CN101228850A - Double cultivating method of blue crab - Google Patents
Double cultivating method of blue crab Download PDFInfo
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- CN101228850A CN101228850A CNA2007100098758A CN200710009875A CN101228850A CN 101228850 A CN101228850 A CN 101228850A CN A2007100098758 A CNA2007100098758 A CN A2007100098758A CN 200710009875 A CN200710009875 A CN 200710009875A CN 101228850 A CN101228850 A CN 101228850A
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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
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- 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
A method for cultivating green crabs for two harvests in one year relates to an aquiculture method, which provides a method for cultivating green crabs with two harvests in one year. The first harvest begins to stock spring seedlings from the last ten days of February to the first ten day of March, and harvests in September or October of the same year after cultivating; or the first harvest begins to stock summer seedling in May or June, and harvests in October or November of the same year after cultivating. The second harvest begins to stock autumn seedlings from September to November, and harvests from February to May of the next year after cultivating. The method includes: pool cleaning: cleaning the pool before stocking with one of quicklime and bleaching powder, etc.; water quality: dissolving at least 3mg of oxygen in each L of water with a water temperature of 18 to 25 DEG C, a salinity of 10 to 30, a pH value of 8.0 to 8.5 and a diaphaneity of 20 to 25cm; stocking density: 1000-2000/mu for the spring or summer seedlings and 3000-5000/mu for the autumn seedlings; the baits are fresh baits of small and miscellaneous fish and shrimp and low cost shellfish, etc., and are grounded twice a day in the morning or in the afternoon.
Description
Technical field
The present invention relates to a kind of aquaculture method, especially relate to a kind of one year two batches of blue crab cultivation method.
Background technology
Mud crab meat flavour deliciousness, nutritious, growth is fast, and strong stress resistance is the good breed variety of China's southeastern coast.Mud crab growth rapidly, culturing 3 wheat harvesting periods just can become commodity crab and go on the market, and cultures just can reach sexual maturity in about 8 months.Blue crab cultivation generally is one batch of breed in a year at present, and the breed pond has 100 days at least in the time that is fit to blue crab cultivation leaves unused, and causes the means of production to can not get the wasting of resources of utilization rationally.In addition, breed in a year causes the market supply time of mud crab too concentrated for one batch, makes its price glide significantly; And, do not have sufficient mud crab on the market and supply with in the harvest season unconventional mud crab.
The applicant provides a kind of cultural method of organic blue crab in the application for a patent for invention of publication number for CN1951182, cultivate water meets GB, and water temperature is 7～32 ℃ throughout the year, and seawater salinity 5～32, substrate are silt or husky mud; Select the natural juvenile crab in sea area or follow the artificial juvenile crab that organic aquaculture principle cultivates; With at least a the raising together with in mud crab and prawn, grey mullet, the razor clam of hanging, the fragrant plant mentioned in ancient texts etc., adopt and took turns in 1 year to put in a suitable place to breed at least 2 times; Feed is fresh or fresh and alive natural biological bait, select barnacle, extra large melon seeds, oyster, blue clam, short tooth clam, spiral shell, cerithium, a species of small clam living in fresh water, small fish shrimps etc. for use, the shellfish feeding volume is 20%～35% of a mud crab body weight, and small fish shrimps feeding volume is 6%～12% of a mud crab body weight; With quicklime, bleaching powder, tea seed cake etc. substrate is carried out disinfection, use probiotics improvement water quality.
The applicant provides a kind of desalted breeding method of larval crab in the application for a patent for invention of publication number for CN101040607, its step is as follows: the seed source: through desalination cultivation, can adapt to the young crab of salinity 2～10 less salts life; The crab pond requires: place things concealed in the pond, be used to increase the space that mud crab is hidden and activity is perched, disperse mud crab, minimizing is met, and improves and cultures survival rate; Condition of water quality: during the breed, water temperature is 18～30 ℃, salinity 2～15; Seed is thrown in: mud crab breeding density is 300～1800/mu; Bait: small fish shrimp and shellfish, divide every day and throw something and feed for 2～4 times.Have and culture the higher and advantage such as reduce production costs of survival rate.
Summary of the invention
The object of the present invention is to provide a kind of 1 year two batches of blue crab cultivation method can carrying out 1 year two batches of blue crab cultivation.
The present invention includes following steps:
1) aquaculture model: first batch begins to put in a suitable place to breed the spring seedling in late Febuary to early March, cultures 9-10 month harvest then; Perhaps put summer sporelings (of laminaria) in a suitable place to breed, culture 10-11 month harvest then in 5-6 month.Second batch begins to put in a suitable place to breed Qiu Miao in 9-11 month, cultures next year 2-5 month harvest.
2) breed measure:
(1) cleans up the pond: with a kind of the cleaning up the pond in quicklime, the bleaching powder etc., kill pest in the pond before putting in a suitable place to breed;
(2) water quality: dissolved oxygen is 3mg/L at least, and water temperature is 18～25 ℃, and salinity is 10～30, and pH is 8.0～8.5, and transparency is 20～25cm;
(3) breeding density: spring seedling, summer sporelings (of laminaria) are 1000～2000/mu, and Qiu Miao is 3000～5000/mu;
(4) bait is raised: day throwing amount of raising a small fish shrimp is controlled at 5%～12% of mud crab TBW, and fresh foods such as low value band shell shellfish are controlled at 20%～35% of mud crab TBW, divide 2 bait throwing in material sooner or later;
(5) every the two weeks microecological water matter improved formulations of splashing, to keep water quality;
3) harvest: reach the commodity crab specification when culturing mud crab, get final product harvest, can catch stay greatly little.
Described low value band shell shellfish can be selected from oyster, push up at least a in clam, blue clam, short tooth clam, the spiral shell etc. partially.Throw the abundance of food morning and be preferably 30%～40% of total throwing abundance of food, throw the abundance of food evening and be preferably 60%～70% of total throwing abundance of food.
It generally is one batch of breed in a year that the present invention has overcome existing blue crab cultivation, the breed pond has 100 days at least and leaves unused in the time that is fit to blue crab cultivation, cause the means of production to can not get the shortcomings of rationally utilizing such as the wasting of resources, make blue crab cultivation realize the purpose of 1 year regrowth hair, for market provides more sufficient mud crab product.
Embodiment
Embodiment 1
South Fujian Province, first batch begins to put in a suitable place to breed the spring seedling 3～April, cultures harvest in 8～October then; Second batch begins to put in a suitable place to breed Qiu Miao 9～November, cultures harvest in 2～April in 1 year.Breed measure: 1. clean up the pond; Clean up the pond with quicklime etc. before putting in a suitable place to breed, kill pest in the pond.2. water quality; Dissolved oxygen 3.2mg/L; Water temperature is 18～20 ℃; Salinity 10～20, pH8.0～8.2; Transparency 22～23cm. is breeding density 3.: spring seedling, summer sporelings (of laminaria) are 1000～1300/mu; Qiu Miao is 2800～3000/mu.4. bait is raised: day throwing amount of raising a small fish shrimp generally is controlled at 8%～10% of mud crab TBW; Low value band shell shellfish is selected oyster for use, pushes up fresh foods such as clam and blue clam partially, can be controlled in 25%～30% of mud crab TBW.Divide sooner or later and throw for 2 times, early upslide 30%～35%), throw 65%～70% evening.Throw the amount of raising according to the mud crab situation adjustment of ingesting.5. every the two weeks microecological water matter improved formulations of splashing, to keep water quality.6. harvest: reach the commodity crab specification when culturing mud crab,, can catch and stay for a short time greatly, catch fertilizer and stay thin listing according to the market price.
Embodiment 2
South Fujian Province, first batch begins to put in a suitable place to breed summer sporelings (of laminaria) 5～June, cultures harvest in 9～November then; Second batch begins to put in a suitable place to breed Qiu Miao 10～November, cultures harvest in 4～May then.Breed measure: 1. clean up the pond; Clean up the pond with quicklime etc. before putting in a suitable place to breed, kill pest in the pond.2. water quality; Dissolved oxygen 3.1mg/L; Water temperature is 20～23 ℃; Salinity 15～20, pH8.3～8.5; Transparency 20～22cm. is breeding density 3.: spring seedling, summer sporelings (of laminaria) are 1600～2000/mu; Qiu Miao is 2500～2600/mu.4. bait is raised: day throwing amount of raising a small fish shrimp generally is controlled at 5%～8% of mud crab TBW; Low value band shell shellfish is selected fresh foods such as oyster, short tooth clam and spiral shell for use, can be controlled in 30%～35% of mud crab TBW.Divide sooner or later and throw for 2 times, early upslide 32%～36% throws 63%～66% evening.Throw the amount of raising according to the mud crab situation adjustment of ingesting.5. every the two weeks microecological water matter improved formulations of splashing, to keep water quality.6. harvest: reach the commodity crab specification when culturing mud crab,, can catch and stay for a short time greatly, catch fertilizer and stay thin listing according to the market price.
Embodiment 3
Chao-Shan Area, first batch begins to put in a suitable place to breed the spring seedling March, cultures harvest in 8～October then; Second batch begins to put in a suitable place to breed Qiu Miao 9～November, cultures harvest in 2～April then.Breed measure: 1. clean up the pond; Clean up the pond with quicklime and bleaching powder etc. before putting in a suitable place to breed, kill pest in the pond.2. water quality; Dissolved oxygen 3mg/L; Water temperature is 22～25 ℃; Salinity 25～30, pH8.2～8.3; Transparency 23～25cm. is breeding density 3.: spring seedling, summer sporelings (of laminaria) are 1300～1500/mu; Qiu Miao is 2000～2400/mu.4. bait is raised: day throwing amount of raising a small fish shrimp generally is controlled at 10%～12% of mud crab TBW; Low value band shell shellfish is selected from oyster, pushes up fresh foods such as clam, blue clam, spiral shell partially, can be controlled in 20%～25% of mud crab TBW.Divide sooner or later and throw for 2 times, early upslide 36%～40% throws 60%～64% evening.Throw the amount of raising according to the mud crab situation adjustment of ingesting.5. every the two weeks microecological water matter improved formulations of splashing, to keep water quality.6. harvest: reach the commodity crab specification when culturing mud crab,, can catch and stay for a short time greatly, catch fertilizer and stay thin listing according to the market price.
Embodiment 4
Chao-Shan Area, similar to Example 3, its difference is that first batch begins to put in a suitable place to breed the spring seedling May, cultures harvest in 9～October then; Second batch begins to put in a suitable place to breed Qiu Miao 10～November, cultures harvest in 3～May then.
Claims (3)
1. 1 year two batches of blue crab cultivation method is characterized in that may further comprise the steps:
1) aquaculture model: first batch begins to put in a suitable place to breed the spring seedling in late Febuary to early March, cultures 9-10 month harvest then; Perhaps put summer sporelings (of laminaria) in a suitable place to breed in 5-6 month, culture 10-11 month harvest then, second batch begins to put in a suitable place to breed Qiu Miao in 9-11 month, cultures next year 2-5 month harvest;
2) breed measure:
(1) cleans up the pond: with a kind of the cleaning up the pond in quicklime, the bleaching powder etc., kill pest in the pond before putting in a suitable place to breed;
(2) water quality: dissolved oxygen is 3mg/L at least, and water temperature is 18～25 ℃, and salinity is 10～30, and pH is 8.0～8.5, and transparency is 20～25cm;
(3) breeding density: spring seedling, summer sporelings (of laminaria) are 1000～2000/mu, and Qiu Miao is 3000～5000/mu;
(4) bait is raised: day throwing amount of raising a small fish shrimp is controlled at 5%～12% of mud crab TBW, and fresh foods such as low value band shell shellfish are controlled at 20%～35% of mud crab TBW, divide 2 bait throwing in material sooner or later;
(5) every the two weeks microecological water matter improved formulations of splashing, to keep water quality;
3) harvest: reach the commodity crab specification when culturing mud crab, get final product harvest, can catch stay greatly little.
2. as claimed in claim 1 one year two batches of blue crab cultivation method is characterized in that described low value band shell shellfish is selected from oyster, pushes up at least a in clam, blue clam, short tooth clam, the spiral shell partially.
3. as claimed in claim 1 one year two batches of blue crab cultivation method is characterized in that throwing morning the abundance of food and is total 30%～40% of abundance of food of throwing, and throws the abundance of food evening and is total 60%～70% of abundance of food of throwing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100098758A CN101228850A (en) | 2007-11-23 | 2007-11-23 | Double cultivating method of blue crab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100098758A CN101228850A (en) | 2007-11-23 | 2007-11-23 | Double cultivating method of blue crab |
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| CN101228850A true CN101228850A (en) | 2008-07-30 |
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| CNA2007100098758A Pending CN101228850A (en) | 2007-11-23 | 2007-11-23 | Double cultivating method of blue crab |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102763616A (en) * | 2012-07-27 | 2012-11-07 | 厦门大学 | Method for preventing green crabs from killing each other |
| CN103875555A (en) * | 2014-03-20 | 2014-06-25 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | High-yield efficient breeding method for river crabs |
| CN104996352A (en) * | 2015-07-03 | 2015-10-28 | 融安县渔业技术推广站 | Fish pond treatment method for culturing fishes in hilly pond |
| CN107361001A (en) * | 2017-08-29 | 2017-11-21 | 浙江省海洋水产研究所 | The cultural method of Portunus trituberculatus Miers two crops in one year |
| CN109997745A (en) * | 2018-08-16 | 2019-07-12 | 三门县琴海农业科技发展有限公司 | Blue crab cultivation method |
| CN113728952A (en) * | 2021-09-25 | 2021-12-03 | 无为优良农业科技有限公司 | Efficient crab breeding method |
| CN114190312A (en) * | 2021-12-10 | 2022-03-18 | 上海海洋大学 | Method for cultivating large-size Sinonovacula constricta Lamarck in seawater pond |
-
2007
- 2007-11-23 CN CNA2007100098758A patent/CN101228850A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102763616A (en) * | 2012-07-27 | 2012-11-07 | 厦门大学 | Method for preventing green crabs from killing each other |
| CN103875555A (en) * | 2014-03-20 | 2014-06-25 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | High-yield efficient breeding method for river crabs |
| CN104996352A (en) * | 2015-07-03 | 2015-10-28 | 融安县渔业技术推广站 | Fish pond treatment method for culturing fishes in hilly pond |
| CN107361001A (en) * | 2017-08-29 | 2017-11-21 | 浙江省海洋水产研究所 | The cultural method of Portunus trituberculatus Miers two crops in one year |
| CN109997745A (en) * | 2018-08-16 | 2019-07-12 | 三门县琴海农业科技发展有限公司 | Blue crab cultivation method |
| CN113728952A (en) * | 2021-09-25 | 2021-12-03 | 无为优良农业科技有限公司 | Efficient crab breeding method |
| CN114190312A (en) * | 2021-12-10 | 2022-03-18 | 上海海洋大学 | Method for cultivating large-size Sinonovacula constricta Lamarck in seawater pond |
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Open date: 20080730 |