CN210113941U - Net cage system for breeding siganus - Google Patents
Net cage system for breeding siganus Download PDFInfo
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- CN210113941U CN210113941U CN201920609134.1U CN201920609134U CN210113941U CN 210113941 U CN210113941 U CN 210113941U CN 201920609134 U CN201920609134 U CN 201920609134U CN 210113941 U CN210113941 U CN 210113941U
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- net cage
- net
- seedling
- trapping
- siganus
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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 utility model discloses a net cage system of breeding basket fish places in breeding the sea area, including aquaculture net case, a plurality of adopt the seedling net case and trap the net case, adopt the seedling net case setting in aquaculture net case's outside, adopt and be provided with the attracting fodder in the seedling net case, trap the net case and set up inside aquaculture net case, the three minute of trapping net case top is respectively through stay cord traction to fixed connection on the frame at aquaculture net case top, trap the net case and expose half the surface of water, sink under water behind stay cord and the weight on another angular system of trapping the net case. By adopting the net cage system, the on-site seedling collection can be realized, the transportation stress is reduced while the seedling purchase cost is saved, the seedling does not need an adaptation process, and the survival rate is high. Meanwhile, the catching can be realized by lifting the trapping net cage. The system can realize uninterrupted seed throwing and big fish catching, and the culture net cage realizes circulating culture, so that the system is efficiently utilized and has better benefit.
Description
Technical Field
The utility model relates to an aquaculture technical field, in particular to breed box with a net system of siganus.
Background
Siganidae (Siganidae) widely distributed in the southeast coast and southeast asia of china, and common breeding species are Siganidae (s.fusceosesens) and Siganidae (s.guttatus). Siganus are omnivorous fishes mainly used for herbivory, frequently inhabit rock reefs or coral reefs, are favored to gnaw attached algae, are used for cleaning the algae in net cages by local farmers for a long time in some coastal areas in south China, and are called enteromorpha cleaning doffers.
The meat of the siganids is delicious, rich in nutrition and unique in flavor, and is deeply loved by consumers; and because of the characteristic of omnivorous diet, the feed cost can be greatly reduced, so the breeding industry is rapidly developed in recent years, the breeding industry becomes a new breeding object in the south east coast of China, and the breeding mode is diversified.
At present, the large-scale artificial breeding work of siganus has not made a substantial breakthrough, the fry supply basically depends on natural sea area fishing, the fry is easy to die under stress in the transportation process, and the survival rate is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a breed box with a net system of siganus, adopt this system can realize adopting the seedling on the spot and breed the fry, avoid this process of fry transportation, solved the lower this problem of survival rate.
The technical scheme adopted for solving the technical problems is as follows: a net cage system for culturing siganus is placed in a culturing sea area and comprises a culturing net cage, a plurality of fry collecting net cages and trapping net cages, wherein the fry collecting net cages are arranged outside the culturing net cage, fish attracting feed is arranged in the fry collecting net cages, the trapping net cages are arranged inside the culturing net cages, three corners at the top of the trapping net cages are respectively dragged to a frame fixedly connected to the top of the culturing net cage through pull ropes, half of the trapping net cages are exposed out of the water surface, and the pull ropes and weights are arranged on the other corner of the trapping net cages and then sink into the water.
As an improvement of the scheme, a material enclosing net is arranged in the trapping net cage, and fish luring feed is arranged in the material enclosing net.
As an improvement of the scheme, the enclosing net is in a ring shape, the enclosing net floats on the water surface under the traction of the rope, and the diameter of the fish luring feed in the enclosing net is larger than the meshes of the enclosing net.
As an improvement of the scheme, the aquaculture net cage is an anti-wind-wave type deep-water net cage, the circumference is 30-50 m, the depth of a net cover is 4-6 m, and meshes on the net cover are set to be 2-3 cm.
As an improvement of the scheme, the specification of the seedling collecting net cage is 3m x 2m, and the mesh is 1.5-2 cm.
As an improvement of the scheme, the fish luring feed in the fry collecting net cage is large-particle floating feed, and the diameter of the large-particle floating feed is larger than the diameter of meshes of the fry collecting net cage.
As an improvement of the proposal, the wall of the netting of the fry collecting net cage is provided with a plurality of fish inlet holes, the fish inlet holes are wide outside and narrow inside, and the fish inlet holes are gradually reduced from the outside of the fry collecting net cage to the inside of the fry collecting net cage.
As an improvement of the scheme, the specification of the trapping net cage is 3m x 2m, and the mesh is 8-10 cm.
Has the advantages that: by adopting the net cage system, the on-site seedling collection can be realized, the transportation stress is reduced while the seedling purchase cost is saved, the seedling does not need an adaptation process, and the survival rate is high. Meanwhile, the catching can be realized by lifting the trapping net cage. The system can realize uninterrupted seed throwing and big fish catching, and the culture net cage realizes circulating culture, so that the system is efficiently utilized and has better benefit.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic structural view of a trapping net cage and a material enclosing net arranged in a culturing net cage;
FIG. 2 is a schematic structural view of a seedling-picking net cage;
fig. 3 is a schematic plan view of the fish inlet hole.
Detailed Description
Referring to fig. 1 to 3, the utility model provides a net cage system for culturing siganus, which is placed in a culture sea area. Specifically comprises a culture net cage, a plurality of seedling picking net cages 60 and a trapping net cage 30. Wherein the fry collecting net cage 60 can be arranged outside the culture net cage in a surrounding way, and fish luring feed is arranged in the fry collecting net cage 60. The fry collecting net cage 60 realizes on-site fry collection, collected fries can be thrown into the culture net cage for culture, the fry purchasing cost is saved, the transportation stress is reduced, the fry does not need an adaptation process, and the survival rate is high.
The trapping net cage 30 is arranged in the aquaculture net cage, and the three corners at the top of the trapping net cage 30 are respectively pulled to the frame 10 fixedly connected to the top of the aquaculture net cage through the pull ropes 20, so that half of the trapping net cage 30 is exposed out of the water, and the pull ropes 20 and the weights 40 are arranged at the other corner of the trapping net cage 30 and then sink into the water. The whole trapping net cage 30 is obliquely placed in the culture net cage, fish luring feed is placed in the trapping net cage 30, and the siganus enters the trapping net cage 30 at the luring downstream of the fish luring feed.
The farmer only needs to lift the trapping net cage 30 to realize the fishing. The system can realize uninterrupted seed throwing and big fish catching, and the culture net cage realizes circulating culture, so that the system is efficiently utilized and has better benefit.
Preferably, the trapping net cage 30 is internally provided with a surrounding net 50, and the surrounding net 50 surrounds the fish luring feed, so that the fish luring feed is prevented from drifting away from the trapping net cage 30 under the action of water flow, and the trapping net cage 30 cannot finish fishing. Specifically, the enclosing net 50 is in a ring shape, the enclosing net 50 floats on the water surface under the traction of the rope, and the enclosing net 50 can also be drawn to the frame 10 at the top of the aquaculture net box through the rope to be fixed. In order to avoid the loss of the fish luring feed, the diameter of the fish luring feed in the enclosing net 50 should be larger than the meshes on the enclosing net 50.
Preferably, a plurality of fish inlet holes 61 are arranged on the wall of the net of the fry collecting net cage 60, the fish inlet holes 61 are wide outside and narrow inside and are concave inwards, and the fish inlet holes gradually become smaller from the outside of the fry collecting net cage 60 to the inside of the fry collecting net cage 60. In this embodiment, the cross-section of the fish inlet 61 is approximately elliptical, and the shape is adapted to the shape of the fish. The fish inlet hole 61 is formed to have a wide outer side and a narrow inner side, thereby preventing the siganus from being wandered out from the fish inlet hole 61. The material is plastic, steel wire or galvanized iron wire.
The fish luring feed is large-particle buoyancy feed, and the diameter of the large-particle buoyancy feed is larger than the diameter of the meshes of the fry collecting net cage 60, so that the fry collecting net cage 60 cannot float.
The net cage system is adopted for cultivation, and specifically comprises the following steps:
(1) selecting a culture sea area and a culture net cage: selecting offshore bay with small wind wave, good water quality, smooth tide, good wind-sheltering effect, water depth of more than 10m and rich wild siganus resources in the breeding sea area; the HDPE C43 type wind and wave resistant deep water net cage is selected as the cultivation net cage, the circumference of the cultivation net cage is 30-50 m, the net is made of polyethylene materials, the depth is 4-6 m, and the mesh is 2-3 cm. (2) Harvesting and releasing seedlings: a plurality of seedling collecting net cages 60 are arranged near the culture net cage, the specification of the seedling collecting net cages 60 is 3m x 2m, the net holes are 1.5-2 cm, and a plurality of fish feeding holes 61 are formed in the wall of the net. Fish luring feed is scattered in the fry collecting net cage 60, and wild siganus are attracted to enter the fry collecting net cage 60 from the fry inlet 61, so that the purpose of capturing harvested fries is achieved. Transferring the fry from the fry collecting net cage 60 to the culture net cages every 1-2 days, and putting 3-5 thousands of fries in each culture net cage. (3) Breeding management, feeding the fry stage by stage according to the requirement until the fry grows up: only vegetable leaves are fed within one week, 1 time per day, 10-15 kg each time. Feeding the feed pellets one week later, feeding the feed pellets 3 times a day by using the floating feed for the large-particle marine fishes according to the characteristic that the siganus are favored, wherein the daily feeding amount is 3-5% of the total weight of the fishes, and timely adjusting the feeding amount according to the feeding condition. The garlicin is mixed with the feed and fed for one day every week, and the feed is stopped and the vegetable leaves are fed for one day. (4) Fishing: after four months of culture, the fish can be captured when the weight of the fish exceeds 50g, and the fish is captured in a mode of rotating for capture and keeping large and small. The trapping net cage 30 is manufactured by using net cages with the specification of 3m x 2m and meshes of 8-10 cm, the trapping net cage 30 is placed in the culture net cage, three corners of the trapping net cage 30 are tied on the culture net cage frame 10, the other corner of the trapping net cage 30 is a pull rope 20 and a weight 40 and then sinks into water, half of the whole trapping net cage 30 is exposed out of the water surface, and the other half of the whole trapping net cage is pulled to go deep into the water bottom under the action of the gravity of the weight 40. The other end of the pull rope 20 is tied on the frame 10 opposite to the aquaculture net cage. A material enclosing net 50 is arranged in the middle of the trapping net cage 30; the feed is thrown into the enclosing net 50 for luring, when enough fish enter the trapping net cage 30, the pulling rope 20 can be pulled up to harvest big fish, and small fish can escape through the meshes. The siganus can not be eaten by oneself, and the fingerlings can be supplemented to continue to be cultured when the siganus is sold out, so that the effect of uninterrupted culture throughout the year is achieved.
The protein content in the floating feed for the large-particle marine fish is controlled to be 30-40%.
The utility model discloses possess following advantage:
1. the wind-wave-resistant deepwater net cage is used for culturing, the depth is enough, the dissolved oxygen is sufficient, and the problem that the siganus are easy to die due to oxygen deficiency in other culture modes due to high temperature is solved.
2. The multiple seedling collecting net cages 60 can realize batch seedling collection nearby, the seedling purchasing cost is saved, meanwhile, the transportation stress is reduced, the seedling does not need to be adapted, and the survival rate is high.
3. The whole net does not need to be lifted for catching, and the trapping net cage 30 is used for skillfully catching, so that the physical strength is saved.
5. Is convenient for realizing the rotation of the catch, the large catch and the small catch, the timely seedling supplement and the circular culture, and can greatly improve the culture benefit.
The following is adopted the utility model discloses breeding system carries out the embodiment of breeding:
3 ~ 11 months in 2018, adopt in Shenzhen great asian bay territory the method develop the unrestrained deep water net cage breeding test of macular siganus anti-wind, specifically as follows:
selecting a Shenzhen great Yaya bay scientific research sea to which a Shenzhen test base of the south sea aquatic research institute belongs, wherein the sea area is small in wind wave, good in water quality, smooth in tide, good in wind-shielding effect and 13m in the depth of the falling tide; the periphery is close to the east mountain aquaculture fish raft, and the wild siganus oramin is attracted by the aquaculture residual bait and is abundant in resources. The cultivation net cage is an HDPEC43 type wind wave resistant deepwater net cage built by 2 Shenzhen deepwater net cage technology Limited company, the perimeter is 43m, and the netting is made of imported polyethylene materials, the depth is 6m, and the mesh is 2.5 cm.
In 3 middle of the month in 2018, a large number of wild siganus oramin fry seeds are found in the sea area, and the fry harvesting work is started. 3 seedling collecting net cages 60 with the specification of 3m x 2m and meshes of 2cm are arranged on the idle deep water net cage frame 10, seedlings are trapped and thrown in one circle, 4 thousands of seedlings are thrown in 2 net cages on average, and the specification of the seedlings is 200/jin.
The lettuce leaves are fed in the culture net cage within one week, 1 time per day, and 15kg per mouth each time. Feeding floating materials one week later, and feeding the floating materials with a 'Jianma brand' marine fish compound feed produced by Fujian Tianma group, wherein the specification is 8# to 10# and the protein content is 38%; feeding for 3 times every day, wherein the daily feeding amount is 5% of the total weight of the fish, and timely adjusting the feeding amount according to the feeding condition. 0.1 percent of garlicin is mixed with feed and fed for one day every week, and the feed is stopped and vegetable leaves are fed for one day.
In the early 7 months in 2018, nearly four months of cultivation, a net cage is integrally caught and sold, the total weight of siganus is 4220 jin, the average weight is 68g by sampling, and the cultivation yield of siganus is 77.57%. Fishing the other aquaculture net cage 7 in batches for marketing, and using the trapping net cage 30 with the specification of 3m x 2m and the mesh of 10cm to sell 3400 jin in total; 3 thousands of seedlings are replenished for culture after trapping is stopped, 5450 jin of seedlings are caught and sold at the beginning of 11 months, and 8850 jin of total weight of the caught siganus is collected for two times.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (8)
1. The utility model provides a net cage system of breeding siganus, places in breeding the sea area, its characterized in that: the trapping net cage is arranged outside the breeding net cage, fish attracting feed is arranged in the seedling collecting net cage, the trapping net cage is arranged inside the breeding net cage, three corners at the top of the trapping net cage are respectively pulled to a frame fixedly connected to the top of the breeding net cage through pull ropes, one half of the trapping net cage is exposed out of the water surface, and the other corner of the trapping net cage is submerged after the pull ropes and the weight are arranged.
2. The net cage system for farming siganus as claimed in claim 1, wherein: a material enclosing net is arranged in the trapping net cage, and fish luring feed is arranged in the material enclosing net.
3. The net cage system for farming siganus as claimed in claim 2, wherein: the fish attracting net is characterized in that the enclosing net is in an annular shape, the enclosing net floats on the water surface under the traction of the rope, and the diameter of the fish attracting feed in the enclosing net is larger than the meshes of the enclosing net.
4. The net cage system for farming siganus as claimed in claim 1, wherein: the aquaculture net cage is an anti-wind-wave deep-water net cage, the circumference is 30-50 m, the depth of a net cover is 4-6 m, and meshes on the net cover are set to be 2-3 cm.
5. The net cage system for farming siganus as claimed in claim 1, wherein: the specification of the seedling collecting net cage is 3m x 2m, and the mesh is 1.5-2 cm.
6. The net cage system for farming siganus as claimed in claim 5, wherein: the fish luring feed in the fry collecting net cage is large-particle floating feed, and the diameter of the large-particle floating feed is larger than the diameter of meshes of the fry collecting net cage.
7. The net cage system for farming siganus as claimed in claim 5, wherein: the wall of the net of the seedling-picking net cage is provided with a plurality of fish inlet holes, the fish inlet holes are wide outside and narrow inside, and the fish inlet holes gradually decrease from the outside of the seedling-picking net cage to the inside of the seedling-picking net cage.
8. The net cage system for farming siganus as claimed in claim 1, wherein: the specification of the trapping net cage is 3m x 2m, and the mesh is 8-10 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920609134.1U CN210113941U (en) | 2019-04-29 | 2019-04-29 | Net cage system for breeding siganus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920609134.1U CN210113941U (en) | 2019-04-29 | 2019-04-29 | Net cage system for breeding siganus |
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| Publication Number | Publication Date |
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| CN210113941U true CN210113941U (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920609134.1U Expired - Fee Related CN210113941U (en) | 2019-04-29 | 2019-04-29 | Net cage system for breeding siganus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115039729A (en) * | 2022-06-21 | 2022-09-13 | 浙江省海洋水产研究所 | Small yellow croaker transition device and method capable of improving survival rate |
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2019
- 2019-04-29 CN CN201920609134.1U patent/CN210113941U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115039729A (en) * | 2022-06-21 | 2022-09-13 | 浙江省海洋水产研究所 | Small yellow croaker transition device and method capable of improving survival rate |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200228 Termination date: 20210429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |