CN103918580A - Yangtze River crab culture method - Google Patents
Yangtze River crab culture method Download PDFInfo
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- CN103918580A CN103918580A CN201310015179.3A CN201310015179A CN103918580A CN 103918580 A CN103918580 A CN 103918580A CN 201310015179 A CN201310015179 A CN 201310015179A CN 103918580 A CN103918580 A CN 103918580A
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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 discloses a novel Yangtze River crab culture method. Yangtze River crabs are cultured by the aid of natural Yangtze River water, different natural baits are respectively thrown in different growing periods of the Yangtze River crabs, natural water temperature is adopted during winter greenhouse culture, and the water is not heated. Compared with an existing Yangtze River crab culture method, the novel Yangtze River crab culture method has the advantage that the cultured Yangtze River crabs are long in growing period and closer to wild Yangtze River crabs, so that original ecological natural Yangtze River crabs with delicious taste, large specifications, short growth cycle and full crab meat and crab cream and without chemical substances such as hormone harmful to human bodies are cultured.
Description
Technical field
The present invention relates to technical field of aquaculture, more specifically relate to a kind of cultural method of changjiang crab.
Background technology
Yangtze River Water crab is the special aquatic products product that on domestic and international market, supply falls short of demand, and especially in recent years, the fast development with export-oriented economy that improves constantly along with people's living standard, increases day by day to the demand of changjiang crab.Due to the minimizing day by day of natural resources, various places have been carried out the cultivation and the cultivation that becomes crab of artificial juvenile crab widely, and become an important channel of the vast agriculture in China Yangtze Area, fisherman's science enrichment.At present, manually support crab mode and adopt constant temperature cultivation more, feed with artifical compound feed, cultivation water source is phreatic water and river.Therefore the river crab specification of traditional mode cultivation is little, and mouthfeel is poor, and artifical compound feed contains antibiotic, hormone etc. more, and harm eater is healthy.
Summary of the invention
The object of the invention is to cultivate specification large, growth cycle is short, crab oil, and crab cream is plentiful and not containing the natural changjiang crab of ecosystem of the harmful substance such as hormone.
The present invention seeks to realize like this:
A, cultivation place: at the beginning of 3 months by the end of February, crab kind is put the initial stage in a suitable place to breed, and the depth of water is controlled at 0.6-0.8m, and the 5-7 month depth of water is at 0.8-1.0m, and the 8-10 month depth of water rests between 1.0-1.2m.Spring and autumn, changes weekly water 1 time, deepens 30-40cm at every turn;
B, spring put in a suitable place to breed: select specification large annual March, energetic, without damage by disease and insect, and the high-quality changjiang crab kind that step is complete;
C, juvenile crab source: all choose the juvenile crab of fishing for from the Changjiang river;
D, bait throw in: at changjiang crab, be main nursing for the first time to take for the second time the animal baits such as small fish shrimp between exuvial period, for the third time to throwing something and feeding soya bean between the 4th exuvial period, corn is main, peels with fishes and shrimps for the 5th time, and the animal baits such as spiral shell are main.
Described changjiang crab breeding process all adopts natural Yangtze River Water cultivation.
The whole process of described changjiang crab adopts natural temperature cultivation.
Adopt changjiang crab cultural method provided by the invention, because whole breeding process comprises seed selection process, it is all the growing environment of the wild changjiang crab of simulation, adopt natural Yangtze River Water, whole breeding process does not carry out manual control to water temperature, and feed with natural bait, the crab specification of therefore cultivating is large, and growth cycle is short, crab oil, crab cream is plentiful and containing the harmful chemical substance such as hormone.
Embodiment
The cultivation of Eriocheir sinensia of take is example:
Select specification large annual March, energetic, without damage by disease and insect, and the high-quality Eriocheir sinensia kind that step is complete, juvenile crab is fished for from the Changjiang river.At the initial stage of putting in a suitable place to breed, the depth of water is controlled at 0.7m, and the 5-7 month depth of water is at 0.8-1.0m, and the 8-10 month depth of water rests between 1.0-1.2m.Spring and autumn, changes weekly water 1 time, deepens 30-40cm at every turn.While changing water, want row limit, limit to fill with, change water temperature difference not over ± 5 ℃.Eriocheir sinensia, be main nursing for the first time to take for the second time the animal baits such as small fish shrimp between exuvial period, for the third time to throwing something and feeding soya bean between the 4th exuvial period, corn is main, and the 5th decortication is with fishes and shrimps, and the animal baits such as spiral shell are main; Whole process adopts natural temperature cultivation.
Claims (3)
1. a changjiang crab cultural method, is characterized in that comprising following steps:
A, cultivation place: at the beginning of 3 months by the end of February, crab kind is put the initial stage in a suitable place to breed, and the depth of water is controlled at 0.6-0.8m, and the 5-7 month depth of water is at 0.8-1.0m, and the 8-10 month depth of water rests between 1.0-1.2m.Spring and autumn, changes weekly water 1 time, deepens 30-40cm at every turn;
B, spring put in a suitable place to breed: select specification large annual March, energetic, without damage by disease and insect, and the high-quality changjiang crab kind that step is complete;
C, juvenile crab source: all choose the juvenile crab of fishing for from the Changjiang river;
D, bait throw in: at changjiang crab, be main nursing for the first time to take for the second time the animal baits such as small fish shrimp between exuvial period, for the third time to throwing something and feeding soya bean between the 4th exuvial period, corn is main, peels with fishes and shrimps for the 5th time, and the animal baits such as spiral shell are main.
2. changjiang crab cultural method according to claim 1, is characterized in that: described changjiang crab breeding process all adopts natural Yangtze River Water cultivation.
3. according to claim 1 or described changjiang crab cultural method, it is characterized in that: the whole process of described changjiang crab adopts natural temperature cultivation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015179.3A CN103918580A (en) | 2013-01-16 | 2013-01-16 | Yangtze River crab culture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310015179.3A CN103918580A (en) | 2013-01-16 | 2013-01-16 | Yangtze River crab culture method |
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| Publication Number | Publication Date |
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| CN103918580A true CN103918580A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310015179.3A Pending CN103918580A (en) | 2013-01-16 | 2013-01-16 | Yangtze River crab culture method |
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| CN (1) | CN103918580A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106386602A (en) * | 2016-08-29 | 2017-02-15 | 山东胜伟园林科技有限公司 | Method for cultivating river crab with saline-alkali land paddy field returned water |
| CN108605876A (en) * | 2018-05-15 | 2018-10-02 | 九江凯瑞生态农业开发有限公司 | A kind of cultural method of river crab |
-
2013
- 2013-01-16 CN CN201310015179.3A patent/CN103918580A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106386602A (en) * | 2016-08-29 | 2017-02-15 | 山东胜伟园林科技有限公司 | Method for cultivating river crab with saline-alkali land paddy field returned water |
| CN108605876A (en) * | 2018-05-15 | 2018-10-02 | 九江凯瑞生态农业开发有限公司 | A kind of cultural method of river crab |
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Application publication date: 20140716 |