CN106719204B - A method of soft crab is produced using wild crab - Google Patents
A method of soft crab is produced using wild crab Download PDFInfo
- Publication number
- CN106719204B CN106719204B CN201710010357.1A CN201710010357A CN106719204B CN 106719204 B CN106719204 B CN 106719204B CN 201710010357 A CN201710010357 A CN 201710010357A CN 106719204 B CN106719204 B CN 106719204B
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- crab
- pond
- production
- soft
- sieve plate
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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
- A01K80/00—Harvesting oysters, mussels, sponges or the like
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/06—Freezing; Subsequent thawing; Cooling
-
- 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 discloses a kind of methods using wild crab production soft crab, for reducing the production cost of soft crab, in favor of the popularization of soft crab production, steps are as follows: fishing wild crab, and it is divided into different batches by Individual Size, moulting cycle, it is launched in different storage pond, holding ponds respectively；When growing to ecdysis with a batch of crab in storage pond, holding pond, launched in production pond；The soft crab that figure becomes larger due to husking in production pond is periodically salvaged using sieve plate；The soft crab salvaged is quick-frozen.The wild fishing crab of identical figure, identical moulting cycle is concentrated cultivation by the present invention, and when being most likely into ecdysis with a batch of crab, the crab that figure becomes larger after completing shell is salvaged by the way of sieve plate, i.e. the production of completion soft crab；Production cost or labor intensity of workers all substantially reduce, conducive to the popularization of soft crab production.
Description
Technical field
The present invention relates to aquaculture fields, and in particular to a kind of method using wild crab production soft crab.
Background technique
Crab class belongs to crustacean, realizes modal growth by shell process, the new shell of crab in certain environment and
Be in time it is soft, be commonly called as soft crab.Since crab has sloughed off the old gill, food capsule, internal organ in shell, thus soft crab is very dry
Only, whole body is all edible, and fine and tender taste, softness, and compared with common crab, crab shell part is rich in crab cream element, crab red pigment, crust
The nutriments such as element, chitosan belong to aquatic products good merchantable brand.Therefore, the price of soft crab is often five times of hard crab, Er Qie
Supply falls short of demand in the market.
Production soft crab is using the subadult crab in cultivating pool, due to surviving for pond culture swimming crab mostly at present
Rate is extremely low, and collection soft crab, which has to control, in addition within 2 hours, needs a large amount of artificial progress 24 hours continuously after changing shell
" tailing ", human cost is huge, so that soft crab production industry is difficult to grow.
Summary of the invention
In order to reduce the production cost of soft crab, in favor of the popularization of soft crab production, the present invention provides a kind of utilizations
The method of wild crab production soft crab.
The technical solution adopted by the invention is as follows:
A method of using wild crab produce soft crab, steps are as follows: a) catch wild crab, and by Individual Size, slough off
The skin period is divided into different batches, is launched in different storage pond, holding ponds respectively；B) it is sloughed off to be grown in storage pond, holding pond with a batch of crab
When the skin phase, launched in production pond；C) soft shell that figure becomes larger due to husking in production pond is periodically salvaged using sieve plate
Crab；D) soft crab salvaged is quick-frozen.
The storage pond, holding pond feeds fresh and alive trash fish daily, changes water one third, and pulls dead crab out in time.
Crab is launched to before the production pond, chela lesser in the crab claw is cut off.
The salvaging period of the step c is 2 ~ 3 hours.
The beneficial effects of the present invention are:
The wild fishing crab of identical figure, identical moulting cycle is concentrated cultivation by the present invention, with a batch of crab almost into
When entering ecdysis, the crab that figure becomes larger after completing shell is salvaged by the way of sieve plate, i.e. the production of completion soft crab；It is produced into
This or labor intensity of workers all substantially reduce, conducive to the popularization of soft crab production.
Detailed description of the invention
Fig. 1 is the moulting cycle and mark sheet of swimming crab in the embodiment of the present invention.
Fig. 2 is the top view that pond is produced in the embodiment of the present invention.
Fig. 3 is the A-A direction view that pond is produced in the embodiment of the present invention.
Fig. 4 is the B-B direction view that pond is produced in the embodiment of the present invention.
Fig. 5 is schematic diagram when sieve plate is located at pool edge in the embodiment of the present invention.
Fig. 6 is the schematic diagram after the chela of crab in the embodiment of the present invention is removed.
Pond 1, guide rail 2, crossbeam 3, sieve plate 4, sieve pore 5, collecting box 6, ecdysis (E phase) crab 01, postmolt (A phase) crab
02。
Specific embodiment
Below using Portunus trituberculatus Miers as embodiment, in conjunction with attached drawing, the invention will be further described.
Portunus trituberculatus Miers is important one of the seawater economic crab in China, by the favor of consumer.Annual 8-9 is three
The allowable fishing season of wart swimming crab is also exactly the busy season of wild swimming crab reproduction shell, has quite in the swimming crab of fisherman's fishing at this time
Large scale is the crab for not yet completing reproduction shell, i.e. subadult crab, and this part crab market price is very low, therefore catches shuttle with sea
Sub- crab is raw material, can generate good economic benefit using the method for the invention production swimming crab.
The moulting cycle of swimming crab has a detailed description in " Portunus trituberculatus Miers moulting cycle is by stages " (Shen Jie) text, altogether
It is divided into postmolt (A phase, B phase), intermolt (C phase), proecdysis (D0 subage, D1 subage, D2 subage, D3 subage, the Asia D4
Phase), 5 periods of ecdysis (E phase), the feature in each husking stage is as shown in Fig. 1.Postmolt (A phase) therein is i.e.
For described soft crab, the duration is very short, will enter postmolt (B phase) within general 2 hours or so.
Raw material of 80 ~ 175 grams of weight of the subadult swimming crab for selecting sea to catch as production soft crab, is divided into 150 ~ 175
Gram (Class A), 125 ~ 150 grams (Class B), 105 ~ 125 grams (Class C), 80 ~ 105 grams of (class D) four major class, each major class press shuttle
Posture, the crust hardness of crab separate four B phase, C phase, D phase, E phase batches, put into 4x4 respectively in totally 16 storage pond, holding ponds.It throws daily
Fresh and alive trash fish is fed, changes water one third, and pull dead crab out in time.5-10 crab is selected at random out of each storage pond, holding pond daily to see
Examine, if having 50% or more in ecdysis (E phase) this, the crab of the storage pond, holding pond is launched into production pond；Crab is launched to described
Before producing pond, chela lesser in the crab claw should be cut off (as shown in Figure 6), first is that prevent crab from producing pond tied up in knots,
Subsequent screening is influenced, second is that the soft crab body that just husking is completed is fragile, avoids being injured.
After swimming crab becomes postmolt (A phase) from ecdysis (E phase), the weight of crab will increase 30 ~ 50%, and body is wide to be increased
Add 15 ~ 20% or so, thus soft crab can be salvaged from production pond by the way of sieve plate come.
Structure as shown in Figure 2, Figure 3, Figure 4 can be used in the structure of production pond and sieve plate: including pond 1,1 bottom both ends of pond
For wedged bottom, wedged bottom can be straight wedged bottom, can also be equipped with for circular arc bottom or the wedged bottom of other forms, 1 two sides of pond flat with 1 bottom of pond
Capable guide rail 2 is equipped with the crossbeam 3 across pond 1 on guide rail 2, and crossbeam 3 is equipped with power device and can move back and forth along guide rail 2,
It is fixed with sieve plate 4 below crossbeam 3, several sieve pores 5 are densely covered on sieve plate 4,5 size of sieve pore is greater than the crab (E in just investment pond 1
Phase), less than the crab (A phase) after the completion of husking；The both ends of 1 wedged bottom of pond are equipped with collecting box 6, low temperature or set in collecting box 6
There is quick-freezing plant.
The operational process for producing pond is as follows: sieve plate 4 is moved to the other end from 1 one end of pond along guide rail 2 with crossbeam 3, husking
Phase (E phase) the i.e. lesser crab of figure passes through sieve pore 5 and stays in pond 1, and postmolt (A phase) i.e., the biggish crab of figure was with sieve plate 4
It is moved to 1 edge of pond, the cover board for being collected simultaneously case 6 automatically opens, and crab slides from sieve plate 4 into collecting box 6, and crab is in collecting box 6
In carry out refrigeration or it is quick-frozen；Sieve plate 4 is slided with crossbeam 3 along 2 period of guide rail back and forth, repeats above-mentioned movement, and round trip cycle is 2 ~ 3 small
When, not entering postmolt (B phase) with the crab of postmolt (A phase) is advisable, until crab all in pond 1 is pulled out, completes
The automatic collection work of soft crab.
In above-mentioned production pond, sieve plate 4 selects hard plastic board, such as common PE, PP, PVC, ABS, edge and sieve pore 5
Locate round and smooth grinding process, first is that environmental protection is not perishable, second is that reducing damage of the sieve plate 4 to crab；Sieve plate 4 and 1 width of pond are basic
It is equal, two side clearance very littles, to guarantee to pull out all crabs；It is detachable between sieve plate 4 and crossbeam 3, i.e. mountable tool on crossbeam 3
There is the sieve plate 4 of different size sieve pore 5, is suitable for the crab of different building shape；The structure of similar driving, power dress can be selected in crossbeam 3
Preferred motor is set, while having the advantages that easy to control, performance is stable with electromagnetic brake to realize power failure latch functions；It collects
Case 6 uses double-layer cover plate, that is, transitional storehouse structure, to guarantee preferable cryogenic property；The movement of sieve plate 4 and 6 cover plate opening and closing of collecting box
Synchronization action can using close to switch etc. electric devices realize, can also using programming realize.
The sea of identical figure, identical moulting cycle is caught swimming crab and concentrates cultivation as production soft crab by the present embodiment
Raw material has the characteristics that at low cost compared with the subadult crab in cultivating pool；Using with soft crab automatic collection function
Production pond is produced automatically, and without artificial 24 hours " tailing ", labor intensity of workers was also controlled, reduce integral into
This, conducive to the popularization of soft crab production.
Obviously, the above embodiment of the present invention is intended to be merely illustrative of the present example, and not to the present invention
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no need and unable to give poor example to all embodiments.And these belong to this
The connotation changes and variations that derived from of invention still fall within protection scope of the present invention.
Claims (4)
1. a kind of method using wild crab production soft crab, it is characterized in that having following steps:
A) wild crab is caught, and is divided into different batches by Individual Size, moulting cycle, is launched in different storage pond, holding ponds respectively；
B) it when growing to ecdysis with a batch of crab in storage pond, holding pond, is launched in production pond, crab is launched to described
Before producing pond, chela lesser in the crab claw is cut off；
C) soft crab that figure becomes larger due to husking in production pond is periodically salvaged using sieve plate；The production pond includes pond
(1), pond (1) the bottom both ends are wedged bottom, and being equipped in the pond (1) can be in the sieve plate that pond (1) both ends reciprocatingly slide
(4), it is densely covered with several sieve pores (5) on the sieve plate (4), sieve pore (5) size is greater than E ecdysis, crab phase (01) just put into, small
Postmolt A phase crab (02) after the completion of husking；Sieve plate (4) side and pond (1) side wall, sieve plate (4) bottom edge and water
The gap of pond (1) bottom is respectively less than 1cm；Pond (1) two sides are equipped with the guide rail (2) parallel with pond (1) bottom, described to lead
Crossbeam (3) across pond (1) is installed, the crossbeam (3) is equipped with driving device and can move back and forth along guide rail (2) on rail (2)
Dynamic, the sieve plate (4) is mounted below crossbeam (3)；The both ends of the pond (1) are equipped with collecting box (6), the collecting box
(6) the height suitable for reading lower than the pond (1) edge；
D) soft crab salvaged is quick-frozen.
2. the method according to claim 1 using wild crab production soft crab, it is characterised in that: the storage pond, holding pond is daily
Fresh and alive trash fish is fed, water one third is changed, and pulls dead crab out in time.
3. it is according to claim 1 using wild crab production soft crab method, it is characterised in that: in step b, daily from
5-10 crab observation is selected in storage pond, holding pond at random at this time to launch the crab of storage pond, holding pond to production if having 50% or more in ecdysis
Chi Zhong.
4. the method according to claim 1 using wild crab production soft crab, it is characterised in that: the salvaging week of step c
Phase is 2 ~ 3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010357.1A CN106719204B (en) | 2017-01-06 | 2017-01-06 | A method of soft crab is produced using wild crab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710010357.1A CN106719204B (en) | 2017-01-06 | 2017-01-06 | A method of soft crab is produced using wild crab |
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| Publication Number | Publication Date |
|---|---|
| CN106719204A CN106719204A (en) | 2017-05-31 |
| CN106719204B true CN106719204B (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710010357.1A Active CN106719204B (en) | 2017-01-06 | 2017-01-06 | A method of soft crab is produced using wild crab |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108377947A (en) * | 2018-04-20 | 2018-08-10 | 莆田市天然星农业开发有限公司 | Soft crab pond culturing system and method |
| CN110710480A (en) * | 2019-11-29 | 2020-01-21 | 江苏省海洋水产研究所 | Production method of soft-shell crabs |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276710A (en) * | 1979-11-29 | 1981-07-07 | Yunker Michael P | Aquaculture pond and harvester |
| CN101836609A (en) * | 2010-05-14 | 2010-09-22 | 广东海洋大学 | Method for breeding soft-shell blue crabs |
| CN105145423A (en) * | 2015-07-31 | 2015-12-16 | 江苏省淡水水产研究所 | Method for quickly determining various ecdysis periods of river crabs |
-
2017
- 2017-01-06 CN CN201710010357.1A patent/CN106719204B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276710A (en) * | 1979-11-29 | 1981-07-07 | Yunker Michael P | Aquaculture pond and harvester |
| CN101836609A (en) * | 2010-05-14 | 2010-09-22 | 广东海洋大学 | Method for breeding soft-shell blue crabs |
| CN105145423A (en) * | 2015-07-31 | 2015-12-16 | 江苏省淡水水产研究所 | Method for quickly determining various ecdysis periods of river crabs |
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| CN106719204A (en) | 2017-05-31 |
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Application publication date: 20170531 Assignee: Zhejiang Haihan Ecological Technology Co.,Ltd. Assignor: Zhejiang Marine Fisheries Research Institute Contract record no.: X2022330000259 Denomination of invention: A method for producing soft shell crab from wild crab Granted publication date: 20191008 License type: Common License Record date: 20220706 |
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Application publication date: 20170531 Assignee: Haida (Zhoushan) Water Environment Technology Co.,Ltd. Assignor: Zhejiang Marine Fisheries Research Institute Contract record no.: X2022980015426 Denomination of invention: A method for producing soft-shell crabs by using wild crabs Granted publication date: 20191008 License type: Common License Record date: 20220920 |
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