CN103371118A - Method for improving bay scallop hatchability - Google Patents
Method for improving bay scallop hatchability Download PDFInfo
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- CN103371118A CN103371118A CN201310332358XA CN201310332358A CN103371118A CN 103371118 A CN103371118 A CN 103371118A CN 201310332358X A CN201310332358X A CN 201310332358XA CN 201310332358 A CN201310332358 A CN 201310332358A CN 103371118 A CN103371118 A CN 103371118A
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- hatchery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention mainly relates to the technical field of seafood production, in particular to a method for improving bay scallop hatchability. The method includes adopting a high-strength and all-dimensional inflation method to allow excessive sperms in water to form bubbles rapidly in a short time according to the principle of fluid mechanics, and gathering the bubbles to be bailed out with a bolting-silk net. By the method, hatching water quality for bay scallops can be effectively improved, egg washing time of the bay scallops is shortened, hatch density of fertilized eggs is improved by 80-100/ml, and hatchability reaches by above 65%. The hatch density and the hatchability are significantly improved as compared with that in the prior art, economic benefit is improved, and accordingly the method for improving the bay scallop hatchability has broad application prospects in the field of factory artificial breeding of the bay scallops.
Description
Technical field
The present invention relates generally to the marine product production technical field, especially relates to a kind of method that improves Incubation Rate of Argopecten irradians.
Background technology
Bay scallop (Argopectenirradias Lamarck) original producton location is that U.S., Atlantic is littoral, introduces China from the eighties in last century, has become one of main breed variety of northern shellfish at present.Bay scallop belongs to hermaphroditism, and during close shellfish spawning and fertilization, sperm quantity is wayward, forms easily polyspermy, and too much sperm is ruined water quality simultaneously, lopsided individuality is increased, so Incubation Rate of Argopecten irradians is starkly lower than other gonochorism scallops aborning.How effectively to improve Incubation Rate of Argopecten irradians, be one of bay scallop industrial artificial seedling rearing key issue that must solve.
Summary of the invention
The ovum method of washing of the present invention, according to fluid mechanics principle, adopt the method for high strength, comprehensive inflation, make sperm unnecessary in the water form fast at short notice foam, then foam is assembled, pull out with the bolting silk net, this method can effectively be improved the hatching water quality of bay scallop, shorten bay scallop and wash the ovum time, incubating oosperm density is brought up to 80-100/ml, and incubation rate reaches more than 65%, and incubation rate increases significantly compared to existing technology, and improved economic benefit, had wide practical use aspect bay scallop hatching, the cultivation.
Technical scheme of the present invention relates to a kind of method that improves Incubation Rate of Argopecten irradians, and it comprises following operating procedure,
The triploidy rate of bay scallop reaches 80-100/ml in the control hatchery, according to 1.～3. repeatedly operation of following step, until the formation of inflation non-foam, till the clarification of hatchery water quality;
1. be 1.5KW fan blower air port with power with internal diameter be that the breather pipe of 4cm is communicated with, the breather pipe mouth of pipe is inserted into the bottom of hatchery, utilize aeration fully to stir at the bottom of the pond, hatchery, form foam;
2. utilize the foam collecting board at hatchery water surface paddling, 1. step is formed foam be collected into hatchery one side;
3. the foam that utilizes the bolting silk net that 2. step is collected drags for to the pond, hatchery.
In technique scheme, in the preferred situation, described bay scallop fertilized egg is to hatch by following steps: 30m
3The hatchery, 3500-3600/ piece of bay scallop kind shellfish under the 18-19 ℃ of water temperature, supported temporarily accelerating bay scallop kind shellfish sexual gland index and reaches 15-17%, effective accumulated temperature reaches more than 400 ℃, and the avette rule of microexamination, yolk are even, sperm viability is hastened parturition after good; After drying in the shade 30-40 minute, add 21-22 ℃ sand filtration seawater, the kind shellfish begins ejaculation and lays eggs.
In technique scheme, in the preferred situation, the structure of described foam collecting board is: the fixing long rod handle at the edge, long limit of stripe board, the length of described stripe board is slightly less than the side of rectangle hatchery.The length of described long rod handle is near user's height, makes things convenient for the user to grip long rod handle and finishes 1. step is formed the purpose that foam is collected into hatchery one side.
Beneficial effect:
Traditional gas stone aeration can only several places fixed point be inflated in the hatchery, and inflation disperses, and is narrow-minded, and formation of foam lacks slowly.Fan blower only connects an escape pipe among the present invention, gas is concentrated ejection from the mouth of pipe, large-minded and violent, according to fluid mechanics principle, the fluctuation of violent water layer is conducive to more that unnecessary seminal fluid arrives water surface fast with gas in the water, forms foam, simultaneously the method for the invention, can carry out aeration in water body any point, guarantee uniformity and the popularity of inflation.The method of the invention makes the formation foam of sperm rapid, high volume in the water by violent aeration, then foam concentrations is pulled out, so repeat, can be when short in the chien shih water sperm form foam and thoroughly discharge, finish and wash ovum, all will be better than the inflation of traditional gas stone far away and wash ovum from washing ovum effect or ageing aspect.Adopt this method to wash ovum 60-80 minute, unnecessary sperm just can comparatively thoroughly be discharged in the water, under the condition of 21-22 ℃ of hatching water temperature, the hatching density of fertilized egg can reach 80-100/ml, and incubation rate reaches more than 65%, washes the ovum method with tradition and compares to have shortened and wash the ovum time, when having improved hatching density and unit of water body utilization rate, also improve incubation rate, both reduced production cost, increased again economic benefit.In addition, the production technology of this product is simple, is easy to enlarge large-scale production, easy control of process conditions.
Embodiment
Following non-limiting example can make the present invention of those of ordinary skill in the art's comprehend, but does not limit the present invention in any way.
Embodiment 1
Under the 18-19 ℃ of water temperature condition, support temporarily accelerating bay scallop kind shellfish sexual gland index and reach 15-17%, effective accumulated temperature reaches more than 400 ℃, the avette rule of microexamination, and yolk is even, and sperm viability well just can be carried out artificial induced spawning.Dried in the shade 30-40 minute, and then added 21-22 ℃ sand filtration seawater, add behind the water and to plant shellfish in about 40 minutes and begin ejaculation and lay eggs.30m
3The hatchery, plant 3500-3600/ piece of shellfish, 15-18 minute triploidy rate can reach 80-100/ml after finding kind of shellfish ejaculation, then will all plant shellfish and move into another hatchery of having filled it up with 21-22 ℃ of seawater continue to lay eggs (usually through 4-5 time the pond of moving, the bay scallop laying eggs end).Remove and just immediately aeration is carried out in this hatchery and wash ovum in case plant shellfish, namely repeatedly operate according to following steps 1-3, until the inflation non-foam forms, till the clarification of hatchery water quality.
1. inflation forms foam
The fan blower air port is connected with the mouth of pipe of breather pipe one end, the mouth of pipe of the breather pipe other end is fixed on the holding rod, the length of holding rod is decided according to length and width and the degree of depth of hatchery, the operator utilizes this holding rod, the breather pipe mouth of pipe can be inserted into any position (being mainly center and bottom ventilation to the hatchery) of hatchery.
Between the incubation period, start fan blower, the operator can hold holding rod, and the mouth of pipe is placed the bottom, hatchery, around pond 1-2 week, utilizes aeration fully to stir the hatchery, and the sperm in the water forms foam along with gas arrives the surface, hatchery.
Between the incubation period, with 30m
3The hatchery is example, and the external flexible metal conduit that meets an internal diameter 4cm of power 1.5KW fan blower utilizes holding rod, the breather pipe mouth of pipe can be inserted into the bottom, hatchery, around Chi1-2Quan, extensive uniform aeration at the bottom of the pond, unnecessary sperm arrives the surface, hatchery with gas in the water, forms a large amount of foams.
2. collection foam
Utilize the foam collecting board to collect the foam that step 1 forms, wherein, the structure of described foam collecting board is: the fixing long rod handle at the edge, long limit of stripe board, the length of described stripe board is slightly less than the side of rectangle hatchery.The length of described long rod handle is near user's height, the convenient operation person stands hand-held in the both sides, hatchery, two operators hand respectively two handles of foam collecting board, one end is walked to the other end from the hatchery, the foam collecting board forms foam with step 1 and is collected in the less zone of hatchery one side, so that pull out at hatchery water surface paddling.
3. pull foam out
Utilize iron wire to make racket shape framework, gravity flow screen tulle on framework then, the operator can utilize this instrument to streak at the water surface of hatchery, just the foam that step 2 is assembled can be dragged for to the pond, treats that foam can't pull out to the bolting silk net less, just can stop this step to operate.
With 30m
3The hatchery of volume is example, under the condition of 21-22 ℃ of hatching water temperature, the hatching density 80-100 of fertilized egg/ml, adopt this method to wash ovum 60-80 minute, incubation rate reaches and can arrive more than 65%, this method is according to fluid mechanics principle, by increasing inflation intensity and inflation point position, make that unnecessary sperm forms foam fast in the water, collect, pull operational sequence out and wash ovum in conjunction with foam again, wash the ovum method with tradition and compare not only greatly to have shortened and wash the ovum time, and improved hatching density and incubation rate.
Embodiment 2
2008-2012, carried out Artificial Rearing of Scallop production at the subordinate's of Research Institute of Ocean Fishery Science, Liaoning Province the breeding center of drawing in continuous 5 years.Utilize embodiment 1 described method, after bay scallop kind shellfish laid eggs ejaculation 15-18 minute, to plant shellfish and lift to other hatcheries, then by multipoint random sampling quantitative analysis method the fertilized egg quantity of hatchery be added up, guarantee that the hatchery triploidy rate remains on 80-100/ml.Wash immediately the ovum operation, recycle step 1-3 in this method, through 60-80 minute the ovum of washing, the hatchery non-foam formed, and water colour becomes comparatively clarification by muddiness, washes ovum and finishes.Treat development of fertilized ova to the D type young, still adopt take a sample the immediately method of quantitative analysis of multiple spot, the quantity of the D type young is added up.
Incubation rate (%)=(D type young number/fertilized egg number) * 100, statistics over the years sees Table 1.
According to continuous 5 years production practices, 30m
3The hatchery, incubating oosperm density 80-100/ml adopts the fan blower of 1.5KW, 60-80 minute ovum time is washed in the flexible metal conduit inflation of joining internal diameter 4cm, final incubation rate can reach more than 65%.The statistics data are as can be known: produce water body 1800m
3, seedling water 1000m wherein
3, bait is cultivated water body 800m
3, every annual output commercial seedling 2-3 hundred million.
Table 1.2008 year Artificial Rearing of Scallop production statistics in-2012
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited only to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to the technical program and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (3)
1. a method that improves Incubation Rate of Argopecten irradians is characterized in that comprising following operating procedure,
The triploidy rate of bay scallop reaches 80-100/ml in the control hatchery, according to 1.～3. repeatedly operation of following step, until the inflation non-foam forms;
1. be 1.5KW fan blower air port with power with internal diameter be that the breather pipe of 4cm is communicated with, the mouth of pipe of described breather pipe is inserted into the bottom of hatchery, fully aeration stirs at the bottom of the pond, hatchery, forms foam;
2. utilize the foam collecting board at hatchery water surface paddling, 1. step is formed foam be collected into hatchery one side;
3. the foam that utilizes the bolting silk net that 2. step is collected drags for to the pond, hatchery.
2. method according to claim 1 is characterized in that described bay scallop fertilized egg, is to hatch by following steps: 30m
3The hatchery, 3500-3600/ piece of bay scallop kind shellfish under the 18-19 ℃ of water temperature, supported temporarily accelerating bay scallop kind shellfish sexual gland index and reaches 15-17%, effective accumulated temperature reaches more than 400 ℃, and the avette rule of microexamination, yolk are even, sperm viability is hastened parturition after good; After drying in the shade 30-40 minute, add 21-22 ℃ sand filtration seawater, the kind shellfish begins ejaculation and lays eggs.
3. the method for claim 1 is characterized in that the structure of described foam collecting board is: the fixing long rod handle at the edge, long limit of stripe board, the length of described stripe board is slightly less than the side of rectangle hatchery.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310332358XA CN103371118A (en) | 2013-08-01 | 2013-08-01 | Method for improving bay scallop hatchability |
| CN201410007465.XA CN103734058B (en) | 2013-08-01 | 2014-01-07 | A kind of method improving Incubation Rate of Argopecten irradians |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310332358XA CN103371118A (en) | 2013-08-01 | 2013-08-01 | Method for improving bay scallop hatchability |
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| CN103371118A true CN103371118A (en) | 2013-10-30 |
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| CN201310332358XA Pending CN103371118A (en) | 2013-08-01 | 2013-08-01 | Method for improving bay scallop hatchability |
| CN201410007465.XA Expired - Fee Related CN103734058B (en) | 2013-08-01 | 2014-01-07 | A kind of method improving Incubation Rate of Argopecten irradians |
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| CN201410007465.XA Expired - Fee Related CN103734058B (en) | 2013-08-01 | 2014-01-07 | A kind of method improving Incubation Rate of Argopecten irradians |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103583439A (en) * | 2013-11-20 | 2014-02-19 | 文登市水产技术推广站 | Method for improving egg washing efficiency of bay scallops |
| CN107232103A (en) * | 2017-07-06 | 2017-10-10 | 中国海洋大学 | A kind of method for determining bivalve shellfish accumulated temperature accelerating temperature |
| CN109287533A (en) * | 2018-09-17 | 2019-02-01 | 大连海洋大学 | Scallop hybrid seed method for scaled breeding and equipment |
| CN116391654A (en) * | 2023-03-30 | 2023-07-07 | 中国海洋大学 | Large-scale hybridization breeding method for hermaphrodite scallops |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104585113A (en) * | 2014-12-30 | 2015-05-06 | 浙江海洋学院 | Super-intensive breeding device with low circulation rate |
| CN104585122A (en) * | 2014-12-30 | 2015-05-06 | 浙江海洋学院 | Foam removing device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1022728C (en) * | 1988-07-13 | 1993-11-17 | 杜佳垠 | Method for culturing young scallop in gulf |
| CA1319574C (en) * | 1988-10-06 | 1993-06-29 | Patrick Edmond Dabinett | Scallop aquaculture |
| CN100531566C (en) * | 2007-07-14 | 2009-08-26 | 中国海洋大学 | Bay scallop eggs-layingand hatching method |
| CN101703017A (en) * | 2009-07-31 | 2010-05-12 | 青岛农业大学 | Technique for preparing hermaphrodite scallop interspecific hybrid fingerlings |
| CN102217561B (en) * | 2010-04-13 | 2013-12-18 | 中国科学院海洋研究所 | Method for preparing male sterile bodies of argopecten irradians |
| CN102308770B (en) * | 2011-08-05 | 2012-07-18 | 青岛农业大学 | Breeding method for new marine backcrossed scallop variety |
-
2013
- 2013-08-01 CN CN201310332358XA patent/CN103371118A/en active Pending
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2014
- 2014-01-07 CN CN201410007465.XA patent/CN103734058B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103583439A (en) * | 2013-11-20 | 2014-02-19 | 文登市水产技术推广站 | Method for improving egg washing efficiency of bay scallops |
| CN107232103A (en) * | 2017-07-06 | 2017-10-10 | 中国海洋大学 | A kind of method for determining bivalve shellfish accumulated temperature accelerating temperature |
| CN109287533A (en) * | 2018-09-17 | 2019-02-01 | 大连海洋大学 | Scallop hybrid seed method for scaled breeding and equipment |
| CN109287533B (en) * | 2018-09-17 | 2024-02-27 | 大连海洋大学 | Large-scale breeding method and equipment for hybrid scallop offspring seeds |
| CN116391654A (en) * | 2023-03-30 | 2023-07-07 | 中国海洋大学 | Large-scale hybridization breeding method for hermaphrodite scallops |
| CN116391654B (en) * | 2023-03-30 | 2023-11-03 | 中国海洋大学 | Large-scale hybridization breeding method for hermaphrodite scallops |
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| Publication number | Publication date |
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| CN103734058A (en) | 2014-04-23 |
| CN103734058B (en) | 2016-07-13 |
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Application publication date: 20131030 |