CN105210951A - For the net cage of fry domestication and the method for domestication fry thereof - Google Patents
For the net cage of fry domestication and the method for domestication fry thereof Download PDFInfo
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- CN105210951A CN105210951A CN201510711866.8A CN201510711866A CN105210951A CN 105210951 A CN105210951 A CN 105210951A CN 201510711866 A CN201510711866 A CN 201510711866A CN 105210951 A CN105210951 A CN 105210951A
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- fry
- domestication
- net
- intranet
- net cage
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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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Abstract
The invention discloses a kind of method of net cage for fry domestication and domestication fry thereof, net cage for fry domestication comprises net cage frame, net cage frame inside is provided with the Intranet and middle net made with flexible material, the inner chamber that Intranet is formed forms domestication district, middle net is arranged on below Intranet and by Intranet and is included in its inner chamber, mesh online during interior online mesh is less than; The top of middle net is fixed on net cage frame, the top of Intranet to be fixed on net cage frame or in online; Also be provided with spacer screen in net cage frame, Intranet and middle net are all arranged in the inner chamber that spacer screen formed.The method of domestication fry, comprises the following steps: put in Intranet by fry to be tamed, carries out taming and cultivating; After fry meets the requirements, Intranet extracted out, fry enters in middle net; Large and small fry mentions middle net after being separated; Continue hatching.Not only can save bait, and significantly can improve the survival rate of fry.
Description
Technical field
The present invention relates to aquaculture field, particularly relate to a kind of method of net cage for fry domestication and domestication fry thereof.
Background technology
Perch is carnivorous grazing eclipse fish, during artificial feeding, due to live bait lazy weight and feeding high in cost of production reason, needs perch to tame into gulp down feeding fish.Treat that fry opens about 15mm and can start domestication, first right place throws in live bait 2 to 3 days, after fry custom fixed point is ingested, throw in all kinds of summer flowers, fresh small fish, the strip flesh of fish, tadpole, spiral shell meat, aquatic insect etc. of just having die and eat transition raw, after fry adapts to, reduce gradually and eat ratio raw, increase artifical compound feed, feed artificial feed until change completely, namely complete the process of domestication.
At present, fry domestication is carried out, because perch is predacious fish in pond, in domestication process, there will be the phenomenon that advanced fry eats hatching, therefore, after the differentiation of fry body length, need whole fry to salvage, adopt fish sieve advanced fry and hatching to be separated.Due to the area more than at least 1 mu in pond, area is too large, be not easy fry to be focused on a release position, need many places bait throwing in, and due to pond area large, release position fry density is low, the bait thrown in much sinks at the bottom of pond, is not absorbed by fry, causes bait to waste, and too much bait is deposited at the bottom of pond, easily cause pond eutrophication; Meanwhile, adopt fish screening to select large and small fry, easily make fry injured even dead, therefore through fish sieve select advanced fry, hatching survival rate generally only have about 85%.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of net cage for fry domestication, adopts its domestication fry, not only can save bait, and significantly can improve the survival rate of fry.
The present invention solves the net cage for fry domestication that its technical problem adopts, comprise net cage frame, described net cage frame inside is provided with the Intranet and middle net made with flexible material, the inner chamber that described Intranet is formed forms domestication district, described middle net is arranged on below Intranet and by Intranet and is included in its inner chamber, mesh online during described interior online mesh is less than; The top of described middle net is fixed on net cage frame, the top of described Intranet to be fixed on net cage frame or in online; Also be provided with spacer screen in described net cage frame, described Intranet and middle net are all arranged in the inner chamber that described spacer screen formed.
Further, also comprise the first dead lever and the second dead lever, described first dead lever and the second dead lever are placed on the fixed mount on net cage frame, and the both sides that described middle net is corresponding are fixedly connected on described first dead lever and the second dead lever.
Further, described Intranet is movably connected on described first dead lever and the second dead lever.
Further, oxygen-increasing device is provided with in described domestication district.
Further, the mesh on described spacer screen is greater than interior online mesh.
The present invention also provides a kind of method adopting the above-mentioned net cage domestication fry for fry domestication, comprises the following steps:
A, by be used for fry domestication net cage be placed in fishpond, fry to be tamed is put in Intranet, carries out taming and cultivating;
B, through domestication after a while and cultivation, after fry meets the requirements, by Intranet extract out, fry enters in middle net;
C, the fry entered in middle net, treat that fry that body footpath is less than middle net meshe enters in spacer screen through the mesh of middle net, the fry that body footpath is greater than middle net meshe is stayed after in middle net, mentions middle net;
The fry in spacer screen is stayed, until all fries complete domestication and cultivate in D, continuation domestication step C.
The invention has the beneficial effects as follows: adopt the net cage domestication fry for fry domestication of the present invention, because the area of net cage is little, fry is concentrated, bait is only thrown in net cage, bait can be saved, and the process of sorting advanced fry, hatching, because Intranet detaches in water, fry can not be subject to the injury of mesh; When simultaneously fry is by middle net, due to fry be move about voluntarily in water through, the situation that fry comes to harm also obviously reduces and reduces, and substantially increases the survival rate of fry.
Accompanying drawing explanation
Fig. 1 is schematic top plan view of the present invention;
Fig. 2 is schematic front view when using fry of the present invention domestication net cage domestication fry;
Shown in Fig. 1: 1-fishpond, 2-net cage frame, 3-tames district, 31-Intranet, net in 32-, 33-spacer screen, 4-fixed mount, 52-first dead lever, 52-second dead lever.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As depicted in figs. 1 and 2, by the net cage for fry domestication of the present invention, comprise net cage frame 2, be as the criterion with intensity so that overall fixing can be met.Be provided with the Intranet 31 and middle net 32 made with flexible material in described net cage frame 2 inside, the inner chamber that Intranet 31 is formed forms the domestication district 3 of domestication fry; Middle net 32 is arranged on below Intranet 31, and Intranet 31 is included in its inner chamber.Width of mesh in Intranet 31 can not be as the criterion through mesh with fry to be tamed, otherwise fry is through the effect entered after mesh by impact domestication and cultivation in the inner chamber of middle net 32.Width of mesh on middle net 32 is so that through domestication with after cultivating, in applicable fish pond, the fry of nursing or sale can not through being as the criterion.Therefore, the mesh in Intranet 31 is less than the mesh on middle net 32.The top of described middle net 32 is fixed on net cage frame 2, and the top of described Intranet 31 is fixed on net cage frame 2 or on middle net 32.In net cage frame 2, be also provided with spacer screen 33, Intranet 31 and middle net 32 are all arranged in the inner chamber that spacer screen 33 formed.
Adopt fry of the present invention to tame the method for net cage domestication fry, comprise the following steps:
A, fry is tamed net cage be placed in fishpond 1, fry to be tamed is put in Intranet 31, carry out taming and cultivating; Mesh due to Intranet 31 is less than the size of fry to be tamed, and fry can not swim out of Intranet 31 from mesh;
B, through domestication after a while and cultivation, after fry meets the requirements, Intranet 31 extracted out, fry enters in middle net 32; Because Intranet 31 adopts flexible material, and adopt the mode detached, injury can not be produced to fry, improve the survival rate of fry;
C, the fry entered in middle net 32, treat that fry that body footpath is less than middle net 32 mesh enters in spacer screen 33 through the mesh of middle net 32, the fry that body footpath is greater than middle net 32 mesh is stayed after in middle net 32, mentions middle net 32; Pull out being applicable to rendering in fish pond the fry of feeding or selling;
The fry in spacer screen 33 is stayed, until all fries complete domestication and cultivate in D, continuation domestication step C.
Adopting in above-mentioned fry domestication net cage domestication fry process, adopt the net cage domestication fry being used for fry domestication, because the area of net cage is little, fry is concentrated, bait is only thrown in net cage, can bait be saved, and due to Intranet 31 be detach in water, fry can not be subject to the injury of mesh; When simultaneously fry is by middle net 32, due to fry be in water voluntarily travelling through, the situation that fry comes to harm also obviously reduces and reduces, and the survival rate of fry is all more than 95%.
As depicted in figs. 1 and 2, as preferred embodiment, net cage for fry domestication also comprises the first dead lever 51 and the second dead lever 52, described first dead lever 51 and the second dead lever 52 are placed on the fixed mount 4 on net cage frame 2, and the both sides of described middle net 32 correspondence are fixedly connected on described first dead lever 51 and the second dead lever 52.During domestication fry, the first dead lever 51 and the second dead lever 52 are placed on the fixed mount 4 on net cage frame 2, prevent middle net 32 from moving and landing; And when middle net 32 being mentioned the fry pulled out and be applicable to rendering in fish pond and feed or sell, be convenient to grip.
Owing to being in flexible state when Intranet 31 detaches from water, therefore, the modes such as described Intranet 31 employing is tied up, bonding are movably connected on the first dead lever 51 and the second dead lever 52, unclamp fixing, just can conveniently detach.
Exchange for the ease of water body inside and outside net cage, obtain sufficient oxygen and natural bait, as long as spacer screen 33 can prevent fry from swimming across from its hole, first rendering in Intranet 31 due to fry just enters in spacer screen 33 after domestication a period of time, fry body is long to be increased to some extent, therefore, as preferred embodiment, the mesh on described spacer screen 33 is greater than the mesh in Intranet 31.
Along with fry constantly grows up, need to keep higher oxygen content in water could meet the demand of fry normal growth, therefore, as preferred embodiment, in described domestication district 3, be provided with oxygen-increasing device.When the oxygen content in water is not enough, then opening oxygen-increasing device is that domestication district's oxygenation is to meet the demand of fry normal growth.
Claims (6)
1., for the net cage of fry domestication, comprise net cage frame (2), it is characterized in that:
Described net cage frame (2) inside is provided with the Intranet (31) made with flexible material and middle net (32), the inner chamber that described Intranet (31) is formed forms domestication district (3), described middle net (32) is arranged on Intranet (31) below and is included in its inner chamber by Intranet (31), and the mesh in described Intranet (31) is less than the mesh on middle net (32);
The top of described middle net (32) is fixed on net cage frame (2), and the top of described Intranet (31) is fixed on net cage frame (2) or on middle net (32);
Also be provided with spacer screen (33) in described net cage frame (2), described Intranet (31) and middle net (32) are all arranged in the inner chamber that described spacer screen (33) formed.
2. as claimed in claim 1 for the net cage of fry domestication, it is characterized in that: also comprise the first dead lever (51) and the second dead lever (52), described first dead lever (51) and the second dead lever (52) are placed on the fixed mount (4) on net cage frame (2), and the both sides of described middle net (32) correspondence are fixedly connected on described first dead lever (51) and the second dead lever (52).
3., as claimed in claim 2 for the net cage of fry domestication, it is characterized in that: described Intranet (31) is movably connected on described first dead lever (51) and the second dead lever (52).
4., as claimed any one in claims 1 to 3 for the net cage of fry domestication, it is characterized in that: in described domestication district (3), be provided with oxygen-increasing device.
5., as claimed any one in claims 1 to 3 for the net cage of fry domestication, it is characterized in that: the mesh on described spacer screen (33) is greater than the mesh in Intranet (31).
6. adopt the method for the net cage domestication fry for fry domestication according to any one of claim 1 to 5, it is characterized in that, comprise the following steps:
A, by be used for fry domestication net cage be placed in fishpond (1), fry to be tamed is put in Intranet (31), carries out taming and cultivating;
B, through domestication after a while and cultivation, after fry meets the requirements, by Intranet (31) extract out, fry enters in middle net (32);
C, the fry entered in middle net (32), treat that fry that body footpath is less than middle net (32) mesh enters in spacer screen (33) through the mesh of middle net (32), the fry that body footpath is greater than middle net (32) mesh is stayed after in middle net (32), mentions middle net (32);
The fry in spacer screen (33) is stayed, until all fries complete domestication and cultivate in D, continuation domestication step C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711866.8A CN105210951A (en) | 2015-10-28 | 2015-10-28 | For the net cage of fry domestication and the method for domestication fry thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510711866.8A CN105210951A (en) | 2015-10-28 | 2015-10-28 | For the net cage of fry domestication and the method for domestication fry thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105210951A true CN105210951A (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510711866.8A Pending CN105210951A (en) | 2015-10-28 | 2015-10-28 | For the net cage of fry domestication and the method for domestication fry thereof |
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| CN (1) | CN105210951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269031A (en) * | 2019-08-02 | 2019-09-24 | 湖州师范学院 | A kind of Micropterus salmonoides seed automation domesticating device and its application method |
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| CN201595082U (en) * | 2010-01-13 | 2010-10-06 | 宁波市海洋与渔业研究院 | Multi-layer solid mariculture net cage |
| CN102100207A (en) * | 2011-01-06 | 2011-06-22 | 宁波大学 | Graded culture method for large yellow croaker fry |
| CN102792908A (en) * | 2012-08-14 | 2012-11-28 | 中国水产科学研究院东海水产研究所 | Net cage for dietary domestication of siniperca scherzeri as well as use method thereof |
| CN103461241A (en) * | 2013-09-09 | 2013-12-25 | 西华大学 | Safe ecological multi-layer aquaculture net cage |
| KR20150068044A (en) * | 2013-12-11 | 2015-06-19 | 김범철 | Structure for culturing marine seeds |
| CN205093373U (en) * | 2015-10-28 | 2016-03-23 | 新津兴天地农业开发有限公司 | A box with a net for fry domestication |
-
2015
- 2015-10-28 CN CN201510711866.8A patent/CN105210951A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201595082U (en) * | 2010-01-13 | 2010-10-06 | 宁波市海洋与渔业研究院 | Multi-layer solid mariculture net cage |
| CN102100207A (en) * | 2011-01-06 | 2011-06-22 | 宁波大学 | Graded culture method for large yellow croaker fry |
| CN102792908A (en) * | 2012-08-14 | 2012-11-28 | 中国水产科学研究院东海水产研究所 | Net cage for dietary domestication of siniperca scherzeri as well as use method thereof |
| CN103461241A (en) * | 2013-09-09 | 2013-12-25 | 西华大学 | Safe ecological multi-layer aquaculture net cage |
| KR20150068044A (en) * | 2013-12-11 | 2015-06-19 | 김범철 | Structure for culturing marine seeds |
| CN205093373U (en) * | 2015-10-28 | 2016-03-23 | 新津兴天地农业开发有限公司 | A box with a net for fry domestication |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110269031A (en) * | 2019-08-02 | 2019-09-24 | 湖州师范学院 | A kind of Micropterus salmonoides seed automation domesticating device and its application method |
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Application publication date: 20160106 |
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