CN103734043A - High-density crab seed breeding method - Google Patents
High-density crab seed breeding method Download PDFInfo
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- CN103734043A CN103734043A CN201310684704.0A CN201310684704A CN103734043A CN 103734043 A CN103734043 A CN 103734043A CN 201310684704 A CN201310684704 A CN 201310684704A CN 103734043 A CN103734043 A CN 103734043A
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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 high-density crab seed breeding method which includes the following steps that firstly, vermin killing and desilting of a pond are achieved; secondly, water is enriched; thirdly, crab seeds are cast into the pond; fourthly, the crab seeds are bred; fifthly, daily management is achieved; sixthly, the crab seeds are taken out of the pond. According to the high-density crab seed breeding method, the quality and nutrition of a water body are improved through the scientific method and the scientific steps so as to adapt to high-density crab seed breeding, and high benefits are obtained with low cost.
Description
Technical field
The present invention relates to technical field of aquaculture, particularly a kind of high density juvenile crab cultural method.
Background technology
From megalops larva namely what is often called lake, the juvenile crab of supporting the cultivation of the interchangeable pool generally needs the time of about 4 months, because megalops larva individuality is less, to having relatively high expectations of water quality and raising, so general cultivation density is not high, to improve survival rate.But the juvenile crab demand in market is still larger now, only has the high-density breeding of realization just can reduce the cost, and raises the efficiency.So it is imperative proposing a kind of high density juvenile crab cultural method.
Summary of the invention
The technical issues that need to address of the present invention are that existing juvenile crab cultivation density is lower.
For solving the problems of the technologies described above, the invention provides a kind of high density juvenile crab cultural method, comprise the following steps:
1) pond desilting is removed the evil: put seedling and before one month, thoroughly removed the mud in pond, then by 140～160 pounds/acre, be sprinkled into disinfecting drug, remove harmful organisms, strive food biology and pathogenic organisms, then larger pond is separated by the water surface of every 10 mu;
2) rich water: put seedling first 7 days～10 days, after disappearing, drug toxicity to be sterilized intakes 10 centimetres～20 centimetres with 60 object bolting silk net filtrations, then put 10 kilograms/10 mu of first 2 days～3 days of seedling fertilising water cream, or nitrogen fertilizer application 20 mg/litre, or execute the organic manure fermenting as chicken manure, with this, cultivate foundation bait, make Chi Shui be yellowish-brown or yellow green, 5 centimetres～10 centimetres of transparencies;
3) juvenile crab is thrown the pool: by brought up the megalops larva of being transported back by aerobic case after desalination by seawater, throw the pool, by the density of 3～6 pounds/acre, throw in, pond water temperature remains on 16～20 ℃ of left and right;
4) juvenile crab is raised: regularly drop into bait, regularly thermometric, regularly adds calcium and be beneficial to juvenile crab growth;
5) daily management: on average monthly the pond water surface is raise 5～8 centimetres;
6) go out the pool: the juvenile crab growing up to after 8～9 months goes out the pool.
High density juvenile crab cultural method of the present invention, by method and the step of science, improves quality and the nutrition of water body, to adapt to highdensity juvenile crab cultivation, with lower cost, obtains higher return.
As the preferred technical solution of the present invention, in step 1, first sterilize in pond, by 150 pounds/acre, is sprinkled into disinfectant powder; In step 2, also can throw in colored clam, the shellfishes such as razor clam of hanging as raising together with kind, also can bring up wheel animalcule, in order to the regulation and control of cultivation middle and later periods water quality, substrate or as living body bait; The size of megalops larva described in step 3 is 5mmX5mm, and throws in by the density of 4 pounds/acre.Wheel animalcule is a kind of microzooplankton that is widely used as living bait in the artificial breeding stages such as fish, shrimp, crabs, can be used as the bait of megalops larva, also can purify water.
Wherein in pond, plant multiple pasture and water, comprise chlorella, water peanut, good algae, celestial body algae.Plantation chlorella can be used as the bait of crab, there is the effect of water transfer and removing toxic substances, can increase dissolved oxygen in water, one does the effect of crab immunity, and plantation water peanut can improve crab output, cultivates good algae, the celestial body algae feed as crab, plantation pasture and water also can prevent blue-green algae, blue-green algae oxygen consumption, and after dead, the heavy pool is poisonous, can polluted-water.
As a further improvement on the present invention, on every mu of ground of pond bottom, evenly place 26～30 anti-blue-green algae bricks, within 3～4 years, change once, preferably on every mu of ground of pond bottom, evenly place 28 anti-blue-green algae bricks.Anti-blue-green algae brick can effectively prevent blue-green algae, economical and practical, and within 3 or four years, just needs to change once, very convenient.
In the process of juvenile crab cultivation, single pool area exceedes 10 mu appropriate to the occasionly to be inserted the end with plastic wire the large pool is separated, to prevent that juvenile crab is concentrated causes local density excessive because the variation of water temperature and water quality makes, causes mutually and kills and devour.Juvenile crab cultivation is generally thrown the pool in annual May, pond water temperature remains on 18 ℃ of left and right, supports and goes out the pool in about 9 months, 1 jin of 70 left and right, approximately 15mmX15mm size; And put megalops larva and should put in a suitable place to breed in the first tenday period of a month in May or the middle ten days, temperature is high, growth is fast, survival rate is high, and juvenile crab is put in a suitable place to breed and must carry out at fine day in addition.
High density juvenile crab cultural method of the present invention, can be pond middle-high density cultivation megalops larva, to adapt to the development trend of current crab cultivation, improve stocking density, raise the efficiency, reduce costs, the juvenile crab that goes out the pool after 8 to 9 months just can be changed in the pond of crab cultivation and be continued to form into crab, high density juvenile crab cultural method of the present invention utilizes the method for science and step to raise the efficiency, and is the developing direction of crab cultivation industry.
Embodiment
Describe the preferred technical solution of the present invention below in detail.
High density juvenile crab cultural method of the present invention, comprises the following steps:
1) pond desilting is removed the evil: put seedling and before one month, thoroughly removed the mud in pond, then by 150 pounds/acre, be sprinkled into disinfecting drug, remove harmful organisms, strive food biology and pathogenic organisms, then larger pond is separated by the water surface of every 10 mu;
2) rich water: put seedling first 7 days～10 days, after disappearing, drug toxicity to be sterilized intakes 10 centimetres～20 centimetres with 60 object bolting silk net filtrations, then put 10 kilograms/10 mu of first 2 days～3 days of seedling fertilising water cream, or nitrogen fertilizer application 20 mg/litre, or execute the organic manure fermenting as chicken manure, with this, cultivate foundation bait, make Chi Shui be yellowish-brown or yellow green, 5 centimetres～10 centimetres of transparencies, also can throw in colored clam, the shellfishes such as razor clam of hanging are as raising together with kind, also can bring up wheel animalcule, in order to the regulation and control of cultivation middle and later periods water quality, substrate or as living body bait;
3) juvenile crab is thrown the pool: by brought up the megalops larva of being transported back by aerobic case after desalination by seawater, throw the pool, by the density of 4 pounds/acre, throw in, the size of described megalops larva is 5mmX5mm, and pond water temperature remains on 16～20 ℃ of left and right;
4) juvenile crab is raised: regularly drop into bait, regularly thermometric, regularly adds calcium and be beneficial to juvenile crab growth;
5) daily management: on average monthly the pond water surface is raise 5～8 centimetres;
6) go out the pool: the juvenile crab growing up to after 8～9 months goes out the pool.
Wherein in pond, plant multiple pasture and water, comprise chlorella, water peanut, good algae, celestial body algae, on every mu of ground of pond bottom, evenly place 28 anti-blue-green algae bricks, within 3～4 years, change once.
High density juvenile crab cultural method of the present invention, by method and the step of science, improves quality and the nutrition of water body, to adapt to highdensity juvenile crab cultivation, with lower cost, obtains higher return.
Wheel animalcule is a kind of microzooplankton that is widely used as living bait in the artificial breeding stages such as fish, shrimp, crabs, can be used as the bait of megalops larva, also can purify water.
Plantation chlorella can be used as the bait of crab, there is the effect of water transfer and removing toxic substances, can increase dissolved oxygen in water, one does the effect of crab immunity, and plantation water peanut can improve crab output, cultivates good algae, the celestial body algae feed as crab, plantation pasture and water also can prevent blue-green algae, blue-green algae oxygen consumption, and after dead, the heavy pool is poisonous, can polluted-water.
Anti-blue-green algae brick can effectively prevent blue-green algae, economical and practical, and within 3 or four years, just needs to change once, very convenient.
In the process of juvenile crab cultivation, single pool area exceedes 10 mu appropriate to the occasionly to be inserted the end with plastic wire the large pool is separated, to prevent that juvenile crab is concentrated causes local density excessive because the variation of water temperature and water quality makes, causes mutually and kills and devour.Juvenile crab cultivation is generally thrown the pool in annual May, pond water temperature remains on 18 ℃ of left and right, supports and goes out the pool in about 9 months, 1 jin of 70 left and right, approximately 15mmX15mm size; And put megalops larva and should put in a suitable place to breed in the first tenday period of a month in May or the middle ten days, temperature is high, growth is fast, survival rate is high, and juvenile crab is put in a suitable place to breed and must carry out at fine day in addition.
High density juvenile crab cultural method of the present invention, can be pond middle-high density cultivation megalops larva, to adapt to the development trend of current crab cultivation, improve stocking density, raise the efficiency, reduce costs, the juvenile crab that goes out the pool after 8 to 9 months just can be changed in the pond of crab cultivation and be continued to form into crab, high density juvenile crab cultural method of the present invention utilizes the method for science and step to raise the efficiency, and is the developing direction of crab cultivation industry.
Claims (7)
1. a high density juvenile crab cultural method, is characterized in that comprising the following steps:
1) pond desilting is removed the evil: put seedling and before one month, thoroughly removed the mud in pond, then by 140～160 pounds/acre, be sprinkled into disinfecting drug, remove harmful organisms, strive food biology and pathogenic organisms, then larger pond is separated by the water surface of every 10 mu;
2) rich water: put seedling first 7 days～10 days, after disappearing, drug toxicity to be sterilized intakes 10 centimetres～20 centimetres with 60 object bolting silk net filtrations, then put 10 kilograms/10 mu of first 2 days～3 days of seedling fertilising water cream, or nitrogen fertilizer application 20 mg/litre, or execute the organic manure fermenting as chicken manure, with this, cultivate foundation bait, make Chi Shui be yellowish-brown or yellow green, 5 centimetres～10 centimetres of transparencies;
3) juvenile crab is thrown the pool: by brought up the megalops larva of being transported back by aerobic case after desalination by seawater, throw the pool, by the density of 3～6 pounds/acre, throw in, pond water temperature remains on 16～20 ℃ of left and right;
4) juvenile crab is raised: regularly drop into bait, regularly thermometric, regularly adds calcium and be beneficial to juvenile crab growth;
5) daily management: on average monthly the pond water surface is raise 5～8 centimetres;
6) go out the pool: the juvenile crab growing up to after 8～9 months goes out the pool.
2. high density juvenile crab cultural method as claimed in claim 1, is characterized in that: in step 1, first sterilize in pond, by 150 pounds/acre, is sprinkled into disinfectant powder.
3. high density juvenile crab cultural method as claimed in claim 1, is characterized in that: in step 2, also can throw in colored clam, the shellfishes such as razor clam of hanging as raising together with kind, also can bring up wheel animalcule, in order to the regulation and control of cultivation middle and later periods water quality, substrate or as living body bait.
4. high density juvenile crab cultural method as claimed in claim 1, is characterized in that: the size of megalops larva described in step 3 is 5mmX5mm, and throws in by the density of 4 pounds/acre.
5. high density juvenile crab cultural method as claimed in claim 1 or 2 or 3 or 4, is characterized in that: in pond, plant multiple pasture and water, comprise chlorella, water peanut, good algae, celestial body algae.
6. high density juvenile crab cultural method as claimed in claim 5, is characterized in that: on every mu of ground of pond bottom, evenly place 26～30 anti-blue-green algae bricks, within 3～4 years, change once.
7. high density juvenile crab cultural method as claimed in claim 6, is characterized in that: on every mu of ground of pond bottom, evenly place 28 anti-blue-green algae bricks.
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| CN201310684704.0A CN103734043A (en) | 2013-12-09 | 2013-12-09 | High-density crab seed breeding method |
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| CN201310684704.0A CN103734043A (en) | 2013-12-09 | 2013-12-09 | High-density crab seed breeding method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104094884A (en) * | 2014-08-02 | 2014-10-15 | 淮南市施家湖水产养殖中心 | High-density young crab culture method |
| CN104255617A (en) * | 2014-10-15 | 2015-01-07 | 镇江市丹徒区高桥镇农村合作经济组织联合会 | High-yield cultivation method of crabs |
| CN104488780A (en) * | 2014-12-08 | 2015-04-08 | 刘长华 | Freshwater crab breeding method |
| CN105145444A (en) * | 2015-10-27 | 2015-12-16 | 盐城工学院 | Culture method of Helice tientsinensis megalopae |
| CN105961255A (en) * | 2016-06-13 | 2016-09-28 | 莆田秀屿区群韬农业技术开发有限公司 | Pond culture method for ruditapes philippinarum |
| CN105994087A (en) * | 2016-07-08 | 2016-10-12 | 天津现代晨辉科技集团有限公司 | Fish, shrimp and vegetable symbiotic culture method |
| CN106719207A (en) * | 2017-01-23 | 2017-05-31 | 岱山县通衢水产食品有限公司 | A kind of swimming crab abscisic acid |
| CN107637554A (en) * | 2017-09-30 | 2018-01-30 | 安徽永言河蟹原种场 | A kind of cultural method for promoting river crab growth |
-
2013
- 2013-12-09 CN CN201310684704.0A patent/CN103734043A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104094884A (en) * | 2014-08-02 | 2014-10-15 | 淮南市施家湖水产养殖中心 | High-density young crab culture method |
| CN104094884B (en) * | 2014-08-02 | 2016-04-13 | 淮南市施家湖水产养殖中心 | High density children crab cultural method |
| CN104255617A (en) * | 2014-10-15 | 2015-01-07 | 镇江市丹徒区高桥镇农村合作经济组织联合会 | High-yield cultivation method of crabs |
| CN104488780A (en) * | 2014-12-08 | 2015-04-08 | 刘长华 | Freshwater crab breeding method |
| CN105145444A (en) * | 2015-10-27 | 2015-12-16 | 盐城工学院 | Culture method of Helice tientsinensis megalopae |
| CN105961255A (en) * | 2016-06-13 | 2016-09-28 | 莆田秀屿区群韬农业技术开发有限公司 | Pond culture method for ruditapes philippinarum |
| CN105994087A (en) * | 2016-07-08 | 2016-10-12 | 天津现代晨辉科技集团有限公司 | Fish, shrimp and vegetable symbiotic culture method |
| CN106719207A (en) * | 2017-01-23 | 2017-05-31 | 岱山县通衢水产食品有限公司 | A kind of swimming crab abscisic acid |
| CN107637554A (en) * | 2017-09-30 | 2018-01-30 | 安徽永言河蟹原种场 | A kind of cultural method for promoting river crab growth |
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Application publication date: 20140423 |
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