CN103814836A - Method for high-density river crab aquaculture with six-ring cages - Google Patents

Method for high-density river crab aquaculture with six-ring cages Download PDF

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Publication number
CN103814836A
CN103814836A CN201210467213.6A CN201210467213A CN103814836A CN 103814836 A CN103814836 A CN 103814836A CN 201210467213 A CN201210467213 A CN 201210467213A CN 103814836 A CN103814836 A CN 103814836A
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Prior art keywords
cage
river crab
crab
river
water
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CN201210467213.6A
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Chinese (zh)
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朱光来
徐陵
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朱光来
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Priority to CN201210467213.6A priority Critical patent/CN103814836A/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

Abstract

A method for high-density river crab aquaculture with six-ring cages particularly includes the steps: pond modification; cage setting; aquatic plant planting; river crab seed selection; releasing for aquaculture; bait casting for feeding; daily management. A covert space is created for river crabs to molt, and molting of the river crabs is benefited. In addition, the river crabs can select different growing aqueous layers according to own body conditions, so that river crab aquaculture density is increased. The six-ring cages occupy large water spaces and provide different growing aqueous layers for the river crabs from top to bottom, aquaculture yield of an original water area is unaffected since the cages are suspended in water, and river crab aquaculture yield of a single pond can be increased. Quality of commercial crabs can be improved by properly increasing input of protein baits in the later aquaculture period.

Description

A kind of use six is encircled cage and carries out the method for river crab high-density breeding
Technical field
The present invention relates to technical field of aquaculture, relate in particular to a kind of use six and encircle the method that cage carries out river crab high-density breeding and fall.
Background technology
Since ancient times, river crab is exactly the traditional table delicacies delicacy in Chinese food, deeply welcomed by the people.
But current culture of Chinese mitten crab affects raiser to bring crab up as main theory, and cultivation river crab has out formed polarization in specification.Hardly realize, the large crab price of this injection on market allows common people hang back, and seriously hindered common people's desire to purchase, caused on the contrary the problem of common people " eating large crab difficulty ".
At present, culture of Chinese mitten crab is native pond substantially, and this type of pond is all that raiser oneself excavates, and the depth of water is many, and at 1.5-1.8m, its culture efficiency is not good, is mainly manifested in pond waters less, and the depth of water is inadequate, and seed negligible amounts very little, is thrown in crab island.In addition, river crab is all lives at the bottom of pond at ordinary times, make river crab that bacteriosis very easily occur, and cause the mortality of river crab, cause the underproduction, impact cultivation effect.
For most of raisers, during culture of Chinese mitten crab, keep the normal growth of pasture and water to have certain difficulty, while causing river crab shell, be difficult to find a hidden space, be subject to the interference of other aquaculture organisms, cause in shell failure or shell process dead.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of use six to encircle cage carries out the method for river crab high-density breeding, and the method cultivating river crab can make full use of water space, guarantees the shell survival rate of river crab, improves the output of river crab.
For the problem on technical solution, the technical solution used in the present invention is as follows.
1. a method of carrying out river crab high-density breeding with six ring cages, is characterized in that comprising following step:
A. pond transformation: pond is rectangle, and the depth of water, more than 3 meters, is dug out the circular groove around pond around pond is excavated with rectangular crab island and rectangular zanjon interval in the middle of pond, and zanjon and pond circular groove around at grade.
B., cage is set: cage is suspended in the circular groove between Xie Daoyuxie island, builds a framework with bamboo pole, hang one every 1.5 meters.
C. pasture and water plantation: the peripheral plantation of crab island and circular groove waterweed, in addition, top, each crab island is bundled into bundle with iron wire by water peanut, laterally hangs a bundle every 3 meters.
D. river crab selects seedling: select the local river crab seedling of cultivating of large specification of 30 ~ 40/kilogram, and neat specification, limbs are complete, anosis without wound.
E. throw in cultivation: in the first tenday period of a month in three months, select fine day, disposable juvenile crab input is finished, injected volume is at 3500-5000/mu.
F. bait throwing in is raised: change according to weather condition and appetite, with a small amount of many meal, every meal is eaten up and is advisable, and the river crab growth later stage will add feeds shelling element, is beneficial to later stage tachyauxesis, maturation.
G. daily management: make regular check on the sanitary condition of cage facility, guarantee cleaning in cage, remove in time crab shell and ight soil on cage, according to temperature, the timely elevator cage of water-head, adjust the degree of depth of cage under the water surface.
The volume ratio in described Xie Dao district and cage district is 1:1, and Xie Dao district is trapezoidal, below the gradient 40 degree.
Reef has been built at described cultivating pool edge, and the distance between reef and reef is 1-1.2m.
The structure of described reef: use the binder of polypropylene material to weave the long cylindrical, hollow cage of 0.5m forming, diameter is 0.15m, and ten is a bundle, makes a reef.
Described cage is six special ring cages, overall appearance is conical, cage skeleton has six anisodiametric annulus, from top to bottom arrange according to circle diameter order from small to large, each annulus anchor ring is equipped with net sheet, between annulus and annulus, be connected with network of triangle sheet, form cone shape overall structure.
Described net sheet material is polyethylene.
Above described each annulus that is covered with net sheet, be equipped with nylon braided bag.
Described daily management will be carried out the preventing and controlling of river crab disease, in the whole culture-cycle, pays close attention to change of water quality and river crab active situation, with quicklime slurrying, about every first quarter moon, splash above cage depending on water body pH situation, the morning 10 left and right splash and be advisable.
The present invention is that hidden space is created in the shell of river crab, be conducive to the shell of river crab, in addition, river crab also can be selected different growth water layers according to the body condition of oneself, improve the cultivation density of river crab, it is large that six ring cages take Water space, and from top to bottom, for river crab provides different growth water layers, cage is hung in water, do not affect the cultured output in original waters, can improve single pool culture of Chinese mitten crab output, add in right amount the input of larger protein bait in the cultivation later stage, can improve the quality of commodity crab.
Accompanying drawing explanation
Fig. 1 is six ring cage schematic diagrames.Fig. 2 is anchor ring 28 order net sheets.Fig. 3 is commercially available nylon braided bag.Fig. 4 is the perspective view of cultivating pool.Fig. 5 is reef schematic diagram.
Embodiment
Embodiment mono-, a kind of use six are encircled cage and carry out the method for river crab high-density breeding, it is characterized in that comprising following step:
A. pond transformation: pond is rectangle, the depth of water is more than 3 meters, around pond, dig out the circular groove around pond, in the middle of pond, excavate with rectangular crab island and rectangular zanjon interval, at grade, the perspective view of cultivating pool as shown in Figure 4 for zanjon and pond circular groove around.
B., cage is set: cage is suspended in the circular groove between Xie Daoyuxie island, builds a framework with bamboo pole, hang one every 1.5 meters, as shown in Figure 1.
C. pasture and water plantation: the peripheral plantation of crab island and circular groove waterweed, in addition, top, each crab island is bundled into bundle with iron wire by water peanut, laterally hangs a bundle every 3 meters.
D. river crab selects seedling: select the local river crab seedling of cultivating of large specification of 30 ~ 40/kilogram, and neat specification, limbs are complete, anosis without wound.
E. throw in cultivation: in the first tenday period of a month in three months, select fine day, disposable juvenile crab input is finished, injected volume is at 3500-5000/mu.
F. bait throwing in is raised: change according to weather condition and appetite, with a small amount of many meal, every meal is eaten up and is advisable, and the river crab growth later stage will add feeds shelling element, is beneficial to later stage tachyauxesis, maturation.
G. daily management: make regular check on the sanitary condition of cage facility, guarantee cleaning in cage, remove in time crab shell and ight soil on cage, according to temperature, the timely elevator cage of water-head, adjust the degree of depth of cage under the water surface.
Embodiment bis-, embodiment mono-is limited: the volume ratio in Xie Dao district and cage district is 1:1, and Xie Dao district is trapezoidal, below the gradient 40 degree.
Embodiment tri-, embodiment mono-or two is limited: reef has been built at cultivating pool edge, and the distance between reef and reef is 1-1.2m, and reef schematic diagram as shown in Figure 5.
Embodiment tetra-, embodiment tri-is limited: the structure of reef: the cylindrical, hollow cage that the 0.5m that uses the binder of polypropylene material weave to form grows, diameter is 0.15m, ten is a bundle, makes a reef.
Embodiment five, embodiment mono-or two is limited: cage is six special ring cages, overall appearance is conical, cage skeleton has six anisodiametric annulus, from top to bottom arrange according to circle diameter order from small to large, each annulus anchor ring is equipped with net sheet, between annulus and annulus, be connected with network of triangle sheet, form cone shape overall structure.
Embodiment six, embodiment five is limited: net sheet is 28 order net sheets, and material is polyethylene, and net chip architecture as shown in Figure 2.
Embodiment tri-, embodiment five is limited: above each annulus that is covered with net sheet, be equipped with nylon braided bag, nylon braided bag as shown in Figure 3.
Embodiment eight, embodiment mono-or two is limited: daily management will be carried out the preventing and controlling of river crab disease, in the whole culture-cycle, pay close attention to change of water quality and river crab active situation, with quicklime slurrying, splash above cage depending on water body pH situation in every first quarter moon left and right, the morning 10 left and right splash and be advisable.
What more than in demonstration and specification, describe is principle of the present invention and principal character and advantage of the present invention; the technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (8)

1. a method of carrying out river crab high-density breeding with six ring cages, is characterized in that comprising following step:
A. pond transformation: pond is rectangle, and the depth of water, more than 3 meters, is dug out the circular groove around pond around pond is excavated with rectangular crab island and rectangular zanjon interval in the middle of pond, and zanjon and pond circular groove around at grade;
B., cage is set: cage is suspended in the circular groove between Xie Daoyuxie island, builds a framework with bamboo pole, hang one every 1.5 meters;
C. pasture and water plantation: the peripheral plantation of crab island and circular groove waterweed, in addition, top, each crab island is bundled into bundle with iron wire by water peanut, laterally hangs a bundle every 3 meters;
D. river crab selects seedling: select the local river crab seedling of cultivating of large specification of 30 ~ 40/kilogram, and neat specification, limbs are complete, anosis without wound;
E. throw in cultivation: in the first tenday period of a month in three months, select fine day, disposable juvenile crab input is finished, injected volume is at 3500-5000/mu;
F. bait throwing in is raised: change according to weather condition and appetite, with a small amount of many meal, every meal is eaten up and is advisable, and the river crab growth later stage will add feeds shelling element;
G. daily management: make regular check on the sanitary condition of cage facility, guarantee cleaning in cage, remove in time crab shell and ight soil on cage, according to temperature, the timely elevator cage of water-head, adjust the degree of depth of cage under the water surface.
2. a kind of use six according to claim 1 is encircled cage and carries out the method for river crab high-density breeding, it is characterized in that: the volume ratio in described Xie Dao district and cage district is 1:1, and Xie Dao district is trapezoidal, below the gradient 40 degree.
3. a kind of use six according to claim 1 and 2 is encircled cage and carries out the method for river crab high-density breeding, it is characterized in that: reef has been built at described cultivating pool edge, and the distance between reef and reef is 1-1.2m.
4. a kind of use six according to claim 3 is encircled cage and carries out the method for river crab high-density breeding, it is characterized in that: the structure of described reef: use the binder of polypropylene material to weave the long cylindrical, hollow cage of 0.5m forming, diameter is 0.15m, and ten is a bundle, makes a reef.
5. a kind of use six according to claim 1 and 2 is encircled cage and carries out the method for river crab high-density breeding, it is characterized in that: described cage is six special ring cages, overall appearance is conical, cage skeleton has six anisodiametric annulus, from top to bottom arrange according to circle diameter order from small to large, each annulus anchor ring is equipped with net sheet, between annulus and annulus, is connected with network of triangle sheet, forms cone shape overall structure.
6. a kind of use six according to claim 5 is encircled cage and carries out the method for river crab high-density breeding, it is characterized in that: described net sheet material is polyethylene.
7. a kind of use six according to claim 5 is encircled cage and carries out the method for river crab high-density breeding, it is characterized in that: above described each annulus that is covered with net sheet, be equipped with nylon braided bag.
8. a kind of use six according to claim 1 and 2 is encircled cage and carries out the method for river crab high-density breeding, it is characterized in that: described daily management will be carried out the preventing and controlling of river crab disease, in the whole culture-cycle, pay close attention to change of water quality and river crab active situation, with quicklime slurrying, splash above cage depending on water body pH situation in every first quarter moon left and right, the morning 10 left and right splash and be advisable.
CN201210467213.6A 2012-11-19 2012-11-19 Method for high-density river crab aquaculture with six-ring cages Pending CN103814836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN103814836A true CN103814836A (en) 2014-05-28

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7000567B1 (en) * 2004-08-30 2006-02-21 Shyh-Min Tom Hsiao Method for guiding aquatic crustaceans by utilizing their biological tendency responding to bright and dark contrast
JP2006254880A (en) * 2005-03-15 2006-09-28 Masaaki Inoue Method for culturing crabs or the like in pond
CN101347106A (en) * 2008-08-26 2009-01-21 宁波市海洋与渔业研究院 Stereo fine cultivation technique of shrimp, crab and shellfish in sea water pond
CN102177868A (en) * 2011-04-14 2011-09-14 盘锦每日集团有限公司 Method for pond three-dimensional (3D) culture of Chinese prawns
CN102204517A (en) * 2011-05-10 2011-10-05 齐怀忠 Method for breeding river crabs in suspended cages
CN102257986A (en) * 2011-06-14 2011-11-30 上海海洋大学 Method for constructing cultivation sewage sequencing batch circular treatment and recycling system
CN102334456A (en) * 2011-05-05 2012-02-01 黄爱秀 Method for breeding river crab by using hanging basket in pond and crab breeding basket
CN102630626A (en) * 2011-12-16 2012-08-15 苏州市阳澄湖消泾虾蟹产销专业合作社 Distribution of environment-friendly aquaculture farm

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7000567B1 (en) * 2004-08-30 2006-02-21 Shyh-Min Tom Hsiao Method for guiding aquatic crustaceans by utilizing their biological tendency responding to bright and dark contrast
JP2006254880A (en) * 2005-03-15 2006-09-28 Masaaki Inoue Method for culturing crabs or the like in pond
CN101347106A (en) * 2008-08-26 2009-01-21 宁波市海洋与渔业研究院 Stereo fine cultivation technique of shrimp, crab and shellfish in sea water pond
CN102177868A (en) * 2011-04-14 2011-09-14 盘锦每日集团有限公司 Method for pond three-dimensional (3D) culture of Chinese prawns
CN102334456A (en) * 2011-05-05 2012-02-01 黄爱秀 Method for breeding river crab by using hanging basket in pond and crab breeding basket
CN102204517A (en) * 2011-05-10 2011-10-05 齐怀忠 Method for breeding river crabs in suspended cages
CN102257986A (en) * 2011-06-14 2011-11-30 上海海洋大学 Method for constructing cultivation sewage sequencing batch circular treatment and recycling system
CN102630626A (en) * 2011-12-16 2012-08-15 苏州市阳澄湖消泾虾蟹产销专业合作社 Distribution of environment-friendly aquaculture farm

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* Cited by examiner, † Cited by third party
Title
仇江宏: "河蟹池塘养殖技术", 《现代农业科技》 *

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