CN105028268B - A kind of method that net cage classification is breeded fish - Google Patents
A kind of method that net cage classification is breeded fish Download PDFInfo
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- CN105028268B CN105028268B CN201510353961.5A CN201510353961A CN105028268B CN 105028268 B CN105028268 B CN 105028268B CN 201510353961 A CN201510353961 A CN 201510353961A CN 105028268 B CN105028268 B CN 105028268B
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- net cage
- interior
- fish
- mesh diameter
- feeding
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
-
- 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 the method that a kind of classification of net cage is breeded fish, including：Step 1: one interior net cage of offer and an outer net cage, the interior net cage are located at a corner of outer net cage, the roof of interior net cage and the mesh diameter of bottom wall are 3~7cm, and four side walls are fluid-tight；The interior net cage is separated into 3 layer box bodies by 2 interlaminar boards, and from top to bottom, the mesh diameter of first interlaminar board is 0.2~0.3cm, and the mesh diameter of second interlaminar board is l~2cm；Step 2: bred fish fry in outer net cage；Step 3: when the mesh diameter of the not up to interior net cage of the bust of all fries, input fish meal in inside net cage；The bust of fry to be had exceedes the mesh diameter of interior net cage, and first outwards feeding in net cage, feeding continue 20~30min, then 2~3min of inside net cage feeding；Daily, pumping for water pump is made, so as to form the current flowed from top to bottom in interior net cage.The present invention effectively can separate the fish of different building shape, reduce the possibility that the less fish of build is attacked.
Description
Technical field
The present invention relates to the cultural method of fish, more particularly to the method that a kind of classification of net cage is breeded fish.
Background technology
Since 1973, after China has introduced fish culture in net pen technology, when being developed to the 1980s, have lake,
The big water surface such as reservoir carries out cage culture area up to more than 500 hectares, and average per hectare production fish amount is 300 tons or so.Into 20 generation
Record since the nineties, fish culture in net pen industry amount shows booming trend, and cage culture scale and density are continuously increased, cultivation
Area and yield increase rapidly.
Existing fish culture in net pen technology is all as net cage using single casing.During cultivation, it may raise together different
Fish, the speed of growth of different fish is also different, and the fish that some speeds of growth are fast for certain, build is larger can attack the speed of growth
Slowly, the less fish of build, the economic loss of raiser is caused.
The content of the invention
For above-mentioned technical problem, the present invention has designed and developed one kind, the net cage classification for preventing small body type fish from being attacked
The method breeded fish.
Technical scheme provided by the invention is：
A kind of method that net cage classification is breeded fish, comprises the following steps：
Step 1: one interior net cage of offer and an outer net cage, the interior net cage are arranged on the inside of the outer net cage, are located at
One corner of the outer net cage, the roof of the interior net cage and the mesh diameter of bottom wall are 3~7cm, and four side walls are not
Permeable, the volume of the interior net cage is 1/3rd of outer net casing product, and first is connected with the upside of the interior net cage
Feeding pipe, the upper end cover of the first feeding pipe from the outer net cage pass through, and the first feeding pipe is located at the interior net cage
The centre position of upside, the second feeding pipe is connected with the upper end cover of the outer net cage, the second feeding pipe is positioned at described outer
Another corner of net cage；The interior net cage is separated into 3 layer box bodies by 2 interlaminar boards, from top to bottom, the mesh of first interlaminar board
A diameter of 0.2~0.3cm, the mesh diameter of second interlaminar board is 1~2cm；Water pump is set on orlop casing；
Step 2: bred fish fry in the outer net cage；
Step 3: when all fries bust not up in net cage roof and bottom wall mesh diameter when, then pass through
First feeding pipe puts into fish meal into the interior net cage；The bust of fry to be had exceedes the roof of interior net cage and the mesh of bottom wall
Diameter, the fish that bust exceedes the roof of interior net cage and the mesh diameter of bottom wall are limited by the interior net cage and can not swum into outer net
In case, first pass through feeding in the second outside net cage of feeding pipe, feeding continues 20~30min, afterwards again by the first feeding pipe to
2~3min of interior net cage feeding；Water pump is opened daily, makes the pumping for water pump, so as to be formed from top to bottom in the interior net cage
The current of flowing.
Preferably, in the method that the classification of described net cage is breeded fish, the roof of the interior net cage and the mesh diameter of bottom wall
For 3cm.
Preferably, in the method that the classification of described net cage is breeded fish, in the step 3, feeding continues 20min.
Preferably, in the method that the classification of described net cage is breeded fish, in the step 1, set and stir in the outer net cage
Mix device；In the step 3, one day 9:00 to 18:Between 00, the agitator is opened, to be formed in the outer net cage
Current.
Preferably, in the method that the classification of described net cage is breeded fish, the mesh diameter of first interlaminar board is 0.2cm, the
A diameter of 1cm of two interlaminar boards.
Preferably, in the method that the classification of described net cage is breeded fish, two hanger bars are welded with the upside of the interior net cage,
The end of the hanger bar has hook, has a pair of the suspension parts extended downwardly from, each hook in the upper end cover of the outer net cage
Hang on a suspension part, the interior net cage is hung in the outer net cage.
Preferably, in the method that the classification of described net cage is breeded fish, in the step 1, the side wall is by transparent modeling
Material is made.
In the method that net cage classification of the present invention is breeded fish, by the way of interior net cage and outer net housing-case are supported, interior net cage
Selection be 3~7cm, when without fish length reach the size when, fish can freely move about in interior net cage and outer net cage, at this
Stage, only inwardly net cage feeding all the time, so that the long fish to the size is limited in interior net cage by interior net cage, afterwards second
In the stage, just first outwards net cage feeding, is all attracted to feeding point, afterwards inside net cage feeding again, the present invention by the less fish of build
Effectively the fish of different building shape can be separated, reduce the possibility that the less fish of build is attacked.In addition, the present invention is also by Intranet
Case is designed to be separated into the structure of 3 layer box bodies by 2 interlaminar boards, and the mesh diameter of interlaminar board gradually increases from top to bottom, every
It special time opens water pump to form the current flowed from top to bottom in interior net cage, and the larger fish of build can be against current
It is travelling, so as to which the fish in interior net cage is divided into three kinds of builds again, build it is maximum be located at orlop, build it is medium positioned at second
Layer, build minimum are located at first layer.Because interior net cage is inevitably swum into a small amount of less fry of build, the present invention can
The touch opportunity between the fish of different building shape is reduced, and then reduces the possibility that the less fish of build is attacked.
Brief description of the drawings
Fig. 1 is the lateral plan of outer net cage of the present invention and interior net cage；
Fig. 2 is the top view of outer net cage of the present invention and interior net cage.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As depicted in figs. 1 and 2, the present invention provides a kind of method that net cage classification is breeded fish, and comprises the following steps：Step 1:
One interior net cage 2 is provided and an outer net cage 1, the interior net cage 2 are arranged on the inside of the outer net cage 1, positioned at the outer net cage
A corner, the roof of the interior net cage 2 and the mesh diameter of bottom wall are 3~7cm, and four side walls are fluid-tight, institute
The volume for stating interior net cage is 1/3rd of outer net casing product, and the first feeding pipe 6, institute are connected with the upside of the interior net cage
The upper end cover for stating the first feeding pipe from the outer net cage passes through, and the first feeding pipe 6 is located in the upside of the interior net cage
Between position, be connected with the second feeding pipe 7 in the upper end cover of the outer net cage, the second feeding pipe is located at the another of the outer net cage
One corner；The interior net cage is separated into 3 layer box bodies by 2 interlaminar boards, and from top to bottom, the mesh diameter of first interlaminar board 8 is
0.2~0.3cm, the mesh diameter of second interlaminar board 9 is 1~2cm；Water pump is set on the first layer box body 3；Step 2:
Bred fish fry in the outer net cage；Step 3: when the not up to interior roof of net cage of the bust of all fries and the mesh of bottom wall
During diameter, then fish meal is put into the interior net cage by the first feeding pipe；The bust of fry to be had exceedes the top of interior net cage
The mesh diameter of wall and bottom wall, bust exceedes the roof of interior net cage and the fish of the mesh diameter of bottom wall is limited by the interior net cage
It can not swim to outer net cage, first pass through feeding in the second outside net cage of feeding pipe, feeding continues 20~30min, led to again afterwards
Cross 2~3min of the inside net cage feeding of the first feeding pipe；Water pump is opened daily, makes the pumping for water pump, so as in the interior net cage
It is interior to form the current flowed from top to bottom.
Intranet housing-case is located in outer net cage by the present invention, is bred fish fry in outer net cage.Within the bust of no fish reaches
During the mesh diameter of the roof of net cage and bottom wall, fish can freely move about between interior net cage and outer net cage.In this stage, often
During secondary feeding, all only inwardly net cage feedings, all fishes are attracted all to swim to interior net cage, to ensure when fish is grown to certain build,
Naturally it is limited in interior net cage.
When the bust of fish exceedes the roof of interior net cage and the mesh diameter of bottom wall, fish can not swim out of interior net cage, only build
Smaller fish can freely move about.Interior net cage is set to be located at a corner of outer net cage in advance, the second feeding pipe is located at outer net cage
Another corner, so that the feeding point of interior net cage and outer net cage is relatively far apart.In second stage, first outwards net cage feeding, is treated
Feeding continues 20~30min, i.e., the substantially all of less fish of build, which all moves about to the feeding point of outer net cage, then inside net cage, throws
Food, now due to distant, the less fish of build can not move about to interior net cage within 2~3min time.It is of the invention real
The isolation of different building shape fish is showed, has reduced the touch opportunity of two kinds of fishes, attacked so as to reducing the less fish of build
Possibility, the economic loss of raiser can be reduced.
Meanwhile 1 is please see Figure, interior net cage is designed to the structure of multilayer by the present invention, i.e., interior net cage is separated into by 2 interlaminar boards
3 layer box bodies.From top to bottom, the mesh diameter of interlaminar board is gradually reduced, and specifically, the mesh diameter of first interlaminar board 8 is 0.2
~0.3cm, the mesh diameter of second interlaminar board 9 is 1~2cm.According to the characteristic of fish, the larger fish of build be more likely to against
Current move about.Interior net cage only has roof and bottom wall has mesh, and side wall is fluid-tight, and when opening water pump, just nature is in Intranet
Formed in case from downwardly directed current so that fish all moves about towards top, and (arrow of Fig. 1 pointing downwards represents current side
To arrow pointing up represents the swimming direction of fish in each casing).Now, bust is more than second interlaminar board
The fish of mesh diameter can only can not be moved about by second interlaminar board in orlop casing；Bust is more than first interlaminar board
The fish of mesh diameter orlop when it moves about against current, can not will not also be entered to by first interlaminar board substantially
Casing, i.e., it is basic only to be moved about in the second layer box body；Although the fish that bust is less than the mesh diameter of first interlaminar board can be with
Meaning passes through two interlaminar boards, but under flow action, can be also limited in the first layer box body substantially.By selecting first
The mesh diameter of the mesh diameter of interlaminar board and second interlaminar board, as far as possible the fish of different building shape can be avoided to mix, reduced
The loss of the less fish of build.
Preferably, the method that the classification of described net cage is breeded fish, the roof of the interior net cage and the mesh diameter of bottom wall are
3cm.Different types of fish shows aggressive opportunity difference, and the mesh diameter of interior net cage can select according to the characteristic of fish.
Preferably, in the method that the classification of described net cage is breeded fish, in the step 3, feeding continues 20min.
Preferably, in the method that the classification of described net cage is breeded fish, in the step 1, stirring is set in the outer net cage
Device 4；In the step 3, one day 9:00 to 18:Between 00, the agitator is opened, to be formed in the outer net cage
Current.In order to improve the liveness of fish, improve meat, a current are formed in outer net cage, promote fish to be moved about along current.
Preferably, in the method that described net cage classification is breeded fish, the mesh diameter of first interlaminar board is 0.2cm, second
A diameter of 1cm of individual interlaminar board.
Preferably, in the method that the classification of described net cage is breeded fish, two hanger bars 5 are welded with the upside of the interior net cage,
The end of the hanger bar 5 has hook, has a pair of the suspension parts extended downwardly from, each hook in the upper end cover of the outer net cage
Hang on a suspension part, the interior net cage is hung in the outer net cage.Interior net cage and outer net cage are not stationarily connected to
Together, but connected, be easy for installation and removal by suspended structure.
Preferably, interior net cage is entered in order to not influence light, described net cage is classified in the method breeded fish, the step 1
In, the side wall is made up of transparent plastics.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the legend with description.
Claims (7)
1. a kind of method that net cage classification is breeded fish, it is characterised in that comprise the following steps：
Step 1: providing an interior net cage and an outer net cage, the interior net cage is arranged on the inside of the outer net cage, positioned at described
One corner of outer net cage, the roof of the interior net cage and the mesh diameter of bottom wall are 3 ~ 7cm, and four side walls are waterproof
, the volume of the interior net cage is 1/3rd of outer net casing product, and the first feeding is connected with the upside of the interior net cage
Pipe, the upper end cover of the first feeding pipe from the outer net cage pass through, and the first feeding pipe is located at the upside of the interior net cage
Centre position, be connected with the second feeding pipe in the upper end cover of the outer net cage, the second feeding pipe is located at the outer net cage
Another corner；The interior net cage is separated into 3 layer box bodies by 2 interlaminar boards, from top to bottom, the mesh diameter of first interlaminar board
For 0.2 ~ 0.3cm, the mesh diameter of second interlaminar board is 1 ~ 2cm；Water pump is set on orlop casing；
Step 2: bred fish fry in the outer net cage；
Step 3: when all fries bust not up in net cage roof and bottom wall mesh diameter when, then pass through first
Feeding pipe puts into fish meal into the interior net cage；The bust of fry to be had is straight more than the roof of interior net cage and the mesh of bottom wall
Footpath, the fish that bust exceedes the roof of interior net cage and the mesh diameter of bottom wall are limited by the interior net cage and can not swum into outer net cage
It is interior, feeding in the second outside net cage of feeding pipe is first passed through, feeding continues 20 ~ 30min, afterwards again by the first feeding pipe to Intranet
2 ~ 3min of case feeding；Water pump is opened daily, makes the pumping for water pump, so as to form what is flowed from top to bottom in the interior net cage
Current.
2. the method that net cage as claimed in claim 1 classification is breeded fish, it is characterised in that the roof of the interior net cage and bottom wall
Mesh diameter is 3cm.
3. the method that net cage classification as claimed in claim 2 is breeded fish, it is characterised in that in the step 3, feeding is lasting
20min。
4. the method that net cage classification as claimed in claim 2 is breeded fish, it is characterised in that in the step 1, in the outer net
Agitator is set in case；In the step 3, one day 9:00 to 18:Between 00, the agitator is opened, with described outer
Current are formed in net cage.
5. the method that net cage as claimed in claim 1 classification is breeded fish, it is characterised in that the mesh diameter of first interlaminar board is
0.2cm, the mesh diameter of second interlaminar board is 1cm.
6. the method that net cage classification as claimed in claim 1 is breeded fish, it is characterised in that be welded with two on the upside of the interior net cage
Root hanger bar, the end of the hanger bar have hook, have a pair of the suspensions extended downwardly from the upper end cover of the outer net cage
Portion, respectively hang on a suspension part, the interior net cage is hung in the outer net cage.
7. the method that net cage classification as claimed in claim 4 is breeded fish, it is characterised in that in the step 1, the side wall is
It is made up of transparent plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353961.5A CN105028268B (en) | 2015-06-23 | 2015-06-23 | A kind of method that net cage classification is breeded fish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353961.5A CN105028268B (en) | 2015-06-23 | 2015-06-23 | A kind of method that net cage classification is breeded fish |
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| Publication Number | Publication Date |
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| CN105028268A CN105028268A (en) | 2015-11-11 |
| CN105028268B true CN105028268B (en) | 2017-12-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106614145A (en) * | 2016-12-28 | 2017-05-10 | 万仕军 | Method for breeding black carps through net cages in reservoir |
| CN107711627A (en) * | 2017-11-21 | 2018-02-23 | 广西焕耘电子商务有限公司 | One kind makes fish culture in net pen method |
| CN107996484B (en) * | 2018-02-01 | 2019-09-24 | 安徽省农业科学院水产研究所 | A kind of breeding method of multiple net cage induction monopterus albus fry classification |
| CN108834983B (en) * | 2018-07-16 | 2020-03-10 | 湖南文理学院 | Spacing aquaculture net case that prevents that culter fish from preying on juvenile fish and using |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267079B1 (en) * | 1999-08-26 | 2001-07-31 | Lisa A. Eby | Fish cage |
| GB2419796A (en) * | 2004-11-09 | 2006-05-10 | Radcliffe Lewis | Tank for the rearing of fish fry |
| JP5746545B2 (en) * | 2011-04-08 | 2015-07-08 | 協同組合マリンテクノ山口 | Fry protection and reef |
| CN201967505U (en) * | 2011-04-13 | 2011-09-14 | 中国水产科学研究院东海水产研究所 | Net cage for indoor opossum shrimp propagation and culture through small water body |
| CN201986540U (en) * | 2011-05-05 | 2011-09-28 | 成都伍田生物科技有限责任公司 | Fish fry and parent fish separating pond |
| CN103651196A (en) * | 2013-11-30 | 2014-03-26 | 任华英 | Breeding method capable of increasing guppy fry survival rate |
| CN204070144U (en) * | 2014-08-18 | 2015-01-07 | 杨成胜 | A kind of freshwater shrimp with activity mesh sheet breeds net cage |
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Effective date of registration: 20171123 Address after: 536000, the Guangxi Zhuang Autonomous Region, Beihai, Tieshan Port District, Hing town, Fu Housing Committee sand village 22 Applicant after: Xie Yuanlian Address before: The 536000 the Guangxi Zhuang Autonomous Region Beihai port city of Tieshan Yingpan Town neighborhood Camp Camp Village No. 138 Applicant before: Li Chengqi |
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