CN101946720B - Artificial breeding method for tuba false fusus - Google Patents

Artificial breeding method for tuba false fusus Download PDF

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Publication number
CN101946720B
CN101946720B CN2010102475628A CN201010247562A CN101946720B CN 101946720 B CN101946720 B CN 101946720B CN 2010102475628 A CN2010102475628 A CN 2010102475628A CN 201010247562 A CN201010247562 A CN 201010247562A CN 101946720 B CN101946720 B CN 101946720B
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spiral shell
fusus
basket
false
tuba
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CN101946720A (en
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唐保军
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East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
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East China Sea Fishery Research Institute Chinese Academy of Fishery Sciences
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    • 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

Abstract

The invention relates to an artificial breeding method for tuba false fusus, which comprises the following steps of: on the basis of investigating tuba false fusus resources along the coast of Hainan and reproductive biology, finding out the thriving propagation season of the tuba false fusus, and catching parent tuba false fusus in the season; putting healthy adult tuba false fusus into a nursery pond for intensified breeding, and optimizing breeding conditions such as water flow, illumination, water temperature, and salinity; after the tuba false fusus is mated and lays eggs, cutting off an egg capsule, and transferring to an incubation basket for flowing water breeding; after young tuba false fusus is hatched, transferring to a breeding basket, feeding concentrated chlamydomonas in first 4 to 6 days, and then feeding fresh clam and Sinonovacula constricta; when the young tuba false fusus grows to 2.0-2.5cm, dividing the young tuba false fusus; and when the young uba false fusus grows to about 4.0cm in the breeding basket, entering a culture stage. Based on the reproductive biological process of the tuba false fusus, the method realizes indoor artificial breeding of the tuba false fusus, shortens the artificial breeding cycle, is suitable for mass production, and has the advantages of simpleness, practicability, convenient operation, low production cost, and high survival rate of the bred tuba false fusus.

Description

The artificial raise seedling method of a kind of thin angle spiral shell
Technical field
The invention belongs to the seed rearing technology of aquaculture, particularly relate to the artificial raise seedling method of a kind of thin angle spiral shell.
Background technology
Thin angle spiral shell (Hemifusus termatamus); English name Tuba false fusus belongs to Mollusca (Mollusca), Gastropoda (Gastropoda), Caenogastropoda (Neogastropoda), Buccinacea (Buccinacea), helmet spiral shell section (Melongenidae).Thin angle spiral shell becomes the spiral shell individuality bigger, and shell length reaches as high as more than 30 centimetre, body weight more than 1300 grams.Its abdominal foot portion meat is plump, and nutritious, delicious flavour is a high-grade precious marine product always, and the market price one is to high.Thin angle spiral shell mainly is distributed in the argillo arenaceous seabed of rice to more than the 70 meters depth of waters surplus China's southeastern coast ten, and vegetative period is long, and stock number is few, and need just can be caught with trawlnet.Along with expanding economy and growth in the living standard, people constantly increase the demand of thin angle spiral shell, and it is increasing to adopt the amount of catching, and cause resource day by day exhausted.Therefore, the exploitation of thin angle spiral shell artificial breeding technique not only can be through the propagation maintenance Sustainable utilization of resources of releasing; And, through artificial breeding, can increase the breed new varieties; Enlarge culture resources, promote the development of thin angle spiral shell aquaculture, alleviate the relation between supply and demand in market.
Thin angle spiral shell is still undeveloped breed new varieties, and its research has then just been begun starting, and the domestic and international research report is less.At home, permitted the experimental study that article, Feng Yongqin, Guo Ping Jian etc. have carried out thin angle spiral shell artificial breeding, but since also insufficient to its ecology and reproductive habit grasp, do not see system so far as yet or the artificial breeding report of necessarily breeding quantity is arranged.
Therefore, the present invention plans to build the artificial raise seedling method and the know-how of the upright thin angle of a kind of foundation spiral shell reproductive biology characteristic.
Summary of the invention
Technical problem to be solved by this invention provides the artificial raise seedling method of a kind of thin angle spiral shell, the present invention is based on thin angle spiral shell reproductive biology process, has realized that the indoors artificial of thin angle spiral shell is grown seedlings, and has shortened the artificial breeding cycle, and can carry out large-scale production; Seedling-cultivating method is simple, practical, and is easy to operate, and production cost is low, and the thin angle spiral shell survival rate after growing seedlings is high.
The artificial raise seedling method of a kind of thin angle of the present invention spiral shell comprises:
(1) adopts in good time and catch close spiral shell
In coastal area, Hainan, be the April in November to the second in every year year the mating season of thin angle spiral shell, and the Sheng phase is December~second year January, and ocean temperature is 21~26 ℃;
(2) close spiral shell reinforced cultivating
Choosing the body spiral shell of growing up in the thin angle of healthy adult of 20cm puts into nursery pond and carries out reinforced cultivating, nurturing period, the fresh clam class bait of throwing something and feeding; With black mesh grid control illumination, slowly inflation has just had bubble to emerge with inflation sand head and has been advisable; Reduce noise jamming, the timely adjustment daily ration, feeding quantity is a standard to eat up in 3 hours as far as possible; Change water 1/2 every day and clear up residual bait and ight soil, breeding density is controlled at 4~5 spiral shell/m 3Water body;
Through 15 days~1 month reinforced cultivating, the thin angle spiral shell of gonadal maturation carried out mate and oviposit (capsule), should reduce illumination and sound interference during mating; During the mate and oviposit, change flowing water into and cultivate, discharge is 3~5L/ minute, after laying eggs, carefully downcuts along the egg capsule base portion with scalpel, changes in the hatching basket and cultivates;
(3) egg capsule hatching
Egg capsule is placed in the square hatching basket, places the hatchery to hatch, 6m is used in the hatchery 3Rectangle fiberglass pond, depth of water 1m, slowly inflation has just had bubble to emerge with inflation sand head and has been advisable, guarantees hatchery water quality, adopt the flowing water hatching, and keeps the inside and outside water body exchange of incubation vessel, and discharge is 3~5L/ minute;
Control illumination between the incubation period, daytime, seawater salinity was controlled at 28~36 with black mesh grid shading, and the hatching water temperature remains on 22~26 ℃, reduces the fluctuation of temperature, salinity as far as possible;
Under these conditions, after cultivating in 50~60 days, young spiral shell goes out from egg capsule top rupture of membranes;
(4) young spiral shell is cultivated
The young spiral shell of firm membrane is transferred in the cultivation basket, places 6m 3Rectangle fiberglass is cultivated in the pond, cultivates the basket bottom and covers with 60 purpose bolting silks, and the depth of water adds to 1m, adopts flowing water, and discharge is 3~5L/ minute, and cultivating density is 500~600 young spiral shell/baskets;
Throwing something and feeding in preceding 4~6 days concentrates the unit cell algae, throws something and feeds every day once, and each cultivates basket 1~2 gram of at every turn throwing something and feeding; The fresh clam class bait of throwing something and feeding after 4~6 days is spread on after clam class bait shredded and cultivates the basket bottom, throws something and feeds twice every day, and bait answers capacity to throw something and feed, and removes residual bait before the next bait throwing in; Nurturing period control illumination, daytime, seawater salinity was controlled at 28~36 with black mesh grid shading, and ocean temperature remains on 22~26 ℃;
Carry out the branch seedling when young spirodromy grows to 2.0~2.5cm, cultivating density is 200~300 young spiral shell/baskets, cultivates basket bottom bolting silk simultaneously and is changed to 40 orders, when young spiral shell grows to 3.8~4.2cm in cultivating basket, changes Da Chi or pond culture over to.
Beneficial effect
Based on thin angle spiral shell reproductive biology process, realized that the indoors artificial of thin angle spiral shell is grown seedlings, shorten the artificial breeding cycle, and can carry out large-scale production; Seedling-cultivating method is simple, practical, and is easy to operate, and production cost is low, for a new kind has been developed in aquaculture.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
1. close spiral shell is adopted and is caught and screen
The vegetative period of thin angle spiral shell is longer, and its breeding cycle and age at sexual maturity are not known at present as yet.Adopt mating season at natural waters and to catch close spiral shell and carry out reinforced cultivating, not only can shorten parent's artificial culture time, and can practice thrift a large amount of seedling costs.The present invention every month is the sampling survey in the sea area regularly, through dissection to a large amount of samples, and histologic section, microexamination.Understand, grasp its gonad development situation; Grow the peak period at gonad, increased primary sample in every month, to obtain natural waters fertilization egg capsule.
Confirm that by inquiry be the April in November to next year the breeding period of coastal thin angle, Hainan spiral shell, the Sheng phase is the January in December to next year then, and ocean temperature is about 21~26 ℃.Get into April, ocean temperature rises to after 27 ℃, still have close spiral shell mating, but egg laying amount is considerably less.Therefore, adopt in good time and catch thin angle spiral shell and can practice thrift a large amount of parent culture costs.
The inventor through trawler, has successively gathered the tens of pieces of thin angle of adult spiral shells and has done the fortune method with cooling on the basis that thin angle spiral shell is investigated to Hainan Province from the sea area, be about to ice cube and put into bubble chamber with plastic bag sealing, again spiral shell is put into case; Transporting nursery back carries out indoor foster temporarily earlier;
The thin angle spiral shell of supporting is temporarily put into 1m earlier 3Spend the night in the Glass fibre reinforced plastic tub of water body, when putting into, with the thin angle spiral shell outside of belly upwards, what creep can overturn voluntarily in second day is healthy spiral shell; Selective body is grown up and is changed nursery pond in the healthy spiral shell of 20cm and carry out reinforced cultivating; The spiral shell slowly of creeping after could overturning or overturn more than 2 days for couching should continue to support temporarily to observe.
2, close spiral shell reinforced cultivating
Cultivating the pond is rectangle fiberglass nursery pond, the long 4m in pond, wide 1.5m, high 1.5m.With the potassium permanganate bubble wash disinfection of 20ppm, at the bottom of the pond, lay the 8~10cm layer of sand through cleaning, sterilizing then earlier, it is dark to be filled to 1m, adopts bottom inflation, spray pipeline mode to intake.
The thin angle of healthy adult spiral shell after the screening is put into the pond carry out reinforced cultivating, breeding density is 4~5/m 3Just adopted the thin angle spiral shell of catching and generally do not ingested in preceding 3~4 days,, made it to conform as early as possible, cultivated the pond and cover the pond face, control illumination and noise with the black mesh grid for eliminating stress reaction.
After conforming, local common clam class such as the fresh clam of throwing something and feeding, the razor clam of hanging, purple blood clam.The thin angle spiral shell little crab class of low value of also can ingesting, but because of residual bait is prone to ruin water quality, few as far as possible the throwing, or only as subsequent use bait.Feeding volume is adjusted by the food ration of the previous day, generally is advisable to eat up in 3 hours, avoids residual bait too much to influence pool inner water matter; Daytime, light was strong excessively, and thin angle spiral shell food ration is less, therefore, the bait throwing in time with evening 6:00~8:00 be advisable; Nurturing period, regularly clear up residual bait, ight soil, change water 1/2 every day.Simultaneously, notice that observation is ingested, active situation,, should in time detect, and thoroughly change water, avoid polluted water if dead individuality is arranged.
The short-cut method of judging individual death is: the front end of at first observing thin angle spiral shell has or not the black water pipe to stretch out, and the individuality of living that is that stretches out is arranged; Do not have water pipe like front end and stretch out, then can observe its abdominal foot portion, can not see like abdominal foot portion, very likely dead, should take out observation.
Generally, through about 15 days~1 month reinforced cultivating, the thin angle spiral shell of gonadal maturation can select to match self-copulation.
Thin angle spiral shell is a gonochorism, and male have a phallus.During mating, male spiral shell stretches out abdominal foot portion, and phallus is inserted female spiral shell gonopore.The mating duration of thin angle spiral shell is longer, can reach tens hours, as receives interference promptly to end mating.Therefore, should reduce illumination and sound interference at thin angle during the spiral shell mating.Thin angle spiral shell is laid eggs on the darker pool wall of light usually, lays eggs a few days ago, and female spiral shell can be creeped everywhere and sought the place of laying eggs.The duration that female spiral shell is laid eggs is longer, and every product a slice egg capsule needs 40~60 minutes approximately, as sturts and promptly stop to lay eggs, and could recover at a distance from a couple of days.Therefore, during the mate and oviposit, be the interference that water is changed in reduction, change water and change pipeline mode into that discharge is 3~5L/ minute.Because of individual difference, the egg laying amount of each female spiral shell differs.In the enforcement of the present invention, minimum egg laying amount is 6 egg capsules, and the highest reaches 34.After laying eggs, adhere to base portion with scalpel along egg capsule and carefully downcut, be sure not to cut, change in the hatching basket and cultivate hatching.
3, egg capsule hatching
The egg capsule that downcuts is placed in the hatching basket, places the cultivation pond to hatch.The hatching basket is the square plastic basket, and specification is: top 40 * 28cm, and bottom 32 * 22cm, the high 12cm of basket, basket inside is covered with 60 mesh sieve tulles, and even up the bottom; Hatching basket both sides are tied with hard foam, and basket is bubbled through the water column; Cultivate the pond still with the rectangle fiberglass pond of strengthening close spiral shell, depth of water 1m, slowly end inflation; For guaranteeing the water body exchange in the hatching basket, adopt the flowing water hatching, discharge is 3~5L/ minute; Between the incubation period, with black mesh grid control illumination, seawater salinity is controlled at 28~36.As cause the natural waters salinity to descend suddenly because of heavy rain, should suspend the flowing water hatching, reduce the salinity fluctuation as far as possible.Press natural waters water temperature situation, the hatching water temperature remains on 22~26 ℃.Temperature is low excessively, and the meeting retardation development of fertilized ova time, it is all dead in egg capsule that long-time low temperature can cause young spiral shell.After cultivating in 50~60 days, egg capsule is oblong under these conditions, the top attenuation, and young spiral shell is rupture of membranes and going out from the top.Just the young spiral shell shell length of membrane does not wait from 2.40~5.00mm, and is most of about 3.50mm.
4, young spiral shell is cultivated
With the egg capsule of batch output, its young spiral shell rupture of membranes time differed 2~3 days approximately; Its membrane of young spiral shell with the sheet egg capsule is also asynchronous, differs 1~2 day; Behind the membrane, young spiral shell accumulates in around the egg capsule, or reversal of the natural order of things floats on the water surface; Rupture of membranes is not climbed out of egg capsule or with rupture of membranes not yet after in batch egg capsule 3~4 days, available scissors is cut egg capsule open gently yet after 2 days, wherein young spiral shell is taken out cultivate.
Behind the membrane 2 days, can young spiral shell be transferred in the cultivation basket that covers in addition with 40 mesh sieve tulles and cultivate, cultivating density is 500~600 young spiral shell/baskets.Cultivate basket and the same specification of hatching basket, only the bolting silk net in the basket is replaced as 40 order specifications.The condition of water quality that young spiral shell is cultivated is identical with the egg capsule hatching with mode.
The young spiral shell of hatching, is not ingested in the dark place or float on the water surface at preceding 4~6 days polies basically, a small amount of chlorella cream or spirulina powder that concentrates of can throwing something and feeding this moment, and once a day, each cultivates basket 1~2 gram of throwing something and feeding; The animal baits such as fresh, the clam that shreds, the razor clam of hanging of throwing something and feeding after 4~6 days are thrown something and fed twice every day.Long for guaranteeing young spirodromy, daily ration, feeding quantity should be thrown something and fed according to 4 hours the bait amount of taking the photograph capacity last time, and residual bait is removed before next bait throwing in, to guarantee that water quality is pure and fresh; Nurturing period, control excessive illumination with the black mesh grid daytime.Seawater salinity, temperature still are controlled at 28~36 and 22~26 ℃.About with this understanding young spiral shell can grow to 2.0~2.5cm through 2 months, at this moment, should carry out the branch basket and cultivate, and cultivating density is 200~300 young spiral shell/baskets.For strengthening and the water quality exchange of water body greatly, the cultivation basket of this moment can change the more bolting silk of large mesh, not spill young spiral shell degree of being.About 3 months, in young spiral shell is being cultivated basket, grow to 4.0cm when above, can change Da Chi over to or the pond is cultured.So far, the thin angle spiral shell stage of growing seedlings finishes, and gets into the breed stage.

Claims (5)

1. the artificial raise seedling method of a thin angle spiral shell comprises:
(1) adopts in good time and catch close spiral shell
In coastal area, Hainan, be the April in November to the second in every year year the mating season of thin angle spiral shell, and the Sheng phase is December~second year January, and ocean temperature is 21~26 ℃;
(2) close spiral shell reinforced cultivating
Choosing the body spiral shell of growing up in the thin angle of healthy adult of 20cm puts into nursery pond and carries out reinforced cultivating, nurturing period, the fresh clam class bait of throwing something and feeding; With black mesh grid control illumination, slowly inflation, inflation sand head has just had bubble to emerge to get final product; Reduce noise jamming, the timely adjustment daily ration, feeding quantity is a standard to eat up in 3 hours as far as possible; Change water 1/2 every day and clear up residual bait and ight soil, breeding density is controlled at 4~5 spiral shell/m 3Water body;
Through 15 days~1 month reinforced cultivating, the thin angle spiral shell of gonadal maturation carried out mate and oviposit, should reduce illumination and sound interference during mating; During the mate and oviposit, change flowing water into and cultivate, discharge is 3~5L/ minute, after laying eggs, carefully downcuts along the egg capsule base portion with scalpel, changes in the hatching basket and cultivates;
(3) egg capsule hatching
Egg capsule is placed in the square hatching basket, places the hatchery to hatch, 6m is used in the hatchery 3Rectangle fiberglass pond, depth of water 1m, slowly inflation makes inflation sand head just have bubble to emerge, and adopts the flowing water hatching, discharge is 3~5L/ minute;
Control illumination between the incubation period, daytime, seawater salinity was controlled at 28~36 with black mesh grid shading, and the hatching water temperature remains on 22~26 ℃;
Under these conditions, after cultivating in 50~60 days, young spiral shell goes out from egg capsule top rupture of membranes;
(4) young spiral shell is cultivated
The young spiral shell of firm membrane is transferred in the cultivation basket, places 6m 3Rectangle fiberglass is cultivated in the pond, cultivates the basket bottom and covers with 60 purpose bolting silks, and the depth of water adds to 1m, adopts flowing water, and discharge is 3~5L/ minute, and cultivating density is 500~600 young spiral shell/baskets;
Throwing something and feeding in preceding 4~6 days concentrates the unit cell algae, throws something and feeds every day once, and each cultivates basket 1~2 gram of at every turn throwing something and feeding; The fresh clam class bait of throwing something and feeding after 4~6 days is spread on after clam class bait shredded and cultivates the basket bottom, throws something and feeds twice every day, and bait answers capacity to throw something and feed, and removes residual bait before the next bait throwing in; Nurturing period control illumination, daytime, seawater salinity was controlled at 28~36 with black mesh grid shading, and ocean temperature remains on 22~26 ℃;
Carry out the branch seedling when young spirodromy grows to 2.0~2.5cm, cultivating density is 200~300 young spiral shell/baskets, cultivates basket bottom bolting silk simultaneously and is changed to 40 orders, when young spiral shell grows to 3.8~4.2cm in cultivating basket, changes pond culture over to.
2. the artificial raise seedling method of a kind of thin angle according to claim 1 spiral shell is characterized in that: adopt the thin angle spiral shell of catching and adopt the method for the dried fortune of cooling to transport nursery back, be about to ice cube and put into bubble chamber with plastic bag sealing, thinner angle spiral shell is put into case; Spend the night earlier after transporting back and support temporarily, make the thin angle spiral shell outside of belly upwards when putting into storage pond, holding pond, what creep can overturn voluntarily in second day is healthy spiral shell.
3. the artificial raise seedling method of a kind of thin angle according to claim 1 spiral shell is characterized in that: behind the spiral shell mate and oviposit of thin angle, egg capsule downcuts in the hatching basket grows hatching; The hatching basket is the vinyon material, and specification is top 40 * 28cm, bottom 32 * 22cm; The high 12cm of basket, inside is covered with 60 mesh sieve tulles, and even up the bottom; Hatching basket both sides are tied with hard foam, and basket is bubbled through the water column.
4. the artificial raise seedling method of a kind of thin angle according to claim 1 spiral shell is characterized in that: described clam class bait is clam, the razor clam of hanging, purple blood clam.
5. the artificial raise seedling method of a kind of thin angle according to claim 1 spiral shell is characterized in that: young spiral shell hatch preceding 4~6 days of back to throw concentrated unit cell algae be chlorella, Chaetoceros.
CN2010102475628A 2010-08-06 2010-08-06 Artificial breeding method for tuba false fusus Expired - Fee Related CN101946720B (en)

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CN103141419A (en) * 2013-03-11 2013-06-12 杨成胜 Multiplication method for wetland water area vivipara
CN104170783A (en) * 2014-09-05 2014-12-03 广西壮族自治区水产科学研究院 Efficient breeding method suitable for limuli from germ cells to 2-age phase
CN104472403B (en) * 2014-11-25 2017-08-25 中国水产科学研究院东海水产研究所 The egg capsule hatching method and hatching apparatus of a kind of melon spiral shell
CN104719216A (en) * 2015-04-10 2015-06-24 宁国市金东坊农业开发有限公司 Parent-tor-brevifilis gonad synchronous and early development method
CN105724282A (en) * 2016-02-16 2016-07-06 福建港德水产有限公司 Method for mixed cultivation of sea horses and hemifusus ternatanus
CN106942103B (en) * 2017-02-17 2019-12-27 中国水产科学研究院东海水产研究所 Artificial seedling raising method for cucurbit snails
CN108207716B (en) * 2018-03-23 2021-01-29 中国科学院南海海洋研究所 Artificial breeding method of Zaocys giganteus

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