CN103621441A - Freshwater fish demersal egg incubation device and method - Google Patents
Freshwater fish demersal egg incubation device and method Download PDFInfo
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- CN103621441A CN103621441A CN201310615053.XA CN201310615053A CN103621441A CN 103621441 A CN103621441 A CN 103621441A CN 201310615053 A CN201310615053 A CN 201310615053A CN 103621441 A CN103621441 A CN 103621441A
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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
Abstract
The invention relates to a freshwater fish demersal egg incubation device and method. The freshwater fish demersal egg incubation device and method are suitable for incubation of fish demersal eggs or adhesive eggs processed in a debonding mode. The device comprises a container, wherein the bottom of the container is in a U shape, one side portion of a container inner cavity is provided with a water injection pipe facing the position below the corresponding side portion of the container, an opening above the other side portion of the container inner cavity is correspondingly provided with an arc turn portion, and the arc turn portion is turned towards one side of the water injection pipe from bottom to top so that injected water flow form annular flow. The method comprises the steps that debonded germ cells are slowly placed in the container filled with water and sink slowly; a water injection pipe valve is opened and is adjusted in a fine mode according to the proportion of the germ cells, the water flow is controlled so that the water flow can rotate in the perpendicular plane in the container to drive the germ cells to rotate, and dead cells and light impurities are removed under the action of centrifugal force; the water flow is kept being injected, and a net bag is cleared when fries are about to be incubated; the fries are collected after being incubated. According to the freshwater fish demersal egg incubation device and method, the germ cells can be prevented from being accumulated on local parts, the dead cells and egg shells are separated from other impurities, and an incubation effect is good.
Description
Technical field
The present invention relates to a kind of fresh-water fishes demersal egg hatching apparatus and hatching m, be applicable to the adhesive egg hatching after fresh-water fishes demersal egg or de-glutinous processing.
Background technology
China is traditional aquaculture big country, and every year, to being in great demand of fry, artificial incubation workload is larger.For a long time, China's fry hatching is continued to use legacy equipment always, as hatching pail, incubation tank and circular hatching channal etc., main by bottom water flow impact, by upwards rolling of fertilized egg, both can increase dissolved oxygen, play again the object that prevents the necrosis of fertilized egg accumulation anoxic, substantially can meet need of production, but also there are many weak points in above-mentioned several incubation equipment, as need supporting water pump while building, the auxiliary devices such as water tower, take larger soil, fund input is large, hatching process need to change water in a large number, affected by pollution of waterhead, and need to manually scrub filter screen, workload is large, and careless slightly, the water capacity in incubator is easily overflowed, cause or the loss of fish-egg, whole hatching process current regulate management and fry hatching to observe comparatively to bother etc.
Summary of the invention
The object of the present invention is to provide a kind of fresh-water fishes demersal egg hatching apparatus and hatching m, not only can avoid fertilized egg local appearance to pile up, and the ovum of can checkmating, chorion are separated with other impurity, have greatly improved the incubation rate of fresh-water fishes demersal eggs, reduce workload, hatching effect is good.
Technical program of the present invention lies in: a kind of fresh-water fishes demersal egg hatching apparatus, comprise that bottom is U-shaped container, it is characterized in that, described container intracavity one flanking part is provided with the water injection pipe towards below, the corresponding flanking part of container, and the opening part correspondence of another side top of described container intracavity is provided with to turn from bottom to top to the arc of water injection pipe one side and turns portion so that the current that inject form circulation.
Further, described container upper end is positioned at the corresponding side of water injection pipe and offers spilling water notch, on described spilling water notch, is connected with overflow groove, and described overflow groove delivery port below is provided with collecting pit, described collecting pit top is provided with the string bag, and described collecting pit on one side upper lateral part is communicated with tubulose spilling water passage.
Further, described water injection pipe is comprised of vertical tube connector and longitudinal isocon, and water injection pipe is down T-shape, and described tube connector upper end is provided with control water valve, offers a discharge water hole on described isocon.
Further, the both ends of described isocon sealings, offers several apopores under being tilted on isocon sidewall.
Further, described apopore center line is horizontal by 30 ° ~ 70 ° angles, and described container is transparent vessel.
Further, the described string bag is 60 mesh sieve tulle pockets, and described collecting pit is that detachability is connected with the string bag.
A hatching m for fresh-water fishes demersal egg, comprises hatching apparatus as claimed in claim 3, it is characterized in that, comprises the following steps:
The first step: the fertilized egg after de-sticking is slowly put into the container of filling water, it is slowly sunk;
Second step: open water injection pipe valve, and according to fertilized egg proportion fine tuning valve, control current, make to rotate in the vertical vertical plane of current in container, drive fertilized egg rotation simultaneously, reject dead ovum under centrifugal action and compared with light impurity;
The 3rd step: keep the injection of current, clear up the string bag when spray seedling is about to hatch;
The 4th step: after spray seedling is hatched, collect spray seedling.
Further, the described water level that keeps when the 3rd step in collecting pit makes its submergence string bag bottom.
Further, after the 4th step, according to hatching density, regularly the spray seedling in the string bag is moved into and cultivates pond, carry out the larval rearing of next stage.
Compared with prior art, the present invention has the following advantages: (1) this invention is simple in structure, and cost is low, and floor space is little; (2) this invention utilizes flowing water principle of dynamics, allow the fertilized egg in incubator be suspended in equably in water body, avoid fertilized egg part to occur packing phenomenon, simultaneously automatically that the dead ovum in hatching apparatus, chorion is separated with other impurity in hatching early stage, reduction manual operation intensity; (3) after fry membrane, the eliminating impurities of collecting in basket is clean, make it become fry and collect basket, in incubator, the fry of flat trip is separated gradually, enters downstream and collects basket, then regularly by collecting fry in basket, is carried to and cultivates pond and further cultivate; (4) glass material, is convenient to see through at whole hatching process the Real Time Observation that glass carries out, and follows the tracks of development of fertilized ova situation; (5) use and manage conveniently, labour intensity is low, for breeding of scale seed breeding and famous-brand and high-quality aquatic product sprout provides a kind of easy, efficient and economical hatch fish roe method and device.
accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the structural representation of water injection pipe in apparatus of the present invention;
Fig. 3 is the A district enlarged drawing of Fig. 1 of the present invention;
In figure: 1-container 11-arc turns the 12-of portion spilling water notch 13-overflow groove 2-water injection pipe 21-tube connector 22-isocon 221-apopore 3-collecting pit 31-spilling water passage 4-string bag 5-and controls the water valve 6-dead ovum of angle 8-and chorion 9-fertilized egg.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the present invention is not limited to this.
With reference to figure 1, Fig. 2 and Fig. 3, a kind of fresh-water fishes demersal egg incubator, comprises that bottom is U-shaped container 1, in order better to observe the situation in container, described container adopts transparent material to make, to see through the developmental state that transparent vessel is observed fry fertilized egg 9.For lasting flowing water is provided to hatching apparatus, guarantee that the inner water body of hatching apparatus has enough dissolved oxygens simultaneously, described container intracavity one flanking part is provided with the water injection pipe 2 towards below, the corresponding flanking part of container.In order to make to inject the water flow rotary in container, the opening part correspondence of another side top of described container intracavity is provided with to turn from bottom to top to the arc of water injection pipe one side and turns portion 11 so that the current that inject form circulation, produce centrifugal force, to drive the fertilized egg of container bottom that it is suspended in water body uniformly.
Thereby for flowing out, the water that makes to inject takes dead ovum and chorion 8 out of, described container upper end is positioned at the corresponding side opening part of water injection pipe and is provided with spilling water notch 12, on described spilling water notch, be connected with overflow groove 13, in hatching process, fertilized egg is subject to the effect of centrifugal force, downright bad fertilized egg or lighter impurity take the lead in flowing out from overflow groove with current, have played the ovum effect automatic separated with dead ovum.In order to collect bad ovum, impurity and the later stage hatching of flowing out from overflow groove, process the spray seedling of coming, described overflow groove delivery port below is provided with collecting pit 3, body top, described collecting pit pond is provided with the string bag 4, the string bag is that detachability is connected with collecting pit, the described string bag adopts 60 mesh sieve tulle pockets, convenient dead ovum and the spray seedling collected.In order to make the current in collecting pit logical, for the water level in true collecting pit remains on 2/3 position, at collecting pit one side 2/3, highly go out to be communicated with tubulose spilling water passage 31 simultaneously.
Above-mentioned water injection pipe is comprised of vertical tube connector 21 and longitudinal isocon 22, and water injection pipe is down T-shape.In order to control discharge and the speed in container, described tube connector upper end is provided with controls water valve 5, the both ends sealing of described isocon, offers several apopores 221 under being tilted on isocon tube wall, described apopore center line is horizontal by 30 ° ~ 70 ° angles 6.
In order better to collect dead ovum, chorion and impurity, prevent that the string bag from stopping up simultaneously, the described string bag adopts 60 mesh sieve tulle pockets, and for the ease of the disassembly, cleaning string bag, described collecting pit pond body is that detachability is connected with the string bag.
A hatching m for fresh-water fishes demersal egg, comprises the following steps:
The first step: the fertilized egg after de-sticking is slowly put into the container of filling water, it is slowly sunk;
Second step: open water injection pipe valve, and according to fertilized egg proportion fine tuning valve, control current, make to rotate in the vertical vertical plane of current in container, drive fertilized egg rotation simultaneously, reject dead ovum under centrifugal action and compared with light impurity;
The 3rd step: keep the injection of current, remove dead ovum, clear up the string bag when spray seedling is about to hatch;
The 4th step: after spray seedling is hatched, collect spray seedling.
Method of work of the present invention and principle thereof: the container of this incubator is placed on workbench, connect water injection pipe, then adjust the relative position of collecting pit and overflow groove, after treating that device is adjusted, open the water valve of water injection pipe upper end, make whole container fill water, then valve-off stops into water, then the fertilized egg after de-sticking is slowly put into the hatching apparatus of filling water, it is slowly sunk;
After fertilized egg is sunk, open water injection pipe valve, and according to fertilized egg proportion fine tuning valve, control current, when current are just right, T-shape tube coordinate the container be U-shaped structure with and the arc of upper shed place one side turn portion, make the current of hatching apparatus inside rotate to form circulation in vertical vertical plane, fertilized egg is rotated in container, under the effect of centrifugal force, bad ovum and lighter impurity can swim in water body top, with current, from overflow groove overflow to collecting pit, the heavier fertilized egg of hatching can slowly sink to container bottom under Action of Gravity Field;
Keep the injection of current, guarantee that the collecting pit Intranet portion of revealing all the details is immersed in water simultaneously, through hatching after a while, when spray seedling is about to hatch, the dead ovum in collecting pit and impurity are removed totally, make it become spray seedling and collect basket;
After spray seedling is hatched, spray seedling flows in the string bag in collecting pit with current; Housing gravity is lighter, under the effect of current centrifugal force, also can flow into the string bag with current;
According to spray seedling hatching density, regularly the spray seedling in the string bag is moved into and cultivates pond, to carry out the larval rearing of next stage.
In the present invention, device mainly comprises the transparent vessel of glass material, this container inner wall corner is made by three arc PVC materials, the pipeline of water injection pipe end is parallel with container bottom, has 12 apopores on pipeline, and it is 45 ° of angles that apopore and level are best angle.Collecting pit pond body is comprised of two parts, the first half is 60 mesh sieve tulle pockets, be used for collecting bad ovum and spray seedling, Lower Half is water storage tank, at water storage tank sidewall 2/3 At The Height, there is a gap, in whole hatching process, all can keep the water level of 2/3 height, guarantee that the collecting net portion of revealing all the details is immersed in water, prevent the spray seedling anoxic hatching, prevent that bad ovum and impurity from sticking on the string bag simultaneously.
The foregoing is only preferred embodiment of the present invention, for the ordinary skill in the art, according to instruction of the present invention, design multi-form the present invention and do not need performing creative labour, all equalization variation, modification, replacement and modification of making according to the present patent application the scope of the claims, all should belong to covering scope of the present invention without departing from the principles and spirit of the present invention.
Claims (9)
1. a fresh-water fishes demersal egg hatching apparatus, comprise that bottom is U-shaped container, it is characterized in that, described container intracavity one flanking part is provided with the water injection pipe towards below, the corresponding flanking part of container, and the opening part correspondence of another side top of described container intracavity is provided with to turn from bottom to top to the arc of water injection pipe one side and turns portion so that the current that inject form circulation.
2. fresh-water fishes demersal egg hatching apparatus according to claim 1, described container upper end is positioned at the corresponding side of water injection pipe and offers spilling water notch, on described spilling water notch, be connected with overflow groove, described overflow groove delivery port below is provided with collecting pit, described collecting pit top is provided with the string bag, and described collecting pit on one side upper lateral part is communicated with tubulose spilling water passage.
3. fresh-water fishes demersal egg hatching apparatus according to claim 2, described water injection pipe is comprised of vertical tube connector and longitudinal isocon, and water injection pipe is down T-shape, and described tube connector upper end is provided with control water valve, offers a discharge water hole on described isocon.
4. fresh-water fishes demersal egg hatching apparatus according to claim 3, the both ends sealing of described isocon, offers several apopores under being tilted on isocon sidewall.
5. fresh-water fishes demersal egg hatching apparatus according to claim 4, described apopore center line is horizontal by 30 ° ~ 70 ° angles, and described container is transparent vessel.
6. fresh-water fishes demersal egg hatching apparatus according to claim 2, the described string bag is 60 mesh sieve tulle pockets, described collecting pit is that detachability is connected with the string bag.
7. a hatching m for fresh-water fishes demersal egg, comprises hatching apparatus as claimed in claim 3, it is characterized in that, comprises the following steps:
The first step: the fertilized egg after de-sticking is slowly put into the container of filling water, it is slowly sunk;
Second step: open water injection pipe valve, and according to fertilized egg proportion fine tuning valve, control current, make to rotate in the vertical vertical plane of current in container, drive fertilized egg rotation simultaneously, reject dead ovum and compared with light impurity under centrifugal action;
The 3rd step: keep the injection of current, clear up the string bag when spray seedling is about to hatch;
The 4th step: after spray seedling is hatched, collect spray seedling.
8. hatching m according to claim 7 describedly keeps water level in collecting pit to make its submergence string bag bottom when the 3rd step.
9. hatching m according to claim 7 according to hatching density, regularly moves into the spray seedling in the string bag to cultivate pond after the 4th step, carries out the larval rearing of next stage.
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| CN201310615053.XA CN103621441B (en) | 2013-11-28 | 2013-11-28 | A kind of freshwater fish demersal egg hatching apparatus and hatching m |
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| CN201310615053.XA CN103621441B (en) | 2013-11-28 | 2013-11-28 | A kind of freshwater fish demersal egg hatching apparatus and hatching m |
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| CN103621441A true CN103621441A (en) | 2014-03-12 |
| CN103621441B CN103621441B (en) | 2016-01-06 |
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Cited By (7)
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| CN104686422A (en) * | 2015-03-16 | 2015-06-10 | 中国水产科学研究院黑龙江水产研究所 | Egg membrane removal filtration device for fish artificial propagation hatching process |
| CN105613395A (en) * | 2015-12-29 | 2016-06-01 | 溧阳市水产技术推广站 | Fresh water fry breeding facility |
| CN106417116A (en) * | 2016-09-08 | 2017-02-22 | 中国水产科学研究院黄海水产研究所 | Artificial incubation equipment for viscid fertilized eggs of fishes |
| CN106577406A (en) * | 2016-12-16 | 2017-04-26 | 福建省淡水水产研究所 | Fish egg automatic viscidity removing device and use method thereof |
| CN108037262A (en) * | 2017-12-29 | 2018-05-15 | 成都智泉世纪科技有限公司 | A kind of water monitor and water dispenser |
| CN108719150A (en) * | 2018-05-29 | 2018-11-02 | 福州大学 | A kind of pneumatic type receipts ovum, hatching, filtering all-in-one machine being suitable for bright and beautiful Medaka |
| CN111357688A (en) * | 2020-03-24 | 2020-07-03 | 浙江省海洋水产养殖研究所 | Fish egg collecting and separating assembly device and collecting method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104686422A (en) * | 2015-03-16 | 2015-06-10 | 中国水产科学研究院黑龙江水产研究所 | Egg membrane removal filtration device for fish artificial propagation hatching process |
| CN104686422B (en) * | 2015-03-16 | 2017-07-07 | 中国水产科学研究院黑龙江水产研究所 | A kind of method that egg membrane is removed in artificial propagation of fish hatching process |
| CN105613395A (en) * | 2015-12-29 | 2016-06-01 | 溧阳市水产技术推广站 | Fresh water fry breeding facility |
| CN106417116A (en) * | 2016-09-08 | 2017-02-22 | 中国水产科学研究院黄海水产研究所 | Artificial incubation equipment for viscid fertilized eggs of fishes |
| CN106417116B (en) * | 2016-09-08 | 2019-05-10 | 中国水产科学研究院黄海水产研究所 | The viscous fertilized ovum artificial incubation equipment of fish |
| CN106577406A (en) * | 2016-12-16 | 2017-04-26 | 福建省淡水水产研究所 | Fish egg automatic viscidity removing device and use method thereof |
| CN106577406B (en) * | 2016-12-16 | 2019-04-16 | 福建省淡水水产研究所 | A kind of fish-egg is automatically de- to stick device and its application method |
| CN108037262A (en) * | 2017-12-29 | 2018-05-15 | 成都智泉世纪科技有限公司 | A kind of water monitor and water dispenser |
| CN108719150A (en) * | 2018-05-29 | 2018-11-02 | 福州大学 | A kind of pneumatic type receipts ovum, hatching, filtering all-in-one machine being suitable for bright and beautiful Medaka |
| CN111357688A (en) * | 2020-03-24 | 2020-07-03 | 浙江省海洋水产养殖研究所 | Fish egg collecting and separating assembly device and collecting method |
| CN111357688B (en) * | 2020-03-24 | 2021-09-28 | 浙江省海洋水产养殖研究所 | Fish egg collecting and separating assembly device and collecting method |
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