CN105475188A - Crab breeding method capable of increasing survival rate of crabs - Google Patents
Crab breeding method capable of increasing survival rate of crabs Download PDFInfo
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- CN105475188A CN105475188A CN201510860398.0A CN201510860398A CN105475188A CN 105475188 A CN105475188 A CN 105475188A CN 201510860398 A CN201510860398 A CN 201510860398A CN 105475188 A CN105475188 A CN 105475188A
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- culture pond
- crab
- water
- crabs
- survival rate
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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
Abstract
The invention discloses a crab breeding method capable of increasing the survival rate of crabs. The method includes the following steps that a, a breeding pond is established; b, the breeding pond is cleaned; c, fertilizer is applied to the breeding pond; d, aquatic plants are planted, wherein aquatic plants which crabs can eat are planted in the breeding pond from February to March, and the planting area of the aquatic plants accounts for 45-50% of the total area of water of the breeding pond; e, crab fry is selected; f, daily feeding is performed. In this way, an annular feeding trough is arranged at the edge of the breeding pond so that the eating condition of crabs can be conveniently observed, the next feed intake of the crabs is adjusted according to the previous feed intake of the crabs, and the crabs are made to eat a proper amount of feed; the depth of the annular feeding trough is large, food residues in the trough can be conveniently cleared away, it is prevented that food residues decay and go bad and water is polluted, and the survival rate of the crabs is increased; when food is not enough for the crabs, the crabs can eat the aquatic plants on their own, growth of the crabs is facilitated, and therefore the crab yield is increased.
Description
Technical field
The present invention relates to a kind of crab cultivation method improving crab survival rate.
Background technology
Crab is a kind of Species of Crustacea, its delicious flavour, and meat is fine and smooth, and protein content is high, and is rich in the various trace elements of needed by human body, is of high nutritive value, extensively likes by people, is one cuisines rare on dining table.But the requirement of crab to feeding environment is higher, relies on existing cultural method crab output lower, the demand in market can not be met, be therefore necessary to provide a kind of new cultural method to solve the problems referred to above.
Summary of the invention
The object of the present invention is to provide a kind of crab cultivation method that can improve the improved crab survival rate of crab output.
To achieve these goals, the technical solution adopted in the present invention is as follows:
Improve a crab cultivation method for crab survival rate, comprise the following steps:
A) culture pond is set up: build bottom culture pond sidewall and culture pond with cement, described culture pond sidewall is than 80-90cm high bottom described culture pond, edge bottom described culture pond is provided with annular and throws something and feeds groove, the large 3-5cm of the degree of depth at other position bottom culture pond described in the depth ratio of described groove of throwing something and feeding, described culture pond sidewall is provided with water inlet pipe, described trench bottom of throwing something and feeding is provided with discharge outlet, and the depth of water in described culture pond is 50-60cm, and described culture pond area is 4-5 mu;
B) culture pond cleaning and fertilising: rinsed well by whole culture pond giant, utilize water inlet pipe to enter clear water, make the depth of water in culture pond be 50-70cm, apply fertilizer weekly in culture pond, every mu applies 5 kilograms, calcium chloride, dibastic sodium phosphate 2.5 kilograms;
D) transplant pasture and water: the pasture and water planted crab 2-3 month can eat in described culture pond, pasture and water cultivated area accounts for the 45-50% of the culture pond water surface gross area;
E) select juvenile crab: select the juvenile crab that step is complete, physique is healthy and strong, it is active to creep, nothing wound is anosis, drop in culture pond in April, only throw in 1400-1600 for every mu;
F) dailyly to throw something and feed: every natural gift three timings are thrown something and fed bait, adjacent twice Feeding time is separated by 3-4 hour.
Preferably, step a) described in discharge outlet is provided with metal filter screen, described metal filtration is evenly distributed with some filtration through holes on the net, and the aperture of described filtration through hole is 1-2cm.
Preferably, step a) described in the height of water inlet pipe be greater than the water surface elevation of described culture pond.
Preferably, step a) described in be placed with some stones bottom culture pond, described stone offers some crabholes.
Preferably, steps d) described in pasture and water comprise in hydrilla verticillata, hornwort, weter hyacinth, water lettuce and water peanut one or more.
Preferably, step f) described in bait comprise the soybean after immersion, pumpkin, sweet potato, dish leaf, screw, freshwater mussel and fishes and shrimps.
Compared with prior art, the beneficial effect that the present invention can improve the crab cultivation method of crab survival rate is: culture pond edge of the present invention arranges annular and to throw something and feed groove, be convenient to the fed state observing crab, adjust next food-intake of pausing of crab according to the food-intake of upper one of crab, crab is taken food appropriate; The throw something and feed degree of depth of groove of described annular is large, is convenient to the swill cleared up wherein, prevents swill to rot polluted water, improves crab survival rate; Described crab, when inanition, can eat pasture and water voluntarily, is convenient to crab growth, thus improves crab output.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
Improve a crab cultivation method for crab survival rate, comprise the following steps:
A) culture pond is set up: build bottom culture pond sidewall and culture pond with cement, described culture pond sidewall is than 80-90cm high bottom described culture pond, edge bottom described culture pond is provided with annular and throws something and feeds groove, the large 3-5cm of the degree of depth at other position bottom culture pond described in the depth ratio of described groove of throwing something and feeding, described culture pond sidewall is provided with water inlet pipe, described trench bottom of throwing something and feeding is provided with discharge outlet, and the depth of water in described culture pond is 50-60cm, and described culture pond area is 4-5 mu;
B) culture pond cleaning and fertilising: rinsed well by whole culture pond giant, utilize water inlet pipe to enter clear water, make the depth of water in culture pond be 50-70cm, apply fertilizer weekly in culture pond, every mu applies 5 kilograms, calcium chloride, dibastic sodium phosphate 2.5 kilograms;
D) transplant pasture and water: the pasture and water planted crab 2-3 month can eat in described culture pond, pasture and water cultivated area accounts for the 45-50% of the culture pond water surface gross area;
E) select juvenile crab: select the juvenile crab that step is complete, physique is healthy and strong, it is active to creep, nothing wound is anosis, drop in culture pond in April, only throw in 1400-1600 for every mu;
F) dailyly to throw something and feed: every natural gift three timings are thrown something and fed bait, adjacent twice Feeding time is separated by 3-4 hour.
Step a) in, described discharge outlet is provided with metal filter screen, and described metal filtration is evenly distributed with some filtration through holes on the net, and the aperture of described filtration through hole is 1-2cm.The height of described water inlet pipe is greater than the water surface elevation of described culture pond.When needs change water or cleaning swill, water inlet pipe injects clean water, and open discharge outlet, waste water is discharged from discharge outlet simultaneously, and swill is accumulated on screen pack, is convenient to cleaning.In addition, bottom described culture pond, be placed with some stones, described stone offers some crabholes, the natural living environment of simulation crab, be convenient to crab and hide natural enemy and hide, increase the activity space of crab, be convenient to crab growth, improve the output of crab.
Step b) in the fertilizer that applies can provide enough nutrition for pasture and water, be convenient to pasture and water and be grown to crab and provide natural organic food, fertilizer also can provide enough calcium constituents and P elements for the growth of crab simultaneously.
Steps d) described in pasture and water comprise in hydrilla verticillata, hornwort, weter hyacinth, water lettuce and water peanut one or more, step f) described in bait comprise the soybean after immersion, pumpkin, sweet potato, dish leaf, screw, freshwater mussel and fishes and shrimps.Throw something and feed crab time meat and vegetables collocation, the ratio of general meat and vegetables is 3: 2, and feeding volume is according to the increase in direct ratio of the body weight of crab.
In sum, culture pond edge of the present invention arranges annular and to throw something and feed groove, is convenient to the fed state observing crab, adjusts next food-intake of crab, crab is taken food appropriate according to the food-intake of upper one of crab; The throw something and feed degree of depth of groove of described annular is large, is convenient to the swill cleared up wherein, prevents swill to rot polluted water, improves crab survival rate; Described crab, when inanition, can eat pasture and water voluntarily, is convenient to crab growth, thus improves crab output.
Schematically above be described the present invention and embodiment thereof, this description does not have restricted, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (6)
1. can improve a crab cultivation method for crab survival rate, it is characterized in that, comprise the following steps:
A) culture pond is set up: build bottom culture pond sidewall and culture pond with cement, described culture pond sidewall is than 80-90cm high bottom described culture pond, edge bottom described culture pond is provided with annular and throws something and feeds groove, the large 3-5cm of the degree of depth at other position bottom culture pond described in the depth ratio of described groove of throwing something and feeding, described culture pond sidewall is provided with water inlet pipe, described trench bottom of throwing something and feeding is provided with discharge outlet, and the depth of water in described culture pond is 50-60cm, and described culture pond area is 4-5 mu;
B) culture pond cleaning and fertilising: rinsed well by whole culture pond giant, utilize water inlet pipe to enter clear water, make the depth of water in culture pond be 50-70cm, apply fertilizer weekly in culture pond, every mu applies 5 kilograms, calcium chloride, dibastic sodium phosphate 2.5 kilograms;
D) transplant pasture and water: the pasture and water planted crab 2-3 month can eat in described culture pond, pasture and water cultivated area accounts for the 45-50% of the culture pond water surface gross area;
E) select juvenile crab: select the juvenile crab that step is complete, physique is healthy and strong, it is active to creep, nothing wound is anosis, drop in culture pond in April, only throw in 1400-1600 for every mu;
F) dailyly to throw something and feed: every natural gift three timings are thrown something and fed bait, adjacent twice Feeding time is separated by 3-4 hour.
2. can improve the crab cultivation method of crab survival rate as claimed in claim 1, it is characterized in that: step a) described in discharge outlet is provided with metal filter screen, described metal filtration is evenly distributed with some filtration through holes on the net, and the aperture of described filtration through hole is 1-2cm.
3. can improve the crab cultivation method of crab survival rate as claimed in claim 1, it is characterized in that: step a) described in the height of water inlet pipe be greater than the water surface elevation of described culture pond.
4. can improve the crab cultivation method of crab survival rate as claimed in claim 1, it is characterized in that: step a) described in be placed with some stones bottom culture pond, described stone offers some crabholes.
5. can improve the crab cultivation method of crab survival rate as claimed in claim 1, it is characterized in that: steps d) described in pasture and water comprise in hydrilla verticillata, hornwort, weter hyacinth, water lettuce and water peanut one or more.
6. can improve the crab cultivation method of crab survival rate as claimed in claim 1, it is characterized in that: step f) described in bait comprise the soybean after immersion, pumpkin, sweet potato, dish leaf, screw, freshwater mussel and fishes and shrimps.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510860398.0A CN105475188A (en) | 2015-11-30 | 2015-11-30 | Crab breeding method capable of increasing survival rate of crabs |
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| CN201510860398.0A CN105475188A (en) | 2015-11-30 | 2015-11-30 | Crab breeding method capable of increasing survival rate of crabs |
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| CN105475188A true CN105475188A (en) | 2016-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106259079A (en) * | 2016-08-08 | 2017-01-04 | 广西吉品环保科技有限公司 | A kind of ecological cultivation method of crab |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137065A1 (en) * | 2007-05-04 | 2008-11-13 | Marical, Inc. | Methods of raising crustaceans in low salinity water |
| CN103875575A (en) * | 2014-04-20 | 2014-06-25 | 常德家华水产科技有限公司 | Breeding method for South American white shrimps in freshwater lake |
| CN105010178A (en) * | 2015-05-29 | 2015-11-04 | 苏州莲花岛生态农业专业合作社 | Hairy crab culturing method |
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2015
- 2015-11-30 CN CN201510860398.0A patent/CN105475188A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137065A1 (en) * | 2007-05-04 | 2008-11-13 | Marical, Inc. | Methods of raising crustaceans in low salinity water |
| CN103875575A (en) * | 2014-04-20 | 2014-06-25 | 常德家华水产科技有限公司 | Breeding method for South American white shrimps in freshwater lake |
| CN105010178A (en) * | 2015-05-29 | 2015-11-04 | 苏州莲花岛生态农业专业合作社 | Hairy crab culturing method |
Non-Patent Citations (2)
| Title |
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| 杨成胜等: "优质河蟹生态养殖技术", 《科学种养》 * |
| 王志跃等: "《现代高效养殖业导读》", 30 June 2009 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106259079A (en) * | 2016-08-08 | 2017-01-04 | 广西吉品环保科技有限公司 | A kind of ecological cultivation method of crab |
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Application publication date: 20160413 |