CN109220930A - A kind of aquaculture method of cray - Google Patents
A kind of aquaculture method of cray Download PDFInfo
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- CN109220930A CN109220930A CN201811396500.6A CN201811396500A CN109220930A CN 109220930 A CN109220930 A CN 109220930A CN 201811396500 A CN201811396500 A CN 201811396500A CN 109220930 A CN109220930 A CN 109220930A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000009360 aquaculture Methods 0.000 title claims abstract description 31
- 244000144974 aquaculture Species 0.000 title claims abstract description 31
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- 241000238557 Decapoda Species 0.000 claims abstract description 54
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 18
- 238000004659 sterilization and disinfection Methods 0.000 claims description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 claims description 9
- 229960005069 calcium Drugs 0.000 claims description 9
- 229910052791 calcium Inorganic materials 0.000 claims description 9
- 239000011575 calcium Substances 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 9
- 235000012255 calcium oxide Nutrition 0.000 claims description 9
- 201000010099 disease Diseases 0.000 claims description 9
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 9
- 238000006213 oxygenation reaction Methods 0.000 claims description 7
- 241000894006 Bacteria Species 0.000 claims description 6
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 6
- 229940062672 calcium dihydrogen phosphate Drugs 0.000 claims description 6
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 241000238565 lobster Species 0.000 claims description 6
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 6
- 239000013505 freshwater Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
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- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 240000003826 Eichhornia crassipes Species 0.000 claims description 3
- 244000052355 Hydrilla verticillata Species 0.000 claims description 3
- 241001465754 Metazoa Species 0.000 claims description 3
- 241000237536 Mytilus edulis Species 0.000 claims description 3
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 3
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 3
- 244000207867 Pistia stratiotes Species 0.000 claims description 3
- 235000006440 Pistia stratiotes Nutrition 0.000 claims description 3
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- 241001123263 Zostera Species 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 238000003306 harvesting Methods 0.000 claims description 3
- 230000012447 hatching Effects 0.000 claims description 3
- 230000036039 immunity Effects 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 3
- 230000002262 irrigation Effects 0.000 claims description 3
- 239000002085 irritant Substances 0.000 claims description 3
- 231100000021 irritant Toxicity 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- 235000020638 mussel Nutrition 0.000 claims description 3
- 230000000243 photosynthetic effect Effects 0.000 claims description 3
- 238000003908 quality control method Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 235000013599 spices Nutrition 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 235000015099 wheat brans Nutrition 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 2
- MBLBDJOUHNCFQT-LXGUWJNJSA-N aldehydo-N-acetyl-D-glucosamine Chemical compound CC(=O)N[C@@H](C=O)[C@@H](O)[C@H](O)[C@H](O)CO MBLBDJOUHNCFQT-LXGUWJNJSA-N 0.000 claims 1
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- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 235000013372 meat Nutrition 0.000 abstract description 4
- 238000009395 breeding Methods 0.000 abstract description 3
- 230000001488 breeding effect Effects 0.000 abstract description 3
- 208000035473 Communicable disease Diseases 0.000 abstract description 2
- 208000035240 Disease Resistance Diseases 0.000 abstract description 2
- 230000005784 autoimmunity Effects 0.000 abstract description 2
- 230000018109 developmental process Effects 0.000 abstract description 2
- 230000036541 health Effects 0.000 abstract description 2
- 208000015181 infectious disease Diseases 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 9
- 235000013305 food Nutrition 0.000 description 4
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a kind of aquaculture methods of cray, according to the habit of cray, grasp the health that the growth characteristic of cray makes shrimp seedling that cray be effectively guaranteed in developmental process, aquatic plant is planted in pond establishes benign eco-environment, it is played for cray and feeding, water quality is timely and effectively purified simultaneously, processing, effectively reduce the probability of the infectious disease of cray, improve resistance, promote autoimmunity, and the cray delicious meat cultivated, yield is high, improve breeding income, cray aquaculture method provided by the invention improves the disease resistance of cray, cray is reduced in the death rate of shelling phase, improve yield, improve economic benefit.
Description
Technical field
The present invention relates to crayfish breeding technique field more particularly to a kind of aquaculture methods of cray.
Background technique
In recent years, cray market is economic freshwater shrimps, because meat flavour is delicious wide welcomed by the people.Because of its omnivorousness, life
Long speed is fast, adaptable and absolute competitive advantage is formed in local environment.Its range of ingesting includes water plant, algae
Class, aquatic insect, animal carcass etc., food are also killed each other when deficient scarce.Cray has become important warp in China in recent years
Help breed variety.
With the continuous improvement of people's living standards, people are higher and higher to quality of life requirement, to food quality requirement
Also very high, people to the demand of nutritive value cray abundant also in very fast growth, but small dragon currently on the market
Shrimp yield is not able to satisfy the urgent need of people, since current Water quality is by different degrees of pollution, so that cray
Living environment constantly deteriorates, and cray is caused easily to catch, meanwhile, cray living environment has limitation, at present
Freshwater crayfish is propagated artificially there are certain drawback, and the meat that cray can not be effectively ensured is full, it would be highly desirable to improve.
Summary of the invention
The object of the invention is to remedy the disadvantages of known techniques, provides a kind of aquaculture method of cray.
The present invention is achieved by the following technical solutions:
A kind of aquaculture method of cray, comprising the following steps:
(1) pond condition: selection is had abundant water resources, irrigation and drainage are convenient, water holding capacity is strong, water quality is good, fertile soil, area 3-
5 mu of pond, depth of water 1m or so are dug on the inside of the ridge of pond for the place inhabited that burrows, and the outer ridge around pond will have 1: 2.5
The gradient, the outer high 2m or more in the ridge, 0.5m high is arranged in 1.5m or more, and in surrounding in pond stalk width, and does one on the inner wall around pond
The smooth anti-escape measure of layer, is arranged oxygenation measure, and eel grass, hydrilla verticillata, Eichhornia crassipes, water lettuce, water are in addition planted in pond
The plants such as peanut；
(2) water quality adjustment: putting preceding strict sterilization in a suitable place to breed, controls water quality pH, improves water body pH value, water temperature control using quick lime
For system at 20 DEG C, dissolved oxygen should be in 20cm or so in 3-5mg/L, transparency；
(3) selection of shrimp seedling: when launching shrimp seedling, same pond selects the consistent seed of size specification, disposably to put
Foot, selection is physical strong, appendage is complete, disease-free shrimp seedling carefree, vitality is indomitable；
(4) shrimp seedling is launched:
A, summer put in a suitable place to breed with put current year hatching first young shrimp based on, put the time in a suitable place to breed in mid or late July, put rule in a suitable place to breed per acre
Lattice are young ten thousand tail of shrimp 3-4 of 0.8cm or more；
B, autumn puts in a suitable place to breed to put based on the big specification shrimp seedling or shrimp species that current year cultivates, and puts the time in a suitable place to breed in mid-August to September,
Shrimp seedling specification is 1.2cm or so, puts ten thousand tail of 2.5-3 in a suitable place to breed per acre, and shrimp species specification is 2.5-3 centimetres, puts ten thousand tail of 1.5-2 in a suitable place to breed per acre；
C, Winter-Spring was put in a suitable place to breed generally in December or March in next year-April, was not met based on the shrimp of current year listing specification with putting in a suitable place to breed,
It puts -2 ten thousand tail of 1.5 ten thousand tail in a suitable place to breed per acre, is cultivated by winter and spring, listed to harvesting in July in June -；The food of 3-5% is used before putting in a suitable place to breed
Salt water dipping 10min carries out disinfection to pond with quick lime before putting in a suitable place to breed；
(5) bait feeding: daily daily ration, feeding quantity, which is subject to, has enough, eats up, not staying residual bait, feeds daily 2 times, the morning and evening each 1
Secondary, because cray mainly feeds at night, evening feeding volume accounts for the 70%-80% of full-time bait, and bait will be thrown in pool side shallow water
In, whens large quantities of shrimp shells, throws less, after shell to throw more；
(6) daily management: a, Water-quality control: being used alternatingly photosynthetic bacteria and quick lime carries out full pool spilling head to improve water
Matter adjusts water pH value, reduces ammonia-nitrogen content in pond, changes 1 new water every 10-15 days notes when there is allogenic water note to change, every time
Quantity of exchanged water is the 1/3 of former pond water, when bad weather, to reduce daily ration, feeding quantity or stop bait throwing in, skim in time remaining in pond
Bait and sundries keep pond cleaning, if discovery lobster is slow in reacting, when trip collection swashes to bank, then illustrate anoxic, timely
Aerator oxygenation or the new water of filling are opened, water transparence control will suitably deepen water when weather overheat in 35cm or more,
To stablize water water temperature；
B, while periodically carrying out disinfection to water body, multiannensional-sine, calcium tablet, lactic acid disease control: are added in feed
Bacterium etc. is monthly splashed with the full pool of 15-20g/m3 tea seed cake leachate with enhancing the immunity of cray, and monthly using primary fine
Worm is net, while being spaced the generation for preventing disease using water quality improvement king etc. in one week；
C, shell period management: when the shelling of a large amount of crays, hypocalcia is in water body to meet the needs of cray hard shell, institute
It is to replenish the calcium with very important person, the shelling phase is for oral administration using 0.5% additive amount spice using ionized calcium, or is directly sprinkled using calcium dihydrogen phosphate
During which sprinkler keeps water body to stablize, is forbidden to use dripping of irritant drugs；
(7) timely fishing: fishing is adhered to patrolling the pool for first 15 days, the growth tendency of cray is grasped in time, when cray weight
It is caught in due course when up to 50g or more, vying each other between reduction leads to death.
A kind of aquaculture method of cray, the cultivated area of water plant described in step (1) are to account for pond area
30-35%.
A kind of aquaculture method of cray, pond water quality pH value described in step (2) are 7-8.
A kind of aquaculture method of cray, shrimp seedling described in step (4) launch in when putting shrimp species in a suitable place to breed with 3-4%'s
Salt water washing bath 6-10min disinfection.
A kind of aquaculture method of cray, bait described in step (5) be after spiral shell or freshwater mussel are crushed and
Dregs of beans class, mixing dish leaf class, wheat, wheat bran are stirred, the shrimp seedling phase based on vegetal bait, according to the 15-20% of weight
Feeding volume feed, at shrimp based on animal bait, fed at shrimp according to the feeding volume of weight 5-10%.
A kind of aquaculture method of cray, water inlet the screen to filtrate, prevents in water quality management described in step (6)
Harmful organisms enter, and water temperature control is at 20 DEG C ± 2 DEG C.
A kind of aquaculture method of cray, described in step (6) shelling period management in calcium dihydrogen phosphate use
Frequency be monthly, it is 2-4kg/ mus each.
A kind of aquaculture method of cray, catching method described in step (7) are with lobster basket, cage, purse seine
Catching method, catch stay greatly it is small.
The invention has the advantages that habit of the present invention according to cray, the growth characteristic for grasping cray make shrimp seedling
The health of cray is effectively guaranteed in developmental process, aquatic plant is planted in pond and establishes benign eco-environment, is supplied
Cray plays and feeding, while timely and effectively purifying, handling to water quality, effectively reduces the infectious disease of cray
Probability improves resistance, promotes autoimmunity, and cray delicious meat, the yield cultivated are high, improve breeding income,
Cray aquaculture method provided by the invention improves the disease resistance of cray, reduces cray in the death of shelling phase
Rate improves yield, improves economic benefit.
Specific embodiment
A kind of aquaculture method of cray, comprising the following steps:
(1) pond condition: selection is had abundant water resources, irrigation and drainage are convenient, water holding capacity is strong, water quality is good, fertile soil, area 3
The pond of mu, depth of water 1m or so are dug on the inside of the ridge of pond for the place inhabited that burrows, and the outer ridge around pond will have 1: 2.5
The gradient, the outer high 2m or more in the ridge, 0.5m high is arranged in 1.5m or more, and in surrounding in pond stalk width, and does one on the inner wall around pond
The smooth anti-escape measure of layer, is arranged oxygenation measure, and eel grass, hydrilla verticillata, Eichhornia crassipes, water lettuce, water are in addition planted in pond
Peanut etc.
Plant；
(2) water quality adjustment: putting preceding strict sterilization in a suitable place to breed, controls water quality pH, improves water body pH value, water temperature control using quick lime
For system at 20 DEG C, dissolved oxygen should be in 20cm or so in 3mg/L, transparency；
(3) selection of shrimp seedling: when launching shrimp seedling, same pond selects the consistent seed of size specification, disposably to put
Foot, selection is physical strong, appendage is complete, disease-free shrimp seedling carefree, vitality is indomitable；
(4) shrimp seedling is launched:
A, summer put in a suitable place to breed with put current year hatching first young shrimp based on, put the time in a suitable place to breed in mid or late July, put rule in a suitable place to breed per acre
Lattice are 30,000 tail of young shrimp of 0.8cm or more；
B, autumn puts in a suitable place to breed to put based on the big specification shrimp seedling or shrimp species that current year cultivates, and puts the time in a suitable place to breed in mid-August to September,
Shrimp seedling specification is 1.2cm or so, puts 2.5 ten thousand tails in a suitable place to breed per acre, and shrimp species specification is 2.5 centimetres, puts 1.5 ten thousand tails in a suitable place to breed per acre；
C, Winter-Spring put in a suitable place to breed generally December or next year 3 month in and month out, do not met based on the shrimp of current year listing specification with putting in a suitable place to breed, often
Mu puts 1.5 ten thousand tail, ten thousand tail in a suitable place to breed, cultivates by winter and spring, to 6 harvesting listings month in and month out；Before putting in a suitable place to breed with 3% saline solution dipping
10min carries out disinfection to pond with quick lime before putting in a suitable place to breed；
(5) bait feeding: daily daily ration, feeding quantity, which is subject to, has enough, eats up, not staying residual bait, feeds daily 2 times, the morning and evening each 1
Secondary, because cray mainly feeds at night, evening feeding volume accounts for the 70%% of full-time bait, and bait will be thrown in pool side shallow water,
It is thrown less when large quantities of shrimp shells, it is after shell to throw more；
(6) daily management: a, Water-quality control: being used alternatingly photosynthetic bacteria and quick lime carries out full pool spilling head to improve water
Matter adjusts water pH value, reduces ammonia-nitrogen content in pond, changes 1 new water every 10 days notes when there is allogenic water note to change, changes water every time
Amount is the 1/3 of former pond water, when bad weather, to reduce daily ration, feeding quantity or stop bait throwing in, skim residual bait in pond in time
And sundries, pond cleaning is kept, if discovery lobster is slow in reacting, when trip collection swashes to bank, then illustrates anoxic, to open increasing in time
The oxygenation of oxygen machine or the new water of filling, water transparence control will deepen water, suitably when weather overheat in 35cm or more with steady
Determine water water temperature；
B, while periodically carrying out disinfection to water body, multiannensional-sine, calcium tablet, lactic acid disease control: are added in feed
Bacterium etc. is monthly splashed with the full pool of 15g/m3 tea seed cake leachate with enhancing the immunity of cray, and monthly using primary fine worm
Only, while the generation for preventing disease using water quality improvement king etc. in one week is spaced；
C, shell period management: when the shelling of a large amount of crays, hypocalcia is in water body to meet the needs of cray hard shell, institute
It is to replenish the calcium with very important person, the shelling phase is for oral administration using 0.5% additive amount spice using ionized calcium, or is directly sprinkled using calcium dihydrogen phosphate
During which sprinkler keeps water body to stablize, is forbidden to use dripping of irritant drugs；
(7) timely fishing: fishing is adhered to patrolling the pool for first 15 days, the growth tendency of cray is grasped in time, when cray weight
It is caught in due course when up to 50g or more, vying each other between reduction leads to death.
A kind of aquaculture method of cray, the cultivated area of water plant described in step (1) are to account for pond area
30%.
A kind of aquaculture method of cray, pond water quality pH value described in step (2) are 7.
A kind of aquaculture method of cray, shrimp seedling described in step (4) launch in when putting shrimp species in a suitable place to breed with 3% food
Salt water washing bath 6min disinfection.
A kind of aquaculture method of cray, bait described in step (5) be after spiral shell or freshwater mussel are crushed and
Dregs of beans class, mixing dish leaf class, wheat, wheat bran are stirred, the shrimp seedling phase based on vegetal bait, according to 15% throwing of weight
The amount of feeding is fed, and at shrimp based on animal bait, is fed at shrimp according to the feeding volume of weight 5%.
A kind of aquaculture method of cray, water inlet the screen to filtrate, prevents in water quality management described in step (6)
Harmful organisms enter, and water temperature control is at 20 DEG C ± 2 DEG C.
A kind of aquaculture method of cray, described in step (6) shelling period management in calcium dihydrogen phosphate use
Frequency be monthly, it is 2kg/ mus each.
A kind of aquaculture method of cray, catching method described in step (7) are with lobster basket, cage, purse seine
Catching method, catch stay greatly it is small.
The number that feeds of a kind of feeding and management method of grass carp, pharmaceutical chemistry described in step (10) is that bait feeding can per half a month
1 time, every time 3 days.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of aquaculture method of cray, which comprises the following steps:
(1) pond condition: selection is had abundant water resources, irrigation and drainage are convenient, water holding capacity is strong, water quality is good, fertile soil, 3-5 mus of area
Pond, depth of water 1m or so digs for the place inhabited that burrows on the inside of the ridge of pond, and the outer ridge around pond will have 1: 2.5 slope
Degree, the outer high 2m or more in the ridge, 0.5m high is arranged in 1.5m or more, and in surrounding in pond stalk width, and one layer is done on the inner wall around pond
Oxygenation measure is arranged in smooth anti-escape measure, and eel grass, hydrilla verticillata, Eichhornia crassipes, water lettuce, spray are in addition planted in pond
The plants such as raw；
(2) water quality adjustment: putting preceding strict sterilization in a suitable place to breed, controls water quality pH, improves water body pH value using quick lime, water temperature control exists
20 DEG C, dissolved oxygen should be in 20cm or so in 3-5mg/L, transparency；
(3) selection of shrimp seedling: when launching shrimp seedling, same pond selects the consistent seed of size specification, disposably to put foot, selects
Select that physical strong, appendage is complete, disease-free shrimp seedling carefree, vitality is indomitable；
(4) shrimp seedling is launched:
A, summer puts in a suitable place to breed to put based on first young shrimp of current year hatching, puts the time in a suitable place to breed in mid or late July, stocking size is per acre
Young ten thousand tail of shrimp 3-4 of 0.8cm or more；
B, autumn put in a suitable place to breed with put current year cultivate big specification shrimp seedling or shrimp species based on, put the time in a suitable place to breed in mid-August to September, shrimp seedling
Specification is 1.2cm or so, puts ten thousand tail of 2.5-3 in a suitable place to breed per acre, and shrimp species specification is 2.5-3 centimetres, puts ten thousand tail of 1.5-2 in a suitable place to breed per acre；
C, Winter-Spring was put in a suitable place to breed generally in December or March in next year-April, was not met based on the shrimp of current year listing specification with putting in a suitable place to breed, per acre
It puts -2 ten thousand tail of 1.5 ten thousand tail in a suitable place to breed, is cultivated by winter and spring, listed to harvesting in July in June -；The saline solution of 3-5% is used before putting in a suitable place to breed
Dipping 10min carries out disinfection to pond with quick lime before putting in a suitable place to breed；
(5) bait feeding: daily daily ration, feeding quantity, which is subject to, has enough, eats up, not staying residual bait, feeds daily 2 times, and each 1 time sooner or later, because
Cray mainly feeds at night, and evening feeding volume accounts for the 70%-80% of full-time bait, and bait will be thrown in pool side shallow water, greatly
It is thrown less when criticizing shrimp shell, it is after shell to throw more；
(6) daily management: a, Water-quality control: being used alternatingly photosynthetic bacteria and quick lime carries out full pool spilling head to improve water quality, adjust
Water pH value is saved, ammonia-nitrogen content in pond is reduced, changes 1 new water, each quantity of exchanged water every 10-15 days notes when there is allogenic water note to change
Be the 1/3 of former pond water, when bad weather, to reduce daily ration, feeding quantity or stop bait throwing in, skim in pond in time residual bait and
Sundries keeps pond cleaning, if discovery lobster is slow in reacting, when trip collection swashes to bank, then illustrates anoxic, to open oxygenation in time
Machine oxygenation or the new water of filling, water transparence control will deepen water, suitably when weather overheat in 35cm or more with stabilization
Water water temperature；
B, while periodically carrying out disinfection to water body, multiannensional-sine, calcium tablet, lactic acid bacteria etc. disease control: are added in feed
It to enhance the immunity of cray, is monthly splashed with the full pool of 15-20g/m3 tea seed cake leachate, and monthly using primary fine worm
Only, while the generation for preventing disease using water quality improvement king etc. in one week is spaced；
C, shell period management: when the shelling of a large amount of crays, hypocalcia is in water body to meet the needs of cray hard shell, so wanting
It artificially replenishes the calcium, the shelling phase is taken orally using ionized calcium using 0.5% additive amount spice, or is directly splashed water using calcium dihydrogen phosphate
During which body keeps water body to stablize, is forbidden to use dripping of irritant drugs；
(7) timely fishing: fishing is adhered to patrolling the pool for first 15 days, the growth tendency of cray is grasped in time, when cray weight reaches 50g
It is caught in due course when above, vying each other between reduction leads to death.
2. a kind of aquaculture method of cray according to claim 1, which is characterized in that described in step (1)
The cultivated area of water plant is the 30-35% for accounting for pond area.
3. a kind of aquaculture method of cray according to claim 1, which is characterized in that described in step (2)
Pond water quality pH value is 7-8.
4. a kind of aquaculture method of cray according to claim 1, which is characterized in that described in step (4)
It is sterilized when putting shrimp species in shrimp seedling dispensing in a suitable place to breed with the salt water washing bath 6-10min of 3-4%.
5. a kind of aquaculture method of cray according to claim 1, which is characterized in that described in step (5)
Bait is to be stirred after crushing spiral shell or freshwater mussel with dregs of beans class, mixing dish leaf class, wheat, wheat bran, and the shrimp seedling phase is with plant
Based on property bait, fed according to the feeding volume of the 15-20% of weight, at shrimp based on animal bait, at shrimp according to weight 5-
10% feeding volume is fed.
6. a kind of aquaculture method of cray according to claim 1, which is characterized in that described in step (6)
Water inlet the screen to filtrate in water quality management, prevents that harmful organisms enter, and water temperature control is at 20 DEG C ± 2 DEG C.
7. a kind of aquaculture method of cray according to claim 1, which is characterized in that described in step (6)
Shell period management in calcium dihydrogen phosphate frequency of use be monthly, it is 2-4kg/ mus each.
8. a kind of aquaculture method of cray according to claim 1, which is characterized in that described in step (7)
Catching method be with lobster basket, cage, purse seine catching method, catch stay greatly it is small.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110731285A (en) * | 2019-11-05 | 2020-01-31 | 和县明信水产养殖专业合作社 | breeding method capable of improving crayfish yield |
| CN111513008A (en) * | 2020-06-10 | 2020-08-11 | 扬州大学 | Method for breeding procambarus clarkii in laboratory |
| CN111758629A (en) * | 2020-07-13 | 2020-10-13 | 和县明信水产养殖专业合作社 | Method for quickly breeding procambarus clarkii in rice field by controlling water level and water temperature |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110731285A (en) * | 2019-11-05 | 2020-01-31 | 和县明信水产养殖专业合作社 | breeding method capable of improving crayfish yield |
| CN111513008A (en) * | 2020-06-10 | 2020-08-11 | 扬州大学 | Method for breeding procambarus clarkii in laboratory |
| CN111758629A (en) * | 2020-07-13 | 2020-10-13 | 和县明信水产养殖专业合作社 | Method for quickly breeding procambarus clarkii in rice field by controlling water level and water temperature |
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