CN103609489A - Method for snakehead cage culture - Google Patents
Method for snakehead cage culture Download PDFInfo
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- CN103609489A CN103609489A CN201310572469.8A CN201310572469A CN103609489A CN 103609489 A CN103609489 A CN 103609489A CN 201310572469 A CN201310572469 A CN 201310572469A CN 103609489 A CN103609489 A CN 103609489A
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- net cage
- cages
- water
- snakehead
- culturing
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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 discloses a method for snakehead cage culture and relates to the technical field of aquaculture. The method includes the steps of setting cages and specifically includes that the arraying direction of the cages is perpendicular to water flow, spacing between the cages is 1-2m, and when multiple rows are juxtaposed, row spacing is above 10m; the cages are fixed with upper covers hung over a water surface, the depth that the cages dip into water is above 1.5m while overwater height is above 0.5m, the cages do not contact with the water bottom and are fed into the water 10 days before fingerlings are bred outside the cages, two-square-metered water plants arranged in the cages are taken as hidden things, and an ecological environment is artificially created. The method has the advantages that eating pressure of the snakeheads in a natural environment can be reduced, growth speed of the snakeheads is high, management can be facilitated, convenience in food feeding can be achieved, utilization rate of the food is high, and yield of the snakehead cage culture can be increased.
Description
Technical field
The present invention relates to technical field of aquaculture, relate in particular to a kind of method of culturing snakehead in net cage.
Background technology
In prior art, the cultivation survival rate of snakeheaded fish is lower, and growth rate is comparatively slow, and aquaculture cost is high, and in pond, large area is concentrated cultivation, is easily subject to the competing food impact of other species, is not easy to management.
Summary of the invention
A kind of method that the object of this invention is to provide culturing snakehead in net cage, to solve the problems of the technologies described above.
Technical problem to be solved by this invention realizes by the following technical solutions.
A method for culturing snakehead in net cage, is characterized in that, comprises the step that net cage is set, and is specially: net cage orientation is vertical with current, and net cage spacing 1～2m arranges when arranged side by side more, and row's spacing is more than 10m; Net cage adopts fixed, and upper cover hangs the water surface, and more than net cage underwater penetration 1.5m, more than air draght 0.5m, net cage does not contact with the bottom, and net cage enters water for first 10 days at fingerling stocking, and in case, the pasture and water of layout 2 ㎡, as things concealed, are manually built ecotope.
Described net cage is driven piles with mao bamboon, and stake surrounding surrounds framework and fixes.
Described net cage is bilayer zone cap seal enclosed, is shaped as squarely, and net cage support is made with 4 suitable mao bamboons of thickness, and the outer mesh of net cage is greater than internal layer mesh.
Also be included in the step of building a circle or square food platform in net cage, it is 1 ㎡ that food table top amasss, 15cm place under food platform immersion water.
The invention has the beneficial effects as follows: the method for culturing snakehead in net cage can reduce the competing food pressure of snakeheaded fish in natural environment, fast growth, is convenient to management, and food is thrown something and fed conveniently, and availability is high, improves the output of snakeheaded fish cultivation.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment
The making of net cage, setting and installation:
Net cage generally adopts polyethylene tubercle net sheet to make and forms, and mesh size is determined according to putting seed size in a suitable place to breed, after putting in a suitable place to breed, can not escape to be advisable with seed, and cage size is bilayer zone cap seal enclosed.The long 5m of net cage, wide 4m, high 2m.Outer mesh is generally greater than internal layer mesh, net cage underwater penetration 1.5m, and air draght 0.5m, case lid hangs the water surface.Net cage is 15 world water before fingerling inlet, can effectively prevent the scratch of fish body after tank wall periphtic algae.Net cage support is made with 4 suitable mao bamboons of thickness.The arrangement of net cage is general vertical with current, arranges when arranged side by side more, and spacing should not be too near, is generally about 12m, and it is fixed that net cage should be.
Net cage set-up site: the layout of net cage in water will be conducive to bookkeeping, is conducive to the exchange of Dissolved Oxygen in Water and part bait, net cage spacing 1～2m, net cage meets the tendency from bridge, culvert, lock, the mouth of a river, and offshore keeps distance more than 10m.
Net cage installation method: net cage is made into square, and be double seal formula, outer mesh should be greater than internal layer mesh.Inner layer net object size is determined according to thrown in fingerling specification size.An active open that is about 50cm is opened respectively on both sides, a corner at net cage, facilitates daily management and fishes for operation.Net cage is arranged to fixed, and with mao bamboon piling, surrounding surrounds framework and fixes, and net cage and the bottom should maintain a certain distance, and net cage enters water for first 10 days at fingerling stocking, and in case, the pasture and water of layout 2 ㎡, as things concealed, are manually built ecotope.
Build food platform: every case planted agent builds a circle or square food platform, and area is 1 ㎡.15cm place under food platform immersion water along with body weight increases, can suitably sink later.
Tame and throw something and feed: selecting floatability special aquatic products pellet.While starting to tame, the natural baits such as red worm that collocation has been dried in proportion, can tame successfully after one week.
Fingerling stocking: select neat specification, anosis active without hindering, swimming, specification is at the large size fingerling of 18cm left and right.Density: 70 tails/square metre.
Feedstuff feeding: after putting Miao Yizhou, fingerling has adapted to net cage environment, during first cartonning, water temperature is 15 ℃ of left and right, and food ration is little, throw a small amount of pellet, when water temperature rises to 18 ℃, fingerling enters the Fast Growth stage, now ingests in a large number, should strengthen throwing something and feeding, according to the snakeheaded fish different growing stages intensity of feeding and growth rhythm, April, daily ration of feeding was 0.3～1%, and 5～June, daily ration of feeding was 1～2%, 7～August, daily ration of feeding was 2～3%, and 9～October, daily ration of feeding was 2～0.5%.The bait throwing in time is 10: 30～11: 00 morning, and be 4: 30～6: 00 afternoon.The feed coefficient of adult fish particle is generally 1.2.
Daily management: during cultivation, every 15～30 days cleaning net cages once, are mainly removed the sediments at the bottom of net cage surrounding attachment and case, to keep the water body exchange inside and outside casing.Note observing the active situation of fish every day, regularly net cage is carried out to safety inspection, find in time breakage, will reinforce and lifting flood season to net cage, prevents that flood from washing away net cage and foreign matter scratches casing, will carry out the cage culture record of production at ordinary times.
Output: generally, through the raising of about 200 days, the net cage of 20 ㎡ can be gathered in the crops snakeheaded fish adult fish 1200kg, average 60kg/ ㎡, survival rate is up to more than 98%, and average specification is at 0.8～1kg/ tail, and weightening finish multiple is 8.62.
More than show and described basic principle of the present invention, 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 in above-described embodiment and specification, describes 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. a method for culturing snakehead in net cage, is characterized in that, comprises the step that net cage is set, and is specially: net cage orientation is vertical with current, and net cage spacing 1～2m arranges when arranged side by side more, and row's spacing is more than 10m; Net cage adopts fixed, and upper cover hangs the water surface, and more than net cage underwater penetration 1.5m, more than air draght 0.5m, net cage does not contact with the bottom, and net cage enters water for first 10 days at fingerling stocking, and in case, the pasture and water of layout 2 ㎡, as things concealed, are manually built ecotope.
2. the method for a kind of culturing snakehead in net cage according to claim 1, is characterized in that: described net cage is driven piles with mao bamboon, and stake surrounding surrounds framework and fixes.
3. the method for a kind of culturing snakehead in net cage according to claim 1 and 2, is characterized in that: described net cage is bilayer zone cap seal enclosed, is shaped as squarely, and net cage support is made with 4 suitable mao bamboons of thickness, and the outer mesh of net cage is greater than internal layer mesh.
4. the method for a kind of culturing snakehead in net cage according to claim 1 and 2, is characterized in that: be also included in the step of building a circle or square food platform in net cage, it is 1 ㎡ that food table top amasss 15cm place under food platform immersion water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572469.8A CN103609489A (en) | 2013-11-13 | 2013-11-13 | Method for snakehead cage culture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572469.8A CN103609489A (en) | 2013-11-13 | 2013-11-13 | Method for snakehead cage culture |
Publications (1)
| Publication Number | Publication Date |
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| CN103609489A true CN103609489A (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310572469.8A Pending CN103609489A (en) | 2013-11-13 | 2013-11-13 | Method for snakehead cage culture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105379657A (en) * | 2015-11-27 | 2016-03-09 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | Snakehead farming method |
| CN105830963A (en) * | 2016-03-30 | 2016-08-10 | 苏州市相城区阳澄湖镇剑成水产生态养殖专业合作社 | High-yielding culture method for snake-headed fishes |
| CN108040926A (en) * | 2017-10-18 | 2018-05-18 | 赵林斌 | A kind of little pond rapidly and efficiently snakeheaded fish propagation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720687A (en) * | 2009-12-16 | 2010-06-09 | 赵林斌 | Method for culturing snakehead in net cage |
| CN101720688A (en) * | 2009-12-16 | 2010-06-09 | 赵林斌 | Snakehead breeding method |
-
2013
- 2013-11-13 CN CN201310572469.8A patent/CN103609489A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101720687A (en) * | 2009-12-16 | 2010-06-09 | 赵林斌 | Method for culturing snakehead in net cage |
| CN101720688A (en) * | 2009-12-16 | 2010-06-09 | 赵林斌 | Snakehead breeding method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105379657A (en) * | 2015-11-27 | 2016-03-09 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | Snakehead farming method |
| CN105830963A (en) * | 2016-03-30 | 2016-08-10 | 苏州市相城区阳澄湖镇剑成水产生态养殖专业合作社 | High-yielding culture method for snake-headed fishes |
| CN108040926A (en) * | 2017-10-18 | 2018-05-18 | 赵林斌 | A kind of little pond rapidly and efficiently snakeheaded fish propagation method |
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Application publication date: 20140305 |