CN108617555A - A kind of method that recirculated water promotes America hilsa herring parent mating fertilization - Google Patents

A kind of method that recirculated water promotes America hilsa herring parent mating fertilization Download PDF

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Publication number
CN108617555A
CN108617555A CN201810438867.3A CN201810438867A CN108617555A CN 108617555 A CN108617555 A CN 108617555A CN 201810438867 A CN201810438867 A CN 201810438867A CN 108617555 A CN108617555 A CN 108617555A
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parent
water
egg
pond
promotes
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CN108617555B (en
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施永海
徐嘉波
谢永德
税春
邓平平
张海明
蒋飞
张根玉
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Shanghai Fisheries Research Institute Shanghai Fisheries Technical Extension Station
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Shanghai Fisheries Research Institute
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/10Culture of aquatic animals of fish
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, 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 present invention relates to technical field of aquaculture, specifically a kind of recirculated water promotes America hilsa herring parent to mate the method for fertilization, by America hilsa herring parent promote production the structure of the circulatory system, the parent that promotes production put in a suitable place to breed it is preceding prepare, the parent that promotes production selects and puts in a suitable place to breed, parent promotes production mating fertilization, fish-egg is collected, parent clears up and supplement and etc. form.The method that the present invention is fertilized using recirculated water promotion America hilsa herring parent mating, the problem of effectively preventing developing preferable parent and interfering with each other during mating before and after developing slow parent and absorb fertilized eggs;It simultaneously effective prevents fertilized eggs early infection mould and leads to the mould outburst during hatching;Avoid the interference that fish-egg is absorbed by other America hilsa herrings and artificially fished for fish-egg to mating;It has saved and has used water, especially valuable Deep Underground water resource, while method is easy to operate, practical, be suitble to the production of America hilsa herring propagation in scale, and be easy to be accepted and promote.

Description

A kind of method that recirculated water promotes America hilsa herring parent mating fertilization
Technical field
The present invention relates to technical field of aquaculture, specifically, be a kind of recirculated water promote America hilsa herring parent mating by The method of essence.
Background technology
America hilsa herring (Alosa sapidissima) is commonly called as Alosa sapidissima, is distributed mainly on North America Atlantic Ocean west bank from adding It puts on airs in Quebec to the Florida State river in the U.S. and ocean.America hilsa herring system breeding migration fish, plump big and fleshy, meat is fresh Delicious, the very high economic value of tool is introduced a fine variety extensively all over the world.At home, Shanghai Aquatic Product Institute took the lead in 1998 From the U.S., Mississippi introduces a fine variety the wild produced fertilized eggs of America hilsa herring, then carries out incubating oosperm, seed rearing and supports It grows.Due to America hilsa herring because, meat similar to the shape of Chinese hilsa herring compares favourably, in the case that in the Changjiang river, hilsa herring is endangered, America Hilsa herring is also very popular, and the market price is also very high, 80~150 yuan/jin, and raiser cultivates the fish, the seedling of the fish one after another Kind has formed vast market prospect.
Currently, there are mainly three types of the artificial propagation modes of America hilsa herring:1) be give injection of hormone, artificial insemination of hastening parturition, obtain A small amount of fertilized eggs are obtained, such as:Patent《A kind of America hilsa herring artificial induced spawning, insemination and method for incubating oosperm》(publication number CN101642067A, application number 200910034085.4) and paper《The artificial propagation and embryonic development of America hilsa herring》(Xu Gangchun Deng 2012), but the method difficulty is big, artificial propagation success rate is low, as described in Xu Gangchun etc. (2012) research paper:Due to The stress reaction that the operation of the artificial propagations such as injection is excessive causes stress reaction to America hilsa herring, easily causes the ovulation and production of ovum Ovum process is uncoordinated, causes bradytoia or causes parent population dead so that artificial propagation efficiency reduces, cost increases, this method is through industry for many years Interior technical staff puts into practice, and difficulty is higher, parent's loss is big, seldom uses;2) it is in the hilsa herring parent's reinforced cultivating pond of America Ecological regulation and control is carried out, the deep-well waterside water inlet that 150 meters of underground is below, winter-spring season water temperature stability is at 16~17 DEG C is especially extracted Side discharge, which carrys out increased water flow, stimulates (1.2~2.5m3/h;4~7m3/h;10~12m3/ h), promote parent's natural spawning, then receives Collect fish-egg, can get a certain number of fertilized eggs, such as patent《A kind of artificial breeding ecological factor promotes America hilsa herring natural spawning Method》(publication number CN103478022A, application number 201310339384.5),《One kind promotes pond to support America hilsa herring with ecological regulation and control The method of natural spawning》(publication number CN101884310A, application number 201010216569.3) and paper《The artificial breeding of America hilsa herring It grows and embryonic development》(Xu Gangchun etc., 2012), this method also has limitation:This method America hilsa herring is antenatal not to select the parent that promotes production, but by The gonad development asynchronism during the hilsa herring parent culture of America, one can be mingled in by developing preferable parent and developing slow parent It rises, develops preferable parent and mate in advance the time of fertilization, develop slow parent and interfere parent's natural mating and absorb produced fertilization Ovum;In turn, when developing ripe slow gonad development of parents, mate and oviposit, those original parents for participating in mating enter production The parent culture phase afterwards, postpartum parent interferes parent's natural mating in turn, while postpartum parent is badly in need of nutritional supplementation, and more hobby is taken the photograph Take the fish-egg in pond to supplement endotrophic;In parent culture pond, commodity bait is normally fed, residual bait is easily sunk to the bottom, and excrement is more, The fertilized eggs of collection clear up special suffering, and the fertilized eggs after clearing up are since the pollution of early period causes incubating oosperm period mould Bacterium is broken out;The big discharge that flow stimulation simultaneously is gone out using deep-well waterside into side, largely wastes good natural resources;3) it uses Circuit of promoting production obtains batch America hilsa herring fertilized eggs, although solving the difficult point of previous technique:Do not develop into dried fish disturb, fertilized eggs cleaning And phreatic water uses limitation and waste, such as patent application《A method of obtaining batch America hilsa herring fertilized eggs》(publication number CN105379650A, application number 201510789940.8), but this method collection fish-egg is cumbersome, the fish simultaneously because America hilsa herring ingests The habit of ovum lays eggs mating period, needs special messenger to keep an eye on circuit of promoting production, collect fish-egg in time, in order to avoid by other America hilsa herring intakes Fish-egg needs staff to enter circuit of promoting production and fishes for fish-egg, this itself can also give other America moreover, when collecting fish-egg Hilsa herring parent mating interferes.So being badly in need of a kind of method solving above-mentioned America hilsa herring propagation method defect.
Invention content
It is an object of the invention to solve the defect of current America hilsa herring propagation method, a kind of recirculated water is provided and promotes America hilsa herring The method of parent's mating fertilization.
The first aspect of the present invention provides a kind of method that recirculated water promotes America hilsa herring parent mating to be fertilized, by America hilsa herring Parent promote production the structure of the circulatory system, the parent that promotes production put in a suitable place to breed it is preceding prepare, the parent that promotes production selects and puts in a suitable place to breed, parent promotes production mating by Essence, fish-egg are collected, parent's cleaning and supplement form, including:
A) America hilsa herring parent promotes production the structure of the circulatory system:The parent promotes production the circulatory system, including adjacent collection ovum Pond and promoting production pond, the egg-collecting tank are rectangle cement pit, and collection ovum net cage is equipped in the egg-collecting tank;The promoting production pond It is square cement pit, the promoting production pond vertical section is infundibulate, and pool aottom center is equipped with discharge outlet, and run in water below discharge outlet Pipe, the promoting production pond are connected by drainpipe with the collection ovum net cage lower end in egg-collecting tank;The egg-collecting tank is close to promoting production pond Side be equipped with air lift circulation pipe and immersible pump.
Preferably, the America hilsa herring parent promotes production the top setting bow-shaped ring top of the circulatory system, and top covers 2~3 layers Shade film.Ensure the 300~500Lux of intensity of illumination range on daytime.
Preferably, the long 11.0m of the promoting production pond × wide 10.0m × high 1.2~1.3m, 1.05~1.15m of the depth of water.
Preferably, chamfering is set on the promoting production pond square quadrangle.
Preferably, the discharge outlet of the promoting production pond pool aottom center is 6 cun of discharge outlet, and discharge outlet is welded equipped with stainless steel strip Manufactured, the round interior drainage cover for " well " type in outer ring, drainage cover lower section connects 4 cun of drainpipes.Pool aottom center discharge outlet and pool wall The drop of bottom is 20~30cm.It is equipped with nanometer gas tube along promoting production pond pool wall surrounding bottom, is formed and is closed inflation ring.
Preferably, the egg-collecting tank be long and narrow rectangle cement pit, long 11.0m × wide 1.0m × high 1.6~1.7m, 1.4~1.5m of the depth of water.
Preferably, the egg-collecting tank is equipped with 20 1 cun of air lift circulation pipes close to the side of promoting production pond, passes through the side of inflation Formula promotes the water of egg-collecting tank into promoting production pond.Homonymy is additionally provided with the immersible pump of 2 cun of 0.75KW, by hose the water of egg-collecting tank Flow back into promoting production pond.
Preferably, the collection ovum net cage in the egg-collecting tank, including cuboid net cage and the net cage frame for fixed cage, The net cage is fixed on by net cage nylon rope on net cage frame, and the net cage bottom center opens circular hole, and sewing one is prominent downwards The cylindric net cover of the both ends open gone out, the net cover make net cage inside and extraneous phase by the circular hole of net cage bottom center It is logical.The collection ovum net cage is in use, collection ovum net cage is placed in egg-collecting tank, promoting production pond passes through in drainpipe and egg-collecting tank Collect ovum net cage lower end to be connected.
The net cover is directly sleeved on the drainpipe nozzle of connection promoting production pond when use.The water conservancy of the promoting production pond Collection ovum net cage is entered by center drain and drainpipe Parallel to the flow direction with level pressure difference, makes water of the fish-egg with drainpipe Stream enters net cage from bottom, and fish-egg is stranded in net cage, and flow enters egg-collecting tank by net cage mesh sheet, then by stripping tube and diving Pump enters promoting production pond, forms flow and vortex, while also completing entire water cycle.It is more advantageous in bottom opening to collect ovum net cage In collection as the hilsa herring of America, the fertilized eggs of more heavy property, fertilized eggs are uniform from bottom to top with flow during collection Ground stirs the easy sinking of collection ovum net cage fertilized eggs, the accumulation that lateral opening is avoided in collection ovum net cage, and due to the work of flow Push one end to by fertilized eggs, cause ovum grain intensive and rubs, it is final to influence the drawbacks such as hatching rate.
Preferably, outer sews nylon rope below the net cover, for net cover to be fixed on drainpipe nozzle.It is described Net cage frame be process by moso bamboo, including be fixed into rectangular two net cage frame long sides and two net cage frame broadsides, and Perpendicular to rectangular four net cages frame stabilizer blade.The length of the net cage frame long side, net cage frame broadside and net cage frame stabilizer blade Degree is respectively 135cm, 90cm, 60cm.The net cage is processed by 30 mesh screens, more preferable polythene net, and length and width are a height of 100×60×40cm.The net cover fiber cloth or it is really cool be made, diameter 20cm, high 35cm.The net cage and net cage Depending on the size of frame can be with egg-collecting tank size.
B) parent that promotes production puts preceding preparation in a suitable place to breed:Before the parent that promotes production puts in a suitable place to breed, disappear to promoting production pond and egg-collecting tank and auxiliary device Poison uses after fill cycle, and water temperature maintains 18~19 DEG C.
Preferably, it before the parent that promotes production puts in a suitable place to breed, carries out disinfection to promoting production pond and egg-collecting tank and auxiliary device, is noted to whole system Water, full pool spilling head after being dissolved with 10PPm calcium hypochlorites open air lift tube valve, and the water in whole system is made to recycle 1~2 hour, Then after impregnating 24 hours, draining is rinsed well, is dried 3~4 days and is reused, and parent, which puts in a suitable place to breed first 2~3 days, intakes, and is passed through with water Pond level-one precipitation, cement pit two-stage precipitation and air energy unit temperature adjustment, water inlet are filtered with 80 mesh sieve tulles, after water inlet, use 1 Full pool spilling head after the dodium thiosulfate dissolving of~2PPm, opens air lift cycle and nanotube inflation, and cycle can use for 24 hours, water temperature Maintain 18~19 DEG C.
C) parent that promotes production selects and puts in a suitable place to breed:At the beginning of 5 months~at the beginning of 6 months, select to promote production and be put into promoting production pond with America hilsa herring parent, it promotes production Parent's breeding density is 0.5~1.5 tail/m2, sex ration 1:1.6~1:2.0.
Preferably, it selects and is promoted production with parent in the hilsa herring parent's reinforced cultivating pond of America, parent's reinforced cultivating pond is simple big Canopy cement pit.Select the requirement for the parent that promotes production:Raun postabdomen expands and soft, and cloacal aperture is micro- red, some gently press abdomen not flow Ovum;Milter, it is light that cloacal aperture is pressed to have a small amount of sperm to flow out, and meet water and do not dissipate.
Preferably, in election process, parent point male and female are respectively put into net cage and temporarily support, and cage size is long 2.0m × wide 1.2m × high 0.5m, the mesh sheet of net cage are the leather strap nets that mesh is 2 × 3mm, and temporarily foster density is 10~15 tails of raun/case, milter 20~ 30 tails/case, temporarily the foster time was no more than 30 minutes;Promoting production pond is put into using plastic cylinder transport, the diameter 32cm of plastic cylinder is high 35cm is spent, 28 liters of the capacity of bucket, 15 liters of installation of water in bucket when transporting fish, i.e., at the 1/2 of bucket, when transport, every barrel of raun puts 1 tail, male Fish tank puts 2~3 tails.
Preferably, it entirely selects and to be loaded haulage time every time softly not from water and be no more than 15 with operation in transportational process Minute;Parent's breeding density of promoting production is 0.5~1.5 tail/m2, sex ration 1:1.6~1:2.0.
D) parent promotes production to mate and be fertilized:After parent enters promoting production pond, to keep absolutely quiet around, 24 hours it is continuous not between Nanometer inflation and air lift cycle are opened in disconnection, are not fed commercial feed during promoting production, are changed water every afternoon 1 time, every time about 10~ 15%, holding promote production water temperature be 19.0~20.0 DEG C.
Preferably, evening 20:Morning 10 00~next day:00 period ON cycle immersible pump promotes circulating pressure, makes to promote production Pond sum aggregate ovum water potential difference reaches 20~30cm so that the water of promoting production pond is reached by the flow rate of water flow of 4 cun of drainpipes to egg-collecting tanks To 20m3/ h forms vortex above promoting production pond center drain.
Preferably, water operation is specifically changed to open the drain valve of egg-collecting tank, so that the water level of egg-collecting tank is reduced half, is then used 80 mesh sieve tulles filtered water inlets are pond water source containing Micro Algae, transparency is 20~30cm with water, are exposed by cement pit Gas precipitates and air energy unit is cooled to 16~18 DEG C, with the water temperature that keeps promoting production for 19.0~20.0 DEG C, offsets cyclic system of promoting production System water temperature caused by temperature height rises;Dead individuals are removed in time, to prevent dead individuals from blocking center drain.
E) fish-egg is collected:Collect fish-egg general 10:00~11:The soft bolting silk circle diddle-net diddle-net bottom portion of 00,24 mesh, on a small quantity Repeatedly rinsing fish-egg removes water body deposit.
Preferably, America hilsa herring parent mates fertilization time generally 5:00~8:00, collect fish-egg general 10:00~11: 00, before collecting fish-egg, first the mesh sheet surrounding of cleaning collection ovum net cage, removes the rubbish for being attached to mesh sheet, then lifts net cage, make net Bottom portion is suspended from 5~10cm of the water surface or less, half wet condition of fish-egg sunk to the bottom, with the soft bolting silk circle diddle-net diddle-net bottom of 24 mesh The fish-egg in portion, collection is mingled with scale and water body deposit, needs to clean and detach, first few with the soft bolting silk circle diddle-net point of 24 mesh Amount repeatedly rinses fish-egg, removes water body deposit;6 × 6mm net the sievings of mesh specification are used again, reject the excrement of scale and forming, Then with hatchery is moved on to after beaker amount fish-egg volumetric enumeration, fish-egg cleaning and cleaning use the water of promoting production pond with water.
F) parent's cleaning and supplement:Parent was cleared up every 7~10 days 1 time, and cleaning parent Shi Huanshui 1/2 changes water water source and wants Step of seeking common ground d, but the temperature difference for changing to the water temperature and former water temperature of water is less than 1 DEG C;The parent for having neither part nor lot in mating fertilization is stayed pond, is produced Parent moves into reinforced cultivating pond afterwards, cultivates again;In addition new parent is supplemented to promoting production pond.
The outstanding feature of the present invention compared with the existing technology is:
1, the present invention using recirculated water promote America hilsa herring parent mate fertilization method improve now two kinds of U.S.s The method of continent hilsa herring breeding, solves going wrong for two methods at the advantages of highlighting two methods;
2, it solves and carries out the defect that ecological regulation and control obtains fertilized eggs method in parent's reinforced cultivating pond, parent's reinforced cultivating Afterwards, the parent that promotes production is selected before promoting production, purpose is strong, effectively prevents developing preferable parent and develops the front and back friendship of slow parent The problem of being interfered with each other with period and absorbing fertilized eggs;This programme is also avoided because of pollutant in parent culture pond and residual simultaneously Bait is selected after promoting production parent's shifting pond, effectively prevents fertilized eggs early infection mould and lead to the mould outburst during hatching;
3, it solving and is obtained in the hilsa herring fertilized eggs of batch America using circuit of promoting production, collection fish-egg is cumbersome, lays eggs mating period, Circuit of promoting production is kept an eye on without special messenger, circulating water flow collects fish-egg, avoids fish-egg by other America hilsa herring intakes and artificially fishes for fish Interference of the ovum to mating;
4, technical solution of the present invention uses bait of the unit cell algae as America hilsa herring parent, solves that feed commercial feed residual Problem more than bait and excrement, also avoids the difficulty of the fish-egg collected cleaning separation, and the fertilized eggs cleaning of collection is simple;Simultaneously It alleviates the long-term hungry and parent of the parent in not bait throwing in reproductive modes and absorbs fertilized eggs;
5, technical solution of the present invention stimulates parent to mate using recirculated water flow, abandons the water inlet side discharge of deep-well waterside Flow stimulation mode, saved and used water, especially valuable Deep Underground water resource, while method is easy to operate, practical, fits The production of America hilsa herring propagation in scale is closed, and is easy to be accepted and promote.
Description of the drawings
Fig. 1 is that the America hilsa herring parent that uses promotes production the floor map of the circulatory system in the present invention;
Fig. 2 is that the America hilsa herring parent that uses promotes production the diagrammatic cross-section of the circulatory system in the present invention;
Fig. 3 is that the America hilsa herring parent that uses promotes production and collects the structural schematic diagram of ovum net cage in the circulatory system in the present invention.
Reference numeral and component part involved in attached drawing is as follows:
1- egg-collecting tanks;2- promoting production ponds;3- drainpipes;4- water (flow) directions;5- immersible pumps;6- air lift circulation pipes;7- collection ovum nets Case;71- net cage frame long sides;72- net cage frame broadsides;73- net cage frame stabilizer blades;74- net cages;75- net cage nylon ropes;76- net covers; 77- nylon ropes.
Specific implementation mode
It elaborates to specific implementation mode provided by the invention with reference to embodiment.
The America hilsa herring parent used in 1 present invention of embodiment promotes production the circulatory system
Please refer to attached Fig. 1 and 2, Fig. 1 is that the America hilsa herring parent used in the present invention promotes production the floor map of the circulatory system; Fig. 2 is that the America hilsa herring parent that uses promotes production the diagrammatic cross-section of the circulatory system in the present invention.
The America hilsa herring parent used in the present invention promotes production the circulatory system, including adjacent egg-collecting tank 1 and promoting production pond 2, described Egg-collecting tank 1 be long and narrow rectangle cement pit, collection ovum net cage 7 is equipped in the egg-collecting tank 1.The promoting production pond 2 is close Like square cement pit, 2 vertical section of promoting production pond is infundibulate, and pool aottom center is equipped with discharge outlet, runs in below discharge outlet Water pipe 3, the promoting production pond 2 are connected by drainpipe 3 with 7 lower end of collection ovum net cage in egg-collecting tank 1.
2 long 11.0m of the promoting production pond × wide 10.0m × high 1.2~1.3m, 1.05~1.15m of the depth of water.Described promotes production Chamfering is arranged on square quadrangle in pond 2.The discharge outlet of 2 pool aottom center of promoting production pond is 6 cun of discharge outlet, and discharge outlet is equipped with It is the drainage cover of " well " type made of stainless steel strip weldering, in the circle of outer ring, 4 cun of drainpipes 3 is connect below drainage cover.It arranges pool aottom center The drop of the mouth of a river and pool wall bottom is 20~30cm, and nanometer gas tube is equipped with along 2 pool wall surrounding bottom of promoting production pond, is formed to be closed and be filled Compression ring.
The egg-collecting tank 1 be long and narrow cement pit, long 11.0m × wide 1.0m × high 1.6~1.7m, the depth of water 1.4~ 1.5m.Egg-collecting tank 1 is equipped with 20 1 cun of air lift circulation pipes 6 close to the side of promoting production pond 2, egg-collecting tank 1 by way of inflation Water is promoted into promoting production pond 2, and homonymy is additionally provided with the immersible pump 5 of 2 cun of 0.75KW, and the water of egg-collecting tank 1 is flowed back into rush by hose Produce pond 2.
Collection ovum net cage 7 is equipped in the egg-collecting tank 1.Attached drawing 3 is please referred to, attached drawing 3 is the America hilsa herring used in the present invention Parent, which promotes production, collects the structural schematic diagram of ovum net cage in the circulatory system.The collection ovum net cage 7, including cuboid net cage 74 and be used for The net cage frame of fixed cage 74, the net cage 74 are fixed on by net cage nylon rope 75 on net cage frame, 74 bottom of net cage Portion opens in center circular hole, sews the cylindric net cover 76 of a downward projection of both ends open, and the net cover 76 passes through 74 bottom of net cage The circular hole in portion center makes 74 inside of net cage be communicated with the external world.The collection ovum net cage 7 by collection ovum net cage 7 in use, be placed on collection In ovum pond 1, promoting production pond 2 is connected by drainpipe 3 with 7 lower end of collection ovum net cage in egg-collecting tank 1.
The net cover 76 is directly sleeved on 3 nozzle of drainpipe of connection promoting production pond 2 when use.The promoting production pond 2 Water conservancy collection ovum net cage 7 is entered by center drain and 3 Parallel to the flow direction 4 of drainpipe with level pressure difference, make fish-egg with The flow of drainpipe 3 enters net cage 74 from bottom, and fish-egg is stranded in net cage 74, and flow enters egg-collecting tank 1 by 74 mesh sheet of net cage, Promoting production pond 2 is entered by stripping tube 6 and immersible pump 5 again, forms flow and vortex, while also completing entire water cycle.
The 76 lower section outer of net cover sews nylon rope 77, for net cover 76 to be fixed on 3 nozzle of drainpipe.It is described Net cage frame be process by moso bamboo, including be fixed into rectangular two net cage framves long side 71 and two net cage frame broadsides 72, And perpendicular to rectangular four net cage framves stabilizer blade 73.Net cage frame long side 71, net cage frame broadside 72 and the net cage The length of frame stabilizer blade 73 is respectively 135cm, 90cm, 60cm.The net cage 74 is processed by 30 mesh screens, and length and width are a height of 100×60×40cm.The fiber cloth of net cover 76 or it is really cool be made, diameter 20cm, high 35cm.It should be noted that Depending on the size of the net cage 74 and net cage frame can be with 1 size of egg-collecting tank.
The method that a kind of recirculated water of 2 present invention of embodiment promotes America hilsa herring parent mating fertilization
A kind of recirculated water of the present invention promotes America hilsa herring parent to mate the method for fertilization, is promoted production cyclic system by America hilsa herring parent The structure of system, the parent that promotes production put preceding preparation in a suitable place to breed, the parent that promotes production selects and puts in a suitable place to breed, parent promotes production, and mating is fertilized, fish-egg is collected, parent Cleaning and supplement and etc. composition, specifically include:
1, America hilsa herring parent promotes production the structure of the circulatory system:America hilsa herring parent is built according to embodiment 1 to promote production the circulatory system; On the top for the circulatory system of promoting production setting bow-shaped ring top, top covers 2~3 layers of shade film, ensures the intensity of illumination range on daytime 300~500Lux;
2, the parent that promotes production puts preceding preparation in a suitable place to breed:Before the parent that promotes production puts in a suitable place to breed, disappear to promoting production pond and egg-collecting tank and auxiliary device Poison gives whole system water filling, and full pool spilling head after being dissolved with 10PPm calcium hypochlorites opens air lift tube valve, makes the water in whole system Cycle is walked 1~2 hour, and after then impregnating 24 hours, draining is rinsed well, is dried 3~4 days and is reused, parent puts preceding 2~3 in a suitable place to breed Its water inlet, with water by pond level-one precipitation, cement pit two-stage precipitation and air energy unit temperature adjustment, 80 mesh sieve tulles mistakes of intaking Filter after water inlet, using full pool spilling head after the dodium thiosulfate dissolving of 1~2PPm, opens air lift cycle and nanotube inflation, cycle 24 is small Shi Fangke is used, and water temperature maintains 18~19 DEG C.
3, the parent that promotes production selects and puts in a suitable place to breed:To at the beginning of 5 months~6 months at the beginning of, at this time can be in the hilsa herring parent's reinforced cultivating pond of America It selects and promotes production with parent, parent's reinforced cultivating pond is simple plastic greenhouse cement pit, selects the requirement for the parent that promotes production:Raun postabdomen is swollen Big and soft, cloacal aperture is micro- red, some gently press abdomen not flow ovum;Milter, it is light that cloacal aperture is pressed to have a small amount of sperm to flow out, and meet water not It dissipates;In election process, parent point male and female are respectively put into net cage and temporarily support, and cage size is long 2.0m × wide 1.2m × high 0.5m, net The mesh sheet of case is the leather strap net that mesh is 2 × 3mm, and temporarily foster density is 10~15 tails of raun/case, and 20~30 tails of milter/case are temporarily supported Time is no more than 30 minutes;It is transported using plastic cylinder and is put into promoting production pond, the diameter 32cm of plastic cylinder, height 35cm, bucket 28 liters of capacity, 15 liters of installation of water in bucket when transporting fish, i.e., at the 1/2 of bucket, when transport, every barrel of raun puts 1 tail, and milter bucket puts 2~3 Tail;Entire select will load haulage time every time and be no more than 15 minutes with operation in transportational process softly not from water;Promote production parent Breeding density is 0.5~1.5 tail/m2, sex ration 1:1.6~1:2.0;
4, parent promotes production to mate and be fertilized:After parent enters promoting production pond, to keep absolutely quiet around, 24 hours it is continuous not between Nanometer inflation and air lift cycle, evening 20 are opened in disconnection:Morning 10 00~next day:00 period ON cycle immersible pump promotes cycle Pressure makes promoting production pond sum aggregate ovum water potential difference reach 20~30cm so that the water of promoting production pond passes through 4 cun of drainpipes to egg-collecting tank Flow rate of water flow reaches 20m3/ h forms vortex above promoting production pond center drain;Commercial feed is not fed during promoting production, daily Change water afternoon 1 time, every time about 10~15%, water operation is specifically changed to open the drain valve of egg-collecting tank, and the water level of egg-collecting tank is made to drop It is at half, is pond water containing Micro Algae, transparency is 20~30cm with water then with 80 mesh sieve tulles filtered water inlets Source is cooled to 16~18 DEG C by cement pit aeration and sedimentation and air energy unit, with the water temperature that keeps promoting production for 19.0~20.0 DEG C, Counteracting promote production the circulatory system caused by temperature high water temperature rise;Dead individuals are removed in time, in preventing dead individuals from blocking Heart discharge outlet;
5, fish-egg is collected:America hilsa herring parent mates fertilization time generally 5:00~8:00, collect fish-egg general 10:00~ 11:00, before collecting fish-egg, first the mesh sheet surrounding of cleaning collection ovum net cage, removes the rubbish for being attached to mesh sheet, then lifts net cage, Net cage bottom is set to be suspended from 5~10cm of the water surface or less, half wet condition of fish-egg sunk to the bottom, with the soft bolting silk circle diddle-net diddle-net case of 24 mesh The fish-egg of bottom, collection is mingled with scale and water body deposit, needs to clean and detach, first with the soft bolting silk circle diddle-net point of 24 mesh A small amount of repeatedly rinsing fish-egg, removes water body deposit;6 × 6mm net the sievings of mesh specification are used again, reject the excrement of scale and forming Just, then with hatchery is moved on to after beaker amount fish-egg volumetric enumeration, fish-egg cleaning and cleaning use the water of promoting production pond with water.
6, parent's cleaning and supplement:Parent was cleared up every 7~10 days 1 time, and cleaning parent Shi Huanshui 1/2 changes water water source and wants It seeks common ground and changes water daily, but the temperature difference for changing to the water temperature and former water temperature of water is less than 1 DEG C;The parent for having neither part nor lot in mating fertilization is stayed Pond, postpartum parent move into reinforced cultivating pond, cultivate again;In addition new parent is supplemented to promoting production pond.
Embodiment 3
Using the method for the promote production circulatory system and embodiment 2 of embodiment 1, through in Shanghai Aquatic Product Institute Fengxian base Experiment, in mid-May, 2017 to mid-June America hilsa herring parent's recirculated water promote production fertilization obtain good result, add up obtain by 19.47 ten thousand, smart ovum.
The preferred embodiment of the invention is illustrated above, but the invention be not limited to it is described Embodiment, those skilled in the art can also make various equivalent under the premise of without prejudice to the invention spirit Modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.

Claims (8)

1. a kind of method that recirculated water promotes America hilsa herring parent mating fertilization, which is characterized in that include the following steps:
A) America hilsa herring parent promotes production the structure of the circulatory system:The parent promotes production the circulatory system, including adjacent egg-collecting tank and Promoting production pond, the egg-collecting tank are rectangle cement pit, and collection ovum net cage is equipped in the egg-collecting tank;The promoting production pond is just Square water mud sump, the promoting production pond vertical section are infundibulate, and pool aottom center is equipped with discharge outlet, and run in water pipe below discharge outlet, The promoting production pond is connected by drainpipe with the collection ovum net cage lower end in egg-collecting tank;The egg-collecting tank close to promoting production pond one Side is equipped with air lift circulation pipe and immersible pump;
B) parent that promotes production puts preceding preparation in a suitable place to breed:It before the parent that promotes production puts in a suitable place to breed, carries out disinfection, notes to promoting production pond and egg-collecting tank and auxiliary device It is used after water cycle, water temperature maintains 18~19 DEG C;
C) parent that promotes production selects and puts in a suitable place to breed:At the beginning of 5 months~at the beginning of 6 months, select to promote production and be put into promoting production pond with America hilsa herring parent, promote production parent Breeding density is 0.5~1.5 tail/m2, sex ration 1:1.6~1:2.0;
D) parent promotes production to mate and be fertilized:It after parent enters promoting production pond, to keep absolutely quiet around, continuously uninterruptedly open within 24 hours Nanometer inflation and air lift cycle are opened, commercial feed is not fed during promoting production, changes water every afternoon 1 time, every time about 10~15%, it protects It is 19.0~20.0 DEG C to hold water temperature of promoting production;
E) fish-egg is collected:Collect fish-egg general 10:00~11:The soft bolting silk circle diddle-net diddle-net bottom portion of 00,24 mesh, it is a small amount of multiple Fish-egg is rinsed, water body deposit is removed;
F) parent's cleaning and supplement:Parent was cleared up every 7~10 days 1 time, cleaning parent Shi Huanshui 1/2;Have neither part nor lot in mating by The parent of essence stays pond, postpartum parent to move into reinforced cultivating pond, cultivate again;In addition new parent is supplemented to promoting production pond.
2. the method that recirculated water according to claim 1 promotes America hilsa herring parent mating fertilization, which is characterized in that described America hilsa herring parent promotes production the top setting bow-shaped ring top of the circulatory system, and top covers 2~3 layers of shade film;Ensure the illumination on daytime 300~500Lux of strength range.
3. the method that recirculated water according to claim 1 promotes America hilsa herring parent mating fertilization, which is characterized in that described Collection ovum net cage in egg-collecting tank, including cuboid net cage and the net cage frame for fixed cage, the net cage pass through net cage Buddhist nun Dragon rope is fixed on net cage frame, and the net cage bottom center opens circular hole, sews the cylindrical shape of a downward projection of both ends open Net cover, the net cover make to communicate with the external world inside net cage by the circular hole of net cage bottom center.The collection ovum net cage uses When, collection ovum net cage is placed in egg-collecting tank, promoting production pond is connected by drainpipe with the collection ovum net cage lower end in egg-collecting tank.
4. the method that recirculated water according to claim 1 promotes America hilsa herring parent mating fertilization, which is characterized in that described It in step b, before the parent that promotes production puts in a suitable place to breed, carries out disinfection to promoting production pond and egg-collecting tank and auxiliary device, gives whole system water filling, use Full pool spilling head after the dissolving of 10PPm calcium hypochlorites, opens air lift tube valve, so that water in whole system is recycled 1~2 hour, then After impregnating 24 hours, draining is rinsed well, is dried 3~4 days and is reused, and parent, which puts in a suitable place to breed first 2~3 days, intakes, with water by pond Level-one precipitation, cement pit two-stage precipitation and air energy unit temperature adjustment, water inlet 80 mesh sieve tulles filtering, after water inlet, using 1~ Full pool spilling head after the dodium thiosulfate dissolving of 2PPm, opens air lift cycle and nanotube inflation, and cycle can use for 24 hours, water temperature dimension It holds at 18~19 DEG C.
5. the method that recirculated water according to claim 1 promotes America hilsa herring parent mating fertilization, which is characterized in that described It in step c, selects and is promoted production with parent in the hilsa herring parent's reinforced cultivating pond of America, parent's reinforced cultivating pond is simple plastic greenhouse cement Pond;Select the requirement for the parent that promotes production:Raun postabdomen expands and soft, and cloacal aperture is micro- red, some gently press abdomen not flow ovum;It is male Fish, it is light that cloacal aperture is pressed to have a small amount of sperm to flow out, and meet water and do not dissipate;In election process, parent point male and female are respectively put into net cage and temporarily support, Cage size is long 2.0m × wide 1.2m × high 0.5m, and the mesh sheet of net cage is the leather strap net that mesh is 2 × 3mm, and temporarily foster density is 10~15 tails of raun/case, 20~30 tails of milter/case, temporarily the foster time was no more than 30 minutes;It is put into and is promoted production using plastic cylinder transport Pond, the diameter 32cm of plastic cylinder, height 35cm, 28 liters of the capacity of bucket, 15 liters of installation of water in bucket when transporting fish, i.e., at the 1/2 of bucket, When transport, every barrel of raun puts 1 tail, and milter bucket puts 2~3 tails;Entire select will be softly from water, every time with operation in transportational process Haulage time is loaded to be no more than 15 minutes.
6. the method that recirculated water according to claim 1 promotes America hilsa herring parent mating fertilization, which is characterized in that described In step d, evening 20:Morning 10 00~next day:00 period ON cycle immersible pump promotes circulating pressure, makes promoting production pond sum aggregate Ovum water potential difference reaches 20~30cm so that the water of promoting production pond reaches 20m by the flow rate of water flow of drainpipe to egg-collecting tank3/ h, Vortex is formed above promoting production pond center drain.
7. the method that recirculated water according to claim 1 promotes America hilsa herring parent mating fertilization, which is characterized in that described In step d, water operation is changed to open the drain valve of egg-collecting tank, so that the water level of egg-collecting tank is reduced half, then with 80 mesh sieve tulles Filtered water inlet is pond water source containing Micro Algae, transparency is 20~30cm with water, by cement pit aeration and sedimentation and sky Gas energy machine group is cooled to 16~18 DEG C, and with the water temperature that keeps promoting production for 19.0~20.0 DEG C, counteracting promotes production the circulatory system because of temperature height Caused by water temperature rise;Dead individuals are removed in time, to prevent dead individuals from blocking center drain.
8. the method that recirculated water according to claim 1 promotes America hilsa herring parent mating fertilization, which is characterized in that described In step e, before collecting fish-egg, first the mesh sheet surrounding of cleaning collection ovum net cage, removes the rubbish for being attached to mesh sheet, then lifts net Case makes net cage bottom be suspended from 5~10cm of the water surface or less, and half wet condition of fish-egg sunk to the bottom is copied with the soft bolting silk circle of 24 mesh The fish-egg of net cage bottom, collection is mingled with scale and water body deposit, needs to clean and detach, is first copied with the soft bolting silk circle of 24 mesh The a small amount of repeatedly rinsing fish-egg of net point, removes water body deposit;6 × 6mm net the sievings of mesh specification are used again, reject scale and forming Excrement, then with hatchery is moved on to after beaker amount fish-egg volumetric enumeration, fish-egg cleaning and cleaning use the water of promoting production pond with water.
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Publication number Priority date Publication date Assignee Title
CN109924148A (en) * 2019-03-19 2019-06-25 苏州鱼之源生物科技有限公司 A kind of cultural method of hilsa
CN110419471A (en) * 2019-09-05 2019-11-08 中国水产科学研究院淡水渔业研究中心 A kind of method of wild Burma hilsa herring artificial insemination and incubating oosperm
CN110432192A (en) * 2019-09-10 2019-11-12 上海市水产研究所(上海市水产技术推广站) A method of extending the America hilsa herring artificial propagation time
CN112273309A (en) * 2020-10-30 2021-01-29 刘伟 High-efficient water-saving feed delivery device for large aquarium fish culture box

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CN105379650A (en) * 2015-11-17 2016-03-09 上海市水产研究所 Method for obtaining batch American shad fertilized ova
CN205106022U (en) * 2015-09-29 2016-03-30 中国水产科学研究院淡水渔业研究中心 Loach parent hatchery system

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CN205106022U (en) * 2015-09-29 2016-03-30 中国水产科学研究院淡水渔业研究中心 Loach parent hatchery system
CN105379650A (en) * 2015-11-17 2016-03-09 上海市水产研究所 Method for obtaining batch American shad fertilized ova

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109924148A (en) * 2019-03-19 2019-06-25 苏州鱼之源生物科技有限公司 A kind of cultural method of hilsa
CN110419471A (en) * 2019-09-05 2019-11-08 中国水产科学研究院淡水渔业研究中心 A kind of method of wild Burma hilsa herring artificial insemination and incubating oosperm
CN110432192A (en) * 2019-09-10 2019-11-12 上海市水产研究所(上海市水产技术推广站) A method of extending the America hilsa herring artificial propagation time
CN112273309A (en) * 2020-10-30 2021-01-29 刘伟 High-efficient water-saving feed delivery device for large aquarium fish culture box
CN112273309B (en) * 2020-10-30 2022-10-11 聊城市敏锐信息科技有限公司 High-efficient water-saving feed delivery device for large aquarium fish culture box

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