CN202907637U - A set of facilities for observing crayfish exuviations period - Google Patents
A set of facilities for observing crayfish exuviations period Download PDFInfo
- Publication number
- CN202907637U CN202907637U CN 201220522162 CN201220522162U CN202907637U CN 202907637 U CN202907637 U CN 202907637U CN 201220522162 CN201220522162 CN 201220522162 CN 201220522162 U CN201220522162 U CN 201220522162U CN 202907637 U CN202907637 U CN 202907637U
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- China
- Prior art keywords
- holes
- transparent water
- water
- observing
- cray
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Abstract
The utility model discloses a set of facilities for observing a crayfish exuviations period. The set of facilities for observing the crayfish exuviations period comprises a transparent water vat, a transparent water cups with holes, a warming device and an oxygen adding device. The warming device and the oxygen adding device are arranged in the transparent water vat, and the water cups with holes are distributed at the bottom of the transparent water vat. The transparent water vat is an independent ecosystem, the water cups with holes form a relatively independent ecosystem, the warming device can enable water temperature to be consistent at any temperature, and the oxygen adding device can provide dissolved oxygen for an aquatic water and adjusts water body dissolved oxygen amount according to demands. Different crayfishes are arranged in the transparent water cups with holes to be isolated, different sizes of transparent water cups with holes are replaced for feeding according to growing stages of the crayfishes, and the set of facilities for observing the crayfish exuviations period facilitates clear statistical observation of changes of the crayfishes in the crayfish exuviations period and provides a reference for industrially aquaculture of soft-shell crayfishes.
Description
Technical field
The utility model relates to aquaculture field, is specifically related to the facility that a cover is used for observing the cray moulting cycle.
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 problems to be solved in the utility model provides the facility that a cover is used for observing the cray moulting cycle, is convenient to the statistical observation that clearly Different Individual cray moulting cycle is changed.
The utility model is achieved through the following technical solutions:
One cover is used for observing the facility of cray moulting cycle, comprises transparent water vat, transparent water tumbler with holes, heating apparatus and oxygen-increasing device, and described heating apparatus and oxygen-increasing device are located in the transparent water vat with holes, and described transparent water tumbler with holes is arranged in the bottom of transparent water vat.
The further improvement project of the utility model is that described heating apparatus is heating rod.
The utility model further improvement project is that described oxygen-increasing device is oxygen increasing tube.
The utility model further improvement project is that described transparent water tumbler with holes is the transparent plastic water tumbler.
The utility model further improvement project is that the cup end diameter of described transparent water tumbler with holes is equipped with Multiple Type according to the Individual Size of each vegetative stage of cray.
The utility model compared with prior art has following obvious advantage:
The utility model 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 with holes to isolate the cray of Different Individual, according to each vegetative stage of cray, the transparent cup with holes 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.
Description of drawings
Fig. 1 is the utility model schematic perspective view.
Fig. 2 is the utility model vertical view.
Fig. 3 is the transparent water tumbler of the utility model one cover Multiple Type.
Embodiment
As shown in Figure 1 and Figure 2, glass water vat 1, transparent plastic water tumbler 2 with holes, heating rod 3 and the oxygen increasing tube 4 of comprising of the present utility model, described heating rod 3 and oxygen increasing tube 4 are located in the transparent water vat 1, and described transparent plastic water tumbler 2 with holes is arranged in the bottom of clear glass water vat 1.
Described clear glass water vat 1 long 60cm, wide 30cm, high 30cm,
As shown in Figure 3, the cup end diameter of the transparent water tumbler 2 of described perforated plastic 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 observation 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 20～30mg/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 that is provided with the transparent water tumbler height in hole, 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 (5)
1. a cover is used for observing the facility of cray moulting cycle, it is characterized in that: comprise transparent water vat (1), transparent water tumbler with holes (2), heating apparatus (3) and oxygen-increasing device (4), described heating apparatus (3) and oxygen-increasing device (4) are located in the transparent water vat (1), and described transparent water tumbler with holes (2) is arranged in the bottom of transparent water vat (1).
2. the facility for observing the cray moulting cycle according to claim 1, it is characterized in that: described heating apparatus (3) is heating rod.
3. the facility for observing the cray moulting cycle according to claim 1, it is characterized in that: described oxygen-increasing device (4) is oxygen increasing tube.
4. the facility for observing the cray moulting cycle according to claim 1, it is characterized in that: described transparent water tumbler with holes (2) is transparent plastic water tumbler with holes.
5. the facility for observing the cray moulting cycle according to claim 1, it is characterized in that: the cup end diameter of described transparent water tumbler with holes (2) is equipped with Multiple Type according to the Individual Size of each vegetative stage of cray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522162 CN202907637U (en) | 2012-10-12 | 2012-10-12 | A set of facilities for observing crayfish exuviations period |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522162 CN202907637U (en) | 2012-10-12 | 2012-10-12 | A set of facilities for observing crayfish exuviations period |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202907637U true CN202907637U (en) | 2013-05-01 |
Family
ID=48156000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220522162 Expired - Lifetime CN202907637U (en) | 2012-10-12 | 2012-10-12 | A set of facilities for observing crayfish exuviations period |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202907637U (en) |
-
2012
- 2012-10-12 CN CN 201220522162 patent/CN202907637U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |