CN106942108A - A kind of polyculture method of river crab and cray - Google Patents

A kind of polyculture method of river crab and cray Download PDF

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Publication number
CN106942108A
CN106942108A CN201710141625.3A CN201710141625A CN106942108A CN 106942108 A CN106942108 A CN 106942108A CN 201710141625 A CN201710141625 A CN 201710141625A CN 106942108 A CN106942108 A CN 106942108A
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China
Prior art keywords
pond
cray
delivered
feed
breed
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CN201710141625.3A
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Inventor
王万明
冯碧凤
雷波
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Tongren Kasen Aquiculture Co Ltd
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Tongren Kasen Aquiculture Co Ltd
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Priority to CN201710141625.3A priority Critical patent/CN106942108A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish
    • Y02A40/818Alternative feeds for fish, e.g. in aquacultures

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  • Feed For Specific Animals (AREA)

Abstract

The invention discloses the polyculture method of a kind of river crab and cray, comprise the following steps:Pond is leveled, pasture and water plantation, delivers spiral shell, feed and final-period management are put and delivered to seedling in a suitable place to breed, and using scientific management, the reduction incidence of disease improves survival rate and yield, with good economic benefit.

Description

A kind of polyculture method of river crab and cray
Technical field
The invention belongs to fresh water aquaculture field, and in particular to a kind of polyculture method of river crab and cray.
Background technology
River crab is a kind of economic crab, also known as steamed crab, eriocheir sinensis, clear water crab or crab, is the cuisines that China has long enjoyed a good reputation. Therefore its foot of a chela is used to take food gains the name with against the enemy, the close raw fine hair of outer rim in metacarpus, Eriocheir.Steamed crab is U.S. that people like Food, not only tasty mouthfeel but also nutritive value is very high.
Cray is also referred to as Procambius clarkii, red crayfish and freshwater crayfish.Be similar to shrimp and crust is hard.Adult is about 5.6- 11.9 centimetres, kermesinus, the nearly black in crust part, belly back side has a wedge-shaped striped.Juvenile prawn body is uniform grey, is had sometimes Black ripple, chela is long and narrow, is not separated in the middle part of crust by areola, substantially has particle on crust.It is economic freshwater shrimps, because Meat flavour is delicious wide popular to people.
Food can be striven with lobster due to river crab, oxygen is striven, strive pasture and water, and both there is autotomy and mutually residual habit, tradition is supported Grow harmful organisms of the straight grip lobster as crab pond, it is believed that foster lobster is covered in crab pond certain risk, and lobster can kill and devour Just in the soft crab of shell.This year, the ground such as the south of the River starts to support in the set of river crab and lobster, achieves good effect, still Still there are problems that the cray quantity that survival rate is not high, set is foster is relatively fewer, yield is not high and manages not.
The content of the invention
The present invention is directed to problems of the prior art there is provided the polyculture method of a kind of river crab and cray, including with Lower condition and step:
(1) pond is leveled:Excessive mud is purged to pond, it is ensured that bottom of pond is flat, in pond dig have " well " font or " returning " font irrigation canals and ditches, and equipped with pond micro-pore oxygenation facility, pond surrounding has the anti-escape wall of laying;Finally entered again with lime water The full pond sterilization of row;
(2) pasture and water are planted:Pasture and water cultivated area is the 50-70% of pond area;
(3) spiral shell is delivered:Every mu is delivered 500-700 kilograms of spiral shell living;
(4) seedling is put in a suitable place to breed:Crab species are put in a suitable place to breed:The crab species for selecting oneself to cultivate ,/kilogram of specification 80~150, neat specification, Disease-free without incompleteness, body surface color and luster is normal, energetic, and every mu is put in a suitable place to breed 500-800 only;Cray kind is put in a suitable place to breed:Deliver specification be 20~ 50/kilogram seed shrimps, every mu 4-6 kilograms;
(5) feed and final-period management are delivered:Feed is delivered into culturing pool, is fed within 10-15g/ days by every, feed is divided to two The secondary morning and evening is averagely delivered, it is necessary to ensure that amount of oxygen is in 5.0-6.0mg/L in culturing pool twice, changes within 5-10 days fresh water once, 10- 15 days it is sterilized once, until capture.
Middle arrangement aerator and dissolved oxygen on-Line Monitor Device are leveled in step (1) pond.
Concealed body is disposed with the leveling of step (1) pond is perched for it live in caves, including thick bamboo tube, tile, mesh sheet, brick Block, stone, bamboo raft, plastic barrel, artificial cave.
In the plantation of step (2) pasture and water:Pasture and water are based on hydrilla verticillata, collocation eel grass and waterweed.
Spiral shell is delivered in step (3):Deliver in two times, deliver every mu of 200-300kg in the 4-5 months for the first time, exist for the second time The 6-8 months deliver every mu of 300-400kg.
In step (4), seedling is put in a suitable place to breed:3%-5% saline sook seedling is used before putting in a suitable place to breed 10-30 minutes.
Feed is that 20%-50% is plant source feed, and 50%-80% is animal sources feed.
Plant source feed:Pumpkin, soya bean, corn and potato, are granulated after crushing.
Animal material resource feed:Small fish, spiral shell or spiral shell freshwater mussel meat.
The beneficial effect that the present invention reaches compared with prior art:
(1) survival rate is high:The dissolved oxygen in water is monitored in real time using online dissolved oxygen monitor, and arranged There is micro-pore oxygenation facility, it is ensured that amount of oxygen has very big work in 5.0-6.0mg/L for the raising of survival rate in culturing pool With;Pasture and water cultivated area is the 50-70% and arrangement concealed body of pond area, can wherein be hidden oneself again for shrimp, crab, hides enemy Harmful and similar cannibalisation, favorably improves survival rate;Pasture and water are planted simultaneously and spiral shell living is delivered, and can be that shrimp and crab provide abundance of food, And feed is also delivered daily, the shrimp crab having enough reduces and cut one another's throat, and improves certain survival rate.
(2) yield is high:It is exactly to improve yield while raising survival rate, uses various ways to provide food for shrimp crab, Spiral shell is wherein delivered, is delivered in two times, is delivered for the first time in the 4-5 months, is delivered for the second time in the 6-8 months, blue or green, meat and vegetables in the middle of the essence of two The principle science bait throwing in of collocation so that shrimp crab gesture is good.
(3) scientific management, reduces the incidence of disease:Include the sterilization in full pond, 3%-5% saline sook kind is used before putting in a suitable place to breed Seedling, online dissolved oxygen monitor is monitored in real time to the dissolved oxygen in water, changes within 5-10 days fresh water once, is killed within 10-15 days Once, the management of these science provides good guarantee to bacterium for the growth of shrimp crab, effectively reduces the incidence of disease.
Embodiment
Limited with reference to specific embodiment technical scheme is further, but claimed Scope is not only limited to made description.
Embodiment one
(1) pond is leveled:The pool mouthful 1,100 mu of area, are to utilize the improved pond of low-lying land, and each pool is along surrounding Back-shaped ditch 8 meters wide is excavated, 0.8 meter of ditch depth, pond table top is deep 1.2 meters, substrate is loam, water source is mountain spring water, and water is sufficient, Water nonpollution, enters draining conveniently, and pond surrounding builds anti-escape wall using special anti-escape plastic sheeting, and film buries 20 centimetres, High 50 cm of wall, and equipped with pond micro-pore oxygenation facility and online dissolved oxygen monitor, winter starts whole to pond progress Shape is transformed, and removes excessive mud, it is ensured that bottom of pond is flat, 10 centimetres of mud, and using freezing and exposure method kill pool ins and outs bacterium, Virus, improves the physicochemical property of soil, in mid-February every mu of use 125 the full ponds of kilogram of raw calcification water sprinkle and pour sterilization, and in bottom of pond Arrange concealed body, including thick bamboo tube, tile, mesh sheet, fragment of brick, stone, bamboo raft, plastic barrel, artificial cave;
(2) pasture and water are planted
Pasture and water cultivated area is the 50% of pond area, based on hydrilla verticillata, collocation eel grass and waterweed, is opened by the end of February Begin to plant waterweed on the side of circular groove four, sow eel grass kind in beach face at the beginning of 4 months and wheel blade is black, every mu respectively with kind of 1.5 kilograms, Quan Chi Disseminate;
(3) spiral shell is delivered
Every mu of water surface delivers 500 kilograms of spiral shell living, delivers in two times.During at the beginning of first arrival in April 5 months, every mu is delivered spiral shell living 200 kilograms, 300 kilograms of spiral shell is delivered again to every mu at the beginning of August by the end of June, it is bred growth in pond, can both purify pond water Matter, provides agreeable to the taste active bait for river crab and lobster again;
(4) seedling is put in a suitable place to breed
Crab species are put in a suitable place to breed:The crab species for selecting oneself to cultivate ,/kilogram of specification 120~150, neat specification is disease-free without incompleteness, Body surface color and luster is normal, energetic, is put in a suitable place to breed at the beginning of 3 months, and every mu is put in a suitable place to breed 500;
Lobster kind is put in a suitable place to breed:It is 25~30/kilogram seed shrimps to deliver specification in late August last year, about 4 kilograms every mu, allows it Burrowed in pond survive the winter, natural propagation;
3%-5% saline sook seedling is used before putting in a suitable place to breed 10-30 minutes.
(5) feed and final-period management are delivered:Feed is delivered into culturing pool, is fed within 10-15g/ days by every, feed is divided to two The secondary morning and evening is averagely delivered, it is necessary to ensure that amount of oxygen is in 5.0-6.0mg/L in culturing pool twice, changes within 5-10 days fresh water once, 10- 15 days it is sterilized once, until capture.
Embodiment two
(1) pond is leveled:The pool mouthful 1,100 mu of area, are to utilize the improved pond of low-lying land, and each pool is along surrounding Back-shaped ditch 8 meters wide is excavated, 0.8 meter of ditch depth, pond table top is deep 1.2 meters, substrate is loam, water source is mountain spring water, and water is sufficient, Water nonpollution, enters draining conveniently, and pond surrounding builds anti-escape wall using special anti-escape plastic sheeting, and film buries 20 centimetres, High 50 cm of wall, and equipped with pond micro-pore oxygenation facility and online dissolved oxygen monitor, winter starts whole to pond progress Shape is transformed, and removes excessive mud, it is ensured that bottom of pond is flat, 10 centimetres of mud, and using freezing and exposure method kill pool ins and outs bacterium, Virus, improves the physicochemical property of soil, in mid-February every mu of use 125 the full ponds of kilogram of raw calcification water sprinkle and pour sterilization, and in bottom of pond Arrange concealed body, including thick bamboo tube, tile, mesh sheet, fragment of brick, stone, bamboo raft, plastic barrel, artificial cave;
(2) pasture and water are planted
Pasture and water cultivated area is the 60% of pond area, based on hydrilla verticillata, collocation eel grass and waterweed, is opened by the end of February Begin to plant waterweed on the side of circular groove four, sow eel grass kind in beach face at the beginning of 4 months and wheel blade is black, use respectively for every mu and plant 2 kilograms, full pond dissipates Broadcast;
(3) spiral shell is delivered
Every mu of water surface delivers 600 kilograms of spiral shell living, delivers in two times.During at the beginning of first arrival in April 5 months, every mu is delivered spiral shell living 300 kilograms, 300 kilograms of spiral shell is delivered again to every mu at the beginning of August by the end of June, it is bred growth in pond, can both purify pond water Matter, provides agreeable to the taste active bait for river crab and lobster again;
(4) seedling is put in a suitable place to breed
Crab species are put in a suitable place to breed:The crab species for selecting oneself to cultivate ,/kilogram of specification 120~150, neat specification is disease-free without incompleteness, Body surface color and luster is normal, energetic, is put in a suitable place to breed at the beginning of 3 months, and every mu is put in a suitable place to breed 700;
Lobster kind is put in a suitable place to breed:It is 25~30/kilogram seed shrimps to deliver specification in late August last year, about 5 kilograms every mu, allows it Burrowed in pond survive the winter, natural propagation;
3%-5% saline sook seedling is used before putting in a suitable place to breed 10-30 minutes.
(5) feed and final-period management are delivered:Feed is delivered into culturing pool, is fed within 10-15g/ days by every, feed is divided to two The secondary morning and evening is averagely delivered, it is necessary to ensure that amount of oxygen is in 5.0-6.0mg/L in culturing pool twice, changes within 5-10 days fresh water once, 10- 15 days it is sterilized once, until capture.
Embodiment three
(1) pond is leveled:The pool mouthful 1,100 mu of area, are to utilize the improved pond of low-lying land, and each pool is along surrounding Back-shaped ditch 8 meters wide is excavated, 0.8 meter of ditch depth, pond table top is deep 1.2 meters, substrate is loam, water source is mountain spring water, and water is sufficient, Water nonpollution, enters draining conveniently, and pond surrounding builds anti-escape wall using special anti-escape plastic sheeting, and film buries 20 centimetres, High 50 cm of wall, and equipped with pond micro-pore oxygenation facility and online dissolved oxygen monitor, winter starts whole to pond progress Shape is transformed, and removes excessive mud, it is ensured that bottom of pond is flat, 10 centimetres of mud, and using freezing and exposure method kill pool ins and outs bacterium, Virus, improves the physicochemical property of soil, in mid-February every mu of use 125 the full ponds of kilogram of raw calcification water sprinkle and pour sterilization, and in bottom of pond Arrange concealed body, including thick bamboo tube, tile, mesh sheet, fragment of brick, stone, bamboo raft, plastic barrel, artificial cave;
(2) pasture and water are planted
Pasture and water cultivated area is the 70% of pond area, based on hydrilla verticillata, collocation eel grass and waterweed, is opened by the end of February Begin to plant waterweed on the side of circular groove four, sow eel grass kind in beach face at the beginning of 4 months and wheel blade is black, every mu respectively with kind of 2.5 kilograms, Quan Chi Disseminate;
(3) spiral shell is delivered
Every mu of water surface delivers 700 kilograms of spiral shell living, delivers in two times.During at the beginning of first arrival in April 5 months, every mu is delivered spiral shell living 300 kilograms, 400 kilograms of spiral shell is delivered again to every mu at the beginning of August by the end of June, it is bred growth in pond, can both purify pond water Matter, provides agreeable to the taste active bait for river crab and lobster again;
(4) seedling is put in a suitable place to breed
Crab species are put in a suitable place to breed:The crab species for selecting oneself to cultivate ,/kilogram of specification 120~150, neat specification is disease-free without incompleteness, Body surface color and luster is normal, energetic, is put in a suitable place to breed at the beginning of 3 months, and every mu is put in a suitable place to breed 800;
Lobster kind is put in a suitable place to breed:It is 25~30/kilogram seed shrimps to deliver specification in late August last year, about 6 kilograms every mu, allows it Burrowed in pond survive the winter, natural propagation;
3%-5% saline sook seedling is used before putting in a suitable place to breed 10-30 minutes.
(5) feed and final-period management are delivered:Feed is delivered into culturing pool, is fed within 10-15g/ days by every, feed is divided to two The secondary morning and evening is averagely delivered, it is necessary to ensure that amount of oxygen is in 5.0-6.0mg/L in culturing pool twice, changes within 5-10 days fresh water once, 10- 15 days it is sterilized once, until capture.

Claims (9)

1. a kind of river crab and the polyculture method of cray, it is characterised in that:Comprise the following steps:
(1) pond is leveled:Excessive mud is purged to pond, it is ensured that bottom of pond is flat, being dug in pond has " well " font or " returning " Font irrigation canals and ditches, and equipped with pond micro-pore oxygenation facility, pond surrounding has the anti-escape wall of laying;Finally carried out entirely with lime water again Pond is sterilized;
(2) pasture and water are planted:Pasture and water cultivated area is the 50%-70% of pond area;
(3) spiral shell is delivered:Every mu is delivered 500-700 kilograms of spiral shell living;
(4) seedling is put in a suitable place to breed:Crab species are put in a suitable place to breed:The crab species for selecting oneself to cultivate ,/kilogram of specification 80~150, neat specification is disease-free Without incompleteness, body surface color and luster is normal, energetic, and every mu is put in a suitable place to breed 500-800 only;Cray kind is put in a suitable place to breed:Deliver specification be 20~50/ Kilogram seed shrimp, every mu 4-6 kilograms;
(5) feed and final-period management are delivered:Feed is delivered into culturing pool, is fed within 10-15g/ days by every, feed is early in two times Evening is average twice to deliver, it is necessary to ensure that amount of oxygen is in 5.0-6.0mg/L in culturing pool, changes within 5-10 days fresh water once, 10-15 days It is sterilized once, until capture.
2. river crab as claimed in claim 1 and the polyculture method of cray, it is characterised in that:In leveling for step (1) pond Middle arrangement dissolved oxygen on-Line Monitor Device.
3. river crab as claimed in claim 1 and the polyculture method of cray, it is characterised in that:In leveling for step (1) pond In be disposed with concealed body and perched for it and live in caves, including thick bamboo tube, tile, mesh sheet, fragment of brick, stone, bamboo raft, plastic barrel, artificial hole Cave.
4. river crab as claimed in claim 1 and the polyculture method of cray, it is characterised in that:In the plantation of step (2) pasture and water:Water Grass is based on hydrilla verticillata, collocation eel grass and waterweed.
5. a kind of polyculture method of river crab and cray as claimed in claim 1, it is characterised in that:(3) spiral shell is delivered:It is divided to two It is secondary to deliver, every mu of 200-300kg is delivered in the 4-5 months for the first time, every mu of 300-400kg is delivered in the 6-8 months for the second time.
6. river crab as claimed in claim 1 and the polyculture method of cray, it is characterised in that:(4) seedling is put in a suitable place to breed:Before putting in a suitable place to breed With 3%-5% saline sook seedling 10-30 minutes.
7. river crab as claimed in claim 1 and the polyculture method of cray, it is characterised in that:Feed is that 20%-50% is plant Material resource feed, 50%-80% is animal sources feed.
8. river crab as claimed in claim 7 and the polyculture method of cray, it is characterised in that:Plant source feed:Pumpkin, Huang Beans, corn and potato, are granulated after crushing.
9. river crab as claimed in claim 7 and the polyculture method of cray, it is characterised in that:Animal material resource feed:Small fish, Spiral shell or spiral shell freshwater mussel meat.
CN201710141625.3A 2017-03-10 2017-03-10 A kind of polyculture method of river crab and cray Pending CN106942108A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107372247A (en) * 2017-07-24 2017-11-24 安徽华亿农牧科技发展有限公司 The ecological cultivation method of one seed shrimp crab mixing
CN107711643A (en) * 2017-11-10 2018-02-23 广西沙田仙人滩农业投资有限公司 A kind of crab pool multi items polyculture method
CN109874714A (en) * 2019-03-26 2019-06-14 江苏农牧科技职业学院 A kind of ecological cultivation method of Australia freshwater crayfish and Eriocheir sinensis intercropping
CN113455432A (en) * 2021-07-27 2021-10-01 江苏省淡水水产研究所 Method for culturing river crabs and crayfishes in same pond
CN114532266A (en) * 2022-02-22 2022-05-27 江苏虹州农业发展有限公司 Ecological breeding method for intercropping crayfishes in crab pool

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107372247A (en) * 2017-07-24 2017-11-24 安徽华亿农牧科技发展有限公司 The ecological cultivation method of one seed shrimp crab mixing
CN107711643A (en) * 2017-11-10 2018-02-23 广西沙田仙人滩农业投资有限公司 A kind of crab pool multi items polyculture method
CN109874714A (en) * 2019-03-26 2019-06-14 江苏农牧科技职业学院 A kind of ecological cultivation method of Australia freshwater crayfish and Eriocheir sinensis intercropping
CN113455432A (en) * 2021-07-27 2021-10-01 江苏省淡水水产研究所 Method for culturing river crabs and crayfishes in same pond
CN114532266A (en) * 2022-02-22 2022-05-27 江苏虹州农业发展有限公司 Ecological breeding method for intercropping crayfishes in crab pool

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