CN1256015C - Method for changing fresh water aquiculture jewfish to mariculture jewfish - Google Patents
Method for changing fresh water aquiculture jewfish to mariculture jewfish Download PDFInfo
- Publication number
- CN1256015C CN1256015C CNB2004100153164A CN200410015316A CN1256015C CN 1256015 C CN1256015 C CN 1256015C CN B2004100153164 A CNB2004100153164 A CN B2004100153164A CN 200410015316 A CN200410015316 A CN 200410015316A CN 1256015 C CN1256015 C CN 1256015C
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- China
- Prior art keywords
- jewfish
- jewfishes
- aquiculture
- water
- net cage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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 present invention relates to a method for transforming jewfishes of fresh water aquiculture into jewfishes of sea-water aquiculture, and belongs to the aquiculture field. The method for transforming jewfishes of fresh water aquiculture into jewfishes of sea-water aquiculture comprises the following steps: 1. diverting jewfishes of adult fishes of fresh water aquiculture into a net cage for alive delivery in deep water; 2. pushing the net cage for alive delivery to a semi-brackish water aquiculture base station whose weight percentage of water quality and salinity is 0.05% to 0.08%, and temporarily cultivating the jewfishes for 15 to 30 days; 3. then pushing the net cage for alive delivery to a sea water net cage aquiculture base station whose salinity weight percentage is 0.08% to 1%, and temporarily cultivating the jewfishes for 15 to 30 days. Jewfishes cultivated by the method has the advantages of white and tender meat quality, sweet flavor, higher protein content and lower fat content, the color and the taste have the quality of jewfishes of complete sea-water aquiculture, and can reduce the cycle time of jewfishes of sea-water aquiculture.
Description
Technical field
The present invention relates to aquaculture method, the jewfish that relates in particular to a kind of freshwater aquiculture transfers the method for the jewfish of mariculture to.
Background technology
Jewfish (L.japonicus C.et.v) has another name called colored perch, perch, plate perch, seven-star perch, is subordinate to Perciformes
Section, perch belong to.Its bodily form is longer, slightly is spindle, the point kiss, and mouth is big, last lower jaw villous shape tooth group, body drapes over one's shoulders ctenoid scale, the body colour silvery white, the back is the lime look.It is coastal that jewfish extensively is distributed in China, be a kind ofly live in the offshore shallow sea, lower floor, be rich in the wide temperature of higher economic worth, euryhalinous famous and precious fish.It is adapted at various water bodys and carries out various forms of breed.China's mariculture jewfish history is more of a specified duration, and the speed that jewfish grows in seawater is slower, but the pure white delicacy of meat, taste delicate fragrance.Before and after China freshwater aquiculture jewfish started from 1989, development was very fast.Jewfish is at the freshwater aquiculture fast growth, and fat is more in the meat, and Protein content is lower, and sense of taste is relatively poor, and color and luster is different with the perch of mariculture significantly.
Summary of the invention
Technical problem to be solved by this invention: provide a kind of jewfish of freshwater aquiculture to transfer the method for the jewfish of mariculture to, the jewfish that this method is cultured has the pure white delicacy of meat, taste delicate fragrance, Protein content is higher, the content of fat is lower, color and luster and sense of taste have the due quality of jewfish of complete mariculture, and shorten the cycle of complete mariculture.
The present invention solves the technical scheme that its technical problem adopts: a kind of jewfish of freshwater aquiculture transfers the method for the jewfish of mariculture to, and it comprises the steps:
1. freshwater aquiculture to the jewfish of adult fish is transferred to the Net cage for alive delivery that places deep water;
2. Net cage for alive delivery being pushed into water quality salinity weight, to do proportion by subtraction be 0.5 ‰-0.8 ‰ half brackish culture base, and jewfish was supported 15-30 days temporarily;
3. movable net cage being pushed into salinity weight permillage again is 0.8 ‰--10 ‰ seawater cage culture base, jewfish was cultured 15-30 days.
The instrument that in the step 1 jewfish of freshwater aquiculture is transferred to Net cage for alive delivery is a Fish refloating bag, and described Fish refloating bag is that the bottom is the cloth bag of inner wall smooth, and the utensil of fishing with a net is formed for the net sheet in top, can reduce jewfish and sustain damage in the process of fishing for.
The Net cage for alive delivery that step 1-3 adopted is that upper ledge is equipped with float, and keeps afloat, and the dictyosome inner bottom part is equipped with metal frame, and drives the software net cage that dictyosome sinks.
Half brackish culture base in the step 2 is provided with isolated area, guarantees to support temporarily the influence of not accepting other undesired waters, water source in the 500 meters scopes of jewfish distance in Net cage for alive delivery.
Seawater cage culture base in the step 3 is provided with isolated area, guarantees to support temporarily the influence of not accepting other undesired waters, water source in the 500 meters scopes of jewfish distance in movable net cage.
Beneficial effect of the present invention:
1. because jewfish fast growth in freshwater aquiculture, after growing up to adult fish, in salinity is to support temporarily in 0.5 ‰-0.8 ‰ half degree of saltiness water, and is 0.8 ‰ in salinity--culture in 10 ‰ the seawater cage culture base, make the jewfish of freshwater aquiculture can adapt to growing environment in seawater fully.Make the jewfish of freshwater aquiculture be converted into the jewfish of mariculture, the protein of jewfish, fat and amino acid are formed near the jewfish of mariculture fully.
2. the mariculture jewfish is long to the cycle of adult fish fully, and jewfish is cultured in fresh water to adult fish, can shorten the culture-cycle of complete mariculture jewfish.
3. the present invention adopts Fish refloating bag to shift jewfish, and adopts the Net cage for alive delivery transportation and culture jewfish, can reduce jewfish and damage.
Embodiment
Embodiment one
With the specification of culturing in the fresh-water pool is that the jewfish of 1.5-2.0 jin picks up from fresh-water pool with Fish refloating bag, and is transferred to the Net cage for alive delivery that places deep water, and the Net cage for alive delivery specification is 4m * 5m * 4m, throws in 800 tail jewfish; With motor-driven canoe Net cage for alive delivery being pushed away toward the water quality salinity is that 0.5 ‰ half degree of saltiness cultivation base carries out supporting temporarily, and the time is 15 days, and isolated area is set, and guarantees apart from the influence of not accepting other undesired waters or water source in 500 meters of the jewfish; After treating that the jewfish skin of damaging on a small quantity recovers normal and begins material feeding, with motor-driven canoe movable net cage being pushed away toward water quality is that salinity weight permillage is to culture 30 days in 0.8 ‰ the seawater cage culture base again, the seawater cage culture base also is provided with isolated area, make the jewfish of freshwater aquiculture can adapt to growing environment in seawater fully, the jewfish of freshwater aquiculture is changed the jewfish of mariculture into.In whole process, observe jewfish activity situation, timely and appropriate discovery is thrown in feed, guarantees that jewfish eats the feed of freshness deficiency during this period as far as possible less, will avoid jewfish unfavorable condition generations such as infection to occur simultaneously.
Embodiment two
The jewfish of 1.2-1.8 jin is transferred to the Net cage for alive delivery that places deep water from fresh-water pool, the Net cage for alive delivery specification is 4m * 10m * 4m, throws in 1500 tail jewfish; It is that 0.8 ‰ half degree of saltiness cultivation base carries out supporting temporarily that Net cage for alive delivery is pushed away toward the water quality salinity, and the time is 20 days, and isolated area is set; Movable net cage being pushed away toward water quality is that salinity weight permillage is to culture 15 days in 5 ‰ the seawater cage culture base again, and the jewfish of freshwater aquiculture is changed the jewfish of mariculture into.
Embodiment three
The jewfish of 2-2.5 jin is transferred to the Net cage for alive delivery that places deep water from fresh-water pool, the Net cage for alive delivery specification is 4m * 5m * 2.5m, throws in 500 tail jewfish; It is that 0.7 ‰ half degree of saltiness cultivation base carries out supporting temporarily that Net cage for alive delivery is pushed away toward the water quality salinity, and the time is 30 days, and isolated area is set; Movable net cage being pushed away toward water quality is that salinity weight permillage is to culture 20 days in 10 ‰ the seawater cage culture base again, and isolated area is set, and makes jewfish can adapt to growing environment in seawater fully, and the jewfish of freshwater aquiculture is changed the jewfish of mariculture into.
Claims (3)
1. the jewfish of a freshwater aquiculture transfers the method for the jewfish of mariculture to, it is characterized in that: it comprises the steps:
(1) freshwater aquiculture to the jewfish of adult fish is transferred to the Net cage for alive delivery that places deep water;
(2) Net cage for alive delivery being pushed into water quality salinity weight permillage is 0.5 ‰-0.8 ‰ half brackish culture base, and jewfish was supported 15-30 days temporarily;
(3) Net cage for alive delivery being pushed into salinity weight permillage is 0.8 ‰ again--10 ‰ seawater cage culture base, jewfish was cultured 15-30 days.
2. the jewfish of freshwater aquiculture according to claim 1 transfers the method for the jewfish of mariculture to, it is characterized in that: half brackish culture base in the step 2 is provided with isolated area, guarantees to support temporarily the influence of not accepting other undesired waters, water source in the 500 meters scopes of jewfish distance in Net cage for alive delivery.
3. the jewfish of freshwater aquiculture according to claim 1 transfers the jewfish method of mariculture to, it is characterized in that: the seawater cage culture base in the step 3 is provided with isolated area, guarantees to support temporarily the influence of not accepting other undesired waters, water source in the 500 meters scopes of perch distance in Net cage for alive delivery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100153164A CN1256015C (en) | 2004-02-10 | 2004-02-10 | Method for changing fresh water aquiculture jewfish to mariculture jewfish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100153164A CN1256015C (en) | 2004-02-10 | 2004-02-10 | Method for changing fresh water aquiculture jewfish to mariculture jewfish |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1557148A CN1557148A (en) | 2004-12-29 |
| CN1256015C true CN1256015C (en) | 2006-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100153164A Expired - Fee Related CN1256015C (en) | 2004-02-10 | 2004-02-10 | Method for changing fresh water aquiculture jewfish to mariculture jewfish |
Country Status (1)
| Country | Link |
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| CN (1) | CN1256015C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104798698B (en) * | 2014-01-23 | 2017-11-10 | 珠海市斗门区河口渔业研究所 | A kind of jewfish artificial raise seedling method suitable for Hekou District |
| CN104247684A (en) * | 2014-05-04 | 2014-12-31 | 浙江省海洋水产研究所 | Pollution-free cultivation method of lateolabrax japonicus |
| CN106069944A (en) * | 2016-07-06 | 2016-11-09 | 苏州盛天力离心机制造有限公司 | A kind of cultural method of hairtail |
| CN109937924B (en) * | 2019-03-26 | 2021-11-16 | 中国水产科学研究院珠江水产研究所 | Breeding method for improving quality of euryhaline fishes in low-salinity area |
| CN110973017A (en) * | 2019-12-14 | 2020-04-10 | 大连海洋大学 | Industrial breeding method of European red-toothed perches |
-
2004
- 2004-02-10 CN CNB2004100153164A patent/CN1256015C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1557148A (en) | 2004-12-29 |
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Granted publication date: 20060517 Termination date: 20130210 |