CN102415344A - Misgurnus anguillcaudatus loop net cage propagation method - Google Patents
Misgurnus anguillcaudatus loop net cage propagation method Download PDFInfo
- Publication number
- CN102415344A CN102415344A CN2011102446615A CN201110244661A CN102415344A CN 102415344 A CN102415344 A CN 102415344A CN 2011102446615 A CN2011102446615 A CN 2011102446615A CN 201110244661 A CN201110244661 A CN 201110244661A CN 102415344 A CN102415344 A CN 102415344A
- Authority
- CN
- China
- Prior art keywords
- loach
- cage
- circuit
- net cage
- breeding
- 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.)
- Pending
Links
Images
Classifications
-
- 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 belongs to the technical field of aquaculture, and in particular relates to a technology for allowing misgurnus anguillcaudatus to propagate and lay eggs in a net cage arranged in a hatching loop and allowing fertilized eggs to fall into the hatching loop from the cage to directly hatch in the hatching loop. An integrated large net cage or a plurality of independent large net cages are placed in the hatching loop and used as a site for mating and egg laying of parent misgurnus anguillcaudatus injected with a sexual maturity promoting agent, the net cages are moved out after egg laying is finished, and meanwhile, the parent misgurnus anguillcaudatus which has laid eggs is moved out. The misgurnus anguillcaudatus eggs fall into the loop from the meshes and directly enter the hatching process. By the method, the parent misgurnus anguillcaudatus can be effectively prevented from swallowing spawns and is difficultly hurt, and the misgurnus anguillcaudatus eggs have low loss and good propagation effect. By the method, the transfer process of the eggs is saved, the labor intensity is greatly reduced, and the work efficiency is improved.
Description
Technical field
The invention belongs to technical field of aquaculture, specifically be exactly a kind of let breed in the net cage of loach in being arranged at circular hatching channal lay eggs the fertilized egg entering circular hatching channal that drops in the case, the technology of directly in circular hatching channal, hatching on the spot.
Background technology
Loach (Misgurnus anguillcaudatus) belongs to Cypriniformes, Cyprinoidei, Cobitidae, flower loach subfamily, loach genus; The big secondary loach of squama (Paramisgurnus dabryanus Sauvage) belongs to Cypriniformes, Cyprinoidei, Cobitidae, secondary loach genus.Generally speaking, custom is referred to as loach to secondary loach of big squama and loach.Loach is distributed widely in Japan, Korea, China and Southeast Asia.Loach has very high nutritive value and medical value, have the title of " genseng in the water ", can tonifying middle-Jiao and Qi, dispel damp evil, quench one's thirst and sober up, dispel that poison removes hemorrhoid, liver is protected in detumescence.Loach at home and abroad market also is in the state of selling well always, and loach export trade amount increases year by year in recent years, and the consumption figure of domestic loach also constantly rises.Loach is cultured scale and enlarges year by year; Simultaneously, loach is strong because of its adaptability, disease is few, survival rate is high, bait is easy to get, and has become important aquaculture object.
Along with loach is cultured the expansion of scale, the demand of loach seed is increased considerably, seed has become loach and has cultured the main restricting factor that can scale enlarge.How to improve fertilization rate and incubation rate that close loach produces the loach ovum, reducing damage promptly is its key point.In the existing loach modes of reproduction, mainly contain two kinds of methods of artificial insemination and natural spawning.Therefore and because the loach individuality is less, epidermal mucus is many, and it is bigger to carry out test-tube labour intensity, and the damage to close loach is very big in the operating process, very easily causes parent population dead postpartum.Therefore, the seed that is used at present to propagate artificially mainly is to lean on parent population natural mating, natural spawning to obtain.The simple estrualization agent of not injecting adopts the mode of throwing in the fish nest to carry out pond natural spawning, egg-laying time and does not concentrate, field perdurabgility of laying eggs, and pond hatching efficient is lower; After adopting the injection estrualization agent, it is more concentrated to lay eggs, and the effect of laying eggs is better; But the loach fertilized egg of adopting the fish nest to collect is dropped easily, hatches through collecting the fertilized egg of dropping once more, need expend more manpower and time; And cause the fertilized egg damage easily, influence the effect of hatching.
The ovum of loach belongs to viscid egg, and natural propagation is to stick on the pasture and water to hatch, but the viscosity of loach ovum is not strong, is easy to come off, and all can to the loach seedling, just die on the vine not hatching as yet and fall into water-bed loach ovum major part, and incubation rate is lower.If carry out the flowing water hatching after adopting fertilized egg collection, then can improve loach fertilized egg hatching rate greatly with loach.
[0004] after close loach laid eggs, under hungry situation, therefore the loach ovum of can eating, must be removed the close loach that produced ovum as early as possible.Usually the fish nest is shifted out in employing earlier, removes the method for close loach again.Because the loach body is little smooth, Quick off the mark, but in the process that shifts close loach, cause the damage of loach ovum and close loach easily.Laying eggs of parent loach can continue the long time, and this stage acutely the moving about and stirs of parent loach can cause the landing of most ovum grain, makes and adopts the loach egg hatching rate that the fish nest is hatched to be difficult to raising.
Summary of the invention
The present invention is applicable to the breeding of the small fishes that produces inviscid ovum and microviscosity ovum.
The present invention is applicable to the circular and oval circular hatching channal that the chinese carp breeding is used, and existing circuit capable of using carries out the loach breeding.
The present invention adopts a kind ofly can to place the circular hatching channal loach large cage of laying eggs just; This net cage can make loach when artificial propagation; Promote the sexual maturity, lay eggs, hatch all in same waters---carry out in the circular hatching channal; This modes of reproduction has been simplified operation link greatly, has improved the loach reproductive efficiency significantly.
What the present invention used is a kind of large cage that is placed in the circular hatching channal, and the close loach behind the injection estrualization agent lays eggs therein, and fertilized egg is dropped from the bottom of large cage; Get into circular hatching channal; Directly get into the hatching link, the loach that does not lay eggs in the net cage is proceeded to lay eggs, and makes to lay eggs, hatch and neglect neither.
The external diameter of large cage is slightly less than the circular hatching channal internal diameter, makes large cage almost be close to circular hatching channal.This net cage is as after injecting estrualization agent, and mating, the net cage of laying eggs of male and female parent loach are shaken net cage after breeding finishes, and the part of leaking down still adheres to the loach fertilized egg in the net cage.
Large cage adopts cross-arm formula (utilizing net cage cross bar 2 cross-arms on the circular hatching channal) or brace type fixedly moulding of mode such as (utilizing net cage foot support 5 to stand on the circular hatching channal bottom surface).
The headline of large cage is concordant with the circuit upper surface, adopts the method for regulating the circular hatching channal overflow pipe to control the circuit water surface elevation, keeps net cage to net sheet all around and exceeds the water surface 10-15cm in the circuit, prevents that loach scurries out in the case; Circuit large cage bottom exceeds circuit bottom surface 20-30cm.Let the fertilized egg of landing directly get into the flowing water hatching stage.
The circuit large cage is a kind of folding net cage, is easy to folding packing up before and after using, and is convenient in circular hatching channal, place and take out.Being convenient to collection deposits and carries.
The circuit large cage is a kind of opened type net cage, is convenient to observe and operation.
The circuit large cage can be a large cage just in time piling whole circular hatching channal after the stretching, and what just in whole circular hatching channal, place is a net cage.
The circuit large cage also can be made up of a plurality of collapsible net cages, that is to say in a circular hatching channal, to place several large cages, and the width of large cage is consistent with the internal diameter of circuit, can just be placed in the circuit with large cage and be advisable.Through the lanyard moulding, or a large cage self is through fixedly moulding of material such as bamboo poles between the large cage, and the single large cage in the circuit is unsuitable too small, and length should be more than 2m, so that the laying eggs and the interior current of case unobstructed of loach.
Several rectangle small-sized net cages of cross-arm in the large cage, small-sized net cage net chip architecture and large cage are similar, are mounted in the large cage, and small-sized net cage is 20-25cm apart from large cage bottom, and small-sized net cage also is a kind of opened type net cage, the loach of penetrating estrualization agent to be injected such as is used to place.Loach in the small-sized net cage is through other female or male loach of unicity of putting into after the selection, is the interim net cage of placing of close loach of estrualization agent to be injected such as to let.Small-sized net cage is provided with remarkable mark, indicates the sex of loach, when being convenient to inject estrualization agent, takes fast, can not obscure.Behind the parent loach injection estrualization agent, small-sized net cage is withdrawn from from large cage.
Other loach of unicity in the small-sized net cage is carried out the special messenger and injects estrualization agent, and will inject the loach behind the estrualization agent, directly puts into the large cage of small-sized net cage outside, has reduced the carrying operation, thereby has accelerated injection speed greatly.
Large and small net cage material all uses the soft high strength net of no tubercle sheet, and like polyamide fibre or polythene net sheet, mesh is suitably big, generally about 0.5cm, so that flowing of water and dropping of fertilized egg are as the criterion but must can not get out with close loach.
Large and small net cage must soak more than 7-10 days in water before use continuously, prevents close loach scratch.
Circular hatching channal adopts the circular or oval circular hatching channal of chinese carp breeding, regulates the water inlet flow velocity of circuit bottom, has just been dashed by the flowing water of bottom, road with the loach ovum in the circuit and has been advisable, and the loach ovum is evenly distributed, and guarantees the oxygen supply in the incubating oosperm process.
A kind of loach circuit net cage breeding method, compared with prior art, the present invention has following advantage:
1. see through mesh immediately after this method parent loach lays eggs and fall into circuit, can effectively prevent the eat generation of fish-egg phenomenon of close loach, farthest guaranteed the quantity of loach ovum, the loach ovum gets into the hatching stage immediately.
2. this method can in time shift out circular hatching channal parent loach with the close loach that lays eggs after finishing, and the loach ovum gets into the hatching stage comprehensively, has saved transport process, greatly reduces labour intensity, has improved operating efficiency.
3. because the present invention adopts the hatching of circular hatching channal flowing water, can increase substantially the fertilized egg hatching rate.
4. the present invention adopts is mounted on the small-sized net cage in the circuit large cage; The close loach to be injected that is arranged so that to be injected such as be used to place; The loach of injection estrualization agent front and back is in the same water body, has reduced the stress reaction that transhipment brings, also be convenient to the injection operation of taking a sample simultaneously.
5. circuit water body dissolved oxygen amount is high, and environment is suitable, because the circular hatching channal stimulation by running water transforms smoothly the loach sexual gland, lays eggs synchronously, and that can guarantee that close loach lays eggs carries out smoothly.
6. net cage of the present invention can continue to use, and large cage can fold, and is convenient to put into circuit, takes out and deposit from circuit, and is easy to use, has a good application prospect.
Description of drawings
Accompanying drawing 1 is the structural representation (mesh does not draw) of the whole circuit large cage of the present invention.Wherein: 1. circuit large cage; 2. support rail on the large cage; 3. large cage side supporting bracket; 4. supporting bracket at the bottom of the large cage; 5. net cage pin supporting bracket.
Accompanying drawing 3 is the cross-sectional view (showing the large cage bracing frame) of brace type circuit large cage of the present invention.Wherein: 2. support rail on the large cage; 3. large cage side supporting bracket; 4. supporting bracket at the bottom of the large cage; 5. net cage pin supporting bracket.
Embodiment
Below in conjunction with embodiment the present invention is further described, but protection scope of the present invention is not limited thereto:
Embodiment one:
Collapsible circuit large cage is placed in the circular hatching channal, and two ends are fixed, and form a whole large cage, small-sized net cage on large cage is put on the shelf.
Water in the circular hatching channal added to subscribes height, with etc. estrualization agent to be injected loach the male and female sex separately, the loach of only putting into a kind of sex in the small-sized net cage, and marked.
Dosage is injected the loach that is positioned in the small-sized net cage according to the rules, notices that the dosage of male and female loach is different, and the loach of injecting estrualization agent is put into the circuit large cage of small-sized net cage outside, it is oestrused in large cage lay eggs.
After having injected estrualization agent, small-sized net cage is shifted out from the circuit large cage, let close loach in large cage, oestrus and lay eggs.
Lay eggs after the end, large cage is shifted out from circular hatching channal, remove the close loach that has produced ovum simultaneously, get into the loach ovum flowing water hatching stage.
Put large and small net cage in order, prepare next group and continue to use, or preserve.
Above facility is tested and is used in the scientific base of Anhui Science and Technology College; Facts have proved; Adopt after this facility, close loach survival rate in postpartum reaches more than 95%, and the female parent population unit of loach output of seedling has improved 220% than simple fish nest breeding hatching; Simplified control, labour intensity reduces significantly.
Embodiment two:
Collapsible circuit large cage of segmented or fixed circuit large cage are placed in the circular hatching channal fixedly moulding, small-sized net cage on large cage is put on the shelf.
Step with reference to 0034-0038 is operated.
Claims (10)
1. a loach circuit net cage breeding method is characterized in that carrying out mate and oviposit in the large cage of loach in circular hatching channal, and the mesh that fertilized egg sees through large cage falls into circular hatching channal, directly carries out the flowing water hatching, hatches until the loach seedling.The interior cover of large cage is put several to small-sized net cage, is used to the unisexuality parent loach that carries out the male and female separation of estrualization agents to be injected such as placing.Close loach behind the injection estrualization agent is put into large cage, after injection finishes, withdraw from small-sized net cage.The parent loach is withdrawn from large cage after laying eggs and finishing, and withdraws from close loach simultaneously, and fertilized egg is carried out the flowing water hatching.
2. loach circuit net cage breeding method according to claim 1; It is characterized in that; The width that the used large cage of loach breeding is set in circular hatching channal is slightly less than the circuit internal diameter, makes large cage can just put into circuit, has only very little slit between net cage wall and the circuit.
3. loach circuit net cage breeding method according to claim 1 is characterized in that, it both can be an annular net cage that the used large cage of loach breeding is set in circular hatching channal, also can be made up of a plurality of independent net cages.
4. loach circuit net cage breeding method according to claim 1; It is characterized in that; The used large cage of loach breeding is set in circular hatching channal, and integral ring-shaped large cage is the folding net cage, the single large cage of split both can be folding also can be fixed.
5. loach circuit net cage breeding method according to claim 1; It is characterized in that; The used large cage large cage of loach breeding is set in circular hatching channal adopts fixedly moulding of mode such as cross-arm formula or brace type; The headline of large cage is concordant with the circuit upper surface, adopts the method for flood level height control, keeps large cage to net sheet all around and exceeds the water surface 10-15cm in the circuit; Circuit large cage bottom exceeds circuit bottom surface 20-30cm.
6. loach circuit net cage breeding method according to claim 1 is characterized in that, the used large cage of loach breeding is set is to be used to inject the place that the close loach behind the estrualization agent carries out mating, lays eggs in circular hatching channal.
7. loach circuit net cage breeding method according to claim 1; It is characterized in that; It is a kind of opened type net cage that the used large cage of loach breeding is set in circular hatching channal, and mesh is suitably big, generally about 0.5cm; So that flowing of water and dropping of fertilized egg, the while can not get out with close loach and be as the criterion.
8. loach circuit net cage breeding method according to claim 1; It is characterized in that; It is the rectangle opened type net cage that adopts the cross-arm formula to put that the small-sized net cage that cover is put in the used large cage of loach breeding is set in circular hatching channal; The same large cage of small-sized net cage mesh and material, the small-sized net cage bottom surface is 20-25cm apart from the large cage bottom.
9. loach circuit net cage breeding method according to claim 1 is characterized in that, regulates the flow velocity of circuit bottom water inlet, and the loach ovum can just be dashed by the current of circuit, lets the loach ovum evenly distribute.
10. the present invention can be used for the breeding that all produce the small fishes of inviscid ovum and microviscosity ovum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102446615A CN102415344A (en) | 2011-08-25 | 2011-08-25 | Misgurnus anguillcaudatus loop net cage propagation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102446615A CN102415344A (en) | 2011-08-25 | 2011-08-25 | Misgurnus anguillcaudatus loop net cage propagation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102415344A true CN102415344A (en) | 2012-04-18 |
Family
ID=45940185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102446615A Pending CN102415344A (en) | 2011-08-25 | 2011-08-25 | Misgurnus anguillcaudatus loop net cage propagation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102415344A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599091A (en) * | 2012-03-26 | 2012-07-25 | 浙江海洋学院 | Hybrid propagation method and fertilized ovum hatching device for loach |
| CN102763614A (en) * | 2012-07-02 | 2012-11-07 | 董在好 | Method for culturing mud fish by using net cage |
| CN117397612A (en) * | 2023-10-19 | 2024-01-16 | 珠江水资源保护科学研究所 | Bionic artificial propagation method for Tang fish |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401224A (en) * | 2002-09-23 | 2003-03-12 | 盘山县陈家乡水产技术推广站 | Technique for breeding loach fry |
-
2011
- 2011-08-25 CN CN2011102446615A patent/CN102415344A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401224A (en) * | 2002-09-23 | 2003-03-12 | 盘山县陈家乡水产技术推广站 | Technique for breeding loach fry |
Non-Patent Citations (4)
| Title |
|---|
| 孙守旗 等: "泥鳅苗种扩繁技术", 《水产养殖》 * |
| 张家波: "泥鳅孵化技术", 《农村实用技术与信息》 * |
| 徐亚超: "泥鳅的人工繁殖和苗种培育技术", 《科学养鱼》 * |
| 殷彦波 等: "泥鳅的人工繁殖及苗种培育技术", 《河南水产》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599091A (en) * | 2012-03-26 | 2012-07-25 | 浙江海洋学院 | Hybrid propagation method and fertilized ovum hatching device for loach |
| CN102763614A (en) * | 2012-07-02 | 2012-11-07 | 董在好 | Method for culturing mud fish by using net cage |
| CN117397612A (en) * | 2023-10-19 | 2024-01-16 | 珠江水资源保护科学研究所 | Bionic artificial propagation method for Tang fish |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102379256A (en) | Ring-duct net cage for breeding of oriental weatherfish | |
| CN109090004A (en) | A kind of block type Ecology pond breeding and seedling device and method | |
| CN103109767A (en) | Loach fish fry artificial cultivation method | |
| CN103931525B (en) | The artificial propagation of the naked skin-carp meat in Xinjiang and fry rearing method | |
| CN105052782B (en) | The artificial fecundation method of Xichang Triplophysa | |
| CN104221952B (en) | A kind of Chalcalbumus chalcoides aralensis artificial fecundation method | |
| CN104642212A (en) | Artificial breeding method for onychostoma simus | |
| CN101642067B (en) | Method for artificially hastening parturition of American reeves shads, inseminating and hatching germ cells | |
| CN104170778A (en) | Large-scale common sucker breeding method capable of controlling temperature of circulating water | |
| CN103444610A (en) | Artificial propagation method for acrossocheilus yunnanensis | |
| CN107646763A (en) | A kind of macula lutea basket fish artificial fecundation method | |
| CN104221958A (en) | Artificial spawning method for coreius guichenoti | |
| CN104041457B (en) | A kind of Qinling Mountains fine-scaled graphite artificial fecundation method | |
| CN105360028A (en) | Artificial breeding technology for Oriental loaches | |
| CN102524128A (en) | Artificial reproduction method for Pseudobagras ussuriensis | |
| CN104396813A (en) | Gymnocypris przewalskii full artificial breeding method | |
| CN104255608A (en) | Artificial spawning method for thick-lipped hemibarbus labeo | |
| CN102415344A (en) | Misgurnus anguillcaudatus loop net cage propagation method | |
| CN103651213A (en) | Artificial fish breeding method | |
| CN103283644B (en) | Method for increasing success rate of creating northern pike full-sib families | |
| CN1751666A (en) | Method for artificial breeding mudskipper | |
| CN101965816B (en) | Burbot full-artificial ecological control natural breeding technology | |
| CN104082200A (en) | Artificial spawning induction method for misgurnus anguillicaudatus | |
| CN104094878A (en) | Method for artificially hatching loaches | |
| CN103081828B (en) | Method for artificially propagating parabramis pekinensis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |