CN110463638A - A method of effectively improving Scylla paramamosain juvenile crab desalination survival rate - Google Patents
A method of effectively improving Scylla paramamosain juvenile crab desalination survival rate Download PDFInfo
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- CN110463638A CN110463638A CN201910860541.4A CN201910860541A CN110463638A CN 110463638 A CN110463638 A CN 110463638A CN 201910860541 A CN201910860541 A CN 201910860541A CN 110463638 A CN110463638 A CN 110463638A
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- 230000000366 juvenile effect Effects 0.000 title claims abstract description 120
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 38
- 241001672730 Scylla paramamosain Species 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000004083 survival effect Effects 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 22
- 239000013535 sea water Substances 0.000 claims abstract description 18
- 238000012856 packing Methods 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims description 9
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000007844 bleaching agent Substances 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- CPKVUHPKYQGHMW-UHFFFAOYSA-N 1-ethenylpyrrolidin-2-one;molecular iodine Chemical compound II.C=CN1CCCC1=O CPKVUHPKYQGHMW-UHFFFAOYSA-N 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 241000238557 Decapoda Species 0.000 claims description 3
- 229920000153 Povidone-iodine Polymers 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229960001621 povidone-iodine Drugs 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- 206010063409 Acarodermatitis Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000040710 Chela Species 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 208000004880 Polyuria Diseases 0.000 description 1
- 241000447727 Scabies Species 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- MKUXAQIIEYXACX-UHFFFAOYSA-N aciclovir Chemical compound N1C(N)=NC(=O)C2=C1N(COCCO)C=N2 MKUXAQIIEYXACX-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000035619 diuresis Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 208000005687 scabies Diseases 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- 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
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- 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
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- 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
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- 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
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/10—Cleaning bottoms or walls of ponds or receptacles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a kind of methods for improving Scylla paramamosain juvenile crab survival rate, the following steps are included: the preparation in (1) juvenile crab pond: preparing two mouthfuls of water mud sumps, flatly with making adjustments seawater, conveniently changing the reservoir of water, another mouth is used as the juvenile crab pond of desalination juvenile crab；(2) prepare juvenile crab；(3) it carries out disinfection to juvenile crab；(4) desalination is carried out to juvenile crab；(5) juvenile crab is subjected to packing and transporting；(6) juvenile crab is put into the pond of cultivation.Using method of the invention, by, to the desalination of Scylla paramamosain, substantially increasing the survival rate of Scylla paramamosain dispensing before putting in a suitable place to breed, increasing the economic benefit of cultivation.
Description
Technical field
The invention belongs to technical field of aquaculture, and in particular to one kind effectively improves Scylla paramamosain juvenile crab desalination survival rate
Method.
Background technique
Scylla paramamosain bright in color is in cyanic colours, and shell is relatively thin and big chela is larger, first and last full, and taste is aromatic strongly fragrant when eating
Fine and tender taste.Scylla paramamosain contains 18 kinds of amino acid, and every 100 grams of edible parts contain 14.0 grams of protein, 2.5 grams fatty, carbon aquation
0.8 gram of object is closed, 135 milligrams of calcic, 139 milligrams of phosphorus, 13 milligrams of iron, vitamin A is up to 5980 international units.Six, July produces
Scylla paramamosain (weighing about 150~350 grams or so), have one unique faint scent when edible.
Scylla paramamosain has high medical value, and meat and internal organ can control scabies, dermatitis, clear sore, damp and hot, postpartum blood and close
Deng long-term consumption has the effect of inducing diuresis for removing edema, nourishing and strengthening Yin and Yang, for excellent aesthetic health care food.
Currently, Scylla paramamosain cultivation history is more than 200 years existing, by the end of the year 2016, Scylla paramamosain cultured area reaches
8.8 ten thousand mu, total output reaches 1.26 ten thousand tons, realizes more than 500,000,000 yuan of the output value, practitioner reaches more than 30,000 people.Currently, for artificial
The juvenile crab of cultivation requires to put young crab C4 phase individual in a suitable place to breed, and 5000/kilogram of specification is hereinafter, shell is hard, color is green, neat specification, appendage are neat
Entirely, sensitive without hurting, reflecting.But during pond is put in a suitable place to breed, the death rate is higher after juvenile crab is launched, and affects the cultivation of Scylla paramamosain
Benefit.
104621013 A of patent of invention CN discloses a kind of non-linear continuous desalination control method of river crab seedling, is included in tight
2-10 desalination pond is built in adjacent hatchery, and hatchery Water salinity is in 10-20 ‰.According to different desalination batches, adjust separately each
The salinity for desalinating Chi Zhongshui, primary at interval of replacementization pond desalination in 2-4 hours, whole desalination process needs 30-50 hours, every time
Desalinating gradient is to reduce Water salinity 0.1-2 ‰, makes whole desalination process that continuity be presented；Until there is no salinity, it is entire to desalinate
Process terminates.Water for desalination uses free of contamination surface water or is the phreatic water by softening, and desalination water temperature is 15-
18℃.The invention makes juvenile crab under the seawater salinity gradually adjusting of small gradient by the control to the non-linear desalination process of seawater
It gradually adapts to, avoids because salinity acute variation leads to the generation for phenomena such as juvenile crab is uncomfortable or even morbidity is dead, improve river crab seedling
Survival rate.But this method is not appropriate for Scylla paramamosain and carries out desalination, utilizes this method desalination Scylla paramamosain, juvenile crab
The death rate is more than 20 percentages.
Summary of the invention
In view of the deficiencies of the prior art, the present invention by provide it is a kind of improve Scylla paramamosain juvenile crab survival rate method, with
Improve the survival rate of Scylla paramamosain juvenile crab after launching toward pond.
To achieve the above object, the technical solution of the present invention is as follows:
A method of improving Scylla paramamosain juvenile crab survival rate, comprising the following steps:
(1) preparation in juvenile crab pond: preparing two mouthfuls of water mud sumps, another flatly with making adjustments seawater, conveniently change the reservoir of water
Mouth is used as the juvenile crab pond of desalination juvenile crab；
(2) prepare juvenile crab；
(3) it carries out disinfection to juvenile crab；
(4) desalination is carried out to juvenile crab；
(5) juvenile crab is subjected to packing and transporting；
(6) juvenile crab is put into the pond of cultivation.
Preferably, it in step (1), needs in accordance with the following steps to handle juvenile crab pond:
(a) juvenile crab pond is carried out disinfection and is cleaned；
(b) it is laid with ooxygenation facility；
(c) inject seawater into juvenile crab pond, salinity is adjusted to 12 ‰, seawater after precipitating, bleaching powder disinfection, the chlorine that disappears again
Filtering makes sea water advanced for 0.2m in last juvenile crab pond；
(d) artificial concealment is set.
Further, in step (a), to the disinfection way in juvenile crab pond are as follows: using bleaching powder disinfection after, reuse dodium thiosulfate into
Row neutralizes.
Preferably, in step (d), use alfa as artificial concealment.
Preferably, in step (2) juvenile crab be selected as just enter V phase and VI phase young crab.
Preferably, in step (3), disinfection way are as follows: the povidone iodine that dosage is 5ppm impregnates juvenile crab half small
When.
Preferably, in step (4), the desalination method of juvenile crab are as follows: provide the juvenile crab after disinfection in juvenile crab pond, crab
Seedling density is 700/m3, after so that juvenile crab is adapted to 6h under 12 ‰ saline environments, then by the salinity in juvenile crab pond with the speed of 2 ‰/6h
The slow salinity of being down to of degree is 8 ‰, then drops to 1 ‰ -2 ‰ salinity with the speed of 1 ‰/6h；For the desalination of juvenile crab pond seawater salinity
Reservoir is come from water.
Preferably, it in step (5), by the juvenile crab in step (4) by desalination, is salvaged using alfa and is put into foam
Water is not added in box, in foam box but is placed with moisturizing object；The size of foam box is 50cm × 50cm, places 200 juvenile crabs.
Preferably, in step (6), before juvenile crab is put into the pond of cultivation, first juvenile crab is put into big basin, pours into a little pond
Water, after allowing juvenile crab slowly to adapt to pond aquatic environment, then be poured slowly into pond.
Compared with prior art, advantages of the present invention:
The present invention, which passes through, puts the preceding desalination to Scylla paramamosain in a suitable place to breed, substantially increases the survival rate of Scylla paramamosain dispensing,
Increase the economic benefit of cultivation.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that Scylla paramamosain desalinates juvenile crab and survives number during desalination.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
A method of improving Scylla paramamosain juvenile crab survival rate, comprising the following steps:
(1) preparation in juvenile crab pond: preparing two mouthfuls of water mud sumps, another flatly with making adjustments seawater, conveniently change the reservoir of water
Mouth is used as the juvenile crab pond of desalination juvenile crab.
Juvenile crab pond is handled in accordance with the following steps:
(a) juvenile crab pond is carried out disinfection and is cleaned；Disinfection way are as follows: using bleaching powder disinfection after, reuse dodium thiosulfate into
Row neutralizes.
(b) it is laid with commercially available ooxygenation facility.
(c) inject seawater into juvenile crab pond, salinity is adjusted to 12 ‰, seawater after precipitating, bleaching powder disinfection, the chlorine that disappears again
Filtering makes sea water advanced for 0.2m in last juvenile crab pond.
(d) artificial concealment is set.Artificial veil selects alfa, easy to drawing materials, can also be directly by it in transport
It salvages and does moisturizing and prevent fighting.
(2) prepare juvenile crab.Juvenile crab is selected as the young crab for just entering V phase and VI phase, and experiment finds the two puberties
Juvenile crab had higher success rate compared to other periods.And the two puberties can avoid to a certain extent juvenile crab from desalinating
Shell in the process causes to be eaten food after being unable to shell death or shell by other crabs.
(3) it carries out disinfection to juvenile crab.Disinfection way are as follows: the povidone iodine that dosage is 5ppm impregnates juvenile crab half small
When.
(4) desalination is carried out to juvenile crab.The desalination method of juvenile crab are as follows: provide the juvenile crab after disinfection into juvenile crab pond
Interior, juvenile crab density is 700/m3, after so that juvenile crab is adapted to 6h under 12 ‰ saline environments, then by the salinity in juvenile crab pond with 2 ‰/6h
The slow salinity of being down to of speed be 8 ‰, then 1 ‰ -2 ‰ salinity are dropped to the speed of 1 ‰/6h；It is light for juvenile crab pond seawater salinity
That changes comes from reservoir with water.
(5) method that juvenile crab is transported and is put into the native pool.
Juvenile crab packing and transporting method: by by the juvenile crab of desalination, being salvaged using alfa and be put into foam box, foam
Be not added water in box, according to 50cm × 50cm in foam box, place 200, density should not excessively high the inside need to place moisturizing object (such as
Wet towel, wet sponge or water plant),.
Before juvenile crab is put into the pond of cultivation, first juvenile crab is put into big basin, the water in a little pond is poured into, juvenile crab is allowed slowly to fit
After answering pond water quality environment, then it is poured slowly into pond.
Embodiment 2
Prepare juvenile crab more than 6100 of each developmental stage, according to the method for 1 desalination of embodiment, by the juvenile crab after disinfection
It provides in juvenile crab pond, juvenile crab density is 700/m3, after so that juvenile crab is adapted to 6h under 12 ‰ saline environments, then by juvenile crab pond
Salinity drops to 1 ‰ -2 ‰ salinity for 8 ‰, then with the speed of 1 ‰/6h with the slow salinity of being down to of the speed of 2 ‰/6h.Juvenile crab survives
Number is shown in Fig. 1, and as table 1 counts the juvenile crab death rate.
The death rate of Scylla paramamosain desalination juvenile crab during 1. desalination of table
| Salinity | 12‰-8‰ | 8‰-4‰ | 4‰-2‰ | 2‰-1‰ |
| The death rate | 0.49% | 0.76% | 1.46% | 1.69% |
The exploration to Scylla paramamosain desalination condition through the invention, considerably increases it can be seen from Fig. 1 and table 1
Scylla paramamosain juvenile crab survives number, reduces the death rate of Scylla paramamosain.By desalination, the death rate of Scylla paramamosain is few
In 1.7%.The specification of dead juvenile crab is counted in experimental project, the juvenile crab death rate of V phase phase VI is minimum, therefore, this Shen
It please select to put in a suitable place to breed the juvenile crab of V phase and VI phase.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. a kind of method for improving Scylla paramamosain juvenile crab survival rate, which comprises the following steps:
(1) preparation in juvenile crab pond: preparing two mouthfuls of water mud sumps, flatly with making adjustments seawater, conveniently change the reservoir of water, another mouthful of use
Make the juvenile crab pond of desalination juvenile crab；
(2) prepare juvenile crab；
(3) it carries out disinfection to juvenile crab；
(4) desalination is carried out to juvenile crab；
(5) juvenile crab is subjected to packing and transporting；
(6) juvenile crab is put into the pond of cultivation.
Preferably, it in step (1), needs in accordance with the following steps to handle juvenile crab pond:
(a) juvenile crab pond is carried out disinfection and is cleaned；
(b) it is laid with ooxygenation facility；
(c) inject seawater into juvenile crab pond, salinity is adjusted to 12 ‰, seawater after precipitating, bleaching powder disinfection, the chlorine that disappears after
Filter makes sea water advanced for 0.2m in last juvenile crab pond；
(d) artificial concealment is set.
2. the method according to claim 1 for improving Scylla paramamosain juvenile crab survival rate, it is characterised in that: right in step (a)
The disinfection way in juvenile crab pond are as follows: after bleaching powder disinfection, reuse dodium thiosulfate and neutralized.
3. the method according to claim 2 for improving Scylla paramamosain juvenile crab survival rate, it is characterised in that: in step (d), make
Use alfa as artificial concealment.
4. the method according to claim 3 for improving Scylla paramamosain juvenile crab survival rate, it is characterised in that: crab in step (2)
Seedling is selected as the young crab for just entering V phase and VI phase.
5. the method according to claim 1 for improving Scylla paramamosain juvenile crab survival rate, it is characterised in that: in step (3), disappear
Malicious mode are as follows: dosage is that juvenile crab is impregnated half an hour by the povidone iodine of 5ppm.
6. the method according to claim 4 for improving Scylla paramamosain juvenile crab survival rate, it is characterised in that: in step (4), crab
The desalination method of seedling are as follows: provide the juvenile crab after disinfection in juvenile crab pond, juvenile crab density is 700/m3, juvenile crab is made to exist
After adapting to 6h under 12 ‰ saline environments, then by the salinity in juvenile crab pond with the slow salinity of being down to of the speed of 2 ‰/6h for 8 ‰, then with 1 ‰/
The speed of 6h drops to 1 ‰ -2 ‰ salinity；Reservoir is come from water for the desalination of juvenile crab pond seawater salinity.
7. the method according to claim 6 for improving Scylla paramamosain juvenile crab survival rate, it is characterised in that:, will in step (5)
It by the juvenile crab of desalination in step (4), is salvaged and is put into foam box using alfa, water is not added in foam box but placed
There is moisturizing object, the size of foam box is 50cm × 50cm, places 200 juvenile crabs.
8. the method according to claim 6 for improving Scylla paramamosain juvenile crab survival rate, it is characterised in that: in step (6), crab
Before seedling is put into the pond of cultivation, first juvenile crab is put into big basin, the water in a little pond is poured into, juvenile crab is allowed slowly to adapt to pond water quality
After environment, then it is poured slowly into pond.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114451337A (en) * | 2022-02-24 | 2022-05-10 | 浙江春归雁生态农业科技有限公司 | Method for breeding Scylla paramamosain in pond by saline-alkali water in inner Mongolia plateau saline-alkali soil |
| CN114600809A (en) * | 2022-03-10 | 2022-06-10 | 浙江春归雁生态农业科技有限公司 | Method for polyculture of prawns and scylla paramamosain in saline-alkali pond along yellow watershed |
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| CN101218901A (en) * | 2008-01-22 | 2008-07-16 | 中国水产科学研究院淡水渔业研究中心 | Seedling desalinating and stocking method for fresh water aquiculture of mud crab |
| CN102884995A (en) * | 2012-09-21 | 2013-01-23 | 中国水产科学研究院东海水产研究所 | Desalination cultivation method for green mud crab early larvae |
| CN108522367A (en) * | 2018-05-09 | 2018-09-14 | 上海市水产研究所 | A kind of method of cabezon room heat source |
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2019
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Application publication date: 20191119 |