CN104719224A - Natural spawning and hatching dual-function equipment and artificial mass propagation method for erythroculter ilishaeformis - Google Patents
Natural spawning and hatching dual-function equipment and artificial mass propagation method for erythroculter ilishaeformis Download PDFInfo
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- 241001122122 Chanodichthys ilishaeformis Species 0.000 title claims abstract description 79
- 230000012447 hatching Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 238000012384 transportation and delivery Methods 0.000 claims abstract description 14
- 238000006213 oxygenation reaction Methods 0.000 claims description 25
- 239000011148 porous material Substances 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000009395 breeding Methods 0.000 claims description 10
- 230000001488 breeding effect Effects 0.000 claims description 10
- 241000252233 Cyprinus carpio Species 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 241000209094 Oryza Species 0.000 claims description 6
- 235000007164 Oryza sativa Nutrition 0.000 claims description 6
- 235000009566 rice Nutrition 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000032696 parturition Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000037396 body weight Effects 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 3
- 241000251468 Actinopterygii Species 0.000 abstract description 26
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005273 aeration Methods 0.000 abstract 1
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 235000013601 eggs Nutrition 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 5
- 241000703769 Culter Species 0.000 description 4
- 102000002322 Egg Proteins Human genes 0.000 description 4
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- 241000196324 Embryophyta Species 0.000 description 2
- 241000442132 Lactarius lactarius Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000012173 estrus Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000252210 Cyprinidae Species 0.000 description 1
- 241000252206 Cypriniformes Species 0.000 description 1
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- 241000252067 Megalops atlanticus Species 0.000 description 1
- 241000543821 Oestrus Species 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
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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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses natural spawning and hatching dual-function equipment and an artificial mass propagation method for erythroculter ilishaeformis. The artificial mass propagation method is characterized by comprising steps of arranging four large domestic fish spawning ponds, laying microporous aeration pipelines at pond bottoms of the spawning ponds, sequentially arranging support frames, meshes and table nets on the inner walls attached to the spawning ponds, forming water inlet pipe orifices in side walls and forming water outlet and fish fry outlet pipe orifices in the pond bottoms; leading the water outlet and fish fry outlet pipe orifices out of the ponds via concealed channels and mounting a sleeve elbow on each water outlet and fish fry outlet pipe orifice; allowing vertical plastic pipes for adjusting the water level of the spawning ponds to sleeve the sleeve elbows, or allowing water delivery and fish fry conveying pipelines to sleeve the sleeve elbows. The water delivery and fish fry conveying pipelines are led into circular hatching channels and are used for leading hatched fish fry into the circular hatching channels. The natural spawning and hatching dual-function equipment and the artificial mass propagation method have the advantages that the equipment comprises the four idle large domestic fish spawning ponds and additional components which are assemblies easy to disassemble and assemble, and spawning and hatching of the erythroculter ilishaeformis can be continuously completed by the aid of the equipment; 50-100 groups of parent erythroculter ilishaeformis can be generally subjected to spawning induction in each batch, and the mass propagation quantity in each single procedure can be multiplied by 10 times as compared with existing methods and equipment.
Description
Technical field
The invention belongs to aquaculture field, particularly a kind of erythroculter ilishaeformis natural spawning hatches the method for difunctional equipment and artificial breeding in enormous quantities thereof.
Background technology
Qiao Zui Hong Erythroculter (Erythroculter ilishaeformis), also known as: large whitefish, stick up face, stick up shell, white silk, Qiao Erythroculter etc., classification is subordinate to the fish of Cypriniformes, Cyprinidae, Culter subfamily, red Culter genus.Erythroculter ilishaeformis is carnivorous famous and precious large-scale economic fish, and individual large, growth is fast, and premunition is strong, the pure white delicacy of meat, nutritious, delicious flavour, for top grade in fish, exactly likes Shad fish, eat raw and process all suitable, steamed large whitefish is Chinese famous classic dish, well-known, is well received by consumers.Erythroculter ilishaeformis fry is propagated 2 years artificially and reaches listing specification, wide market.Because erythroculter ilishaeformis wild resource is limited, river,lake and reservior amount of fishing is fewer and feweri, and improving constantly with people's living standard, erythroculter ilishaeformis demand is constantly increased, supply falls short of demand in market, the cultivation accelerating this famous-brand and high-quality kind is promoted, and drive increasing peasant income, market prospects are very good, but because seed lacks, constrain the industrialized development of this famous-brand and high-quality kind, therefore, artificial breeding erythroculter ilishaeformis meaning in enormous quantities is very large.
Erythroculter ilishaeformis is that a kind of wild from numerous property fish, the egg-laying period generally concentrates on first half of the month in the second half of the month in June to July, but also has in advance with time difference or postpone.Under natural environment, after erythroculter ilishaeformis parent population oestruses and lays eggs, fertilized egg just sticks to water plants branches and leaves, chad and swims on the grass blade of the water surface, on stiff mud and grows, ovum microviscosity, in pale yellow grey, ovum footpath 1.0 ~ 1.3mm, fertilized egg meets water just imbibition, when water temperature is in 25 ~ 29 DEG C of amplitudes of fluctuation, approximately only needs 22 hours from fertilization to hatching.The method of current artificial propagation erythroculter ilishaeformis, general employing two kinds of methods, for once producing fry amount at millions of tail, be by injection ocyodinic after parent population put into circuit for four large Chinese carp hatch fish roes, with stimulation by running water, lay eggs in circuit, be fertilized, on the wall that fertilized egg is bonded at circuit and on artificial fish nest, lay eggs after terminating, catch out parent population, fish-egg is hatched in circuit.For small-scale production, be that the parent population of injection ocyodinic is put into the cement pit or net cage that arrange fish nest, stimulate with current, fertilized egg is bonded on fish nest.Caught out by parent population after laying eggs and terminating, fish-egg is sudden and violent gas hatching in net cage.
Major defect in existing method comprises, even if for the production of once producing fry amount and can reach millions of tail, as fertility and the needs of production of large-scale economic fish, this quantity is still less, and existing method hasten parturition after erythroculter ilishaeformis parent population, because individuality is larger, it is more outstanding in narrow and small circular hatching channal mate and oviposit phenomenon of being obstructed, cause spawning rate low, also due to the pool wall finite surface area of circular hatching channal, the fish-egg of microviscosity easily comes off and deposits bottom circuit, causes fertility rate and hatchability low; For small-scale production, general quantity is less, and cost is higher, not at the comparable category of the present invention.For meeting the need of market, lot-sizeization breeding must be relied on and produce.
Summary of the invention
The object of the invention is for erythroculter ilishaeformis manually there is no in breeding in enormous quantities biological control equipment, the spawning rate of parent population, fish-egg fertility rate and hatchability general lower; and fish for after Gunther parent fish spawning and shift out operation and cause fish-egg to lose the technical problem such as serious; a kind of method that erythroculter ilishaeformis natural spawning hatches difunctional equipment and artificial breeding in enormous quantities thereof is proposed; make erythroculter ilishaeformis manually in enormous quantities breeding have suitable equipment and the propagation method in enormous quantities that matches, significantly improve the fertility rate and hatchability of spawning rate that erythroculter ilishaeformis breeds in enormous quantities, fish-egg.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Erythroculter ilishaeformis natural spawning of the present invention hatches difunctional equipment, and its feature is:
Spawning pond (directly can utilize existing four large Chinese carp spawning ponds) is set, micro-pore oxygenation pipeline is equipped with at the bottom of the pond of spawning pond, the inwall attaching described spawning pond is provided with dismountable support frame, be laid with 40 order mesh sheet in the inner side all standing of described support frame, the surface of described mesh sheet of fitting is provided with the platform net that mesh is 5cm; The sidewall of described spawning pond is provided with a water inlet pipe mouth, and the center at the bottom of described spawning pond pond is provided with a water outlet and goes out the fry mouth of pipe, described water outlet and go out the fry mouth of pipe and to be introduced outside pond by secret tunnel and install a set of pipe bend; Described cover pipe bend can be socketed upright plastic tube for regulating spawning pond water level, or socket is introduced into the water delivery of circular hatching channal and defeated fry pipeline, introduces circular hatching channal for the fry that will hatch.
Further, institute's spawning pond is cylindrical, and building materials mostly is cement brick mix structure, internal diameter 7-10 rice, and pool wall is smooth, centroclinal by outer circumference at the bottom of pond, and center is the low 10-15 centimetre in periphery comparatively, the dark 1.5-2 rice in pond.
Further, micro-pore oxygenation pipe diameter is 1.6 centimetres, and each micro-pore oxygenation pipeline is put along chassis, pond ringwise, is separated by 20 centimetres between adjacent cells oxygenation pipeline, and each micro-pore oxygenation pipeline is connected in parallel the air compressor be arranged on outside spawning pond.
Further, described support frame adopts fastener type steel pipe scaffold structure, is formed by connecting by fastener by steel pipe, Height Adjustable in spawning pond of described support frame.
Further, mesh sheet is holistic polyethylene mesh sheet, and its size needs all standing support frame madial wall and bottom; Size and the mesh sheet of platform net are consistent.
Described water inlet pipe mouth diameter is 15 ~ 20cm, described water inlet pipe mouth and spawning pond sidewall tangent line angle are 40 ° ~ 45 °, upper end 40 ~ the 50cm of spawning pond described in the centre distance of described water inlet pipe mouth, the porch of described water inlet pipe mouth is provided with the inlet valve for regulating water inlet flow velocity and flow, to ensure that the current of bath formation are without dead angle, water impact can not injure fish-egg simultaneously.
Further, in described water outlet and go out the block be stamped above the fry mouth of pipe for tackling erythroculter ilishaeformis parent population.
Further, the diameter of described cover pipe bend, described plastic tube and described water delivery and defeated fry pipeline is all 10cm.
The invention also discloses the method that erythroculter ilishaeformis is manually bred in enormous quantities, its feature is: utilize above-mentioned erythroculter ilishaeformis natural spawning to hatch the spawning and hatching that difunctional equipment carries out erythroculter ilishaeformis, comprise the following steps:
Grow according to the selectivity gland of female, male individual 1:1 the erythroculter ilishaeformis parent population reaching the V phase, form one group by 1 tail raun and 1 tail milter;
Artificial induced spawning is carried out to erythroculter ilishaeformis parent population injection mixing ocyodinic, described mixing ocyodinic is made up of LRH-A, DOM and HCG mixing, the dosage injecting described mixing ocyodinic according to body weight per kilogram raun is LRH-A 14mg+DOM 7mg+HCG 600IU, and the dosage of per kilogram milter injection mixing ocyodinic is 1/2 of raun;
The density of 1 group of erythroculter ilishaeformis parent population is put into according to every cubic metre of water body, the erythroculter ilishaeformis parent population of injection mixing ocyodinic is put in spawning pond, ventilated in spawning pond by micro-pore oxygenation pipeline, to ensure that in spawning pond, dissolved oxygen content is not less than 5mg/L, pipe bend socket plastic tube will be overlapped simultaneously, make the upper surface of plastic tube concordant with the upper surface of water body in spawning pond, to utilize the water level in the upper surface height Altitude control spawning pond of plastic tube, from while water inlet pipe mouth is intake to spawning pond from plastic tube water outlet, ensure water body flow in spawning pond;
After erythroculter ilishaeformis parent population natural spawning, fertilized egg sticks to the surface of mesh sheet, by platform net, erythroculter ilishaeformis parent population is taken out, then the socket of cover pipe bend is introduced into the water delivery of circular hatching channal and defeated fry pipeline, continue to keep dissolved oxygen content in spawning pond to be not less than 5mg/L, and continue to intake to spawning pond from water inlet pipe mouth to make water body in spawning pond flow to circular hatching channal, the fry that the incubating oosperm sticking to mesh sheet surface goes out enters circular hatching channal with current, wait to concentrate and count out pond, complete erythroculter ilishaeformis and manually breed in enormous quantities.
Erythroculter ilishaeformis natural spawning of the present invention hatches the method for difunctional equipment and artificial breeding in enormous quantities thereof, is also applicable to the big-and-middle-sized economic fish artificial propagation that other produce viscous roes.
Compared with prior art, the present invention possesses following advantage:
(1) erythroculter ilishaeformis natural spawning of the present invention hatches difunctional equipment is after four large Chinese carp artificial propagations terminate substantially, utilize four idle large Chinese carp spawning ponds, adding portion easy to disassemble and assemble assembly, forms erythroculter ilishaeformis and lays eggs, hatches the equipment that can complete continuously; Use this equipment, generally every batch of erythroculter ilishaeformis parent population 50 ~ 100 groups of can hastening parturition, compare with equipment than existing methods, single large-scaled propugation quantity can improve 10 times;
(2) erythroculter ilishaeformis natural spawning of the present invention is hatched at the bottom of the pond of difunctional equipment and is increased micro-pore oxygenation pipeline, by gas transmission oxygenation outside pond, can meet erythroculter ilishaeformis parent population in pond oestrus lay eggs, fish-egg embryonic development, hatch and the fry that hatches to the needs of dissolved oxygen;
(3) the spawning pond inwall that erythroculter ilishaeformis natural spawning of the present invention hatches difunctional equipment installs the support frame and an overall polyethylene 40 order mesh sheet that easy dress easily unloads, permeability is good, viscous roes can uniform adhesion, reduce fish-egg to scatter and disappear at the bottom of pool wall and sedimentation basin, make fish-egg fertilization rate, egg hatching rate significantly improves;
(4) erythroculter ilishaeformis natural spawning of the present invention is hatched in difunctional equipment the surface being close to 40 order mesh sheet and is laid simple and easy the net that a mesh is 5 centimetres again, so that erythroculter ilishaeformis parent population natural spawning terminates easily to shift out pond, make the incubating oosperm sticked on mesh sheet and pool wall can not be impaired, the fry hatched also can be swum out of freely;
(5) erythroculter ilishaeformis natural spawning of the present invention is hatched water outlet in difunctional equipment and is gone out the cover pipe bend that the fry mouth of pipe connects, upright plastic conduit can be socketed, regulate the water level of spawning pond, after fry hatches, replacing plastic tube is be communicated to the water delivery of circular hatching channal and defeated fry pipeline, the fry being convenient to hatch can enter circular hatching channal with current and continue grow and count out pond, avoids the damage that manual operation causes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the layout schematic diagram of micro-pore oxygenation pipeline of the present invention;
Fig. 3 be water inlet pipe mouth of the present invention schematic diagram is set;
Mark in figure: 1 spawning pond; 2 micro-pore oxygenation pipelines; 3 support frames; 4 mesh sheet; 5 nets; 6 water inlet pipe mouths; 61 inlet valves; 7 water outlets and go out the fry mouth of pipe; 71 blocks; 8 cover pipe bends; 9 plastic tubes; 10 water deliverys and defeated fry pipeline; 11 circular hatching channals; 12 air compressors.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, the structure that the present embodiment erythroculter ilishaeformis natural spawning hatches difunctional equipment is: utilize existing four large Chinese carp spawning ponds 1, micro-pore oxygenation pipeline 2 is equipped with at the bottom of the pond of spawning pond, the inwall attaching spawning pond is provided with dismountable support frame 3, be laid with 40 order mesh sheet 4 in the inner side all standing of support frame 3, the surface of laminating mesh sheet 4 is provided with the platform net 5 that mesh is 5cm; The sidewall surface thereof of spawning pond 1 is provided with a water inlet pipe mouth 6, and the center at the bottom of spawning pond 1 pond is provided with a water outlet and goes out the fry mouth of pipe 7, water outlet and go out the fry mouth of pipe 7 and to be introduced outside pond by secret tunnel and install a set of pipe bend 8; Cover pipe bend 8 can be socketed upright plastic tube 9 for regulating spawning pond water level, or socket is introduced into water delivery and the fry pipeline 10 of circular hatching channal 11, introduces circular hatching channal 11 for the fry that will hatch.
In concrete enforcement, spawning pond 1 is cylindrical, and building materials mostly is cement brick mix structure, internal diameter 7-10 rice, and pool wall is smooth, centroclinal by outer circumference at the bottom of pond, and center is the low 10-15 centimetre in periphery comparatively, the dark 1.5-2 rice in spawning pond pond.
As shown in Figure 2, the diameter of micro-pore oxygenation pipeline 2 is 1.6 centimetres, and each micro-pore oxygenation pipeline is put along chassis, pond ringwise, is separated by 20 centimetres between adjacent cells oxygenation pipeline, each micro-pore oxygenation pipeline is connected in parallel the air compressor 12 be arranged on outside spawning pond 1, for oxygenation in spawning pond.
Described support frame 3 is formed by connecting by fastener by steel pipe, Height Adjustable in spawning pond 1 of support frame 3.Inside support frame, be close to holistic polyethylene mesh sheet, its size needs all standing support frame madial wall and bottom, is convenient to viscous roes attachment; Be close to mesh sheet surface and lay a simple and easy net 5 again, size and the mesh sheet of platform net are consistent, for shifting out parent population after erythroculter ilishaeformis Gunther parent fish spawning terminates;
As shown in Figure 3, water inlet pipe mouth 6 diameter is 15 ~ 20cm, water inlet pipe mouth and spawning pond 1 sidewall tangent line angle are 40 ° ~ 45 °, upper surface 40 ~ the 50cm of spawning pond described in the centre distance of described water inlet pipe mouth 6, the porch of water inlet pipe mouth 6 is provided with the inlet valve 61 for regulating water inlet flow velocity and flow, to ensure that the current of bath formation are without dead angle, water impact can not injure fish-egg simultaneously.
In water outlet and go out the block 71 be stamped above the fry mouth of pipe 7 for tackling erythroculter ilishaeformis parent population.
Cover pipe bend 8, plastic tube 9 and described water delivery and defeated fry pipeline 10 diameter are 10cm.Plastic tube 9 is pvc pipe, for regulating the water level of spawning pond during Gunther parent fish spawning; Water delivery and fry pipeline count out pond for making the fry hatched can enter circuit with flowing water.
Utilize above-mentioned erythroculter ilishaeformis natural spawning to hatch difunctional equipment to carry out the method that erythroculter ilishaeformis manually breeds in enormous quantities and comprise the following steps:
Grow according to the selectivity gland of female, male individual 1:1 the erythroculter ilishaeformis parent population reaching the V phase, form one group by 1 tail raun and 1 tail milter;
Artificial induced spawning is carried out to erythroculter ilishaeformis parent population injection mixing ocyodinic, mixing ocyodinic is made up of LRH-A, DOM and HCG mixing, injecting described mixing dosage of hastening parturition according to body weight per kilogram raun is LRH-A 14mg+DOM 7mg+HCG600IU, and milter injection volume is 1/2 of raun;
The density of 1 group of erythroculter ilishaeformis parent population is put into according to every cubic metre of water body, the erythroculter ilishaeformis parent population of injection mixing ocyodinic is put in spawning pond, ventilated in spawning pond by micro-pore oxygenation pipeline, to ensure that in spawning pond, dissolved oxygen content is not less than 5mg/L, cover pipe bend 8 is socketed plastic tube 9 simultaneously, make the upper surface of plastic tube 9 concordant with the upper surface of water body in spawning pond, to utilize the water level in the upper surface Altitude control spawning pond 1 of plastic tube 9, from while water inlet pipe mouth 6 is intake to spawning pond from plastic tube 9 water outlet, ensure water body flow in spawning pond;
After erythroculter ilishaeformis parent population natural spawning, fertilized egg sticks to the surface of mesh sheet 4, by platform net 5, erythroculter ilishaeformis parent population is taken out, stick to incubating oosperm in mesh sheet by the loss of transfer parent population and fish nest, particular avoid fertilized egg and to scatter and disappear the loss being difficult at the bottom of pool wall and pond hatch; Then the socket of cover pipe bend 8 is introduced into the water delivery of circular hatching channal 11 and defeated fry pipeline 10, continue to keep dissolved oxygen content in spawning pond to be not less than 5mg/L, and continue to intake to spawning pond from water inlet pipe mouth 6 to make water body in spawning pond flow to circular hatching channal, the fertilized egg sticking to mesh sheet surface carries out embryonic development, hatching in micro-pore oxygenation and clean flowing water environment, the fry hatched enters circular hatching channal with current, wait to concentrate and count out pond, complete erythroculter ilishaeformis and manually breed in enormous quantities.
The present invention is directed to erythroculter ilishaeformis manually in enormous quantities breeding there is no special suitable equipment, and the disposable quantity of laying eggs of erythroculter ilishaeformis is many, easy heap integrated package, ovum viscosity is not strong, easily to come off deposition from fish nest, cause the incubation rate of ovum low, or fish-egg is moved to the hatching of other equipment, all there is loss and seriously wait technical barrier, by utilizing the existing equipment ingehious design of four large Chinese carp artificial propagations, improve, difunctional, solve the plant issue that erythroculter ilishaeformis is manually bred in enormous quantities, this equipment is utilized manually to breed erythroculter ilishaeformis in enormous quantities, significantly improve the condition of parent population natural spawning, fish-egg uniform adhesion in mesh sheet without the need to shifting out hatching, embryonic development is continued in micro-pore oxygenation and clean flowing water environment, hatching, the fry hatched enters circular hatching channal with flowing water and concentrates out pond, substantially increase spawning rate, fertilization rate, incubation rate and survival rate of fish fry, utilize erythroculter ilishaeformis natural spawning to hatch difunctional equipment and artificial propagation method in enormous quantities thereof, the object of artificial breeding erythroculter ilishaeformis in enormous quantities can be realized, and the production capacity benefit of erythroculter ilishaeformis artificial propagation can be significantly improved.Difunctional Apparatus for () and method therefor of the present invention is also applicable to the big-and-middle-sized economic fish artificial propagation that other produce viscous roes.
The above is only the preferred embodiment of the present invention; it may be noted that: for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. an erythroculter ilishaeformis natural spawning hatches difunctional equipment, it is characterized in that: four large Chinese carp spawning ponds (1) are set, micro-pore oxygenation pipeline (2) is equipped with at the bottom of the pond of described spawning pond, the inwall attaching described spawning pond is provided with dismountable support frame (3), be laid with 40 order mesh sheet (4) in the inner side all standing of described support frame (3), the surface of described mesh sheet of fitting (4) is provided with the platform net (5) that mesh is 5cm; The sidewall of described spawning pond (1) is provided with a water inlet pipe mouth (6), center at the bottom of described spawning pond (1) pond is provided with a water outlet and goes out the fry mouth of pipe (7), described water outlet and go out the fry mouth of pipe (7) and to be introduced outside pond by secret tunnel and install a set of pipe bend (8); Described cover pipe bend (8) can be socketed upright plastic tube (9) for regulating spawning pond water level, or socket is introduced into water delivery and the defeated fry pipeline (10) of circular hatching channal (11), introduce circular hatching channal (11) for the fry that will hatch.
2. erythroculter ilishaeformis natural spawning according to claim 1 hatches difunctional equipment, it is characterized in that: described spawning pond (1) for cylindrical, internal diameter 7-10 rice, pool wall is smooth, centroclinal by outer circumference at the bottom of pond, center is the low 10-15 centimetre in periphery comparatively, the dark 1.5-2 rice in spawning pond pond.
3. erythroculter ilishaeformis natural spawning according to claim 1 hatches difunctional equipment, it is characterized in that: the diameter of described micro-pore oxygenation pipeline (2) is 1.6 centimetres, each micro-pore oxygenation pipeline is put along chassis, pond ringwise, be separated by between adjacent cells oxygenation pipeline 20 centimetres, each micro-pore oxygenation pipeline is connected in parallel and is arranged on spawning pond (1) air compressor outward (12) with one.
4. erythroculter ilishaeformis natural spawning according to claim 1 hatches difunctional equipment, it is characterized in that: described support frame (3) is formed by connecting by fastener by steel pipe, Height Adjustable in spawning pond (1) of described support frame (3).
5. erythroculter ilishaeformis natural spawning according to claim 1 hatches difunctional equipment, it is characterized in that: described water inlet pipe mouth (6) diameter is 15 ~ 20cm, described water inlet pipe mouth and spawning pond (1) sidewall tangent line angle are 40 ° ~ 45 °, upper surface 40 ~ the 50cm of spawning pond described in the centre distance of described water inlet pipe mouth (6), the porch of described water inlet pipe mouth (6) is provided with the inlet valve (61) for regulating water inlet flow velocity and flow.
6. erythroculter ilishaeformis natural spawning according to claim 1 hatches difunctional equipment, it is characterized in that: be stamped the block (71) for tackling erythroculter ilishaeformis parent population in described water outlet and the top that goes out the fry mouth of pipe (7).
7. erythroculter ilishaeformis natural spawning according to claim 1 hatches difunctional equipment, it is characterized in that: described cover pipe bend (8), described plastic tube (9) and described water delivery and defeated fry pipeline (10) diameter are 10cm.
8. an erythroculter ilishaeformis method of manually breeding in enormous quantities, is characterized in that: utilize erythroculter ilishaeformis natural spawning described in any one in claim 1 ~ 7 to hatch the spawning and hatching that difunctional equipment carries out erythroculter ilishaeformis, comprise the following steps:
Grow according to the selectivity gland of female, male individual 1:1 the erythroculter ilishaeformis parent population reaching the V phase, form one group by 1 tail raun and 1 tail milter;
Artificial induced spawning is carried out to erythroculter ilishaeformis parent population injection mixing ocyodinic, described mixing ocyodinic is made up of LRH-A, DOM and HCG mixing, injecting described mixing dosage of hastening parturition according to body weight per kilogram raun is LRH-A 14mg+DOM 7mg+HCG600IU, and milter injection volume is 1/2 of raun;
The density of 1 group of erythroculter ilishaeformis parent population is put into according to every cubic metre of water body, the erythroculter ilishaeformis parent population of injection mixing ocyodinic is put in spawning pond, ventilated in spawning pond by micro-pore oxygenation pipeline, to ensure that in spawning pond, dissolved oxygen content is not less than 5mg/L, pipe bend socket plastic tube will be overlapped simultaneously, make the upper surface of plastic tube concordant with the upper surface of water body in spawning pond, to utilize the water level in the upper surface Altitude control spawning pond of plastic tube, from while water inlet pipe mouth is intake to spawning pond from plastic tube water outlet, ensure water body flow in spawning pond;
After erythroculter ilishaeformis parent population natural spawning, fertilized egg sticks to the surface of mesh sheet, by platform net, erythroculter ilishaeformis parent population is taken out, then cover pipe bend is socketed described water delivery and defeated fry pipeline, continue to keep dissolved oxygen content in spawning pond to be not less than 5mg/L, and continue to intake to spawning pond from water inlet pipe mouth to make water body in spawning pond flow to circular hatching channal, the fry that the fertilized egg sticking to mesh sheet surface is hatched enters circular hatching channal with current, wait to concentrate and count out pond, complete erythroculter ilishaeformis and manually breed in enormous quantities.
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