5~10/ml of worm nauplius density；
Stage three: from after 30 ages in days, the fairy shrimp and 10% shrimp that use bait just to hatch for 60% copepod larva, 30%
Seedling is fed, and is fed daily 1~3 time；
Stage four: from after 60 ages in days, use bait for 50% micro-granulated feed and 50% small shrimp seedling, the micro-granulated feed is served as reasons
Blue algae fermentation nutrients and iced trash fish powder are 1:(5~7 in mass ratio) micro-granulated feed that is mixed, micro-granulated feed partial size
1-3mm is fed 2 times daily；From after 30 ages in days, specific feeding volume is adjusted according to the prey situation of fry, and from after 30 ages in days,
Periodically add microalgae, keeps microalgae gross density are as follows: 8.0~8.5 × 106/ml；From starting to feed after two weeks, every 3~4 days periodically
A water body is changed, each quantity of exchanged water is the 15%~20% of total amount.
2. a kind of high viability according to claim 1, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, special
Sign is: in step (2), the microalgae that microalgae is cultivated includes 52% chlorella, 16% Du Shi algae, 12% spirulina and 12% flat algae
With 8% photosynthetic bacteria, microalgae gross density in water body are as follows: 7.0 × 106/ml。
3. a kind of high viability according to claim 1, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, special
Sign is: in step (3), in water temperature regulation, from spray head uniformly to 2 DEG C of < of surrounding spray temperature difference of the high temperature in pond or low
The sand of temperature filters hot sea water.
4. a kind of high viability according to claim 1, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, special
Sign is: in step (4), nursery daily management further includes periodically carrying out the cleaning of nursery pond after starting feed 30 certainly,
The sundries for being gathered in bottom of pond and excrement are removed using hose siphonage weekly.
5. a kind of high viability according to claim 1, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, special
Sign is: in step (4), nursery daily management further includes water oxygenation processing, and every 2 days unlatching aerators 3~5 hours, oxygenation
Period Dissolved Oxygen in Water is 6.5mg/L or more, stops oxygenation 2 hours when carrying out bait throwing in.
6. a kind of high viability according to claim 1, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, special
Sign is: in step (4), the blue algae fermentation nutrients is counted by ratio of weight and the number of copies, including withered grass bud in 10~25 parts of packet bacillus,
8~10 parts and 65~80 parts of cyanobacteria of Rhodopseudomonas palustris.
7. a kind of high viability according to claim 1, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, special
Sign is: in step (4), the Individual Size of the wheel animalcule in bait feeding stage one is 50~70 μm, the wheel in bait feeding stage two
The Individual Size of worm is 150~200 μm.
8. a kind of high viability according to claim 1, Seedling height rate Artificial Fry Rearing of Threeband Sweetlip Plectorhinchus Cinctus method, special
Sign is: in step (4), before the bait feeding in bait feeding stage four, feeding again after moistening bait using clean seawater, edge
Nursery pond surrounding is uniformly fed.
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Denomination of invention: Artificial seedling raising method of flower tail pepper snapper with high survival rate and high growth rate Effective date of registration: 20210928 Granted publication date: 20210806 Pledgee: CITIC Bank Haikou branch Pledgor: HAINAN CHENHAI AQUATIC Co.,Ltd. Registration number: Y2021980010243 |