CN102204517A - Method for breeding river crabs in suspended cages - Google Patents
Method for breeding river crabs in suspended cages Download PDFInfo
- Publication number
- CN102204517A CN102204517A CN2011101205096A CN201110120509A CN102204517A CN 102204517 A CN102204517 A CN 102204517A CN 2011101205096 A CN2011101205096 A CN 2011101205096A CN 201110120509 A CN201110120509 A CN 201110120509A CN 102204517 A CN102204517 A CN 102204517A
- Authority
- CN
- China
- Prior art keywords
- cage
- river crab
- river
- cages
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a method for breeding river crabs in suspended cages, which comprises the following steps: selecting water areas; setting suspended cages; selecting river crab larvae; putting the river crab larvae into suspended cages and breeding; feeding with bait; performing daily management; and lifting up cages and harvesting. In the invention, one crab is bred in one cage, so the crabs cannot kill each other; the formed individual small environment contributes to growth and improves the survival rate of river crabs; the suspended cages with six-ring structure occupy large water space and are firm and durable; big dead corners in the cages are avoided basically; the suspended cages are suspended in water without influencing the breeding yield of the water area; single-cage breeding ensures adequate bait for the rive crabs and can greatly improve the specifications and yield of the river crabs; and by increasing protein bait feed in the later period of breeding, the quality of commercial crabs can be improved.
Description
Technical field:
The present invention relates to technical field of aquaculture, be specifically related to a kind of method with the cage cultivating river crab.
Background technology:
Eriocheir sinensia is commonly called as river crab, is the distinctive famous-brand and high-quality aquatic products of China, mainly is distributed in China the Changjiang river, the Liaohe River, the Oujiang River, wherein so that the Changjiang river water system river crab growth is fast, specification is big, resistance against diseases is strong, delicious flavour and famous.
The Changjiang river water system Eriocheir sinensia is the important breed objects in area such as the middle and lower reach of Yangtze River, and it cultures historical existing two more than ten years.Through the development of more than two decades, the culture of Chinese mitten crab industry has now become the industry that China shows unique characteristics, and national culture of Chinese mitten crab output was above 350,000 tons in 2005.Particularly along with the structural readjustment of rural industry, large quantities of farmlands turn to cultivating river crab, we can say that culture of Chinese mitten crab had become the major industry of the current structural readjustment of rural industry, increasing peasant income already.
Along with the develop rapidly of culture of Chinese mitten crab industry, some problems anxious to be solved have also appearred, as germplasm mix, environmental deterioration, disease take place frequently.
Summary of the invention:
Technical problem to be solved by this invention is to provide the method for the high cage cultivating river crab of a kind of survival rate, and this method cultivating river crab can make full use of water space, improves specification, output and the quality of river crab.
Technical problem to be solved by this invention realizes by the following technical solutions,
A kind of method with the cage cultivating river crab is characterized in that may further comprise the steps:
1. selection waters selects that the waters is broad, the water flows gently, pollution-free, thing section waters on the sunny side that food organisms are abundant;
2. cage is set, selects bigger pond, river course or the lake of area that cage is set, the pond cage setting that area is bigger must not surpass 150/mu, and the river course, lake country cage setting must not be above 200/mu;
3. river crab selects seedling, selects 30～40/kilogram the big specification river crab of gynoecy seedling, neat specification, and limbs are complete, and it is anosis not have wound;
4. throw in and culture, select fine day the first tenday period of a month in three months, disposable input of a cage finishes;
5. bait throwing in is raised, and changes according to appetite, and the spiral shell of throwing something and feeding was as main bait in 3～5 days, and be equipped with small fish, shrimp etc. as auxiliary material, daily ration, feeding quantity is controlled in 5～15% scopes of river crab body weight, and the river crab growth later stage will add feeds the shelling element, is beneficial to later stage tachyauxesis, maturation;
6. the breakage of cage facility is made regular check in daily management, guarantees that the interior fresh and alive pasture and water of cage are an amount of, goes heavy the benefit newly, in time drags for the spiral shell ghost, according to temperature, the timely elevator cage of water-head, and the degree of depth of adjustment cage under the water surface;
7. put forward the cage results,, can carry the adult river crab of cage results to mid-October through the breed of about 7 months time.
Described cage is six special ring cages, the cage skeleton by six isodiametric annulus respectively as about, six faces in all around interconnect and surround, the annulus outside on all around, following five faces is enclosed with the net sheet, the net sheet is sewn on the annulus, top annulus is sewed up with the reducing net tube larger diameter end made from the net sheet and is connected, and the smaller diameter end of reducing net tube is provided with plastic cylinder.
Described cage is implanted into emergent aquactic plant or spray sward handle, and surfaces, and is convenient to not grind off when river crab climbs up and down the guiding principle hair, improves survival rate.
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, uses quicklime slurrying, splashes above cage in per 15～20 days, splashes in the morning 9～11 and is advisable.
The present invention is owing to be breed of a cage, reduced cutting one another's throat between the river crab, form self subenvironment, help growth, can improve the survival rate of river crab, it is big that the cage of six ring structures takies the water body space, sturdy and durable, substantially do not have big dead angle in the cage body, cage is hung in the water, does not influence the cultured output in original waters, singly raising in cages to grow has sufficient bait edible for river crab, can improve specification and the output of river crab, add the input of larger protein bait culturing the later stage, can improve the quality of commodity crab.
Description of drawings:
Fig. 1 is the structural representation of cage.
Embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with specific embodiment and diagram, further set forth the present invention.
A kind of method with the cage cultivating river crab, concrete steps are as follows:
1. selection waters selects that the waters is broad, the water flows gently, pollution-free, thing section waters on the sunny side that food organisms are abundant;
2. cage is set, selects bigger pond, river course or the lake of area that cage is set, the pond cage setting that area is bigger must not surpass 150/mu, and the river course, lake country cage setting must not be above 200/mu;
3. river crab selects seedling, selects 30～40/kilogram the big specification river crab of gynoecy seedling, neat specification, and limbs are complete, and it is anosis not have wound;
4. throw in and culture, select fine day the first tenday period of a month in three months, disposable input of a cage finishes;
5. bait throwing in is raised, and changes according to appetite, and the spiral shell of throwing something and feeding was as main bait in 3～5 days, and be equipped with small fish, shrimp etc. as auxiliary material, daily ration, feeding quantity is controlled in 5～15% scopes of river crab body weight, and the river crab growth later stage will add feeds the shelling element, is beneficial to later stage tachyauxesis, maturation;
6. the breakage of cage facility is made regular check in daily management, guarantees that the interior fresh and alive pasture and water of cage are an amount of, goes heavy the benefit newly, in time drags for the spiral shell ghost, according to temperature, the timely elevator cage of water-head, and the degree of depth of adjustment cage under the water surface;
7. put forward the cage results,, can carry the adult river crab of cage results to mid-October through the breed of about 7 months time.
Cage is implanted into emergent aquactic plant or spray sward handle, and surfaces, and is convenient to not grind off when river crab climbs up and down the guiding principle hair, improves survival rate.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, uses quicklime slurrying, splashes above cage in per 15～20 days, splashes in the morning 9～11 and is advisable.
As shown in Figure 1, the cage that the raising river crab is used is six ring cages, cage skeleton 3 by six isodiametric annulus respectively as about, six faces in all around interconnect and surround, the annulus outside on all around, following five faces is enclosed with the net sheet, the net sheet is sewn on the annulus, top annulus is sewed up with reducing net tube 2 larger diameter end made from the net sheet and is connected, and the smaller diameter end of reducing net tube 2 is provided with plastic cylinder 1.
Annulus adopts iron wire or steel wire to make, and the contact point between annulus joint and annulus and the annulus is pricked dead with thin wire or welded together.The net sheet adopts 22 order net sheets, and net sheet and annulus contact position are sewed up with 3 * 2 formal wires.
More than show and described basic 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; that describes in the foregoing description and the specification just illustrates 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 (4)
1. method with the cage cultivating river crab is characterized in that may further comprise the steps:
A. select the waters, select that the waters is broad, the water flows gently, pollution-free, East and West direction yang edema territory section that food organisms are abundant;
B., cage is set, selects bigger pond, river course or the lake of area that cage is set, the pond cage setting that area is bigger must not surpass 150/mu, and the river course, lake country cage setting must not be above 200/mu;
C. river crab selects seedling, selects 30～40/kilogram the big specification river crab of gynoecy seedling, neat specification, and limbs are complete, and it is anosis not have wound;
D. throw in and culture, select fine day the first tenday period of a month in three months, disposable input of a cage finishes;
E. bait throwing in is raised, and changes according to appetite, and 3～5 days spiral shells of throwing something and feeding are as main bait, and is equipped with small fish, shrimp etc. as auxiliary material, and daily ration, feeding quantity is controlled in 5～15% scopes of river crab body weight, will add that to feed shelling plain the river crab growth later stage;
F. the breakage of cage facility is made regular check in daily management, guarantees that the interior fresh and alive pasture and water of cage are an amount of, goes heavy the benefit newly, in time drags for the spiral shell ghost, according to temperature, the timely elevator cage of water-head, and the degree of depth of adjustment cage under the water surface;
G. put forward the cage results,, can carry the adult river crab of cage results to mid-October through the breed of about 7 months time.
2. a kind of method according to claim 1 with the cage cultivating river crab, it is characterized in that: described cage is six special ring cages, the cage skeleton by six isodiametric annulus respectively as about, six faces in all around interconnect and surround, the annulus outside on all around, following five faces is enclosed with the net sheet, the net sheet is sewn on the annulus, top annulus is sewed up with the reducing net tube larger diameter end made from the net sheet and is connected, and the smaller diameter end of reducing net tube is provided with plastic cylinder.
3. a kind of method with the cage cultivating river crab according to claim 1 and 2, it is characterized in that: described cage is implanted into emergent aquactic plant or spray sward handle, and surfaces.
4. a kind of method according to claim 1 and 2 with the cage cultivating river crab, 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, use quicklime slurrying, splashed above cage in per 15～20 days, and splashed in the morning 9～11 and be advisable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101205096A CN102204517A (en) | 2011-05-10 | 2011-05-10 | Method for breeding river crabs in suspended cages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101205096A CN102204517A (en) | 2011-05-10 | 2011-05-10 | Method for breeding river crabs in suspended cages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102204517A true CN102204517A (en) | 2011-10-05 |
Family
ID=44693794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101205096A Pending CN102204517A (en) | 2011-05-10 | 2011-05-10 | Method for breeding river crabs in suspended cages |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102204517A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893932A (en) * | 2012-09-14 | 2013-01-30 | 中国水产科学研究院东海水产研究所 | Method for juvenile crab transfer in crab cultivation process |
| CN103814836A (en) * | 2012-11-19 | 2014-05-28 | 朱光来 | Method for high-density river crab aquaculture with six-ring cages |
| CN105613374A (en) * | 2015-12-31 | 2016-06-01 | 淮阴师范学院 | Male and female river crab separated pond culture method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185423A (en) * | 2007-11-23 | 2008-05-28 | 厦门大学 | Blue crab net cage fat-breeding method |
| JP4861457B2 (en) * | 2009-07-17 | 2012-01-25 | 佐々木商工株式会社 | Shellfish |
-
2011
- 2011-05-10 CN CN2011101205096A patent/CN102204517A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101185423A (en) * | 2007-11-23 | 2008-05-28 | 厦门大学 | Blue crab net cage fat-breeding method |
| JP4861457B2 (en) * | 2009-07-17 | 2012-01-25 | 佐々木商工株式会社 | Shellfish |
Non-Patent Citations (2)
| Title |
|---|
| 沈文平等: "河蟹吊笼养殖一例", 《中国水产》, no. 10, 31 December 2005 (2005-12-31) * |
| 邵才国等: "梭子蟹吊笼养殖试验", 《苏盐科技》, no. 03, 30 September 2002 (2002-09-30) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893932A (en) * | 2012-09-14 | 2013-01-30 | 中国水产科学研究院东海水产研究所 | Method for juvenile crab transfer in crab cultivation process |
| CN103814836A (en) * | 2012-11-19 | 2014-05-28 | 朱光来 | Method for high-density river crab aquaculture with six-ring cages |
| CN105613374A (en) * | 2015-12-31 | 2016-06-01 | 淮阴师范学院 | Male and female river crab separated pond culture method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103875571B (en) | The method of cultivation of a kind of mandarin fish fingerling mass-producing | |
| CN103891659B (en) | Method for breeding Odontobutis obscura through fish-rice symbiosis in pool | |
| CN105706968A (en) | Ecological grass carp breeding method | |
| CN102792908B (en) | Net cage for dietary domestication of siniperca scherzeri as well as use method thereof | |
| CN103109769A (en) | Loach fish fry artificial propagation method | |
| CN103109767A (en) | Loach fish fry artificial cultivation method | |
| CN103766252A (en) | High-yield pollution-free breeding method of freshwater fish | |
| CN103609486B (en) | Symphsodon discus breeding and fish larvae culturing method | |
| CN106954571A (en) | Cray, the double stubble alternate culture sets in river crab pond support Micropterus salmonoides cultural method | |
| CN106386611A (en) | High-yield method for breeding freshwater shrimps in greenhouse in winter | |
| CN104255603A (en) | Breeding method of pelteobagrus fulvidraco 'All-Male No.1' summer fingerlings | |
| CN104247687A (en) | Large-scale adult fish farming method of 'All-male No. 1' type Pelteobagrus fulvidracos | |
| CN104604763A (en) | Method for culturing pseudobagrusfulvidraco in lobster culturing pond in mixed mode | |
| CN101675729A (en) | Method for cultivating and artificial breeding plateau saline-alkali water area northern pike | |
| CN104542398B (en) | Spring and autumn two-season propagation method for loaches | |
| CN109089799A (en) | A kind of cultural method that rice shrimp educates altogether | |
| CN104026070B (en) | A kind of Trionyx sinensis (Wiegmann) environmentally-friendly pond culture method | |
| CN104663542A (en) | High-yield nuiscanceless breeding method for fresh water fishes | |
| CN104106492A (en) | Cultivation method for cultivating Chinese softshell turtles and yellow-head catfish meats | |
| CN105325329A (en) | High-yield culture method for grass carp | |
| CN102283154A (en) | Method for organically and efficiently breeding Erythroculter ilishaeformis in hilly pond | |
| CN106035146A (en) | Pond polyculture technology for black carps and crucian carps | |
| CN102771430A (en) | Triploid crucian carp No.2 pond development method | |
| CN102204517A (en) | Method for breeding river crabs in suspended cages | |
| CN105360033A (en) | Ecologically efficient shrimp and crab mixed culture method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111005 |