CN102812912A - Large-scale family juvenile crab soil pool culture method for eriocheir sinensis - Google Patents
Large-scale family juvenile crab soil pool culture method for eriocheir sinensis Download PDFInfo
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- CN102812912A CN102812912A CN2012103084620A CN201210308462A CN102812912A CN 102812912 A CN102812912 A CN 102812912A CN 2012103084620 A CN2012103084620 A CN 2012103084620A CN 201210308462 A CN201210308462 A CN 201210308462A CN 102812912 A CN102812912 A CN 102812912A
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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
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- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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Abstract
The invention relates to a large-scale family juvenile crab soil pool culture method for eriocheir sinensis. The method is characterized by comprising the following steps that firstly, a soil pool with good water body flowability is selected to be used as a culture pool; secondly, bolting silk net piece is used for cutting the soil pool into a plurality of partition spaces which do not influence the water body flowability; thirdly, each family oogenesis female crab is singly placed into a cage, then, a cage containing the female crab is hung in the corresponding partition spaces, the water temperature and the seawater salinity are controlled, the water body flowability is maintained for young crab releasing; fourthly, the cage containing the female crab is moved away after the young crab releasing, the family larva culture is carried out until the larva grows into megalopa; and finally, the water desalting and the final night lamp light trapping are carried out in the original partition space, and the juvenile crab culture is completed. The method provided by the invention has the advantages that the requirement on a hatching pool is low, but the larva production environment is directly connected with the pool bottom, the pool bottom microbe purification capability is good, and the production environment is excellent, so few pools can be used for producing more family juvenile crabs, and in addition, the emergence rate and the survival rate of each family are greatly improved.
Description
Technical field
The present invention relates to a kind of culturing and reproducing of aquatic products, the breeding method of especially a kind of Eriocheir sinensia juvenile crab, the extensive family juvenile crab soil of specifically a kind of Eriocheir sinensia pond breeding method.
Background technology
Eriocheir sinensia is a kind of aquatic products that liked by the masses.Along with the continuous development of Eriocheir sinensia aquaculture industry, breeding enterprise and raiser are in great demand to the good juvenile crab of seed selection.Family selective breeding is one of main method of Eriocheir sinensia excellent strain seed selection at present.Existing Eriocheir sinensia family selective breeding seedling raising manners is broadly divided into single pond grows seedlings and two kinds of net cage seedling nurseries, and grow seedlings and be meant the female crab of the oogenesis of post-coitum is placed single native pond respectively in wherein single pond, because required native pond quantity is many; Cost is high, and the breeding environment homogeneity is poor, so people generally adopt is net cage (pentahedron; End face is a unenclosed construction) to grow seedlings, net cage seedling nursery is that the female crab of oogenesis is loaded in the net cage, puts the growth of the children and the young and all in net cage, carries out; Because net cage is suspended in the water body and can not touches at the end, the inner self-purification capacity of net cage is poor, and the feed of throwing something and feeding stops up mesh at the bottom of can sinking to net cage; And then influence net cage water environment water body quality, influence emergence rate and survival rate, to this at present except increasing the water body oxygen content; Quickening does not still have good solution outside the water body flowability, and this just causes the emergence rate of the female crab young of present each family not high; Can not large-scale production family juvenile crab, production cost is high.
Summary of the invention
The objective of the invention is to existing single pond and there is survival rate in net cage family juvenile crab production method, the rate variance of emerging, the problem that cost is high invent and is a kind ofly directly carried out the native pond of the extensive family juvenile crab of the Eriocheir sinensia breeding method that juvenile crab produces at Tu Chizhong.
Technical scheme of the present invention is:
The extensive family juvenile crab soil of a kind of Eriocheir sinensia pond breeding method is characterized in that it may further comprise the steps:
At first, select the Tu Chi of a water body good fluidity to use the pond as cultivating;
Secondly; With 60-80 purpose bolting silk net sheet above-mentioned Tu Chi is divided into several and does not influence the partition that water body flows; Continue to use wire or cable pull on each bolting silk net sheet and exceed the water surface more than 30 centimetres; The lower edge of each bolting silk net sheet connects a gabion, and the gabion pile things on is filled with stone in the gabion in the fluting at the bottom of the pond;
The 3rd, the female crab of oogenesis is put in the cage, the cage that female crab will be housed again hangs in the corresponding partition, controls water temperature and seawater salinity and keep water body to flow to put the children;
The 4th, put and remove the cage that female crab is housed after the children finishes, carry out larval culture, until growing up to megalops larva;
At last, in former partition, carrying out water body desalination traps with final night lights and promptly accomplishes the cultivation of juvenile crab.
The area of described Tu Chi is 500-1500.
Described each partition is of a size of 3 meters * 10 meters, hangs up the female crab of 1 oogenesis during each cuts off.
The upper edge of described each bolting silk net sheet exceeds the water surface more than 30 centimetres.
Put preceding 15 days of children with chlorophos, the tea tree dregs of rice, bleaching powder gradation sterilization female crab being put into cut off, to remove crustacean, fish and harmful microorganism.
Beneficial effect of the present invention:
The present invention is through directly originating in the female young that crab is put of family oogenesis in the native pond that separates with the net sheet; The water body of each unit all is in flow regime; Microorganism at the bottom of the pond has good self-purification capacity; Help improving the survival rate of the young, can make per mu yield juvenile crab family more than 20, each family juvenile crab output reaches more than 1 kilogram.
The present invention requires lowly to the hatchery, but because young production environment directly and at the bottom of the pond is joined, the microbial cleaning ability is good at the bottom of the pond; Production environment is good; Therefore emergence rate and survival rate all are improved largely, and breeding water body is in flow regime, and it is good to breed the condition homogeneity; Environmental deviation is less between each family, and family is grown seedlings and also had comparativity between the output effect.
Description of drawings
Fig. 1 is the structural representation of partition net sheet of the present invention.
Fig. 2 is the structural representation of Tu Chi of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Shown in Fig. 1-2.
The extensive family juvenile crab soil of a kind of Eriocheir sinensia pond breeding method, it may further comprise the steps:
At first, select the Tu Chi of a water body good fluidity to use the pond as cultivating;
Secondly; With 60-80 purpose bolting silk net sheet 1 above-mentioned native pond 2 is divided into several and does not influence the partition 3 that water body flows; As shown in Figure 2, continue to use 4 tensions of wire or drag-line on each bolting silk net sheet 1 and exceed the water surface more than 30 centimetres (wherein optimum height be 40 centimetres or more than), the lower edge of each bolting silk net sheet 1 connects a gabion 5; Gabion 5 pile things ons are filled with stone 6 in the gabion in the fluting at the bottom of the pond; As shown in Figure 1, be that example may be partitioned into 20 3 meters * 10 meters partition with 600 square metres Tu Chi, coverage of water is good with 500-1500 square metre.
The 3rd; Put preceding about 15 days of children with chlorophos, the tea tree dregs of rice, bleaching powder gradation sterilization female crab being put into cut off, to remove crustacean, fish and harmful microorganism, again oogenesis mother crab to be put in the cage; The cage that female crab will be housed again hangs in the corresponding partition; Hang 1 female crab during each cuts off, control water temperature and seawater salinity and keep water body to flow and put the children, should carry out micropore oxygenation during conditions permit to improve incubation rate; Put about 3 days of the time of children.
The 4th, put and remove the cage that female crab is housed after the children finishes, carry out larval culture, cultivate until V phase zoea through I phase zoea, carry out the megalops larva cultivation at last, until growing up to megalops larva;
At last, in former partition, megalops larva being carried out water body desalination traps with final night lights and promptly accomplishes the cultivation of juvenile crab.
Details are as follows:
Mating ratio: hero: female=1:2-3.In the early November in every year temperature be lower than 15 and gather healthy, back of the body cyan, plumpness is good, leg is hard male and female crab when spending, male and female are separately put in a suitable place to breed in the seawater pond, put close crab 300-500 jin in a suitable place to breed for every mu, cut piece with the fresh seawater trash fish and throw something and feed reinforced cultivating more than 10 days.When seawater water temperature 9-11 spends at the beginning of mid-November to 12 month, the male and female crab of each family mark is put into independent crab pot mating according to the family mating table, can accomplish through mating in three days during water temperature stability, After mating crab plastron and carapace are fitted not tight; Very closely widely different with the applying before the mating; Female crab copulatory opening periphery adularescent material should be spermatophore, female crab ovulation in 5-6 hour after mating is accomplished; The female crab completion of ovulating basically in 1-2 days, indivedual female crabs do not lay eggs.The female crab of oogenesis is concentrated cultivation, and every mu of density is about 500 jin of female crabs, and seawater salinity is cut piece with fresh seawater trash fish (like eupleurogrammus muticus) and thrown something and fed at 15-20 ‰, preferably micropore oxygenation.To about March 20 next year, cover cement pit or little Tu Chi with Polypropylence Sheet, the female crab of oogenesis is put into temperature raising, breeding density is approximately 20/square meter, makes water temperature than the high 2-3 degree in open-air pond.Temperature raising through about 20 days can obviously impel the synchronism with batch female crab egg development, helps putting in batches the children.To April 10, female crab extension cage is put into single juvenile crab cultivation Tu Chi partition shown in Figure 2 put the children.Put the preceding 15 Tianchi water of children with chlorophos, the tea tree dregs of rice, bleaching powder gradation sterilization, remove crustacean, fish and harmful microorganism.Flea 1, flea 2 all are food with the phytoplankton, and flea 3 is a food with the wheel animalcule later on.Megalops larva need to finish 7 day time from accomplishing shell to desalination, and the megalops larva seedling age begins desalination in the time of 2-3 days, and desalination needs 4 days left and right sides time in former partition, during need continuous feeding and change water.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (5)
1. the extensive family juvenile crab soil of Eriocheir sinensia pond breeding method is characterized in that it may further comprise the steps:
At first, select the Tu Chi of a water body good fluidity to use the pond as cultivating;
Secondly; With 60-80 purpose bolting silk net sheet above-mentioned Tu Chi is divided into several and does not influence the partition that water body flows; Continue to use wire or cable pull on each bolting silk net sheet and exceed the water surface more than 30 centimetres; The lower edge of each bolting silk net sheet connects a gabion, and the gabion pile things on is filled with stone in the gabion in the fluting at the bottom of the pond;
The 3rd, the female crab of oogenesis is put in the cage, the cage that female crab will be housed again hangs in the corresponding partition, controls water temperature and seawater salinity and keep water body to flow to put the children;
The 4th, put and remove the cage that female crab is housed after the children finishes, carry out larval culture, until growing up to megalops larva;
At last, carrying out water body desalination traps with final night lights and promptly accomplishes the cultivation of juvenile crab.
2. method according to claim 1, the area that it is characterized in that described Tu Chi is 500-1500 square metre.
3. method according to claim 1 is characterized in that described each partition is of a size of 3 meters * 10 meters, hangs up the female crab of 1 oogenesis during each cuts off.
4. method according to claim 1 is characterized in that the upper edge of described each bolting silk net sheet exceeds the water surface more than 30 centimetres.
5. method according to claim 1 is characterized in that putting preceding 15 days of children with chlorophos, the tea tree dregs of rice, bleaching powder gradation sterilization female crab being put into cut off, and removes crustacean, fish and harmful microorganism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210308462.0A CN102812912B (en) | 2012-08-28 | 2012-08-28 | Large-scale family juvenile crab soil pool culture method for eriocheir sinensis |
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| CN201210308462.0A CN102812912B (en) | 2012-08-28 | 2012-08-28 | Large-scale family juvenile crab soil pool culture method for eriocheir sinensis |
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| CN102812912A true CN102812912A (en) | 2012-12-12 |
| CN102812912B CN102812912B (en) | 2014-05-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103416334A (en) * | 2013-08-05 | 2013-12-04 | 江苏省淡水水产研究所 | Method for improving uniformity of sizes of juvenile crabs |
| CN106172095A (en) * | 2016-07-04 | 2016-12-07 | 淮安市苏泽生态农业有限公司 | A kind of selection of big specification ChangJiang River crab breeding |
| CN109601450A (en) * | 2019-01-29 | 2019-04-12 | 钦州学院 | The method for improving Eriocheir hepuensis breeding survival rate and grazing rate by control salinity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296742A (en) * | 2000-12-28 | 2001-05-30 | 中国科学院南京地理与湖泊研究所 | Technique for breeding stage-5 young crab in hot house |
| CN102106283A (en) * | 2011-01-26 | 2011-06-29 | 中国水产科学研究院东海水产研究所 | Layered cage rearing device and using method thereof |
| CN202760008U (en) * | 2012-08-27 | 2013-03-06 | 江苏省淡水水产研究所 | Soil pond rearing device of Chinese mitten crab large-scale family juvenile crabs |
-
2012
- 2012-08-28 CN CN201210308462.0A patent/CN102812912B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296742A (en) * | 2000-12-28 | 2001-05-30 | 中国科学院南京地理与湖泊研究所 | Technique for breeding stage-5 young crab in hot house |
| CN102106283A (en) * | 2011-01-26 | 2011-06-29 | 中国水产科学研究院东海水产研究所 | Layered cage rearing device and using method thereof |
| CN202760008U (en) * | 2012-08-27 | 2013-03-06 | 江苏省淡水水产研究所 | Soil pond rearing device of Chinese mitten crab large-scale family juvenile crabs |
Non-Patent Citations (1)
| Title |
|---|
| 顾孝连: "我国蟹类土池育苗技术研究进展", 《海洋渔业》, 30 January 2012 (2012-01-30), pages 110 - 116 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103416334A (en) * | 2013-08-05 | 2013-12-04 | 江苏省淡水水产研究所 | Method for improving uniformity of sizes of juvenile crabs |
| CN106172095A (en) * | 2016-07-04 | 2016-12-07 | 淮安市苏泽生态农业有限公司 | A kind of selection of big specification ChangJiang River crab breeding |
| CN106172095B (en) * | 2016-07-04 | 2021-07-27 | 淮安市苏泽生态农业有限公司 | Breeding method of large-size Yangtze river system river crab fine breeds |
| CN109601450A (en) * | 2019-01-29 | 2019-04-12 | 钦州学院 | The method for improving Eriocheir hepuensis breeding survival rate and grazing rate by control salinity |
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| CN102812912B (en) | 2014-05-07 |
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