CN109287540A - A kind of crab cultivation method suitable for freshwater aquiculture - Google Patents
A kind of crab cultivation method suitable for freshwater aquiculture Download PDFInfo
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- CN109287540A CN109287540A CN201811433549.4A CN201811433549A CN109287540A CN 109287540 A CN109287540 A CN 109287540A CN 201811433549 A CN201811433549 A CN 201811433549A CN 109287540 A CN109287540 A CN 109287540A
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- 239000013505 freshwater Substances 0.000 title claims abstract description 20
- 238000009360 aquaculture Methods 0.000 title claims abstract description 19
- 238000012364 cultivation method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 130
- 230000012447 hatching Effects 0.000 claims abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 6
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims abstract description 4
- 239000002985 plastic film Substances 0.000 claims abstract description 4
- 229920006255 plastic film Polymers 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 241000196324 Embryophyta Species 0.000 claims description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 241000894007 species Species 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- 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
- 235000012255 calcium oxide Nutrition 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- 201000010099 disease Diseases 0.000 claims description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000006213 oxygenation reaction Methods 0.000 claims description 4
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 3
- 244000105624 Arachis hypogaea Species 0.000 claims description 3
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 3
- 235000018262 Arachis monticola Nutrition 0.000 claims description 3
- 240000003826 Eichhornia crassipes Species 0.000 claims description 3
- 244000207740 Lemna minor Species 0.000 claims description 3
- 235000006439 Lemna minor Nutrition 0.000 claims description 3
- 244000207867 Pistia stratiotes Species 0.000 claims description 3
- 235000006440 Pistia stratiotes Nutrition 0.000 claims description 3
- 235000001855 Portulaca oleracea Nutrition 0.000 claims description 3
- 241001123263 Zostera Species 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000005276 aerator Methods 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 230000000366 juvenile effect Effects 0.000 claims description 3
- 235000020232 peanut Nutrition 0.000 claims description 3
- 241000195967 Anthoceros Species 0.000 claims 1
- 244000052355 Hydrilla verticillata Species 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 230000004083 survival effect Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000009313 farming Methods 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000252229 Carassius auratus Species 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 241000498251 Hydrilla Species 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000238424 Crustacea Species 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000001364 causal effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
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- 239000011782 vitamin Substances 0.000 description 1
- 239000003643 water by type Substances 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
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/60—Fishing; Aquaculture; Aquafarming
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Botany (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- Marine Sciences & Fisheries (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a kind of crab cultivation methods suitable for freshwater aquiculture, the following steps are included: mud sump selects: selection mud depth is no more than 20 centimetres of pond, the pond depth of water is maintained at 0.6-1.5 meters throughout the year, and several knolls for being higher by the water surface can be made in pond, portable water plant on knoll；The cultivation of bait: upper water and putting hatching in a suitable place to breed in pond kind, and carries out disinfection anti-evil before transplanting water plant to water plant；Maintenance: it is safeguarded before being put into river crab in pond bank surrounding using plastic film or with cement plate, prevents crab from escaping, then pond is comprehensively sterilized；Crab species put preparation in a suitable place to breed；Put crab species in a suitable place to breed；It feeds intake；Daily management；Collect: November can catch at crab.The utility model has the advantages that improving the cultivation survival rate of crab, accelerate the growth of crab, and crab is facilitated effectively to be shelled, increase economic efficiency, improves the quality of crab.
Description
Technical field
The present invention relates to technical field of aquaculture, it particularly relates to a kind of crab cultivation suitable for freshwater aquiculture
Method.
Background technique
Crab is also known as river crab, is fresh water crustacean, grows up in fresh water, crab delicious, full of nutrition, mesh
Before, crab is known as cuisines by more and more people, and at present due to the source of crab still with fishing based on, artificial culture
Work carries out less so that the crab of growth has been far from satisfying the eating requirements of people, although and in recent years by
Cultivating to supplement the needs in market for small area, does not alleviate the demand in market equally, also, propagate the technology of crab artificially yet
There are also many deficiencies, people are still not perfect the experience of artificial crab farming, and the water quality requirement of cultivation is not rigorous enough, makes it easy to
The doping of poisonous and harmful substance is caused, to reduce the survival rate of crab.
In conclusion the survival rate for how improving crab cultivation is current technical problem urgently to be solved.
Summary of the invention
Technical assignment of the invention is against the above deficiency, to provide a kind of crab cultivation method suitable for freshwater aquiculture,
To solve the problems, such as crab cultivation high survival rate.
The technical scheme of the present invention is realized as follows:
A kind of crab cultivation method suitable for freshwater aquiculture, comprising the following steps:
Mud sump selection: selection mud depth is no more than 20 centimetres of pond, and the pond depth of water is maintained at 0.6-1.5 meters throughout the year,
And several knolls for being higher by the water surface can be made in pond, portable water plant on knoll, otherwise river crab is easily burrowed, and is unfavorable for late
Between climb out of water surface activities；
The cultivation of bait: upper water and hatching is put in a suitable place to breed in pond kind, and is disappeared before transplanting water plant to water plant
The anti-evil of poison；
Maintenance: it is safeguarded, is prevented in pond bank surrounding using plastic film or with cement plate before being put into river crab
Only crab escapes, and is then comprehensively sterilized to pond, and should all remove in time in annual winter blocked up in the crab pool
Mud, make bottom of pond mud be no more than 10cm；
Crab species put preparation in a suitable place to breed: the drug of progress in 10-15 days is cleaned up the pond before putting crab species, have abundant water resources be allowed to dry water into
Row dry method is cleaned up the pond, and what inconvenience discharged water can be used pond cleaning；
It puts crab species in a suitable place to breed: purchase is impregnated 2-5 minutes into the water without disease-free and physical strong, the active juvenile crab that creeps is hurt,
Enter to set after taking-up 10 minutes, places into water and impregnate, until young crab gradually suctions moisture and is put into pond after adapting to water temperature；
It feeds intake: launch in annual June in March-bait of 30-40%, launch 40- annual August-October
65% bait；
Daily management: it is irregular to carrying out water injection in pond, and the water injection is that single note is single, avoids mutual dirt
Dye should build reservoir in the farm that industrial pollution and municipal contaminant water discharge area are established, and water source is through precipitation and purification or must
It is re-introduced into pond after the disinfection wanted, to prevent cause of disease from bringing into crab farming pond, and need to often carry out changing water, water 1 was being changed every 3-5 days
Secondary, each quantity of exchanged water is the 20%-45% of water, when meeting bad weather, can extend and change the water time, but must not exceed 7 days, with
Exempt from water quality to degenerate；
Collect: November can catch at crab.
Further, the most shallow place in the pond is 8-10cm, and can be set as the mire that the depth of water is different everywhere.
Further, the water plant includes duckweed, water hyacinth, water lettuce, hydrilla verticillata, eel grass, water peanut and goldfish
Algae.
Further, the quantity of putting in a suitable place to breed of the hatching is 3500-4500 tail per acre.
Further, the water surface in the pond is there is not allowed that oil film or offscum, and the artificial incrementss of suspended matter must not exceed
10 mg/litres.
Further, described to change the water time as early, evening, and avoid sunlight fierce noon, to prevent too big, the shadow that changes water temperature difference
The adaptation for ringing crab, the water for keeping the bottom of pond depth of water to be greater than 20-30 centimetres when changing water.
Further, water temperature is 15-30 DEG C in the pond, and transparency is 20-50 centimetres in pond, and the pH value in the pond is
7-9, the water dissolved oxygen are greater than 3 mg/litres.
Further, the dry method cleans up the pond and is splashed per acre with 75 kilograms of quick lime or 4-6 kilograms of bleaching powder to full pond,
The pond cleaning splashes to full pond using quick lime 25-35 mg/kg or 1 mg/kg of bleaching powder.
Further, 6-8 month water temperature increases, and opens oxygen-increasing device, three hours of oxygenation every three hours.
Further, the oxygen-increasing device includes aerator, immersible pump, water purifier.
Beneficial effects of the present invention:
1, the cultivation survival rate for improving crab, accelerates the growth of crab, and crab is facilitated effectively to be shelled, and mentions
High economic benefit improves the quality of crab.
2, by planting water plant in pond so that facilitate harmful ammoniacal nitrogen in absorption cell, nitrogen dioxide, organic plant,
Discharge oxygen, and can also stabilizing water quality effect, be conducive to the growth of crab, improve the yield of crab.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of flow chart of crab cultivation method suitable for freshwater aquiculture according to an embodiment of the present invention.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " transverse direction ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In the present invention
Description in, unless otherwise indicated, the meaning of " plurality " is two or more.In addition, term " includes " and its any change
Shape, it is intended that cover and non-exclusive include.
The present invention will be further explained below with reference to the attached drawings and specific examples.
Embodiment one, as shown in Figure 1, a kind of crab cultivation side suitable for freshwater aquiculture according to an embodiment of the present invention
Method, comprising the following steps:
Step S101: mud sump selection: selection mud depth is no more than 20 centimetres of pond, and the pond depth of water is maintained at throughout the year
0.6-1.5 meters, and several knolls for being higher by the water surface can be made in pond, portable water plant on knoll；
Step S103: the cultivation of bait: upper water and hatching is put in a suitable place to breed in pond kind, and to water before transplanting water plant
Grass carries out disinfection anti-evil；
Step S105: maintenance: before being put into river crab pond bank surrounding using plastic film or with cement plate into
Row maintenance, prevents crab from escaping, is then comprehensively sterilized to pond, and should all remove crab in time in annual winter
Blocked up mud in the pool makes bottom of pond mud be no more than 10cm；
Step S107: crab species put preparation in a suitable place to breed: the drug of progress in 10-15 days is cleaned up the pond before putting crab species, and that has abundant water resources can
It is allowed to dry water progress dry method to clean up the pond, what inconvenience discharged water can be used pond cleaning；
Step S109: crab species are put in a suitable place to breed: purchase is impregnated into the water without disease-free and physical strong, the active juvenile crab that creeps is hurt
2-5 minutes, enters to set after taking-up 10 minutes, place into water and impregnate, until young crab gradually suctions moisture and is put into after adapting to water temperature
Chi Zhong；
Step S111: it feeds intake: launch in annual June in March-bait of 30-40%, annual August-October
Launch the bait of 40-65%；
Step S113: daily management: it is irregular to carrying out water injection in pond, and the water injection is that single note is single,
It avoiding polluting mutually, and need to often carry out changing water, changed every 3-5 days water 1 time, each quantity of exchanged water is the 20%-45% of water,
When meeting bad weather, it can extend and change the water time, but must not exceed 7 days, in case water quality degenerates；
Step S115: collect: November can catch at crab.
The most shallow place of embodiment two, the pond is 8-10cm, and can be set as the mire that the depth of water is different everywhere, on knoll
Portable water plant, no side crab is easy to burrow, so that being unfavorable for night climbs out of water surface activities.
Embodiment two, the water plant include duckweed, water hyacinth, water lettuce, hydrilla verticillata, eel grass, water peanut and goldfish
Algae increases the nutrition inside pond, harmful substance in absorption cell.
Embodiment three, the hatching put quantity in a suitable place to breed as 3500-4500 tail per acre, hatching are put into pond, is adopted
It is cultivated with the method for mixed breeding, improves the production efficiency and survival rate of crab, increase economic benefit.
Example IV, the water surface in the pond is there is not allowed that oil film or offscum, and the artificial incrementss of suspended matter must not exceed
10 mg/litres.
Embodiment five, it is described to change the water time as early, evening, and avoid sunlight fierce noon, to prevent too big, the shadow that changes water temperature difference
The adaptation for ringing crab, the water for keeping the bottom of pond depth of water to be greater than 20-30 centimetres when changing water can rush mud when otherwise intaking, and
Crab is flooded, time slightly length will make crab suffocate.
Embodiment six, water temperature is 15-30 DEG C in the pond, and transparency is 20-50 centimetres in pond, and the pH value in the pond is
7-9, the water dissolved oxygen are greater than 3 mg/litres.
Embodiment seven, the dry method, which is cleaned up the pond, per acre splashes to full pond with 75 kilograms of quick lime or 4-6 kilograms of bleaching powder,
The pond cleaning splashes to full pond using quick lime 25-35 mg/kg or 1 mg/kg of bleaching powder.
Embodiment eight, 6-8 month water temperature increase, and open oxygen-increasing device, three hours of oxygenation every three hours.
Embodiment nine, the oxygen-increasing device include aerator, immersible pump, water purifier.
Concrete operating principle:
1. the height of crab yield depends primarily on the quantity of water plant and food organisms in the waters of pond, during the feeding process
The good water plant of kind is indispensable technical measures, ingests other than replenishing vitamins in addition to for crab, may also function as hidden effect, in addition
Can also harmful substance in absorption cell, therefore, for pond culture crab must kind of good water plant, and answered when transplanting water plant
The attention sterilizes anti-evil, and toxic and disease carrying germ water plant is prevented to be transplanted in pond the growth for influencing crab.
2. the miscellaneous crab in open country, harmful organisms and the various pathogens in pond is killed before putting in a suitable place to breed, carry out disinfection of cleaning up the pond
Work, prevent the death that germ is brought directly to cause into pond crab.
3. the pond water source for cultivating crab requires water sufficient, cleaning, without causal organism and toxic polluter, water
Water source is re-introduced into pond there is not allowed that oil film or offscum by face after precipitation and purification or necessary disinfection, to prevent disease
Original tape enters in crab farming pond, in addition, can take away part residual bait and excreta in crab pond by changing water, is conducive to improve substrate, can be with
It stimulating crab to shell, accelerates its growth, conditioning tank salinity water, water temperature can be played the role of and increase water oxygen by also starving, therefore,
To accomplish frequently to change water during crab is formed, to keep the fresh and water convection current of water quality that the shelling of crab can be promoted to grow.
4. it needs to control water flow in water inlet, should not be too violent, so as not to increasing the turbidity of water, to influence the life of crab
It is long.
The technical personnel in the technical field can readily realize the present invention with the above specific embodiments,.But it answers
Work as understanding, the present invention is not limited to above-mentioned specific embodiments.On the basis of the disclosed embodiments, the technical field
Technical staff can arbitrarily combine different technical features, to realize different technical solutions.
Claims (10)
1. a kind of crab cultivation method suitable for freshwater aquiculture, which comprises the following steps:
Mud sump selection: selection mud depth is no more than 20 centimetres of pond, and the pond depth of water is maintained at 0.6-1.5 meters, and pond throughout the year
In can make several knolls for being higher by the water surface, portable water plant on knoll；
The cultivation of bait: upper water and putting hatching in a suitable place to breed in pond kind, and it is anti-to carry out disinfection to water plant before transplanting water plant
Evil；
Maintenance: it is safeguarded before being put into river crab in pond bank surrounding using plastic film or with cement plate, prevents crab
Crab escapes, and is then comprehensively sterilized to pond, and should all remove silt blocked up in the crab pool in time in annual winter
Mud makes bottom of pond mud be no more than 10cm；
Crab species put preparation in a suitable place to breed: the drug of progress in 10-15 days is cleaned up the pond before putting crab species, and the water that is allowed to dry having abundant water resources is done
Method is cleaned up the pond, and what inconvenience discharged water can be used pond cleaning；
It puts crab species in a suitable place to breed: purchase being impregnated 2-5 minutes into the water without disease-free and physical strong, the active juvenile crab that creeps is hurt, is taken out
After enter to set 10 minutes, place into water and impregnate, until young crab gradually suctions moisture and is put into pond after adapting to water temperature；
It feeds intake: in the bait for carrying out launching 30-40% annual 3-6 month, launching the bait of 40-65% in annual 8-10 month
Material；
Daily management: it is irregular to carrying out water injection in pond, and the water injection is that single note is single, avoids polluting mutually,
And need to often carry out changing water, it was being changed every 3-5 days water 1 time, each quantity of exchanged water is the 20%-45% of water, meets bad weather
When, it can extend and change the water time, but must not exceed 7 days, in case water quality degenerates；
Collect: November can catch at crab.
2. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that the pond is most
Shallow place is 8-10cm, and can be set as the mire that the depth of water is different everywhere.
3. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that the water plant includes
Duckweed, water hyacinth, water lettuce, hydrilla verticillata, eel grass, water peanut and hornwort.
4. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that the hatching
Quantity is put in a suitable place to breed as 3500-4500 tail per acre.
5. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that the water in the pond
Face is there is not allowed that oil film or offscum, and the artificial incrementss of suspended matter must not exceed 10 mg/litres.
6. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that described to change the water time
For early, evening, and sunlight fierce noon is avoided, water temperature difference is too big to prevent changing, and influences the adaptation of crab, bottom of pond is kept when changing water
The depth of water is greater than 20-30 centimetres of water.
7. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that water temperature in the pond
Be 15-30 DEG C, transparency is 20-50 centimetres in pond, and the pH value in the pond is 7-9, the water dissolved oxygen be greater than 3 milligrams/
It rises.
8. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that the dry method is cleaned up the pond
It is splashed per acre with 75 kilograms of quick lime or 4-6 kilograms of bleaching powder to full pond, the pond cleaning is using quick lime 25-35 milli
G kg or 1 mg/kg of bleaching powder splash to full pond.
9. the crab cultivation method according to claim 1 suitable for freshwater aquiculture, which is characterized in that 6-8 month water temperature
It increases, opens oxygen-increasing device, three hours of oxygenation every three hours.
10. the crab cultivation method according to claim 9 suitable for freshwater aquiculture, which is characterized in that the oxygenation dress
It sets including aerator, immersible pump, water purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433549.4A CN109287540A (en) | 2018-11-28 | 2018-11-28 | A kind of crab cultivation method suitable for freshwater aquiculture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433549.4A CN109287540A (en) | 2018-11-28 | 2018-11-28 | A kind of crab cultivation method suitable for freshwater aquiculture |
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| Publication Number | Publication Date |
|---|---|
| CN109287540A true CN109287540A (en) | 2019-02-01 |
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| CN201811433549.4A Withdrawn CN109287540A (en) | 2018-11-28 | 2018-11-28 | A kind of crab cultivation method suitable for freshwater aquiculture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110326557A (en) * | 2019-07-12 | 2019-10-15 | 南京帅丰饲料有限公司 | The cultural method of crab and mandarin fish |
| CN112167122A (en) * | 2020-11-16 | 2021-01-05 | 昭通山鑫农业发展有限公司 | Crab culture pond and crab culture method |
| CN112825802A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Crab seedling cultivation method with plateau characteristics |
-
2018
- 2018-11-28 CN CN201811433549.4A patent/CN109287540A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110326557A (en) * | 2019-07-12 | 2019-10-15 | 南京帅丰饲料有限公司 | The cultural method of crab and mandarin fish |
| CN112825802A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Crab seedling cultivation method with plateau characteristics |
| CN112167122A (en) * | 2020-11-16 | 2021-01-05 | 昭通山鑫农业发展有限公司 | Crab culture pond and crab culture method |
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