CN106954571A - Cray, the double stubble alternate culture sets in river crab pond support Micropterus salmonoides cultural method - Google Patents
Cray, the double stubble alternate culture sets in river crab pond support Micropterus salmonoides cultural method Download PDFInfo
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- 241001125875 Micropterus Species 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 28
- 241000251468 Actinopterygii Species 0.000 claims abstract description 44
- 241000238565 lobster Species 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 27
- 241001125889 Micropterus salmoides Species 0.000 claims abstract description 9
- 230000000366 juvenile effect Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000009395 breeding Methods 0.000 claims description 30
- 230000001488 breeding effect Effects 0.000 claims description 30
- 230000035611 feeding Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 8
- 241000269799 Perca fluviatilis Species 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 6
- 241000894007 species Species 0.000 claims description 6
- 244000025254 Cannabis sativa Species 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 5
- 235000021401 pellet diet Nutrition 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000009360 aquaculture Methods 0.000 abstract description 4
- 244000144974 aquaculture Species 0.000 abstract description 4
- 241000371997 Eriocheir sinensis Species 0.000 description 9
- 241000238557 Decapoda Species 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 230000026109 gonad development Effects 0.000 description 3
- 238000006213 oxygenation reaction Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 241001113556 Elodea Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000009344 polyculture Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000404975 Synchiropus splendidus Species 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012364 cultivation method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
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- 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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- Farming Of Fish And Shellfish (AREA)
Abstract
The invention belongs to technical field of aquaculture, disclose a kind of cray, the double stubble alternate cultures sets in river crab pond and support Micropterus salmonoides cultural methods, including pond prepares, the special pond of button juvenile crab kind is temporarily supported, lobster seed is put in a suitable place to breed and cultivated, largemouth bass fry is put in a suitable place to breed, lobster fishes for listing, temporarily support after seedlings of milieu crab is put in a suitable place to breed and cultivated, the utilization of the storage pond, holding pond pool, daily management, river crab and Micropterus salmonoides are fished for and the step such as list.The present invention considers the growth characteristics and life habit of river crab, cray and Micropterus salmonoides three, early stage, which is grown, in river crab first cultivates cray using pond space, main foster river crab after cray has before been caught by the end of July, and the small fish supported in Micropterus salmonoides control pond is covered in cultivating pool, be conducive to improving the utilization rate and economic benefit on the crab pool.
Description
Technical field
The invention belongs to technical field of aquaculture, and in particular to a kind of cray, the double stubble alternate culture sets in river crab pond are supported and added
State perch cultural method.
Background technology
River crab, scientific name Eriocheir sinensis, cray, scientific name Procambius clarkii, the two is all the very important special type of China
There is cultivation in aquaculture kind, many provinces such as Jiangsu, Hubei, Anhui.Dwelt the first of life because river crab and cray are bottom
Shell animal, so the activity of cray is unfavorable for river crab growth when the two is living together, and can reduce the shell of river crab and survive
Rate.So in cultivation practice, before many cultivation put crab species in a suitable place to breed in beginning of the year river crab pond per family, with medicines such as quick lime, bleaching powder
Cleaned up the pond, to kill the biologies such as cray.But into crab cultivation early stage (before by the end of July), crab individual is still small, deposits pool amount less,
Required breeding spaces are also smaller, so this stage river crab cultivation pond fails to make full use of, reduce cultivation income.In addition,
During culture of Chinese mitten crab, due to change hatch fish roe that water brings into and change water bring into the reasons such as fry, pond can exist it is many small
On the one hand trash fish, these small fish rob food river crab bait, water oxygen are on the other hand also consumed by, so as to influence cray and river crab
Growth.And Micropterus salmonoides are a kind of predacious fishes, the small individual aquatic animal such as small fish in eating water does not rob food river crab and raised
Material, and is received by the market very much at present, and market price is up to more than 12 yuan/jin.
Chinese patent 201210194737.2 discloses a kind of river crab, cray, mandarin fish polyculture method, including following step
Suddenly：Pond construction, sterilization of cleaning up the pond, plantation pasture and water, deliver spiral shell, seed sterilization, seed put in a suitable place to breed, feedstuff feeding, regulating and controlling water quality, production
Product are fished for.But river crab, cray start the time raised together with very early, the two is all zoobenthos, and cray influences river when raising together with
Crab survives and shell, so as to influence river crab specification and yield.
The content of the invention
It is an object of the invention to provide a kind of cray, the double stubble alternate cultures in river crab pond and the cultivation side for covering foster Micropterus salmonoides
Method, on the premise of crab cultured output and quality is not influenceed into, one batch of cray is cultivated by early stage, is covered and is supported in cultivating pool
Micropterus salmonoides, can make every mu to increase by 3300 yuan or so of income into crab cultivating pool, significantly improve the utilization rate and warp on the crab pool
Ji benefit.
To reach above-mentioned purpose, the present invention uses following technical scheme：
Cray, the double stubble alternate culture sets in river crab pond support Micropterus salmonoides cultural method, comprise the following steps：
S1, pond prepare：Prepare small one and large one two mouthfuls of ponds, pond is supported based on big pond, little pond is button crab storage pond, holding pond
The pool, and plant before mid-February pasture and water；
S2, the special pond of button juvenile crab kind are temporarily supported：The Ching Ming Festival before put in a suitable place to breed on the storage pond, holding pond pool button crab；
S3, lobster seed are put in a suitable place to breed and cultivated：April puts cray seedling in a suitable place to breed in main foster pond, and breeding cycle is 2~3 months；
S4, largemouth bass fry are put in a suitable place to breed：By the end of May to Micropterus salmonoides are put in a suitable place to breed in main foster pond at the beginning of 6 months, the time of putting in a suitable place to breed puts in button crab
Support more than the last week time；
S5, lobster fish for listing：Lobster starts to fish for from mid-May, catches and stay greatly small；Start mid-June largely to fish for, no
Pipe size all fishes for sale；Fished at the beginning of 7 months with the cage for specially fishing for cray；Because pond has a small amount of lobster in itself,
So while the lobster delivered will be raised 2~3 months, but it actually can just start mid-May to fish for；
S6, temporarily foster rear seedlings of milieu crab are put in a suitable place to breed and cultivated：After the completion of button second of shell of crab or third time shell, from 6
The beginning of the month starts the button crab on the storage pond, holding pond pool being transferred to main foster pond；
S7, the storage pond, holding pond pool are utilized：Button crab cleans up the pond after having caught, plants grass, is put in a suitable place to breed from main foster pond recapture part button crab；
S8, daily management：Pasture and water maintenance, regulating and controlling water quality, bait feeding and anti-escape antitheft；
S9, river crab and Micropterus salmonoides fish for listing.
Further, it is 6~8 that the master, which supports pond and the area ratio on the storage pond, holding pond pool,：1.
Further, the step S2 ,/mu of button crab breeding density 8000~12000, stocking size 5g or so/only.
Further, the step S3 ,/mu of cray seedling breeding density 5000~8000, stocking size 200~400
Only/kg.
Further, the step S3, feeds in the artifical compound feed of protein content 32%, breeding process and has regulated and controled bottom
Matter, water quality.
Further, the step S4,30~40 tails of largemouth bass fry breeding density/mu, whole breeding process is not fed
Perch mixed feed, allows it to prey on small fish in pond.
Further, the special cage for fishing for cray includes tubular mesh bag, keel, and keel are equally spacedly fixed on
On tubular mesh bag, plastic sheet is housed cage is intraoral, the width of plastic sheet is about 3/5 cage mouthful girth, and plastic sheet is not less than 25cm,
Cage mouthful is tied up in fix bar with static line.
Further, the step S6, breeding density of the button crab in main foster pond is 700/mu or so.
Further, the step S8 bait feedings：After crab species are delivered, the river crab high temperature resistance for feeding 36% protein content sinks
Property expanded pellet diet；20 days before last time shell, the river crab for feeding 40% protein content strengthens crab feed；Last time shell is completed
The river crab fattening feed of 35% protein content is fed afterwards.
Further, free-hand or crab pot fishes for river crab, and Micropterus salmonoides are fished for net before the dry pool.
The invention has the advantages that：
1st, the present invention cultivates one batch of cray, set on the premise of crab cultured output and quality is not influenceed into by early stage
Support Micropterus salmonoides, every mu can be made to increase by 3300 yuan or so of income into crab cultivating pool, significantly improve the crab pool utilization rate and
Economic benefit.
2nd, the present invention is whole does not feed frost trash fish, reduces river crab risk and crab farming labor intensity, protects life
State environment.
3rd, the present invention is reduced cage mouth and rocks cray and escaped machine using the special cage for fishing for cray of improvement
Rate, the cray rate of recapture is high, and remaining individual is few, influences small to culture of Chinese mitten crab.
4th, button crab turns the pool after sloughing off shell twice on the storage pond, holding pond pool, has eliminated Low button crab, improves into crab cultivation and survives
Rate, reduces disease, improves culture benefit.
5th, just there are the sale of commodity cray, speed up capital turnover aquaculture model May of the present invention.
6th, the small fish in Micropterus salmonoides control pond is supported by set, reduces small fish and rob food river crab bait and consumption pond
Pool water body oxygen, is conducive to river crab to grow, and small fish is converted into high-value goods fish, adds culture benefit.
7th, the excessive risk brought of the river crab price fluctuation formed is reduced.
8th, pass through deliver and fishing time control, it is to avoid in Polyculture cray river crab is survived and shell shadow
Ring.
The present invention considers the growth characteristics and life habit of river crab, cray and Micropterus salmonoides three, in river crab life
Long early stage first cultivates cray using pond space, main foster river crab after cray has before been caught by the end of July, and cover foster in cultivating pool
Small fish in Micropterus salmonoides control pond, on the premise of crab cultured output and quality is not influenceed into, passes through early stage cultivation one
Stubble cray, set supports Micropterus salmonoides, improves the utilization rate and economic benefit on the crab pool；The key point of the present invention is the special pond of crab button seed
Temporarily support, largemouth bass fry put in a suitable place to breed, the selective fishing of cray, cultivation later stage cray control technology (cut off part pasture and water, in vain
It puts cage in Wu Caochu, fishes for cray) and big specification seedlings of milieu crab puts technology in a suitable place to breed and (puts time, specification and close in a suitable place to breed after temporarily supporting
Degree).Using the ecological cultivation method, generally start largely to sell big specification cray by the end of May, basic sell finishes at the beginning of 7 months, base
This does not influence the yield and specification of culture of Chinese mitten crab, per per mu yield commodity lobster 100kg or so, 40/kg of average size or so, into crab
Cultured output is 75~100kg, and female crab average weight is 130g or so, and male crab average weight is 180g or so, Micropterus salmonoides mu
Yield is 15kg or so, and every mu into 3300 yuan or so of crab cultivating pool additional income.
Brief description of the drawings
Fig. 1 is the special cage for fishing for cray of the invention.
Embodiment
With reference to specific embodiment, the present invention is described further.
Embodiment 1
Cray, the double stubble alternate culture sets in river crab pond, which are carried out, according to following steps supports Micropterus salmonoides cultivation：
1st, pond prepares：Prepare small one and large one two mouthfuls of ponds, pond is supported based on big 12 mu of pond, 2 mu of little pond is button crab
The storage pond, holding pond pool, the area ratio in main foster pond and the storage pond, holding pond pool is 6：1,2 month No. 10 whole pond plantation pasture and water (waterweed), pond
The pool is equipped with bottom micro-pore oxygenation system, it is ensured that cray not anoxic.
S2, the special pond of button juvenile crab kind are temporarily supported：March 5, after waiting pasture and water length well, put high-quality button crab in a suitable place to breed on the storage pond, holding pond pool, put in a suitable place to breed
/ mu of density 10000, stocking size 5g or so/only.
3rd, lobster seed is put in a suitable place to breed and cultivated：April 3, put cray seedling in a suitable place to breed in main foster pond ,/mu of breeding density 6000,
200/kg of stocking size, feeds in the high-quality artifical compound feed of protein content 32%, breeding process during cultivation
Substrate, water quality.
4th, largemouth bass fry is put in a suitable place to breed：May 26, Micropterus salmonoides, 30 tails of breeding density/mu, fry are put in a suitable place to breed in main foster pond
10cm or so, whole breeding process does not feed perch mixed feed, allows it to prey on small fish in pond.
5th, lobster fishes for listing：Lobster was fished for since May 12, catches and stay greatly small；June 12, beginning was largely fished for, this
When cut off pond circular groove pasture and water, daytime cage is placed in circular groove, no matter size all fishes for sale；Not influence the river crab later stage
Growth, was fished for July 2 with the cage for specially fishing for cray, is entered the river crab of cage and can be escaped from from cage mouthful, enters the small dragon of cage
Shrimp is stayed in cage, as shown in figure 1, the cage for specially fishing for cray includes tubular mesh bag 1, keel 6, keel 6 are equidistant
Ground is fixed on tubular mesh bag 1, and in cage mouthful 2 built with plastic sheet 3, the width of plastic sheet 3 is about 3/5 cage mouthful girth, plastics
Piece 3 is not less than 25cm, and cage mouthful 2 is tied up in fix bar 5 with static line 4；Cray is all fished for July 14 and finished, is received
36.7/the kg of cray average size obtained, per mu yield commodity lobster 98.1kg.
6th, seedlings of milieu crab is put in a suitable place to breed and cultivated after temporarily supporting：After button second of shell of crab is fully completed, since June 2
The button crab on the storage pond, holding pond pool is arrested with cage, main foster pond is transferred to, now river crab average weight is 28.9g, and breeding density is
750/mu, now lobster is relatively seldom in pond, and the shell interval of river crab the 4th time and the 5th time is longer, is now put into river
The a small amount of lobster remained in crab, pond is to river crab growth effect very little.
7th, the storage pond, holding pond pool is utilized：Button crab cleans up the pond after having caught, plants grass, is put in a suitable place to breed from main foster pond recapture part button crab, puts close in a suitable place to breed
Degree is with main foster pond, and Micropterus salmonoides are put in a suitable place to breed also with main foster pond.
8th, daily management：With routine cray, culture of Chinese mitten crab administrative skill, pasture and water maintenance, regulating and controlling water quality, bait throwing are carried out
Feed and anti-escape antitheft grade work；After crab species are delivered, the heavy property expanded pellet diet of river crab high temperature resistance of 36% protein content is fed, raising is exempted from
Epidemic disease power, rides out the megathermal period；20 days before last time shell, the river crab for feeding 40% protein content strengthens crab feed, lifts river
Crab is advised；The river crab fattening feed of 35% protein content is fed after the completion of last time shell, promotes gonad development, grossness is improved
Degree.
9th, river crab and Micropterus salmonoides fish for listing：After November, free-hand or crab pot fishes for river crab, is caught before the dry pool with net
Drag for Micropterus salmonoides.
Embodiment 2
Cray, the double stubble alternate culture sets in river crab pond, which are carried out, according to following steps supports Micropterus salmonoides cultivation：
1st, pond prepares：Prepare small one and large one two mouthfuls of ponds, pond is supported based on big 14 mu of pond, 2 mu of little pond is button crab
The storage pond, holding pond pool, the area ratio in main foster pond and the storage pond, holding pond pool is 7：1, in 2 months No. 5 whole pond plantation pasture and water (waterweed), pond
The pool requires to be equipped with bottom micro-pore oxygenation system, it is ensured that cray not anoxic.
S2, the special pond of button juvenile crab kind are temporarily supported：March 10, after waiting pasture and water length well, put high-quality button crab in a suitable place to breed on the storage pond, holding pond pool, put
Foster/mu of density 9000, stocking size 5g or so/only.
3rd, lobster seed is put in a suitable place to breed and cultivated：April 6, put cray seedling in a suitable place to breed in main foster pond ,/mu of breeding density 8000,
Put 300/kg of rule in a suitable place to breed, fed during cultivation in the high-quality artifical compound feed of protein content 32%, breeding process and regulated and controled bottom
Matter, water quality.
4th, largemouth bass fry is put in a suitable place to breed：June 3, Micropterus salmonoides, 35 tails of breeding density/mu, fry are put in a suitable place to breed in main foster pond
10cm or so, whole breeding process does not feed perch mixed feed, allows it to prey on small fish in pond.
5th, lobster fishes for listing：Lobster was fished for since May 15, catches and stay greatly small；June 16, beginning was largely fished for, this
When cut off pond circular groove pasture and water, daytime cage is placed in circular groove, no matter size all fishes for sale；Not influence the river crab later stage
Growth, was fished for July 4 with the cage for specially fishing for cray, is entered the river crab of cage and can be escaped from from cage mouthful, enters the small dragon of cage
Shrimp is stayed in cage.Cray is all fished for July 16 and finished, the 34.4/kg of cray average size of harvest, per mu yield
Commodity lobster 108.4kg.
6th, seedlings of milieu crab is put in a suitable place to breed and cultivated after temporarily supporting：After button second of shell of crab is fully completed, since June 10
The button crab on the storage pond, holding pond pool is arrested with cage, main foster pond is transferred to, now river crab average weight is 32.2g, and breeding density is
700/mu, now lobster is relatively seldom in pond, and the shell interval of river crab the 4th time and the 5th time is longer, is now put into river
The a small amount of lobster remained in crab, pond is to river crab growth effect very little.
7th, the storage pond, holding pond pool is utilized：Button crab cleans up the pond after having caught, plants grass, is put in a suitable place to breed from main foster pond recapture part button crab, puts close in a suitable place to breed
Degree is with main foster pond, and Micropterus salmonoides are put in a suitable place to breed also with main foster pond.
8th, daily management：With routine cray, culture of Chinese mitten crab administrative skill, pasture and water maintenance, regulating and controlling water quality, bait throwing are carried out
Feed and anti-escape antitheft grade work；After crab species are delivered, the heavy property expanded pellet diet of river crab high temperature resistance of 36% protein content is fed, raising is exempted from
Epidemic disease power, rides out the megathermal period；20 days before last time shell, the river crab for feeding 40% protein content strengthens crab feed, lifts river
Crab is advised；The river crab fattening feed of 35% protein content is fed after the completion of last time shell, promotes gonad development, grossness is improved
Degree.
9th, river crab and Micropterus salmonoides fish for listing：After November, free-hand or crab pot fishes for river crab, is caught before the dry pool with net
Drag for Micropterus salmonoides.
Embodiment 3
Cray, the double stubble alternate culture sets in river crab pond, which are carried out, according to following steps supports Micropterus salmonoides cultivation：
1st, pond prepares：Prepare small one and large one two mouthfuls of ponds, pond is supported based on big 20 mu of pond, 2.5 mu of little pond is button
The crab storage pond, holding pond pool, the area ratio in main foster pond and the storage pond, holding pond pool is 8：1, pasture and water (Yi Le is planted before 2 months No. 2 whole ponds
Algae), pond requires to be equipped with bottom micro-pore oxygenation system, it is ensured that cray not anoxic.
S2, the special pond of button juvenile crab kind are temporarily supported：March 20, after waiting pasture and water length well, put high-quality button crab in a suitable place to breed on the storage pond, holding pond pool, put
Foster/mu of density 12000, stocking size 5g or so/only.
3rd, lobster seed is put in a suitable place to breed and cultivated：April 8, put cray seedling in a suitable place to breed in main foster pond ,/mu of breeding density 5000,
400/kg of stocking size, feeds in the high-quality artifical compound feed of protein content 32%, breeding process during cultivation
Substrate, water quality.
4th, largemouth bass fry is put in a suitable place to breed：June 9, Micropterus salmonoides, 40 tails of breeding density/mu, fry are put in a suitable place to breed in main foster pond
10cm or so, whole breeding process does not feed perch mixed feed, allows it to prey on small fish in pond.
5th, lobster fishes for listing：Lobster was fished for since May 19, catches and stay greatly small；June 16, beginning was largely fished for, this
When cut off pond circular groove pasture and water, daytime cage is placed in circular groove, no matter size all fishes for sale；Not influence the river crab later stage
Growth, was fished for July 5 with the cage for specially fishing for cray, is entered the river crab of cage and can be escaped from from cage mouthful, enters the small dragon of cage
Shrimp is stayed in cage.Cray is all fished for July 20 and finished, the 32.4/kg of cray average size of harvest, per mu yield
Commodity lobster 124.9kg.
6th, seedlings of milieu crab is put in a suitable place to breed and cultivated after temporarily supporting：After button crab third time shell is fully completed, since June 20
The button crab on the storage pond, holding pond pool is arrested with cage, main foster pond is transferred to, now river crab average weight is 48.7g, and breeding density is
680/mu, now lobster is relatively seldom in pond, and the shell interval of river crab the 4th time and the 5th time is longer, is now put into river
The a small amount of lobster remained in crab, pond is to river crab growth effect very little.
7th, the storage pond, holding pond pool is utilized：Button crab cleans up the pond after having caught, plants grass, is put in a suitable place to breed from main foster pond recapture part button crab, puts close in a suitable place to breed
Degree is with main foster pond, and Micropterus salmonoides are put in a suitable place to breed also with main foster pond.
8th, daily management：With routine cray, culture of Chinese mitten crab administrative skill, pasture and water maintenance, regulating and controlling water quality, bait throwing are carried out
Feed and anti-escape antitheft grade work；After crab species are delivered, the heavy property expanded pellet diet of river crab high temperature resistance of 36% protein content is fed, raising is exempted from
Epidemic disease power, rides out the megathermal period；20 days before last time shell, the river crab for feeding 40% protein content strengthens crab feed, lifts river
Crab is advised；The river crab fattening feed of 35% protein content is fed after the completion of last time shell, promotes gonad development, grossness is improved
Degree.
9th, river crab and Micropterus salmonoides fish for listing：After November, free-hand or crab pot fishes for river crab, is caught before the dry pool with net
Drag for Micropterus salmonoides.
Embodiment 1~3, traditional culture of Chinese mitten crab culture benefit it is as shown in the table：
It is 75~100kg into crab cultured output using the cultural method of the present invention, female crab average weight is 130g or so,
Male crab average weight is 180g or so, close with conventional method for breeding river crab, illustrates that culture of Chinese mitten crab is unaffected, every mu of volume increase dragon
Shrimp 100kg or so, Micropterus salmonoides 15kg or so, every mu into 3300 yuan or so of crab cultivating pool additional income.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Belong to those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. cray, the double stubble alternate culture sets in river crab pond support Micropterus salmonoides cultural method, comprise the following steps：
S1, pond prepare：Prepare small one and large one two mouthfuls of ponds, pond is supported based on big pond, little pond is the button crab storage pond, holding pond pool, and
Pasture and water are planted before mid-February；
S2, the special pond of button juvenile crab kind are temporarily supported：The Ching Ming Festival before put in a suitable place to breed on the storage pond, holding pond pool button crab；
S3, lobster seed are put in a suitable place to breed and cultivated：April puts cray seedling in a suitable place to breed in main foster pond, and breeding cycle is 2 ~ 3 months；
S4, largemouth bass fry are put in a suitable place to breed：By the end of May to Micropterus salmonoides are put in a suitable place to breed in main foster pond at the beginning of 6 months, the time is put in a suitable place to breed when detaining crab and putting in a suitable place to breed
Between it is more than the last week；
S5, lobster fish for listing：Lobster starts to fish for from mid-May, catches and stay greatly small；Start mid-June largely to fish for, no matter it is big
Small whole fishes for sale；Fished at the beginning of 7 months with the cage for specially fishing for cray；
S6, temporarily foster rear seedlings of milieu crab are put in a suitable place to breed and cultivated：After the completion of button second of shell of crab or third time shell, from early June
Start the button crab on the storage pond, holding pond pool being transferred to main foster pond；
S7, the storage pond, holding pond pool are utilized：Button crab cleans up the pond after having caught, plants grass, is put in a suitable place to breed from main foster pond recapture part button crab；
S8, daily management：Pasture and water maintenance, regulating and controlling water quality, bait feeding and anti-escape antitheft；
S9, river crab and Micropterus salmonoides fish for listing.
2. cultural method according to claim 1, it is characterised in that the master supports pond and the area ratio on the storage pond, holding pond pool is
6~8：1.
3. cultural method according to claim 1, it is characterised in that the step S2, button crab breeding density 8000 ~
12000/mu, stocking size 5g or so/only.
4. cultural method according to claim 1, it is characterised in that the step S3, cray seedling breeding density 5000 ~
8000/mu, 200 ~ 400/kg of stocking size.
5. cultural method according to claim 1, it is characterised in that the step S3, feeds the artificial of protein content 32%
Substrate, water quality are regulated and controled in mixed feed, breeding process.
6. cultural method according to claim 1, it is characterised in that the step S4, largemouth bass fry breeding density 30 ~
40 tails/mu, whole breeding process does not feed perch mixed feed, allows it to prey on small fish in pond.
7. cultural method according to claim 1, it is characterised in that the special cage for fishing for cray includes tubular
Mesh bag, keel, keel are equally spacedly fixed on tubular mesh bag, and intraoral equipped with plastic sheet in cage, the width of plastic sheet is about
3/5 cage mouthful girth, plastic sheet is not less than 25cm, and cage mouthful is tied up in fix bar with static line.
8. cultural method according to claim 1, it is characterised in that the step S6, button crab is put in a suitable place to breed main foster pond
Density is 700/mu or so.
9. cultural method according to claim 1, it is characterised in that the step S8 bait feedings：After crab species are delivered, throw
Feed the heavy property expanded pellet diet of river crab high temperature resistance of 36% protein content；20 days before last time shell, the river of 40% protein content is fed
Crab strengthens crab feed；The river crab fattening feed of 35% protein content is fed after the completion of last time shell.
10. cultural method according to claim 1, it is characterised in that the step S9, free-hand or crab pot fishes for river
Before crab, the dry pool Micropterus salmonoides are fished for net.
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