CN104798704B - A kind of large-scale artificial hatching method of swamp eel embryonated egg - Google Patents
A kind of large-scale artificial hatching method of swamp eel embryonated egg Download PDFInfo
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- CN104798704B CN104798704B CN201510165609.9A CN201510165609A CN104798704B CN 104798704 B CN104798704 B CN 104798704B CN 201510165609 A CN201510165609 A CN 201510165609A CN 104798704 B CN104798704 B CN 104798704B
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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
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- 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 invention belongs to aquaculture field, and in particular to a kind of large-scale artificial hatching method of swamp eel embryonated egg.Inventive features are, using neural embryo as artificial incubation starting point, application specific hatchery facility and the methods such as lasting oxygenation of dripping, and swamp eel embryonated egg artificial incubation rate is brought up into more than 90%, technical system is provided for swamp eel Ecology propagation in scale.Step is：1) special hatchery facility is built, cistern, hatchery is set gradually by high potential difference and the facility that drips；2) swamp eel embryonated egg is obtained using Ecology propagation method, is gathered when embryonated egg develops neural embryonic period, embryonic phase naturally in foam nest and be transferred to artificial incubation in hatching frame；3) neural embryo is laid in hatching frame, and keeps embryo from water surface 1cm, neural embryonic development is promoted using the oxygenation method that drips；4) continue to stay in after young eel incubation of membrane temporarily to support in hatching frame, food is tamed and dociled by opening, is transferred to after feeding to the long 5cm of body in net cage or other facilities and continues to feed.
Description
Technical field
The invention belongs to technical field of aquaculture, and in particular to a kind of large-scale artificial hatching side of swamp eel embryonated egg
Method.
Background technology
Swamp eel is a kind of famous-brand and high-quality aquatic products, is loved by consumers.At present, the modes of reproduction of swamp eel mainly has nature numerous
Grow, artificial propagation and Ecology breed three kinds.The first is natural propagation, and this pattern requires that site area is big, and breeding season
Section length, close eel and eel seedling separation is difficult, therefore is not easy to carry out large-scale production；Second is swamp eel whole artificial propagation,
Close eel is easily dead during hastening parturition and rate of fertilization is low for this pattern, and from the point of view of current progress, artificial induced spawning problem is short
It is difficult to capture in time, therefore is also impossible to carry out large-scale production；The third is Ecology natural propagation, this pattern
Mainly by artificially simulating the ecological environment of a suitable swamp eel growth and breeding, bred in net cage, because it has
Breeding place is fixed, and collection ovum is convenient, and natural fertilization rate it is high the advantages of, therefore be current feasibility highest one kind breeding mould
Formula.Research on swamp eel embryonated egg artificial incubation has a lot, but incubation rate is very low, is usually no more than 30%.Or even some
Researcher thinks that swamp eel incubating oosperm be unable to do without foam nest.The artificial incubation technique of swamp eel embryonated egg becomes swamp eel Ecology
A technical bottleneck in reproduction technique.
The content of the invention
It is an object of the invention to the defect for overcoming prior art presence, there is provided a kind of large-scale artificial of swamp eel embryonated egg
Hatching method, to improve the hatching efficiency of swamp eel embryonated egg.
The present invention is achieved through the following technical solutions：
A kind of large-scale artificial hatching method of swamp eel embryonated egg, including hatchery facility, collecting fertilized eggs, artificial incubation and
Early stage feeding etc., described method also comprises the following steps：
1) special hatchery facility is built, cistern, the facility that drips, hatching frame and hatchery are set gradually by high potential difference；
2) swamp eel embryonated egg is obtained using Ecology propagation method, treating embryonated egg, neurula is arrived in development naturally in foam nest
Gather and be transferred in hatching frame during the tire phase and carry out artificial incubation；
3) neural embryo is laid in hatching frame, keeps embryo from water surface 1cm, oxygenation method promotes nerve using dripping
Embryonic development；
4) continue to stay in after young eel incubation of membrane temporarily to support in hatching frame, food is tamed and dociled by opening, is transferred to after feeding to the long 5cm of body
Continue to feed into net cage or other facilities.
Above-mentioned steps 1) described in hatchery facility include cistern 3, the facility that drips, hatching frame 9 and hatchery 7；Described
Cistern 3 includes water inlet pipe 1, screen pack 2 and cistern 3；The described facility that drips includes water pipe 4, water conduction hose 5, water dropping openings
6；Described hatchery 7 includes an outlet pipe 8；Described hatching frame 9 includes weeper 10, activity Dropbox 11, square frame frame
12, spacer screen piece 13 and it is interior go out eaves 14；
Cistern 3 is connected by water pipe 4, water conduction hose 5 with hatchery 7；
Hatching frame 9 is placed in described hatchery 7.
The above-mentioned technical scheme supporting with hatchery facility also includes：
The choosing source of hatching meets fishery standard water, the preferably good reservoir water of water quality or pond water；
The cistern storage Spawning water of hatching, keeps cistern water, to ensure continuously to supply for hatchery
The activity Dropbox of water, cistern and hatching frame keeps more than 30cm difference in height, and pressure is provided for water spray facility；
The filter screen filtration of hatching falls impurity and harmful organisms in Spawning water, keeps water quality pure and fresh；
Hatchery bottom of pond laying twice Chi Geng, for placing hatching frame；Hatchery end bottom water outlet is provided with freely
The outlet pipe of rotation, keeps embryonated egg to be located at the 1cm of hatchery underwater；
Hatching frame is made up of outer framework, spacer screen piece and activity Dropbox, and outer frame bottom is with 60 mesh screen cloth back covers, direction on housing
Inside go out eaves 2cm to escape to prevent eel seedling, an activity Dropbox is capped above described hatching frame, some drops are provided with described Dropbox
The aperture of water, described hole diameter is 2mm；
The facility that drips is made up of water pipe 4 and water conduction hose 5, and water pipe 4 is connected to the bottom of cistern 3, by the water of cistern
The side of hatchery is led to, the activity then led to the connecting water pipe 4 of water conduction hose 5 and by the water in water pipe 4 above hatching frame
Dropbox 11, equidistant on water conduction hose 5 to be provided with some apertures, aperture is 3mm, the water in water conduction hose is dripped through activity Dropbox
Enter to hatch frame, its effect is for embryo's oxygenation.
Above-mentioned steps 2) described in utilization Ecology method obtain swamp eel embryonated egg the step of specifically include：
1) water peanut and water hyacinth are planted in pond net box, natural propagation Ecology environment is set up, simulation swamp eel is shallow
The natural environmental condition in water waters is bred, in mating period, when foam nest occurs successively in each net cage, in time inspection bubble
Foam nest, foam nest is marked with label；
2) development of fertilized ova situation in daily check foam nest, embryonated egg is fished in neural embryonic period, embryonic phase；
3) pasture and water first are cut along foam nest surrounding with scissors, then screen cloth is copied into below foam nest, finally by water hyacinth
Even root lifts, and is carried upwards while screen cloth also coordinates, it is ensured that all embryonated eggs are all taken out, by foam nest, together with embryonated egg and water
Grass is placed in the basin or bucket for filling pond water together, Transportation, keeps water level submergence water hyacinth or water peanut；
4) pasture and water for having foam nest are immersed in the water, shaken repeatedly several times, until embryonated egg is shaken off into basin or bucket completely,
Then added water flushing, picks pasture and water, chooses the harmful organisms for embryonated egg of causing harm, and embryonated egg is put into hatching frame is manually incubated
Change.
Above-mentioned steps 3) described in the cultural method of neural embryo specifically include：
1) selection water temperature is 27 DEG C of -33 DEG C of progress artificial incubation, and the top when temperature is less than 27 DEG C in hatchery is set up
Plastic sheeting is incubated, and sets up sunshade net in the top of hatchery when temperature is higher than 33 DEG C or the increasing amount of dripping is cooled；
2) each hatching frame flush system places neural embryo 2000；
3) whether each hatching frame of cleaning in time has harmful organisms to endanger embryonated egg and downright bad ovum, eel incubation of membrane 2 days
Afterwards, start to tame and docile food and feed, it is young soft-shelled turtle powder (such as young soft-shelled turtle powder of commodity of Foochow hippocampus feed corporation,Ltd production to tame and docile bait material
Material, but not limited to this), young soft-shelled turtle powder is added water the granule of mung bean size is made and feeds and hatched in frame, each hatching is confined a little
4 points are fed, residual bait, excrement are cleared up after half an hour, tame and docile bait material are fed daily 4 times；Hatching frame is carried daily once, and seedling is entered
Row constitution is taken exercise, and checks the growth that the seedling come is hatched in hatching frame, when feeding 5cm long to body, is transferred to special net cage
Or continue to raise in nursery pond.
The outstanding advantages of the present invention are as follows：
Existing swamp eel artificial incubation rate is very low, is usually no more than 30%.Even some researchers think that swamp eel is fertilized
Egg hatching be unable to do without foam nest.A kind of artificial incubation technique of swamp eel embryonated egg of the present invention is in swamp eel Ecology reproduction technique
A technical bottleneck.
The present invention is using neural embryo as artificial incubation starting point, application specific hatchery facility and the side such as lasting oxygenation of dripping
Method, more than 90% is brought up to by swamp eel embryonated egg artificial incubation rate, and technical support is provided for swamp eel Ecology propagation in scale.
Brief description of the drawings
Fig. 1：It is the hatchery facility general structure schematic diagram that the present invention is used.
Fig. 2：Hatching frame in hatchery facility of the present invention shows structural representation.
The explanation of reference：
1. water inlet pipe；2. screen pack；3. cistern；4. water pipe；5. water conduction hose；6. water dropping openings；7. hatchery；8. water outlet
Pipe；9. hatch frame；10. activity Dropbox；11. outer framework；12. spacer screen piece；13. in go out eaves.
Embodiment
Embodiment 1
As shown in Fig. 1 and Fig. 2：
A kind of swamp eel embryonated egg large-scale artificial hatching method is applicant provided, its step is set including setting up hatching
Apply, collecting fertilized eggs, artificial incubation and early stage feeding etc., described method also comprises the following steps：
(1) hatchery facility is set up
1. water source：Selection meets the water source of fishery standard water, the preferably good reservoir water of water quality or pond water.
2. cistern：Spawning water is stored, cistern is remained certain water, to ensure being continuously to incubate
Change pond to supply water, while making cistern keep more than 30cm difference in height with hatchery, pressure is provided for water spray facility.
3. screen pack：Fall impurity and harmful organisms in Spawning water with described filter screen filtration, keep water quality pure and fresh.
4. hatchery：Hatchery facility is set according to mode as shown in Figure 1 and according to difference in height, the hatchery facility includes water inlet
Pipe 1, screen pack 2；Cistern 3；Water pipe 4；Water conduction hose 5；Water dropping openings 6；Hatchery 7；Outlet pipe 8；Hatch frame 9；Activity Dropbox
10；Square outer framework 11；Spacer screen piece 12；Inside go out eaves 13.
Hatchery bottom of pond laying twice Chi Geng, is used for placing hatching frame；Hatchery end bottom water outlet design one
Individual outlet pipe free to rotate, its purpose has two：One is that can thoroughly change water to hatchery, heavy in discharge hatchery in time
Starch, it is ensured that water cleaning；Two be the regulation hatchery depth of water, keeps embryonated egg to be located at the 1cm of underwater.
5. frame is hatched：The hatching frame length of the present embodiment is respectively 50cm, 50cm, 5cm, by outer framework, spacer screen piece
With the part of activity Dropbox three composition.Outer framework uses 4 pieces of long 50cm, high 5cm, wide 2cm specifications batten or plastic plate, and 50cm is made
× 50cm × 5cm square frames, with 60 mesh screen cloth back covers, top inwardly goes out eaves 2cm with veneer or plastic sheet again, escaped to prevent eel seedling
Ease.It is easy to the activity Dropbox of capping length and width respectively for 50cm, Dropbox above oxygenation of dripping, hatching frame simultaneously to build quiet environment
It is drilled with aperture 2mm aperture 625.
6. drip facility：A delivery port is opened in columns base, introduction pipe is in the side of hatchery, then by flexible pipe
Be connected with pipeline, hose length with can free arrival activity Dropbox be advisable, equidistant on flexible pipe to be provided with many places aperture, aperture is
3mm, makes the water in flexible pipe instill hatching frame through activity Dropbox.
(2) swamp eel embryonated egg being fished for and transports
1. patrol, mark foam nest
Ecology natural propagation is to set the pasture and water such as water peanut and water hyacinth by artificial in pond net box, as much as possible
The propagation method that simulation swamp eel is carried out in the natural environmental condition of shallow waters.When mating period arrives, each net cage can Lu Lu
Occurs foam nest continuously, foam nest of patrolling is found and with marking substance markers.
2. development of fertilized ova situation is checked：Development of fertilized ova situation in daily check foam nest, is dragged for during to neural embryonic period, embryonic phase
Take embryonated egg.
3. neural embryo is fished for：Pasture and water first are cut along foam nest surrounding with scissors, then screen cloth is copied into foam nest lower section,
Water hyacinth finally is connected into root to lift, carried upwards while screen cloth also coordinates, it is ensured that all embryonated eggs are all taken out, by foam nest, even
It is placed in together in the basin or bucket for filling pond water with embryonated egg and pasture and water, Transportation, water level is to submerge water hyacinth or water peanut
It is advisable.
4. the screening of neural embryo：The pasture and water for having foam nest are immersed in the water, shaken repeatedly several times, until embryonated egg is complete
Shake off into basin or bucket, then add water flushing, picks pasture and water, choose the harmful organisms such as the dragonfly larva of harm embryonated egg, you can
It is put into hatching frame and carries out artificial incubation.It should be noted that this process embryonated egg has lost the protection of foam nest, action is light, fast.
(3) artificial incubation
1. temperature：Suitably hatching water temperature is 27 DEG C -33 DEG C, and plastics can be set up above hatchery when temperature is less than 27 DEG C
Film can set up sunshade net above hatchery when temperature is higher than 33 DEG C or the increasing amount of dripping is cooled to be incubated.
2. density：Each hatching frame, which can tile, places neural embryo 2000.
3. manage：Check water pump whether normal operation；Check whether each hatching frame has the dragonfly larva for embryonated egg of causing harm
With downright bad ovum, once finding, then need to clear up away in time.After eel incubation of membrane 2 days, start to tame and docile food and feed.Foochow can be used
The young soft-shelled turtle material of hippocampus feed corporation,Ltd production is carried out taming and dociling food and fed.Add quality water that the group of mung bean size is made in young soft-shelled turtle material
Shape, feeds in hatching frame, and each hatching, which is confined, a little feeds 4 points, and residual bait, excrement are cleared up after half an hour, young soft-shelled turtle material 4 is fed day
It is secondary.Carry daily and once hatch frame, seedling is performed physical exercise, built up health.Check the seedling growth feelings for hatching to come in hatching frame
Condition, when feeding 5cm long to body, you can be transferred in special net cage or nursery pond and continue to raise.
Claims (1)
1. a kind of large-scale artificial hatching method of swamp eel embryonated egg, including set up hatchery facility, collecting fertilized eggs, artificial incubation
Fed with early stage；Characterized in that, described method comprises the following steps：
(1) special hatchery facility is set up, cistern, the facility that drips, hatching frame and hatchery are set gradually by high potential difference；It is described
Hatchery facility include cistern (3), the facility that drips, hatching frame (9) and hatchery (7)；Described cistern (3) includes water inlet
Manage (1) and screen pack (2)；The described facility that drips includes water pipe (4), water conduction hose (5), water dropping openings (6)；Described hatchery
(7) outlet pipe (8) is included；Described hatching frame (9) include weeper (10), activity Dropbox (11), square frame frame (12),
Spacer screen piece (13) and it is interior go out eaves (14)；
Described cistern (3) is connected by water pipe (4), water conduction hose (5) with hatchery (7)；
Described hatching frame (9) is placed in described hatchery (7)；
According to following steps：
1) Spawning water is the good reservoir water of water quality or pond water；
2) cistern storage Spawning water, keep cistern water, with ensure continuously for hatchery supply water, cistern with
The activity Dropbox for hatching frame keeps more than 30cm difference in height；
3) with the impurity and harmful organisms in filter screen filtration Spawning water, keep water quality pure and fresh；
4) hatchery bottom of pond laying twice Chi Geng, for placing hatching frame；Hatchery end bottom water outlet, which is provided with, freely to be turned
Dynamic outlet pipe, keeps embryonated egg to be located at the 1cm of hatchery underwater；
5) hatching frame is made up of outer framework, spacer screen piece and activity Dropbox, outer framework bottom 60 mesh screen cloth back covers, outer framework top
Inwardly go out eaves 2cm to escape to prevent eel seedling, be capped an activity Dropbox above described hatching frame, be provided with described activity Dropbox
Some apertures dripped, described hole diameter is 2mm；
6) drip in facility, water pipe (4) is connected to the bottom of cistern (3), the water of cistern is led to the side of hatchery, so
The activity Dropbox (11) led to afterwards with water conduction hose (5) connecting water pipe (4) and by the water in water pipe (4) above hatching frame, is leading
Equidistant on water tube hose (5) to be provided with some apertures, aperture is 3mm, the water in water conduction hose is instilled hatching frame through activity Dropbox；
(2) swamp eel embryonated egg is obtained using Ecology propagation method：
1) water peanut and water hyacinth are planted in pond net box, natural propagation Ecology environment is set up, simulation swamp eel is in shallow water water
The natural environmental condition in domain is bred, in mating period, when foam nest occurs successively in each net cage, foam of patrolling in time
Nest, foam nest is marked with label；
2) development of fertilized ova situation in daily check foam nest, embryonated egg is fished in neural embryonic period, embryonic phase；
3) water peanut and water hyacinth first are cut along foam nest surrounding with scissors, then screen cloth is copied into below foam nest, finally will
Water peanut and water hyacinth connect root and lifted, and are carried upwards while screen cloth also coordinates, it is ensured that all embryonated eggs are all taken out, by foam nest,
It is placed in together with embryonated egg and pasture and water in the basin or bucket for filling pond water, Transportation, keeps water level submergence water hyacinth and water
Peanut；
4) water peanut and water hyacinth that have foam nest are immersed in the water, shaken repeatedly several times, until embryonated egg is shaken off to basin completely
Or in bucket, then add water flushing, picks pasture and water, choose the harmful organisms of harm embryonated egg, embryonated egg is put into hatching frame is carried out
Artificial incubation；
5) the neural embryo of collection when development is to neural embryonic period, embryonic phase naturally in foam nest for embryonated egg；
(3) neural embryo is laid in hatching frame, keeps embryo from water surface 1cm, oxygenation method promotes neurula using dripping
Fetal hair is educated；
1) selection water temperature is 27 DEG C of -33 DEG C of progress artificial incubation, and the top when temperature is less than 27 DEG C in hatchery sets up plastics
Film thermal insulating, sets up sunshade net in the top of hatchery when temperature is higher than 33 DEG C or the increasing amount of dripping is cooled；
2) each hatching frame flush system places neural embryo 2000；
3) each hatching frame harmful organisms of cleaning in time and downright bad ovum, swamp eel incubation of membrane start to tame and docile food and fed, tame and docile after 2 days
Bait material is young soft-shelled turtle powder, young soft-shelled turtle powder is added water the granule of mung bean size is made and feeds and hatched in frame, each hatching is confined
Point feeds 4 points, and residual bait and excrement are cleared up after half an hour；Tame and docile bait material is fed daily 4 times；Hatching frame is carried daily once, to small
Seedling carries out constitution exercise, checks the growth that the seedling come is hatched in hatching frame, when feeding 5cm long to body, is transferred to special
Continue to raise in net cage or nursery pond.
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| CN201510165609.9A CN104798704B (en) | 2015-04-09 | 2015-04-09 | A kind of large-scale artificial hatching method of swamp eel embryonated egg |
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| CN104798704B true CN104798704B (en) | 2017-09-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102117364B1 (en) * | 2018-04-12 | 2020-06-01 | 농업회사법인주식회사 귀뚜라미와 산개구리 | Rana dybowskii artificial incubation plant |
| KR102117363B1 (en) | 2018-04-12 | 2020-06-01 | 농업회사법인주식회사 귀뚜라미와 산개구리 | Rana dybowskii hibernation and spawning plant |
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| CN105994041A (en) * | 2016-05-27 | 2016-10-12 | 张家港市华阳生态农业发展有限公司 | Artificial breeding box and breeding method thereof for ricefield eels |
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| CN200966263Y (en) * | 2006-11-08 | 2007-10-31 | 华中农业大学 | Artificial device for incubating zygote of monopterus albus |
| CN101933469B (en) * | 2009-08-14 | 2012-08-15 | 长江大学 | Method for artificial mass propagation of rice field eel seedlings |
| CN103004660B (en) * | 2012-12-19 | 2014-03-12 | 中国水产科学研究院长江水产研究所 | Parent fish culturing method for scaled artificial breeding of finless ell |
| CN104335928B (en) * | 2013-07-25 | 2016-05-11 | 长江大学 | A kind of method of artificial bionic state breeding swamp eel seed |
| CN103960186B (en) * | 2014-05-14 | 2016-04-20 | 中国水产科学研究院长江水产研究所 | A kind of method of swamp eel artificial incubation case and hatching |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102117364B1 (en) * | 2018-04-12 | 2020-06-01 | 농업회사법인주식회사 귀뚜라미와 산개구리 | Rana dybowskii artificial incubation plant |
| KR102117363B1 (en) | 2018-04-12 | 2020-06-01 | 농업회사법인주식회사 귀뚜라미와 산개구리 | Rana dybowskii hibernation and spawning plant |
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