CN203827866U - Chinese mitten crab shelling concealing device - Google Patents
Chinese mitten crab shelling concealing device Download PDFInfo
- Publication number
- CN203827866U CN203827866U CN201420067912.6U CN201420067912U CN203827866U CN 203827866 U CN203827866 U CN 203827866U CN 201420067912 U CN201420067912 U CN 201420067912U CN 203827866 U CN203827866 U CN 203827866U
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- CN
- China
- Prior art keywords
- shelling
- crab
- hidden unit
- concealing
- separation net
- 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.)
- Expired - Fee Related
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Classifications
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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 utility model discloses a Chinese mitten crab shelling concealing device which comprises a pair of fixed concealing units. A separation net is arranged between the concealing units, the length of meshes of the separation net is 0.3-2.4 cm, a plurality of holes are formed in each concealing unit, the width of the holes is 4-10 cm, the height of the holes is 3-6 cm, and the depth of the holes is 12-40 cm. The Chinese mitten crab shelling concealing device can be used for concealing a crab when shelling is conducted, and the attack of other crabs can be effectively avoided.
Description
Technical field
The utility model relates to a kind of crab cultivation servicing unit, is specifically related to a kind of for the crab hidden device that shells.
Background technology
It is generally acknowledged that Eriocheir sinensia (crab) cultivating pool must plant grass, the crab that is well grassed could be supported well.Find after deliberation, the function of pasture and water has following several respects: one is to provide sheltered situation, the probability of being massacreed by other crab while reducing crab shelling, thus improve survival rate; The 2nd, as bait, by river crab is eaten; The 3rd, photosynthesis, improves water body dissolved oxygen.For dissolved oxygen, if pasture and water grow the water surface, due to its sunshade effect and gear wind wave action, can make on the contrary dissolved oxygen reduce, especially night, because pasture and water biomass is very large, its respiration oxygen consumption is also a lot, often makes dissolved oxygen in water be down to below 2.5mg/L, therefore often brings adverse effect.Dissolved oxygen problem can solve by artificial oxygenation, and therefore this oxygen-supplying function of pasture and water not necessarily.As for the bait function of pasture and water, due to research and development and the successful Application of crab manufactured feed, also become inessential.Therefore, if the hidden problem while solving crab shelling, support crab and just can not rely on pasture and water, the adverse effect that just can avoid pasture and water to decay to water quality, occurring and improve crab body surface fineness thereby reduce disease, can be also that hydroplankton amount increases substantially, for crab provides enough carotenoid (comprising astaxanthin) and unsaturated fatty acids, thereby promote the healthy and ripe of crab, improve the body colour of crab.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of for the crab hidden device that shells, and can effectively prevent crab shelling time, is attacked cannibalisation by other crab.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of Eriocheir sinensia shelling concealed device, comprise a pair of fixing hidden unit, between described hidden unit, be provided with separation net, described separation net mesh size is 0.3~2.4cm, described each hidden unit is arranged with multiple holes, and described hole is wide is 4~10cm.Height is 3~6cm.The degree of depth is 12~40cm.
In technique scheme, described each hidden unit can be made up of the staggered stack of 4~20 layers of tile.
In technique scheme, described each hidden unit can be made up of at least 5 pvc pipe bindings.
Preferred technical scheme, described tile is 4~8 layers.
Preferred technical scheme, the described hole degree of depth is 20~25cm.
Concealed device of the present utility model is placed at random in pond, and placing height should be controlled at lowest water level underwater 20cm, places hidden hole count for every mu and is no more than 2000.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The utility model arranges hole on hidden unit, sheltered situation is provided while shelling for crab, effectively replace the pasture and water of a large amount of plantations in existing crab cultivation pond, thereby the adverse effect of avoiding pasture and water to decay to water quality, reduce disease and occur and improve crab body surface fineness, hydroplankton amount is increased substantially, for crab is improved enough carotenoid and unsaturated fatty acid, thereby promote the healthy and ripe of crab, improve the body colour of crab.
Brief description of the drawings
Fig. 1 is the utility model structural representation in embodiment mono-.
Fig. 2 is the lateral plan of Fig. 1.
Wherein: 1, hidden unit; 2, separation net; 3, hole.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment mono-: shown in Fig. 1 and 2, a kind of Eriocheir sinensia shelling concealed device, comprise a pair of fixing hidden unit 1, between described hidden unit, be provided with separation net 2, described separation net mesh size is 0.3~2.4cm, described each hidden unit is arranged with multiple holes 3, and described hole is wide is 4~10cm.Height is 3~6cm.The degree of depth is 12~40cm.
In the present embodiment, each hidden unit is made up of the staggered stack of 4~20 layers of tile.
Embodiment bis-: shown in Fig. 1 and 2, a kind of Eriocheir sinensia shelling concealed device, comprise a pair of fixing hidden unit 1, between described hidden unit, be provided with separation net 2, described separation net mesh size is 0.3~2.4cm, described each hidden unit is arranged with multiple holes 3, and described hole is wide is 4~10cm.Height is 3~6cm.The degree of depth is 12~40cm.
In the present embodiment, each hidden unit is made up of at least 5 pvc pipe bindings.
Claims (5)
1. an Eriocheir sinensia shelling concealed device, it is characterized in that: comprise a pair of fixing hidden unit, between described hidden unit, be provided with separation net, described separation net mesh size is 0.3~2.4cm, described each hidden unit is arranged with multiple holes, described hole is wide is 4~10cm, and height is 3~6cm, and the degree of depth is 12~40cm.
2. a kind of Eriocheir sinensia shelling concealed device according to claim 1, is characterized in that: described each hidden unit is made up of the staggered stack of 4~20 layers of tile.
3. a kind of Eriocheir sinensia shelling concealed device according to claim 1, is characterized in that: described each hidden unit is made up of at least 5 pvc pipe bindings.
4. a kind of Eriocheir sinensia shelling concealed device according to claim 2, is characterized in that: described tile is 4~8 layers.
5. a kind of Eriocheir sinensia shelling concealed device according to claim 1, is characterized in that: the described hole degree of depth is 20~25cm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420067912.6U CN203827866U (en) | 2014-02-17 | 2014-02-17 | Chinese mitten crab shelling concealing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420067912.6U CN203827866U (en) | 2014-02-17 | 2014-02-17 | Chinese mitten crab shelling concealing device |
Publications (1)
Publication Number | Publication Date |
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CN203827866U true CN203827866U (en) | 2014-09-17 |
Family
ID=51505771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201420067912.6U Expired - Fee Related CN203827866U (en) | 2014-02-17 | 2014-02-17 | Chinese mitten crab shelling concealing device |
Country Status (1)
Country | Link |
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CN (1) | CN203827866U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115443934A (en) * | 2022-10-17 | 2022-12-09 | 广西壮族自治区水产技术推广站 | Shielding net for improving cultivation survival rate of freshwater shrimp larvae and using method thereof |
-
2014
- 2014-02-17 CN CN201420067912.6U patent/CN203827866U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115443934A (en) * | 2022-10-17 | 2022-12-09 | 广西壮族自治区水产技术推广站 | Shielding net for improving cultivation survival rate of freshwater shrimp larvae and using method thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160217 |