CN103004652A - Method for observing ecdysis period of crayfish - Google Patents
Method for observing ecdysis period of crayfish Download PDFInfo
- Publication number
- CN103004652A CN103004652A CN2012103860284A CN201210386028A CN103004652A CN 103004652 A CN103004652 A CN 103004652A CN 2012103860284 A CN2012103860284 A CN 2012103860284A CN 201210386028 A CN201210386028 A CN 201210386028A CN 103004652 A CN103004652 A CN 103004652A
- Authority
- CN
- China
- Prior art keywords
- cray
- water
- holes
- transparent
- transparent water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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 method for observing an ecdysis period of crayfish, and the method comprises the following steps of sterilizing a culture facility; placing larva of crayfish; culturing, observing and recording; and statistically analyzing every ecdysis period of the crayfish crowd. The method is simple to operate, low in requirement of experimental device, capable of counting the ecdysis period of the crayfish, convenient for scientifically analyzing the statistics data to obtain an accurate conclusion, capable of objectively researching the ecdysis period of the crayfish, more scientific that the group search of the ecydysis period of the crayfish and capable of providing evidence for factorized culture of soft-shell crayfish.
Description
Technical field
The present invention relates to aquaculture field, be specifically related to a kind of cray method in decortication cycle of observing.
Background technology
As everyone knows, duricrust cray edible rate is low, produces a large amount of discarded objects, and very low in China's cray recovery and reuse of waste rate, exerts heavy pressures on to environment.And soft shell cray edible part is high, and discarded object is few, but since cray from nibbling property mutually, produce for the soft shell cray and bring certain difficulty.
Through a large amount of NULLs, under the condition of normally feeding, understand the moulting cycle of the whole growth cycle of cray, take appropriate measures a large amount of ecdysises in cray colony, reduce oneself mutually nibbling property, improve survival rate, just can provide reference for industrial aquaculture soft shell cray.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of observing the cray moulting cycle, this method is simple to operate, lower to the experimental facilities requirement, but can accurately count the cray moulting cycle, so that further statistical data is analysed scientifically, draw accurate conclusion, study the cray moulting cycle with colony and have more science, for industrial aquaculture soft shell cray provides foundation.
The present invention is achieved through the following technical solutions:
A kind of method of observing the cray moulting cycle may further comprise the steps,
(1) sterilization: the facility that the whole series is used for observing the cray moulting cycle: the liquor potassic permanganate that comprises transparent water vat, transparent water tumbler with holes, heating apparatus, oxygen-increasing device immersion 20～30mg/L carried out disinfection about 30 minutes, put into water after the taking-up again and soaked 24 hours;
(2) place the cray juvenile prawn: transparent water tumbler with holes is evenly put in transparent water vat, heating apparatus, oxygen-increasing device are put into transparent water vat, then in transparent water vat and transparent water tumbler with holes, add water, water level is to 2/3 place of transparent water tumbler height with holes, regulate heating apparatus, the control water temperature is constant in 25 ℃, open oxygen-increasing device, regulate the water body dissolved oxygen amount at 2.7～2.9mg/L, after water quality reaching standard is stable, the cray juvenile prawn that just breaks away from parent is put into transparent water tumbler with holes by one every glass;
(3) raise, observed and recorded: regularly drop into bait in every morning and afternoon, daily ration, feeding quantity is 3～5% of cray whose body weight, keeps water temperature constant 25 ℃ and water body dissolved oxygen amount at 2.7～2.9mg/L, water quality reaching standard; Observed cray situation of casting off a skin every 4 hours, and make a record;
(4) according to the observed and recorded data of step (3), the each moulting cycle of statistical analysis cray colony.
The further improvement project of the present invention is, after water quality reaching standard is stablized in the step (2), first indivedual cray juvenile prawns that just break away from parent are put into part transparent water tumbler with holes, without unusual, the cray juvenile prawn that again will just break away from again parent is put into transparent water tumbler with holes by one every glass after 24 hours.
The present invention further improvement project is that described cray juvenile prawn is chosen same shrimp with ovums cray juvenile prawn colony that hatch out and that just broken away from parent.
The present invention further improvement project is that water quality reaching standard is by add water, change the water assurance in good time in the step (3).
The present invention further improvement project is, the cup end diameter of described transparent water tumbler with holes is equipped with according to the Individual Size of each vegetative stage of cray, and the cup footpath is than about the long 1cm of cray body.
The present invention further improvement project is, after the water filling, adds the water peanut branch about 8cm in step (2) in each transparent water tumbler with holes in transparent water vat and the transparent water tumbler with holes.
The present invention further improvement project is that the stable 7 day time of needs of described water quality reaching standard, water standard meets pollution-free food aquiculture fresh water water quality NY5051-2001.
The present invention further improvement project is, the described bait throwing in time be every morning 9:00 and afternoon 17:00.
The present invention compared with prior art has following obvious advantage:
One, the facility of observation cray moulting cycle of the present invention is by heating apparatus, oxygen-increasing device, the with holes transparent water tumbler of transparent water vat and different model forms, transparent water vat is an independently ecosystem, transparent water tumbler with holes is the relatively independent ecosystem, heating apparatus can make water temperature keep constant temperature under any temperature, oxygen-increasing device can provide dissolved oxygen for breeding water body, make water body regulate as required the water body dissolved oxygen amount, place transparent water tumbler to isolate the cray of Different Individual, according to each vegetative stage of cray, the transparent plastic cup that is provided with the hole that changes different model into is raised, be convenient to clearly statistical observation that Different Individual cray moulting cycle is changed, for industrial aquaculture soft shell cray provides reference.
Two, the present invention chooses by same shrimp with ovums cray juvenile prawn colony that hatch and that just broken away from parent, this batch cray juvenile prawn is put into each transparent water tumbler of the facility of observing the cray moulting cycle, with the individual isolated rearing of each cray, be convenient to observe, add up, the otherness of cray juvenile prawn has been avoided in maximization, can more objectively study the cray moulting cycle, study the cray moulting cycle with colony and have more science.
Embodiment
The facility that is used for observation cray moulting cycle among the present invention comprises clear glass water vat, transparent plastic water tumbler with holes, heater and oxygen-increasing device, described heater and oxygen-increasing device are located in the transparent water vat, and described transparent plastic water tumbler is arranged in clear glass water vat bottom.
The long 60cm of described clear glass water vat, wide 30cm, high 30cm,
The cup end diameter of described transparent plastic water tumbler is equipped with Multiple Type according to the Individual Size of each vegetative stage of cray, cup end diameter is respectively: 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13cm, cup is high to be: 15cm.
The research method implementation process:
(1) sterilization: the facility that the whole series is used for observing the cray moulting cycle: the liquor potassic permanganate that comprises transparent water vat, transparent water tumbler with holes, heating apparatus, oxygen-increasing device immersion 25mg/L carried out disinfection 30 minutes, put into water after the taking-up again and soaked 24 hours;
(2) place the cray juvenile prawn: transparent water tumbler with holes is evenly put in transparent water vat, with heating apparatus, oxygen-increasing device is put into transparent water vat, then in transparent water vat and transparent water tumbler with holes, add water, water level is to 2/3 place of transparent water tumbler height with holes, in each transparent water tumbler with holes, add the water peanut branch about 8cm, regulate heating apparatus, the control water temperature is constant in 25 ℃, open oxygen-increasing device, regulate the water body dissolved oxygen amount at 2.8mg/L, after water quality reaching standard is stable, general water quality reaching standard is stable to need 7 day time, water standard meets pollution-free food aquiculture fresh water water quality NY5051-2001, first indivedual cray juvenile prawns that just break away from parent are put into part transparent water tumbler with holes, without unusual, again same shrimp with ovums hatched out again after 24 hours, and the cray juvenile prawn colony that has just broken away from parent puts into transparent water tumbler with holes by one every glass;
(3) raise, observed and recorded: every morning 9:00 and afternoon 17:00 regularly drop into bait, daily ration, feeding quantity is 3～5% of cray whose body weight, depending on the cray situation adjustment of searching for food, keep water temperature constant 25 ℃ and water body dissolved oxygen amount at 2.7～2.9mg/L, add water in the feeding process in good time, change water, meet pollution-free food aquiculture fresh water water quality NY5051-2001 to guarantee water standard; Individual Size according to each vegetative stage of cray is changed the perforated plastic water tumbler in good time, and the cup footpath is than about the long 1cm of cray body; Observed cray situation of casting off a skin every 4 hours, and make a record;
(4) according to the observed and recorded data of step (3), the each moulting cycle of statistical analysis cray colony.
Claims (8)
1. method of observing the cray moulting cycle is characterized in that: may further comprise the steps,
(1) sterilization: the facility that the whole series is used for observing the cray moulting cycle: the liquor potassic permanganate that comprises transparent water vat, transparent water tumbler with holes, heating apparatus, oxygen-increasing device immersion 20～30mg/L carried out disinfection about 30 minutes, put into water after the taking-up again and soaked 24 hours;
(2) place the cray juvenile prawn: transparent water tumbler with holes is evenly put in transparent water vat, heating apparatus, oxygen-increasing device are put into transparent water vat, then in transparent water vat and transparent water tumbler with holes, add water, water level is extremely about 2/3 place of transparent water tumbler height with holes, regulate heating apparatus, the control water temperature is constant in 25 ℃, open oxygen-increasing device, regulate the water body dissolved oxygen amount at 2.7～2.9mg/L, after water quality reaching standard is stable, the cray juvenile prawn that just breaks away from parent is put into transparent water tumbler with holes by one every glass;
(3) raise, observed and recorded: regularly drop into bait in every morning and afternoon, daily ration, feeding quantity is 3～5% of cray whose body weight, keeps water temperature constant 25 ℃ and water body dissolved oxygen amount at 2.7～2.9mg/L, water quality reaching standard; Observed cray situation of casting off a skin every 4 hours, and make a record;
(4) according to the observed and recorded data of step (3), the each moulting cycle of statistical analysis cray colony.
2. the method for observation according to claim 1 cray moulting cycle, it is characterized in that: after water quality reaching standard is stablized in the step (2), first indivedual cray juvenile prawns that just break away from parent are put into part transparent water tumbler with holes, without unusual, the cray juvenile prawn that again will just break away from again parent is put into transparent water tumbler with holes by one every glass after 24 hours.
3. the method for observation according to claim 1 cray moulting cycle, it is characterized in that: described cray juvenile prawn is chosen same shrimp with ovums cray juvenile prawn colony that hatch out and that just broken away from parent.
4. the method for observation according to claim 1 cray moulting cycle is characterized in that: water quality reaching standard is by add water, change water and guarantee in good time in the step (3).
5. the method for observation according to claim 1 cray moulting cycle, it is characterized in that: the cup end diameter of described transparent water tumbler with holes is equipped with according to the Individual Size of each vegetative stage of cray, and the cup footpath is than about the long 1cm of cray body.
6. the method for observation according to claim 1 cray moulting cycle is characterized in that: after the water filling, add the water peanut branch about 8cm in step (2) in each transparent water tumbler with holes in transparent water vat and the transparent water tumbler with holes.
7. the method for observation according to claim 1 cray moulting cycle, it is characterized in that: described water quality reaching standard is stablized the 7 day time of needs, and water standard meets pollution-free food aquiculture fresh water water quality NY5051-2001.
8. the method for observation according to claim 1 cray moulting cycle is characterized in that: the described bait throwing in time be every morning 9:00 and afternoon 17:00.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103860284A CN103004652A (en) | 2012-10-12 | 2012-10-12 | Method for observing ecdysis period of crayfish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103860284A CN103004652A (en) | 2012-10-12 | 2012-10-12 | Method for observing ecdysis period of crayfish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103004652A true CN103004652A (en) | 2013-04-03 |
Family
ID=47954183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103860284A Pending CN103004652A (en) | 2012-10-12 | 2012-10-12 | Method for observing ecdysis period of crayfish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103004652A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109496937A (en) * | 2018-10-19 | 2019-03-22 | 长江大学 | A kind of cray indoor culture method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001078617A (en) * | 1999-09-09 | 2001-03-27 | Toreede Service:Kk | Fishing pond, and maintenance and management of the same |
| JP2008000037A (en) * | 2006-06-21 | 2008-01-10 | Nec Fielding Ltd | System for monitoring environment in water tank for aquarium fish and method for monitoring the same environment and water tank set and monitoring server used therefor |
| CN101720708A (en) * | 2010-01-13 | 2010-06-09 | 中国海洋大学 | Method for improving molt synchronism of indoor industrially-cultured prawns |
| CN102511437A (en) * | 2011-12-16 | 2012-06-27 | 天津天资光电科技发展有限公司 | Novel solar fish tank |
| CN202476282U (en) * | 2012-03-20 | 2012-10-10 | 天津市凯胜养殖有限公司 | Juvenile prawn breeding pond |
-
2012
- 2012-10-12 CN CN2012103860284A patent/CN103004652A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001078617A (en) * | 1999-09-09 | 2001-03-27 | Toreede Service:Kk | Fishing pond, and maintenance and management of the same |
| JP2008000037A (en) * | 2006-06-21 | 2008-01-10 | Nec Fielding Ltd | System for monitoring environment in water tank for aquarium fish and method for monitoring the same environment and water tank set and monitoring server used therefor |
| CN101720708A (en) * | 2010-01-13 | 2010-06-09 | 中国海洋大学 | Method for improving molt synchronism of indoor industrially-cultured prawns |
| CN102511437A (en) * | 2011-12-16 | 2012-06-27 | 天津天资光电科技发展有限公司 | Novel solar fish tank |
| CN202476282U (en) * | 2012-03-20 | 2012-10-10 | 天津市凯胜养殖有限公司 | Juvenile prawn breeding pond |
Non-Patent Citations (6)
| Title |
|---|
| 寇祥明等: "克氏原螯虾交配行为的初步研究", 《江西农业学报》, no. 12, 15 December 2010 (2010-12-15), pages 150 - 152 * |
| 张聚涛: "不同饲料配方对克氏原螯虾幼体发育与品质的研究", 《万方数据知识服务平台扬州大学硕士学位论文》, 31 May 2012 (2012-05-31), pages 35 - 40 * |
| 江苏省海洋与渔业局编: "《江苏渔业十大主推种类 技术 模式》", 31 March 2010, article "小龙虾", pages: 7-8 * |
| 王宏田等: "《海水鱼类疾病的防治》", 31 October 2000, article "控制和消灭病原", pages: 51-52 * |
| 耿明生等: "《实用养鱼新技术》", 30 September 2009, article "小龙虾养殖", pages: 124 * |
| 陈昌福等: "《淡水小龙虾高效养殖技术图解与实例》", 31 January 2011, article "克氏原鳌虾的人工养殖", pages: 47 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105145423B (en) * | 2015-07-31 | 2019-03-01 | 江苏省淡水水产研究所 | A kind of method in quick discrimination river crab difference husking period |
| CN109496937A (en) * | 2018-10-19 | 2019-03-22 | 长江大学 | A kind of cray indoor culture method |
| CN109496937B (en) * | 2018-10-19 | 2021-09-17 | 长江大学 | Indoor crayfish breeding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1957686B (en) | Method of breeding pearls by using 6-dimethylin purine to induce triploid jibheader clams | |
| CN102573453B (en) | Method for producing viable tetraploid oysters | |
| CN105052804B (en) | A kind of bait feeding system of body length based on shrimp | |
| CN106332810A (en) | Large-scale breeding method of large-size fingerlings of Pelteobagrus fulvidraco Huangyou No.1 | |
| Ching et al. | Natural spawning, embryonic and larval development of F2 hybrid grouper, tiger grouper Epinephelus fuscoguttatus× giant grouper E. lanceolatus | |
| CN106577409A (en) | Method for inducing copepoda to produce diapause eggs | |
| CN109392775A (en) | A kind of selection being sheerly all-male hybridization Pelteobagrus fulvidraco and its parent | |
| CN101120665A (en) | Seedling culture method for fresh water pearl culturing clam | |
| CN109220902A (en) | A kind of producing method for seed of hydrostatic pressing induction rainbow trout triploid | |
| CN102948382A (en) | Method for controlling saprolegniasis of odontobutis obscura germ cells in incubation period | |
| CN103004652A (en) | Method for observing ecdysis period of crayfish | |
| CN108967285A (en) | A kind of Parent Female of Macrobrachium rosenbergii selection | |
| CN103931494A (en) | Colored cotton ovule in vitro culture method | |
| CN102090360B (en) | High-efficient induction method of tetraploid cynoglossus semilaevis fish fries | |
| CN101664022B (en) | Field trapping method and trapping carrier thereof for trapping fly parasitic wasp | |
| CN103766258A (en) | Artificial breeding method of Ruditapes variegata | |
| CN202907637U (en) | A set of facilities for observing crayfish exuviations period | |
| CN102119674B (en) | Cynoglossus semilaevis triploid fry mass inducing method | |
| CN109496922A (en) | A kind of producing method for seed of hydrostatic pressing induction rainbow trout tetraploid | |
| CN101861839B (en) | Method for artificially breeding purple nacre strain hyriopsis cumingii | |
| Singh et al. | Comparative study of available spawning methods of the giant clam Tridacna squamosa [Bivalvia: Tridacnidae] in Makogai, Fiji | |
| CN108034691A (en) | A kind of method of the abundance of microorganism in accurate counting invertebrate hemolymph | |
| CN107873593A (en) | A kind of cultural method of nucleus regenerated pearl | |
| CN104798708B (en) | Maturity promoting and artificial fertilization method for high-quality ova of starfishes | |
| CN112586413A (en) | Golden yellow seawater pearl cultivation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |