CN104304101B - The factorial seedling-culturing method of Hemi fusus tuba (Gmelin) - Google Patents
The factorial seedling-culturing method of Hemi fusus tuba (Gmelin) Download PDFInfo
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Abstract
nullThe invention discloses the factorial seedling-culturing method of Hemi fusus tuba (Gmelin)，Gather stalwartness、Grossness、Bigger、Heavier close spiral shell，Add plastic crate temporary supporting in Along Zhejiang Coast bay with circular mesh bag to wait to produce，Natural propagation obtains egg pod，Egg pod is positioned in the plastic screen basket floating over hatchery，In suitable water temperature、Salinity、pH、30 ~ 60 d are hatched under egg pod density，Sunshade is needed during front 20 d hatching，Then 2～3 d hatchery direct sunlight，Then hatchery sunshade again，Incubation rate can be improved，Incubation rate is about 90%，The young spiral shell simultaneously hatched reduces mortality rate，Young spiral shell moves in the cultivation pond covering with benthic diatom at the bottom of pond with pool wall and cultivates，In suitable water temperature、Salinity、pH、Young spiral shell density、Throw something and feed band shell Sinonovacula constricta meat、Change water、Under the conditions of turning over pond etc.，Cultivate more than 20 day，Just can emerge，Incubation rate reaches more than 80%，So can go out young spiral shell with large scale cultivating，Be conducive to naturally stocking，Recover Hemi fusus tuba (Gmelin) resource.
Description
Technical field
The present invention relates to Hemi fusus tuba (Gmelin) breed, be specifically related to the factorial seedling-culturing method of Hemi fusus tuba (Gmelin).
Background technology
Hemi fusus tuba (Gmelin) (Hemifusus tuba Gmelin) it is under the jurisdiction of Mollusca (Mollusca)
, Gastropoda (Gastropoda), Caenogastropoda (Neogastropoda), Kui Luo section (Galeodidae)
, angle spiral shell genus (Hemifusus), for the economical gastropod in shallow sea, it is mainly distributed on coastal 11～the ooze of 40m and the seabed of argillo arenaceous of Zhejiang Province, China, Fujian, Guangxi, Guangdong and Hainan each province, its individuality is big, delicious, nutritious, there is nourishing effects, and glycoprotein has significant active anticancer in muscle, the expensive seafood of generic name.Pollute due to sea area in recent years and the excessive seizure of the mankind, cause Hemi fusus tuba (Gmelin) resource the most exhausted.Research to Hemi fusus tuba (Gmelin) at present is concentrated mainly on natural Reproductive development and artificial ripening etc., not disclosed to large-scale industrialized nursery.
Summary of the invention
The technical problem to be solved is to provide the factorial seedling-culturing method of a kind of Hemi fusus tuba (Gmelin), can go out young spiral shell, beneficially naturally stocking with large scale cultivating, recover Hemi fusus tuba (Gmelin) resource.
The present invention solves the technical scheme that above-mentioned technical problem used: the factorial seedling-culturing method of Hemi fusus tuba (Gmelin), and step is as follows:
(1) late March ~ early April, stalwartness is gathered at Along Zhejiang Coast, grossness, spiral shell shell height at least 12cm, the close spiral shell of body weight at least 150g, in described parent's spiral shell, female spiral shell is 1:2 ~ 3 with the ratio of male spiral shell, parent's spiral shell is put in the circular mesh bag of a diameter of 70 ~ 80 cm, the aperture of described circular mesh bag is 1 ~ 2cm, in described circular mesh bag, the gross weight of parent's spiral shell is 14 ~ 16 kg, tighten bag mouth, circular mesh bag is put into the plastic crate of high 50 ~ 60 cm, excellent in water quality, salinity 24 ~ 33, water temperature 15 ~ 20 DEG C, in stormy waves less Along Zhejiang Coast bay, it is hung in plastic crate with the rope of 2 ~ 4 m to cut down to support temporarily on frame and waits to produce, natural propagation obtains egg pod；Egg pod originates in be easy in plastic crate collect；
(2) mid-May ~ early June, the most lightly the egg pod of firm output 1 ~ 2d is scraped with thin blade, putting in the plastic screen basket of diameter 60 cm, high 20 cm, each plastic screen basket places egg pod 40 ~ 50, is floated on by plastic screen basket in the hatchery of the depth of water 1 ~ 1.5 m, limpid in water quality, pollution-free, water temperature 18 ~ 30 DEG C, salinity is 20 ~ 30, pH 7.8 ~ 8.1, hatches 30 ~ 60 under the conditions of continuous charge
d；Water temperature 21 ~ 30 DEG C, preferable during salinity 25 ~ 27；
(3) hatching changes whole sea water once after 3 ~ 7 d, every the egg capsule that 2～3d cleanings are downright bad, during front 20 d hatching, hatchery sunshade, and then 2～3 d hatchery direct sunlight hatching, then hatchery sunshade again hatching；Direct sunlight 2～3 d, in hatchery, the young spiral shell of the meeting of egg pod surface silicon growth layer algae, beneficially incubation of membrane can directly lick the diatom on growth egg pod surface, is greatly improved incubation rate；
(4) start after hatching 30 d to hatch young spiral shell, move into young spiral shell every other day to cover with pool wall at the bottom of pond in the cultivation pond of benthic diatom and cultivate, cultivate deep 0.8 ~ 1 m of water, water temperature is 18 ~ 32 DEG C, salinity is 15 ~ 30, pH 7.8 ~ 8.1, continuous charge, cultivating density during 1 ~ 13 young spiral shell of age in days is 5000 ~ 7000/m2, cultivating density during 14 ~ 20 young spiral shell of age in days is 3000 ~ 4000/m2, 21 ~ 30 young spiral shells of age in days, cultivating density is 1000 ~ 2000/m2；Water temperature is 22 ~ 28 DEG C, and salinity is preferable when being 25 ~ 30；
(5) cultivation plays band shell Sinonovacula constricta meat of throwing something and feeding every day on the 3rd day, and every day, band shell Sinonovacula constricta meat daily ration, feeding quantity was the 20～40% of young spiral shell gross weight, and a point morning and evening respectively once throws something and feeds, change water every day 1 time, quantity of exchanged water 100%, removes residue dirt when changing water, and Luo Ke higher primary school is before 1 cm, pond is turned over once every 10 d, after high 1 cm of spiral shell shell, turn over pond once every 7 ~ 8 d, patrol pond every day 3 ~ 4 times, entering in water with broom by climbing the young spiral shell brush from the water surface, the high 1.0 ~ 1.5cm of spiral shell shell just can be emerged.Turning over pond makes it be uniformly distributed, and prevents young spiral shell from killing each other, and young spiral shell brush enters to be possible to prevent young spiral shell to be dried up by the sun in water.
nullCompared with prior art，It is an advantage of the current invention that the factorial seedling-culturing method of Hemi fusus tuba (Gmelin)，Gather stalwartness、Grossness、Bigger、Heavier close spiral shell，Add plastic crate temporary supporting in Along Zhejiang Coast bay with circular mesh bag to wait to produce，Natural propagation obtains egg pod，Egg pod is positioned in the plastic screen basket floating over hatchery，In suitable water temperature、Salinity、pH、30 ~ 60 d are hatched under egg pod density，Sunshade is needed during front 20 d hatching，Then 2～3 d hatchery direct sunlight，Then hatchery sunshade again，Incubation rate can be improved，Incubation rate is about 90%，The young spiral shell simultaneously hatched reduces mortality rate，Young spiral shell moves in the cultivation pond covering with benthic diatom at the bottom of pond with pool wall and cultivates，In suitable water temperature、Salinity、pH、Young spiral shell density、Throw something and feed band shell Sinonovacula constricta meat、Change water、Under the conditions of turning over pond etc.，Cultivate more than 20 day，Just can emerge，Incubation rate reaches more than 80%，So can go out young spiral shell with large scale cultivating，Be conducive to naturally stocking，Recover Hemi fusus tuba (Gmelin) resource.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
The factorial seedling-culturing method of Hemi fusus tuba (Gmelin), step is as follows:
(1) late March ~ early April, stalwartness is gathered at Along Zhejiang Coast, grossness, spiral shell shell height at least 12cm, the close spiral shell of body weight at least 150g, in parent's spiral shell, female spiral shell is 1:2 ~ 3 with the ratio of male spiral shell, parent's spiral shell is put into the circular mesh bag of a diameter of 70 ~ 80 cm, the aperture of circular mesh bag is 1 ~ 2cm, in circular mesh bag, the gross weight of parent's spiral shell is 14 ~ 16 kg, tighten bag mouth, circular mesh bag is put into the plastic crate of high 50 ~ 60 cm, excellent in water quality, salinity 24 ~ 33, water temperature 15 ~ 20 DEG C, in stormy waves less Along Zhejiang Coast bay, it is hung in plastic crate with the rope of 2 ~ 4 m to cut down to support temporarily on frame and waits to produce, natural propagation obtains egg pod；Egg pod originates in be easy in plastic crate collect；Along Zhejiang Coast enters idiophase in 4 middle of the month, and May is breeding period, and the middle ten days and the last ten days in June, stopping was laid eggs, and each female spiral shell is laid eggs 2 ~ 3 times, 10 ~ 80, capsule of every time laying eggs (average 20), and each egg capsule finally can hatch 10 ~ 30, young spiral shell (average 19)；
(2) mid-May ~ early June, the most lightly the egg pod of firm output 1 ~ 2d is scraped with thin blade, putting in the plastic screen basket of diameter 60 cm, high 20 cm, each plastic screen basket places egg pod 40 ~ 50, is floated on by plastic screen basket in the hatchery of the depth of water 1 ~ 1.5 m, limpid in water quality, pollution-free, water temperature 18 ~ 30 DEG C, salinity is 20 ~ 30, pH 7.8 ~ 8.1, hatches 30 ~ 60 under the conditions of continuous charge
d；Water temperature 21 ~ 30 DEG C, preferable during salinity 25 ~ 27；Sea water, through precipitation, sand filtration, reaches the limpid requirement of water quality；
(3) hatching changes whole sea water once after 3 ~ 7 d, and every the egg capsule that 2～3d cleanings are downright bad, during front 20 d hatching, hatchery sunshade, then 2～3 d hatchery direct sunlight hatching, then hatchery sunshade again hatching, incubation rate is about 90%；Direct sunlight 2～3 d, in hatchery, the young spiral shell of the meeting of egg pod surface silicon growth layer algae, beneficially incubation of membrane can directly lick the diatom on growth egg pod surface, is greatly improved incubation rate；The egg capsule ruptured, nutritional solution in egg capsule flows out, and easily breed bacteria is gone mouldy, cause the ovum in egg capsule cannot normal development, death occurs；The egg capsule of the most each pond hatching is all selected on one side every 2～3d, and rejecting is gone mouldy, downright bad egg capsule, to avoid cross infection；
(4) start after hatching 30 d to hatch young spiral shell, move into young spiral shell every other day to cover with pool wall at the bottom of pond in the cultivation pond of benthic diatom and cultivate, cultivate deep 0.8 ~ 1 m of water, water temperature is 18 ~ 32 DEG C, salinity is 15 ~ 30, pH 7.8 ~ 8.1, continuous charge, cultivating density during 1 ~ 13 young spiral shell of age in days is 5000 ~ 7000/m2, cultivating density during 14 ~ 20 young spiral shell of age in days is 3000 ~ 4000/m2, 21 ~ 30 young spiral shells of age in days, cultivating density is 1000 ~ 2000/m2；Water temperature is 22 ~ 28 DEG C, and salinity is preferable when being 25 ~ 30；Benthic diatom can be cultivated inoculation in first 5 ~ 10 days at young spiral shell and cultivate；
(5) cultivation plays band shell Sinonovacula constricta meat of throwing something and feeding every day on the 3rd day, and every day, band shell Sinonovacula constricta meat daily ration, feeding quantity was the 20～40% of young spiral shell gross weight, and a point morning and evening respectively once throws something and feeds, change water every day 1 time, quantity of exchanged water 100%, remove residue dirt when changing water, Luo Ke higher primary school is before 1 cm, turn over pond once every 10 d, after high 1 cm of spiral shell shell, turn over pond once every 7 ~ 8 d, patrol pond every day 3 ~ 4 times, entering in water with broom by climbing the young spiral shell brush from the water surface, the high 1.0 ~ 1.5cm of spiral shell shell just can be emerged, and incubation rate reaches more than 80%.Turning over pond makes it be uniformly distributed, and prevents young spiral shell from killing each other, and young spiral shell brush enters to be possible to prevent young spiral shell to be dried up by the sun in water.
Claims (2)
1. the factorial seedling-culturing method of Hemi fusus tuba (Gmelin), it is characterised in that step is as follows:
(1) late March～early April, it is not less than 12cm, body weight at Along Zhejiang Coast collection stalwartness, grossness, spiral shell shell height
Not less than the close spiral shell of 150g, in described parent's spiral shell, female spiral shell is 1:2～3 with the ratio of male spiral shell, and parent's spiral shell is put into a diameter of 70～80
In the circular mesh bag of cm, the aperture of described circular mesh bag is 1～2cm, and in described circular mesh bag, the gross weight of parent's spiral shell is
14～16kg, tighten bag mouth, circular mesh bag is put into the plastic crate of high 50～60cm, excellent in water quality, salinity 24～33,
Water temperature 15～20 DEG C, in stormy waves less Along Zhejiang Coast bay, plastic crate is hung in cut down and supports temporarily on frame by the rope with 2～4m
Waiting to produce, natural propagation obtains egg pod；
(2) mid-May～early June, the most lightly the egg pod of firm output 1～2d is scraped with thin blade, put into straight
Footpath 60cm, high 20cm plastic screen basket in, each plastic screen basket places egg pod 40～50, is floated on by plastic screen basket
In the hatchery of the depth of water 1～1.5m, limpid in water quality, pollution-free, water temperature 18～30 DEG C, salinity is 20～30, pH 7.8～8.1,
30～60d are hatched under the conditions of continuous charge；
(3) during hatching, changing whole sea water once every 3～7d, every the egg capsule that 2～3d cleanings are downright bad, front 20d is hatched
Time, hatchery sunshade, then 2～3d hatchery direct sunlight hatching, then hatchery sunshade again hatching；
(4) start to hatch young spiral shell after hatching 30d, young spiral shell every other day is moved into the training covering with benthic diatom at the bottom of pond with pool wall
Educating in pond and cultivate, cultivate water deep 0.8～1m, water temperature is 18～32 DEG C, and salinity is 15～30, pH 7.8～8.1, even
Continuous inflation, the cultivation density of the 1～13 young spiral shells of age in days is 5000～7000/m2, the cultivation density of the 14～20 young spiral shells of age in days is
3000～4000/m2, the cultivation density of the 21～30 young spiral shells of age in days is 1000～2000/m2；
(5) cultivation plays band shell Sinonovacula constricta meat of throwing something and feeding every day on the 3rd day, and every day, band shell Sinonovacula constricta meat daily ration, feeding quantity was young spiral shell gross weight
20～40%, a point morning and evening respectively once throws something and feeds, and changes water every day 1 time, quantity of exchanged water 100%, removes residue dirt when changing water,
Pond, before 1cm, is turned over once every 10d by Luo Ke higher primary school, after spiral shell shell height 1cm, turns over pond once every 7～8d, and every day patrols
Pond 3～4 times, enter in water with broom by climbing the young spiral shell brush from the water surface, and spiral shell shell high 1.0～1.5cm just can be emerged.
2. the factorial seedling-culturing method of the Hemi fusus tuba (Gmelin) described in claim 1, it is characterised in that in step (2), water temperature is
21～30 DEG C, salinity is 25～27；In step (4), water temperature is 22～28 DEG C, and salinity is 25～30.
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| CN107960352B (en) * | 2017-12-07 | 2021-08-27 | 广东海洋大学 | Method for cultivating young hemifusus tuba in artificial breeding of hemifusus tuba |
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| CN101496500B (en) * | 2009-01-21 | 2011-01-26 | 广东海洋大学 | Technique for cultivating Hemifusus tuba |
| CN101502244A (en) * | 2009-01-21 | 2009-08-12 | 广东海洋大学 | Artificial ripening cultivation method for Parent snail of Hemifusus tuba Gmelin |
| CN102100319B (en) * | 2011-01-17 | 2013-01-30 | 宁波大学 | Compound feed used for culturing hemifusus tuba gmelin |
| CN102144582B (en) * | 2011-02-28 | 2013-01-30 | 广西大学 | Method for cultivating Hemifusus tuba with net cage in hanging way |
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