CN115443929A - Freshwater crayfish fertilized egg incubator and use method thereof - Google Patents
Freshwater crayfish fertilized egg incubator and use method thereof Download PDFInfo
- Publication number
- CN115443929A CN115443929A CN202211264966.7A CN202211264966A CN115443929A CN 115443929 A CN115443929 A CN 115443929A CN 202211264966 A CN202211264966 A CN 202211264966A CN 115443929 A CN115443929 A CN 115443929A
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- Prior art keywords
- incubator
- net cage
- inverted cone
- diameter
- cone net
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- 241000238017 Astacoidea Species 0.000 title claims abstract description 32
- 239000013505 freshwater Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 14
- 235000013601 eggs Nutrition 0.000 claims abstract description 41
- 208000034699 Vitreous floaters Diseases 0.000 claims description 18
- 241000238557 Decapoda Species 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000004698 Polyethylene Substances 0.000 claims description 14
- -1 polyethylene Polymers 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000004575 stone Substances 0.000 claims description 11
- 238000011534 incubation Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009360 aquaculture Methods 0.000 abstract description 2
- 244000144974 aquaculture Species 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000009395 breeding Methods 0.000 description 10
- 230000001488 breeding effect Effects 0.000 description 10
- 230000012447 hatching Effects 0.000 description 4
- 102000002322 Egg Proteins Human genes 0.000 description 3
- 108010000912 Egg Proteins Proteins 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 210000004681 ovum Anatomy 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000001706 oxygenating effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000336315 Cistanche salsa Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000017448 oviposition Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of aquaculture. The invention provides a freshwater crayfish fertilized egg incubator and a using method thereof. The incubator has the advantages of simple and practical manufacturing process, convenient manufacturing, transportation and storage, easy mastering of the setting method, and capability of improving the utilization rate of the fertilized eggs of the freshwater crayfish and reducing the seedling cost.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a freshwater crayfish fertilized egg incubator and a using method thereof.
Background
The freshwater crayfish has strong consciousness in territory, has the habits of mutual attack and mutual killing, the escape behavior of the oviposition crayfish when being attacked causes serious egg drop, and the utilization rate of fertilized eggs is low. At present, freshwater crayfish oosperm hatching is mostly the incubation of naturally laying eggs in soil pond or cement pond and the hatching pond of growing seedlings scrapes the ovum and aerifys the incubation, and soil pond or cement pond naturally lay eggs, incubate and stamp out the ovum and seriously cause the oosperm utilization ratio low, and the hatching is aerifyd to the pond of growing seedlings scrapes the ovum and then will invest in and build the facility of growing seedlings and cause the cost increase of growing seedlings.
Disclosure of Invention
The invention aims to provide a freshwater crayfish fertilized egg incubator and a using method thereof, and solves the problems of low utilization rate of fertilized eggs and increase of seedling raising cost.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a freshwater crayfish fertilized egg incubator which comprises an inverted cone net cage, floaters, connecting ropes and an inflation system, wherein the inverted cone net cage and the floaters are connected in series through the connecting ropes, the floaters are positioned on two sides of the inverted cone net cage, and the inflation system is positioned at the bottom of the inverted cone net cage.
Preferably, the diameter of the upper opening of the inverted cone net cage is 90-110 cm, and the diameter of the lower opening is 4-6 cm.
Preferably, a metal ring with the diameter of 90-110 cm is fixed at the upper opening of the inverted cone net cage, the lower opening is made into a slipknot, and a metal ring with the diameter of 8-12 cm is fixed at the inner side of the net cage 5-6 cm above the lower opening.
Preferably, the floater is a floating ball with the diameter of 8-12 cm.
Preferably, the connecting rope is a polyethylene mesh.
Preferably, the inflation system consists of an air pump, an air pipe and air stones, the air pump is equipped according to 4-6 w of each inverted cone net cage, and the air stones are located at the bottom of the inverted cone net cages and fixed in slipknots at the lower openings of the inverted cone net cages.
The invention also provides a using method of the incubator, which comprises the following steps: putting the incubator into water and ventilating, putting fertilized shrimp eggs into the incubator after 20 to 28 hours, and finishing incubation after 10 to 15 days.
Preferably, the hatchers are placed in parallel in the water, and the interval between two strings of hatchers is 3-5 m.
Preferably, the number of fertilized shrimp eggs put in each inverted cone net cage is 2 to 3 ten thousand.
The invention provides a freshwater crayfish fertilized egg incubator and a using method thereof. The incubator has the advantages of simple and practical manufacturing process, convenient manufacturing, transportation and storage, easy mastering of the setting method, and capability of improving the utilization rate of the fertilized eggs of the freshwater crayfish and reducing the seedling cost.
Drawings
FIG. 1 is a schematic view of a freshwater crayfish fertilized egg incubator, wherein (1) is a connecting rope, (2) is a floater, (3) is an inverted cone net cage, (4) is air stone, (5) is an air pipe, (6) is an air pump, and (4), (5) and (6) form an air charging system.
Detailed Description
The invention provides a freshwater crayfish fertilized egg incubator which comprises an inverted cone net cage, floaters, connecting ropes and an inflation system, wherein the inverted cone net cage and the floaters are connected in series through the connecting ropes, the floaters are positioned on two sides of the inverted cone net cage, and the inflation system is positioned at the bottom of the inverted cone net cage.
In the invention, the inverted cone net cage is preferably composed of a polyethylene box body and two metal circular frames.
In the present invention, the polyethylene box body is preferably sewn by using a 40-mesh polyethylene bolting silk net.
In the invention, the diameter of the upper opening of the inverted cone net cage is preferably 90-110 cm, more preferably 100cm, and the diameter of the lower opening is preferably 4-6 cm, more preferably 5cm.
In the present invention, a metal ring having a diameter of 90 to 110cm, more preferably 100cm, is preferably fixed to the upper opening of the inverted cone net cage.
In the invention, the lower opening of the inverted cone net cage is preferably made into a slipknot by using a polyethylene net wire.
In the invention, a metal ring with the diameter of 8-12 cm, preferably 10cm, is fixed on the inner side of the inverted cone net cage 5-6 cm above the lower opening of the net cage.
In the present invention, the slipknot is made of 1.5mm polyethylene mesh.
In the present invention, the fixation is preferably performed by using a 0.2mm polyethylene mesh.
In the present invention, the float is preferably a floating ball having a diameter of 8 to 12cm, and more preferably a plastic floating ball having a diameter of 10 cm.
In the present invention, the connecting cord is preferably a polyethylene mesh, and more preferably a polyethylene mesh having a diameter of 5 mm.
In the invention, the inflation system preferably comprises an air pump, an air pipe and air stones, the air pump is preferably arranged according to 4-6 w of each inverted cone net cage, the air pump is further preferably arranged according to 5w of each inverted cone net cage, and the air stones are preferably positioned at the bottom of the inverted cone net cages and fixed in slipknots at the lower openings of the inverted cone net cages.
The invention also provides a using method of the incubator, which comprises the following steps: putting the incubator into water and ventilating, putting fertilized shrimp eggs into the incubator after 20 to 28 hours, and finishing incubation after 10 to 15 days.
In the present invention, the time for putting the fertilized shrimp egg is preferably 24 hours later.
In the present invention, the time for completing incubation is preferably 12 to 13 days.
In the present invention, the hatchers are placed in parallel in the water, and the interval between the two strings of hatchers is preferably 3 to 5 meters, and more preferably 4 meters.
In the present invention, the number of fertilized shrimp eggs placed in each inverted conical cage is preferably 2 to 3 ten thousand, and more preferably 2.5 ten thousand.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
The freshwater crayfish fertilized egg incubator structurally comprises an inverted cone net cage (3), a floater (2), a connecting rope (1) and inflation systems (4), (5) and (6), wherein the inverted cone net cage (3) and the floater (2) are connected in series through the connecting rope (1), the floater (2) is positioned on two sides of the inverted cone net cage, and the inflation systems (4), (5) and (6) are positioned at the bottom of the inverted cone net cage (3); the inverted cone net cage (3) is made of 40-mesh polyethylene bolting silk net seams, the diameter of an upper opening is 100cm, the diameter of a lower opening is 5cm, and the lower opening is made into a slipknot by polyethylene net seams; a metal ring with the diameter of 100cm is fixed at the upper opening of the inverted cone net cage (3), and a metal ring with the diameter of 10cm is fixed on the inner side of the net cage 5-6 cm above the slipknot by using a polyethylene net wire with the diameter of 0.1 mm; the metal ring is formed by welding iron wires with the diameter of 3 mm; the floater (2) is a floating ball with the diameter of 10 cm; the connecting rope (1) is a polyethylene net wire; inflation system (4) - (6) comprise air pump (6), trachea (5) and air stone (4), air pump (6) are equipped with according to every back taper body box with a net 5w, the pipe diameter of trachea (5) and the gas outlet diameter adaptation of air pump (6), air stone (4) air inlet bore and trachea (5) adaptation, air stone (4) are located back taper body box with a net (3) bottom, fix in the slipknot of back taper body box with a net (3) end opening. The arrangement of the upper and lower metal rings can ensure that the incubator can be effectively opened in the water body; after the air stone arranged at the bottom is ventilated, the fertilized eggs placed in the incubator can be uniformly suspended in the water body in the incubator, and the fertilized eggs are prevented from depositing and dying due to oxygen deficiency.
The working principle of the incubator is as follows: the incubator is arranged in parallel in the freshwater crayfish parent shrimp cultivation water body, fertilized eggs with consistent colors are scraped and placed into the incubator for continuous inflation incubation, so that the phenomenon that the oosperms of the brooding parent shrimps fall due to the land and territory competition is avoided, and the utilization rate of the freshwater crayfish fertilized eggs is greatly improved; meanwhile, the land use cost and the construction investment cost for constructing a breeding pond for egg scraping and inflation incubation can be saved, so that the breeding cost of the freshwater crayfish is reduced.
Example 2
The using method of the incubator comprises the following steps:
step 1, in the breeding season of the freshwater crayfish, the hatchers are arranged in parallel in the freshwater crayfish parent shrimp breeding water body, and the interval between the two strings of hatchers is 4 meters.
And 2, after the incubator is set, starting the incubator to inflate and enrich oxygen, and ensuring that the dissolved oxygen of the water body in the incubator is more than 5 mg/l.
And 3, starting the machine, inflating and oxygenating for 24 hours, then putting freshwater crayfish fertilized eggs into the incubator, putting 2.5 million crayfish fertilized eggs into each incubator, continuously inflating and oxygenating for incubation for 15 days, and incubating the fertilized eggs to obtain shrimp seeds.
And 4, breeding the shrimp seedlings hatched on the same day to the same water body for cultivation after the fertilized eggs hatch the shrimp seedlings.
Advantages of the incubator after use:
1. the hatchers are arranged in the freshwater crayfish parent shrimp cultivation water body in parallel, fertilized eggs with the same color are scraped and placed into the hatchers for continuous inflation hatching, the phenomenon that eggs fall off caused by the struggle between the territory and the ground of the broomrape parent shrimp is avoided, and the utilization rate of the freshwater crayfish fertilized eggs can be greatly improved.
2. The incubator is used for continuously aerating and incubating freshwater crayfish fertilized eggs in the parent crayfish culture water body, so that the construction investment of the breeding pond for continuously aerating and incubating the freshwater crayfish fertilized eggs in the breeding pond is avoided, the land use cost of the breeding pond is saved, the construction investment cost of the breeding pond is saved, and the breeding cost of freshwater crayfish is reduced.
3. Freshwater crayfish fertilized eggs with consistent colors are continuously aerated in a parent shrimp cultivation water body by utilizing an incubator, and the specification uniformity of freshwater crayfish fries can be effectively improved due to consistent maturity of the fertilized eggs.
According to the embodiment, the incubator comprises the inverted cone net cage, the floater, the connecting rope and the inflation system, wherein the inverted cone net cage and the floater are connected in series through the connecting rope, the floater is located on two sides of the inverted cone net cage, and the inflation system is located at the bottom of the inverted cone net cage. The incubator disclosed by the invention is simple and practical in manufacturing process, convenient to manufacture, transport and store, easy to master in arrangement method, and capable of improving the utilization rate of freshwater crayfish fertilized eggs and reducing the seedling cost.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.
Claims (9)
1. The freshwater crayfish fertilized egg incubator is characterized by comprising an inverted cone net cage, floaters, connecting ropes and an inflation system, wherein the inverted cone net cage and the floaters are connected in series through the connecting ropes, the floaters are located on two sides of the inverted cone net cage, and the inflation system is located at the bottom of the inverted cone net cage.
2. The incubator as claimed in claim 1, wherein the diameter of the upper opening of the inverted conical net cage is 90-110 cm, and the diameter of the lower opening is 4-6 cm.
3. The incubator according to claim 2, wherein the inverted conical net cage is fixed with a metal ring with a diameter of 90-110 cm at the upper port, the lower port is made into a slipknot, and a metal ring with a diameter of 8-12 cm is fixed at the inner side of the net cage 5-6 cm above the lower port.
4. An incubator as claimed in claim 3, wherein said floats are floating balls of diameter 8-12 cm.
5. An incubator as claimed in claim 4, wherein the connecting line is a polyethylene mesh wire.
6. The incubator according to any one of claims 1 to 5, wherein the inflation system comprises an air pump, an air pipe and a gas stone, the air pump is equipped for each inverted cone net cage from 4 w to 6w, and the gas stone is located at the bottom of the inverted cone net cage and fixed in a slipknot at the lower opening of the inverted cone net cage.
7. The method of using an incubator as claimed in any one of claims 1 to 6, comprising the steps of: putting the incubator into water and ventilating, putting fertilized shrimp eggs into the incubator after 20 to 28 hours, and finishing incubation after 10 to 15 days.
8. The use of claim 7, wherein said hatchers are placed in parallel in the water, and the distance between two series of hatchers is 3-5 meters.
9. The use method according to claim 7 or 8, wherein the number of fertilized shrimp eggs put in each inverted conical cage is 2 to 3 ten thousand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264966.7A CN115443929A (en) | 2022-10-17 | 2022-10-17 | Freshwater crayfish fertilized egg incubator and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264966.7A CN115443929A (en) | 2022-10-17 | 2022-10-17 | Freshwater crayfish fertilized egg incubator and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115443929A true CN115443929A (en) | 2022-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211264966.7A Pending CN115443929A (en) | 2022-10-17 | 2022-10-17 | Freshwater crayfish fertilized egg incubator and use method thereof |
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| CN (1) | CN115443929A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144597A (en) * | 2011-05-09 | 2011-08-10 | 中国水产科学研究院黄海水产研究所 | Hatching device and method for demersal spawns of marine fishes |
| CN202979902U (en) * | 2013-01-17 | 2013-06-12 | 中国水产科学研究院黑龙江水产研究所 | Burbot fertilized egg incubator |
| CN203827874U (en) * | 2014-05-17 | 2014-09-17 | 杨成胜 | Breeding net cage for procambarus clarkii |
| CN204443644U (en) * | 2014-12-22 | 2015-07-08 | 安徽省农业科学院水产研究所 | For concealed device and the hatchery of the hatching of Procambius clarkii shrimp with ovums |
| CN211129415U (en) * | 2019-12-13 | 2020-07-31 | 哈尔滨市农业科学院 | Hatching device for red swamp crayfish eggs |
| CN112314484A (en) * | 2020-10-30 | 2021-02-05 | 武汉新河湾农业科技有限公司 | Shrimp egg in-vitro hatching device and using method thereof |
| US20210274756A1 (en) * | 2016-10-14 | 2021-09-09 | Universidad De Antofagasta | Device for confining larvae and/or aquatic organisms, system, method for keeping and cultivating them in aquatic environments |
| CN214629121U (en) * | 2020-10-26 | 2021-11-09 | 新疆维吾尔自治区水产科学研究所 | Anti-sticking fresh water incubator for fish incubation |
| CN215188836U (en) * | 2021-04-30 | 2021-12-17 | 广东海兴农集团有限公司 | In-vitro incubation device for embryos of red swamp crayfish |
-
2022
- 2022-10-17 CN CN202211264966.7A patent/CN115443929A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144597A (en) * | 2011-05-09 | 2011-08-10 | 中国水产科学研究院黄海水产研究所 | Hatching device and method for demersal spawns of marine fishes |
| CN202979902U (en) * | 2013-01-17 | 2013-06-12 | 中国水产科学研究院黑龙江水产研究所 | Burbot fertilized egg incubator |
| CN203827874U (en) * | 2014-05-17 | 2014-09-17 | 杨成胜 | Breeding net cage for procambarus clarkii |
| CN204443644U (en) * | 2014-12-22 | 2015-07-08 | 安徽省农业科学院水产研究所 | For concealed device and the hatchery of the hatching of Procambius clarkii shrimp with ovums |
| US20210274756A1 (en) * | 2016-10-14 | 2021-09-09 | Universidad De Antofagasta | Device for confining larvae and/or aquatic organisms, system, method for keeping and cultivating them in aquatic environments |
| CN211129415U (en) * | 2019-12-13 | 2020-07-31 | 哈尔滨市农业科学院 | Hatching device for red swamp crayfish eggs |
| CN214629121U (en) * | 2020-10-26 | 2021-11-09 | 新疆维吾尔自治区水产科学研究所 | Anti-sticking fresh water incubator for fish incubation |
| CN112314484A (en) * | 2020-10-30 | 2021-02-05 | 武汉新河湾农业科技有限公司 | Shrimp egg in-vitro hatching device and using method thereof |
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