CN104255612A - Method for hastening parturition of shellfishes by sterilized and neutralized sea water - Google Patents
Method for hastening parturition of shellfishes by sterilized and neutralized sea water Download PDFInfo
- Publication number
- CN104255612A CN104255612A CN201410519911.5A CN201410519911A CN104255612A CN 104255612 A CN104255612 A CN 104255612A CN 201410519911 A CN201410519911 A CN 201410519911A CN 104255612 A CN104255612 A CN 104255612A
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- China
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- shellfish
- water
- shellfishes
- seawater
- sea water
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/54—Culture of aquatic animals of shellfish of bivalves, e.g. oysters or mussels
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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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
Abstract
The invention relates to parturition hastening methods for shellfish products, in particular to a method for hastening parturition of shellfishes by sterilized and neutralized sea water. According to the method, outdoor sea water is sedimented in a sedimentation tank, sodium hypochlorite or bleaching powder are added for sterilization, sodium thiosulfate is used for neutralizing residual chlorine in the water, water in a nursery pond is firstly drained off during parturition hastening, the neutralized sea water is injected into the nursery pond until the sea water submerges seed shellfishes, air inflation and oxygenation are performed, the seed shellfishes are added immediately once spawning of the seed shellfishes is discovered, and the sea water is injected until the pond is filled with the sea water. The method is simple, and easy to implement. The method has the advantages of short time, high parturition hastening rate and good effect in terms of shellfish parturition hastening. The method belongs to methods for changing growing environmental conditions of the seed shellfishes, but the method is slow and gentle and does not cause intense stimulation and damage to the seed shellfishes. Indexes such as fertilized-egg hatching rate, metamorphosis rate and blood-shellfish repeating utilization factor are increased by 20% as compared with those in the prior art. The problems of shellfish source shortage and difficulty in seed breeding during shellfish product production are solved indirectly.
Description
Technical field
What the present invention relates to is the induced spawning method of shellfish type seafood, specifically a kind of utilize sterilization neutralization after seawater method that shellfish is hastened parturition.
Background technology
At present, rapidly, cultivation unit and scientific research institution are in order to increase economic efficiency, and very large effort has been made in the volume increase research especially for expensive shellfish type seafood in culturing marine products industry development both domestic and external.In order to increase spawning number and increase cultivation individual amount, research is proposed a variety of induced spawning method for kind of shellfish.Wherein there is a method for change kind of the shellfish growing environments such as employing is dried in the shade, flowing water, intensification, ammonia seawater.Also has the method adopting the environmental stimulis such as machinery concussion, solar exposure, galvanism, Ultraviolet radiation, injected chemical medicine.Also have and adopt high concentration Micro Algae to throw something and feed and the method for seminal fluid induction, for be all wish kind of shellfish can more than enough batch lay eggs, produce high-quality ovum, improve incubation rate, to increase economic efficiency.But these methods all also exist hastens parturition by problems such as duration, Fertilized quality comparatively large to the injury of close shellfish and all undesirable, the close shellfish recycling rate of waterused of incubation rate are low.Also have adopt dry in the shade, induced spawning method that Ultraviolet radiation and the high concentration Micro Algae method of throwing something and feeding combine.And this method also exists complex operation, with duration, expense is large and plant the low problem of shellfish recycling rate of waterused.
Summary of the invention
For above-mentioned situation, the object of this invention is to provide the clean seawater of a kind of use and to hasten parturition the method for shellfish, namely adopt and first sterilized by seawater, the seawater then neutralizing disinfectant is hastened parturition shellfish.
The present invention is achieved by following technical solution; First will plant shellfish and support accelerating temporarily in nursery pond, and when coefficient of condition reaches more than 90%, dissect its sexual gland microscopy, can hasten parturition during gonad maturity.
1, hasten parturition by the processing method of seawater;
Outdoor seawater is precipitated 12 ~ 16 hours in sedimentation basin, and then through sand filtration and bolting silk net flood chamber inner storing water pond, add clorox or bleaching powder sterilization, the effective chlorine density in water is 50 ~ 80mg/L.Mix latter standing 8 hours.Then with the chlorine residue in sodium thiosulfate and in elimination water, the consumption of neutralizer is for being as the criterion so that the display of starch potassium iodide indicator is colourless.
2, induced spawning method
First the water in nursery pond is drained, then seawater injection nursery pond to the depth of water after neutralization is flooded kind of a shellfish, then inflate oxygenase-1 ~ 2 hour.Add nursery seawater immediately when finding that kind of a shellfish lays eggs, namely nature seawater is full to pond.Seawater for neutralisation treatment has stricter requirement, and requirement must neutralisation treatment before use, is used for hastening parturition at once, should not places of a specified duration after neutralization.
The inventive method is simple, easy to implement.Kind of shellfish is hastened parturition there is the advantage that the time of hastening parturition is short, spawning rate is high, effective.This method is also belong to change kind of a method for shellfish growing environment condition, but this method is light and slow soft, can not produce any intense stimulus to kind of shellfish, can not bring any injury, and therefore the availability of close shellfish is high.Its incubation rate and survival rate of seedling improve all thereupon.Solve the cycle that existing shellfish induced spawning method exists long, large to close shellfish injury, Fertilized quality and the low problem of all undesirable, the close shellfish recycling rate of waterused of incubation rate.The results showed and the indexs such as its hatchability of fertile eggs, distortion ratio and close shellfish recycling rate of waterused on average improve 20 percentage points than prior art.A difficult problem for the poor and seed breeding in the shellfish source in shellfish production process that simultaneously also indirectly solves.
Table 1 to be hastened parturition the incubation rate of shellfish, distortion ratio, survival rate and the close shellfish availability table of comparisons for adopting this method
Embodiment
Below in conjunction with embodiment, the invention will be further described;
Embodiment 1
Time is June 12, selects 40 clam kind shellfishes, through seawater cleaning shell surface.Be positioned over indoor raising of seedling pond.Nursery pond length is 5 meters, wide be 2 meters, height is 1 meter.The sand filtration depth of water about 0.9 meter in pond.Natural temperature, day full dose change the water clear end once, day bait throwing in 2 times.After first quarter moon, dissect kind of a shellfish, coefficient of condition reaches 91%, and the observation of microscopy gonad finds that sexual gland is ripe.
Shellfish is hastened parturition by Seawater Treatment: outdoor seawater is introduced sedimentation basin, precipitate 12 hours, indoor water storage pond is introduced by after sand filtration and the beautiful net filter of 300 mesh sieves, add clorox or bleaching powder sterilization, effective chlorine density 50mg/L in water, mixes rear standing 8h, is spilled into saturated hypo solution mixing before hastening parturition, eliminate chlorine residue in water to neutralize, the addition of neutralizer be starch potassium iodide indicator display sterilization seawater colourless till.
. hasten parturition: July 1 early 7 time, clam is cultivated seawater in pond and drains, add in nursery pond immediately above-mentioned handle well seawater, flood kind of a shellfish to the depth of water, homogenous charge, inflationtime is 2 hours.Not throw something and feed bait, find for 8 thirty to lay eggs, add nursery seawater to completely pond, in 10 point discovery ponds, ovum amount has reached 100,000,000 pieces.
Embodiment 2
Time is mid-April, selects into 100 razor shell kind shellfishes, is placed in the 10m being added with the dark sand filter seawater of 1m
2support temporarily in the indoor raising of seedling pond of × 1, natural temperature, day full dose change water, once period throws something and feeds bait based on fresh Nitzschia closterium minutissima, chlorella, and throw something and feed food density 30000cell/mL, day bait throwing in 2 times at the clear end.
May 5, dissect kind of a shellfish, coefficient of condition is 90%, and microscopy gonad is reached maturity.
Hasten parturition by Seawater Treatment: outdoor seawater precipitates, leave standstill 15 hours, through 300 mesh sieve beautiful net access indoor water storage pond after sand filtration, add clorox or bleaching powder sterilization, effective chlorine density 70mg/L in water, mix rear standing 8h, with in saturated hypo solution and eliminate chlorine residue before hastening parturition, consumption to be colourlessly as the criterion with the display of starch potassium iodide indicator.
Hasten parturition: when May 8 day afternoon 13, kind of shellfish cultivated seawater in pond and drain, add above-mentioned handle well hasten parturition and flood kind of a shellfish, homogenous charge by seawater to the depth of water, inflationtime is 1.5 hours.Observe when 14 and lay eggs, adding nursery seawater to expiring pond, when 16, finding that in pond, egg laying amount is 100,000,000 pieces.
Embodiment 3
Time is May 19, selects into 40 Mactra veneriformis kind shellfishes, is placed in the 10m being added with the dark sand filter seawater of 1m
2support temporarily in the indoor raising of seedling pond of × 1, natural temperature, day full dose change water, once period throws something and feeds bait based on fresh Chaetoceros, chlorella, food density of throwing something and feeding 10000/mL, day bait throwing in 2-3 time at the clear end.
June 23, dissect kind of a shellfish, coefficient of condition is 92%, and microscopy gonad is ripe.
June 24: outdoor seawater precipitates, leave standstill 12 hours, through 300 mesh sieve beautiful net access indoor water storage pond after sand filtration, add clorox or bleaching powder sterilization, effective chlorine density 80mg/L in water, mix rear standing 8h, with in saturated hypo solution and eliminate chlorine residue before hastening parturition, consumption to be colourlessly as the criterion with the display of starch potassium iodide indicator.
Hasten parturition: when June 26 day the morning 8, kind of shellfish cultivated seawater in pond and drain, add above-mentioned handle well hasten parturition and flood kind of a shellfish, homogenous charge by seawater to the depth of water, inflationtime is 1.5 hours.Observe when 10 and lay eggs, adding nursery seawater to expiring pond, when 12, finding that in pond, egg laying amount is 15,000,000 pieces.
Table 1
This method is applicable to hastening parturition of all shellfishes, and table 1 only provides the experimental result of seven kinds of shellfishes, and does not do embodiment explanation to blood clam, clam, Japanese experiences and Ruditapes philippinarum.
Claims (1)
1. utilize the seawater after sterilization neutralization to hasten parturition the method for shellfish, it is characterized in that:
(1), hasten parturition by the processing method of seawater;
Outdoor seawater is precipitated 12 ~ 16 hours in sedimentation basin, then through sand filtration and bolting silk net flood chamber inner storing water pond, add clorox or bleaching powder sterilization, effective chlorine density in water is 50 ~ 80mg/L, mix latter standing 8 hours, with the chlorine residue in sodium thiosulfate and in elimination water, the consumption of neutralizer is for being as the criterion so that the display of starch potassium iodide indicator is colourless
(2), induced spawning method
First the water in nursery pond is drained, then seawater injection nursery pond to the depth of water after neutralization is flooded kind of a shellfish, then inflate oxygenase-1 ~ 2 hour, add nursery seawater when finding that kind of a shellfish lays eggs immediately full to pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410519911.5A CN104255612B (en) | 2014-09-23 | 2014-09-23 | A kind of utilize sterilization to neutralize after sea water hasten parturition the method for shellfish |
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| CN201410519911.5A CN104255612B (en) | 2014-09-23 | 2014-09-23 | A kind of utilize sterilization to neutralize after sea water hasten parturition the method for shellfish |
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| CN104255612A true CN104255612A (en) | 2015-01-07 |
| CN104255612B CN104255612B (en) | 2016-09-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117665A (en) * | 2017-04-12 | 2017-09-01 | 北京科力旺达生物技术有限公司 | A kind of transportation of live fish stress renovation agent and preparation method thereof |
| CN107549068A (en) * | 2017-08-25 | 2018-01-09 | 江苏省海洋水产研究所 | A kind of device and method for improving clam incubation rate |
| CN108450379A (en) * | 2018-02-09 | 2018-08-28 | 中国海洋大学 | A kind of method that pocket knife razor clam incubation is cultivated and laid eggs |
| CN112075488A (en) * | 2020-09-16 | 2020-12-15 | 烟台雨哥食品有限公司 | Deep purification method for improving safety of shellfish food |
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2014
- 2014-09-23 CN CN201410519911.5A patent/CN104255612B/en not_active Expired - Fee Related
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117665A (en) * | 2017-04-12 | 2017-09-01 | 北京科力旺达生物技术有限公司 | A kind of transportation of live fish stress renovation agent and preparation method thereof |
| CN107549068A (en) * | 2017-08-25 | 2018-01-09 | 江苏省海洋水产研究所 | A kind of device and method for improving clam incubation rate |
| CN107549068B (en) * | 2017-08-25 | 2021-07-02 | 江苏省海洋水产研究所 | Device and method for improving hatching rate of clams |
| CN108450379A (en) * | 2018-02-09 | 2018-08-28 | 中国海洋大学 | A kind of method that pocket knife razor clam incubation is cultivated and laid eggs |
| CN112075488A (en) * | 2020-09-16 | 2020-12-15 | 烟台雨哥食品有限公司 | Deep purification method for improving safety of shellfish food |
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| CN104255612B (en) | 2016-09-21 |
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Granted publication date: 20160921 Termination date: 20180923 |