CN115226661B - Efficient and simple hatching method for viscous roes - Google Patents
Efficient and simple hatching method for viscous roes Download PDFInfo
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- CN115226661B CN115226661B CN202210987836.XA CN202210987836A CN115226661B CN 115226661 B CN115226661 B CN 115226661B CN 202210987836 A CN202210987836 A CN 202210987836A CN 115226661 B CN115226661 B CN 115226661B
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- 230000012447 hatching Effects 0.000 title claims abstract description 203
- 238000000034 method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 235000013601 eggs Nutrition 0.000 claims abstract description 61
- 241000251468 Actinopterygii Species 0.000 claims abstract description 46
- 238000005507 spraying Methods 0.000 claims abstract description 32
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 239000013535 sea water Substances 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- AYIRNRDRBQJXIF-NXEZZACHSA-N (-)-Florfenicol Chemical compound CS(=O)(=O)C1=CC=C([C@@H](O)[C@@H](CF)NC(=O)C(Cl)Cl)C=C1 AYIRNRDRBQJXIF-NXEZZACHSA-N 0.000 claims description 6
- 229960003760 florfenicol Drugs 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 230000000249 desinfective effect Effects 0.000 claims description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 238000006213 oxygenation reaction Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 claims description 2
- 238000009395 breeding Methods 0.000 abstract description 11
- 230000001488 breeding effect Effects 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 15
- 238000011534 incubation Methods 0.000 description 10
- 230000001418 larval effect Effects 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 230000009027 insemination Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000009400 out breeding Methods 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
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- 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 discloses a high-efficiency simple hatching method for viscous roes. The method comprises the following steps: s1, arranging hatching facilities to obtain a hatching device; s2, establishing proper hatching conditions; s3, cleaning and sterilizing regularly; s4, controlling the density of the hatched fries at 4000-8000 tails/m 3 . The hatching device is used for providing a running water type hatching space for fertilized fish eggs and comprises a hatching pond, at least four groups of hatching net cages which are suspended in the hatching pond, water spraying devices fixedly installed on the corresponding hatching net cages, and an air charging device positioned at the bottom of the corresponding hatching net cages. Wherein, hatching cylinder mould is multilayer structure. The invention obviously improves the scale level of the artificial hatching of the viscous fish eggs, has simple operation, high efficiency and controllability, the hatching rate can reach more than 92 percent, can meet the actual requirement of large-scale artificial breeding of the viscous sea fish eggs, establishes a running water type hatching system and solves the problems of poor water fluidity and limited breeding scale of the existing still water hatching mode.
Description
Technical Field
The invention relates to the technical field of artificial propagation of marine fishes, in particular to a high-efficiency simple hatching method for stickness fish eggs.
Background
The common stickness egg-producing sea fish in China mainly comprises hexagram-shaped fish, pine Jiang Lu, banus and the like, has higher economic value and is very popular with consumers. The roe surface film shows extremely high viscosity after meeting seawater, and closely adheres roe together to form a block shape. Under artificial breeding conditions, the internal oxygen exchange capacity of fertilized ovum is poor, bacteria, fungi and the like are easy to breed, and the hatching period is longer, so that the hatching success rate is seriously reduced.
In order to solve the problem of difficult artificial insemination and hatching of viscous roes, the applicant applies for the invention of a patent of a high-viscosity roe artificial insemination and hatching method and a method for improving the hatching rate of fertilized roes of six-line fish, and the main characteristics of the related technologies are as follows: the artificial method is adopted to reshape the roe into a single-layer roe slice and then fertilize the roe, so that the roe is prevented from being changed into a block mass, the roe can be fully contacted with sperms when fertilized, and the fertilization rate of the roe is improved; the membrane of the oosperm is stimulated and softened by adopting light bath and water flow spraying, so that the hatching rate of the oosperm is improved.
However, in the prior art, small facilities such as a hatching barrel or a hatching groove are adopted for hatching, a still water hatching mode is mainly adopted, the scale is small, the fluidity of water is poor, and the actual requirements of large-scale artificial breeding of viscous fish eggs cannot be met.
Disclosure of Invention
Based on the problems that the current hatching mode is small in scale, poor in water body fluidity and incapable of meeting the actual requirements of large-scale artificial breeding of the viscous roes, the high-efficiency simple hatching method for the viscous roes is necessary.
An efficient and simple hatching method for viscous roes comprises the following steps:
s1, arranging hatching facilities to obtain a hatching device;
the hatching device is used for providing a running water type hatching space of fertilized fish eggs and comprises a hatching pond, at least four groups of hatching net cages which are suspended in the hatching pond through a fixed bracket, water spraying devices fixedly arranged on the corresponding hatching net cages, and an air charging device positioned at the bottom position of the corresponding hatching net cages; wherein the hatching net cage is of a multi-layer structure;
s2, establishing proper hatching conditions;
s3, cleaning and sterilizing regularly;
s4, controlling the density of the hatched fries at 4000-8000 tails/m 3 。
In one embodiment, the air outlet of the air charging device is arranged in the bottommost space corresponding to the hatching net cage, and air or pure oxygen is charged into the hatching net cage for oxygenation.
Further, an air stone is fixedly arranged at the air outlet of the air charging device; or, the nanometer air pipe is fixedly arranged at the air outlet of the air charging device.
In one embodiment, each group of hatching nettings is formed by combining a netting and at least four groups of porous partition plates; the water spraying device comprises a vertical pipe and a water spraying port fixedly penetrating through the vertical pipe.
Further, at least four groups of porous partition plates are arranged in parallel in the vertical direction and are used for bearing fertilized egg slices; the netting is provided with an opening which is used for providing a taking and placing channel of fertilized egg slices; the water outlet ends of the water spray ports are positioned between two adjacent groups of porous partition plates and are used for horizontally spraying water flow.
In one embodiment, a water outlet is formed at the bottom of the hatching pond in a penetrating way; the fixed support is of a cross structure, and a slot matched with the fixed support is formed in the top of the hatching pond.
Further, the fixed bracket is connected with hatching Chi Kage through a slot; at least four groups of hatching net cages are uniformly hung on the fixed support; the hatching apparatus further comprises a flow pump located in the hatching pond for producing a flow of water in a clockwise or counter-clockwise direction.
In one embodiment, the method for arranging hatching facilities to obtain hatching devices comprises the following specific operations:
s11, respectively assembling a water spraying device and an air charging device on the hatching net cage;
s12, taking fertilized fish egg slices and placing the fertilized fish egg slices in a hatching net cage;
s13, hanging the hatching net cage on a fixed bracket;
s14, mounting the fixed support in the hatching pond;
s15, bolting silk is covered at the water outlet of the hatching pond.
In one embodiment, the suitable hatching conditions are: the water outlet speed of the water spraying device is 0.1-0.3 m/s, the hatching water temperature is 10-13 ℃, and the pH of the water body is 7-8.
In one embodiment, the method for periodic cleaning and disinfection specifically comprises the following steps:
s31, taking out fertilized fish egg slices every 3-5 days, and soaking in the florfenicol solution;
s32, cleaning the soaked fertilized fish egg slices, and removing dead eggs and bad eggs;
s33, sterilizing and disinfecting the hatching net cage and the hatching pond;
s34, injecting fresh seawater into the sterilized hatching pond, and placing the treated fertilized fish egg slices into a hatching net cage for continuous hatching.
Compared with the prior art, the invention has the beneficial effects that: the invention remarkably improves the scale level of the artificial hatching of the viscous fish eggs, has simple operation, high efficiency and controllability, ensures that the hatching rate of fertilized eggs can reach more than 92 percent, can meet the actual requirement of large-scale artificial breeding of the viscous sea fish eggs, and solves the problems of poor water fluidity and limited breeding scale of the existing still water hatching mode compared with the existing hatching mode.
Drawings
Fig. 1 is a schematic structural view of an incubation device according to embodiment 1 of the present invention.
Fig. 2 shows a partial enlarged view of fig. 1.
Fig. 3 shows an exploded view of fig. 2.
Description of the main reference signs
1. A hatching pond; 2. a fixed bracket; 3. incubating a net cage; 4. a water spraying device; 5. an inflator; 6. a water outlet; 7. a netting; 8. a porous separator; 9. a water jet; 10. a gas stone; 11. and (5) a flow pump.
The foregoing general description of the invention will be described in further detail with reference to the drawings and detailed description.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example 1
The embodiment provides a high-efficiency simple hatching method for viscous roes, which comprises the following steps:
s1, arranging hatching facilities to obtain a hatching device.
Referring to fig. 1-3, the hatching apparatus is used for providing a running water hatching space for fertilized fish eggs, and comprises a hatching pond 1, four groups of hatching net cages 3 suspended in the hatching pond 1 through a fixed bracket 2, water spraying devices 4 fixedly installed on the corresponding hatching net cages 3, an air charging device 5 positioned at the bottom position of the corresponding hatching net cages 3, and a flow making pump 11 positioned in the hatching pond 1.
The shape of the hatching pond 1 is round or octagonal, and the area is 2-25 m 2 The bottom of the hatching pond 1 is provided with a water outlet 6 in a penetrating way, which is used for keeping the water surface in the hatching pond 1 stable, leading the seawater to completely permeate the hatching net cage 3, and providing a water changing channel to meet the hatching requirement of periodical water changing, and the water changing rate during hatching is 200% -400%/day. The flow pump 11 is used to produce a flow of water in a clockwise or counter-clockwise direction.
The fixed support 2 is of a cross structure, a slot matched with the fixed support 2 is formed in the top of the hatching pond 1, and the fixed support 2 is connected with the hatching pond 1 in a clamping way through the slot. In the embodiment, the four groups of hatching net cages 3 are taken as an example for illustration, in actual hatching use, a proper number and layer number of hatching net cages 3 can be arranged according to the volume of hatching water bodies, for example, 0.3-2.0 hatching net cages 3 can be arranged per cubic meter of water body to carry out breeding of fish eggs.
The hatching net cage 3 is of a multi-layer structure and is cylindrical or square. Each group of hatching net cages 3 is formed by combining a net 7 and at least four groups of porous clapboards 8, and the at least four groups of porous clapboards 8 are arranged in parallel in the vertical direction and are used for bearing fertilized egg slices. The netting 7 is provided with an opening for providing a passage for taking out and placing fertilized egg pieces, and in this embodiment, in order to adapt to the use requirement of taking out and placing fertilized egg pieces along the opening provided on the netting 7, the netting 7 is made of a material with elasticity such as nylon.
The water spraying device 4 comprises a vertical pipe and a water spraying port 9 fixedly penetrating through the vertical pipe. The water outlet ends of the water jets 9 are positioned between two adjacent groups of porous partition plates 8, in this embodiment, each layer of the hatching net 3 corresponds to one water jet 9, and when hatching is performed, each water jet 9 horizontally sprays water flow towards the hatching net 3. It should be noted that, the water outlet directions of the water spraying devices 4 in the hatching pond 1 are all arranged clockwise or counterclockwise so as to form annular water flow.
The air outlet of the air charging device 5 is arranged in the bottommost space corresponding to the hatching net cage 3, and air or pure oxygen is charged into the hatching net cage 3 for oxygenation. In the embodiment, the air pump and the air hose are adopted by the air charging device 5, and air is pumped by the air pump and is directionally charged into the hatching net cage 3 along the air hose, so that the concentration of dissolved oxygen in the hatching pond 1 is more than or equal to 6mg/L. The air stone 10 or the nano air pipe is fixedly arranged at the air outlet of the air charging device 5, in the embodiment, the air stone 10 is connected to the air pump by the air hose by utilizing the characteristic that the air stone 10 has more holes, so that the air compressed by the air pump is converted into smaller bubbles.
The method for arranging hatching facilities to obtain hatching devices comprises the following specific operations:
s11, respectively assembling the water spraying device 4 and the inflating device 5 on the hatching net cage 3.
S12, taking fertilized fish egg slices and placing the fertilized fish egg slices in a hatching net cage 3.
The method comprises the steps of manually selecting the roe, shaping to obtain a single-layer roe slice, and then conducting fertilization treatment to obtain a fertilized roe slice, wherein the fertilized roe slice is based on the treatment to prevent the roe from becoming a block, so that the fertilized roe can be fully contacted with sperms, and the purpose of improving the fertilized rate of the roe is achieved. The number of fertilized fish egg slices placed in each layer of hatching space is 1-3.
S13, hanging the hatching net cage 3 on the fixed bracket 2.
S14, the fixing rack 2 is mounted in the hatching pond 1.
S15, covering a bolting silk with the aperture of 0.5-1.2 mm at the water outlet 6 of the hatching pond 1 so as to prevent the hatched fries from escaping.
S2, establishing proper hatching conditions.
Suitable hatching conditions are: the water outlet speed of the water spraying device 4 is 0.1-0.3 m/s, the hatching water temperature is 10-13 ℃, and the pH of the water body is 7-8.
S3, cleaning and disinfecting regularly.
The method for cleaning and disinfecting regularly comprises the following specific operations:
s31, taking out fertilized fish egg slices every 3-5 days, and soaking in the florfenicol solution.
The concentration of the florfenicol solution is 100-300 mg/L, and the soaking time is 3-5 min.
S32, cleaning the soaked fertilized fish egg slices, and removing dead eggs and bad eggs.
Cleaning the surface of the fertilized fish egg slices by using a soft brush and clean seawater, and removing dead eggs and bad eggs.
S33, sterilizing and disinfecting the hatching net cage 3 and the hatching pond 1 by using hydrogen peroxide.
S34, injecting fresh seawater into the sterilized incubation pool 1, and placing the fertilized fish egg slices after treatment into an incubation net cage 3 for continuous incubation.
The hatching net cage 3 is arranged in the hatching pond 1 according to the original arrangement mode, and hatching is continued under the original hatching condition.
S4, controlling the density of the hatched fries at 4000-8000 tails/m 3 。
After the larval fish is hatched successively, the hatching net cage 3 is transferred to other hatching ponds 1 in time according to the density of the larval fish to continue hatching, so that the density of the hatched larval fish is controlled at 4000-8000 larval fish/m 3 Preferably, dead eggs, bad eggs and empty shells after hatching of the fries are cleaned every day so as to prevent bacteria from breeding.
The hatching method of the embodiment obviously improves the scale level of the artificial hatching of the viscous spawns, has simple operation, high efficiency and controllability, ensures that the hatching rate of the fertilized spawns can reach more than 92 percent, and can meet the actual requirement of the large-scale artificial breeding of the viscous sea water spawns. Compared with the existing hatching mode, the embodiment establishes a running water hatching system, and solves the problems of poor water fluidity and limited breeding scale of the existing still water hatching mode.
The following hatching tests for the six-line fish were carried out using the hatching apparatus and the hatching method as provided in example 1, and the specific tests are as follows:
test example 1
Arranging hatching facilities: the hatching pond 1 is a circular glass fiber reinforced plastic water tank with the diameter of 2.0m and the height of 1.0m, a special stainless steel fixing support 2 is erected above the hatching pond 1, and 4 cylindrical hatching net cages 3 are hung below the fixing support 2. Each hatching net cage 3 has a diameter of 20cm and a height of 60cm, the hatching net cage 3 is divided into 5 layers, the lowest 1 layer is provided with an air charging device 5, the air stone 10 is utilized for oxygenation, and the rest 4 layers are respectively provided with 1 piece of fertilized egg of six-line fish of 15cm multiplied by 12 cm. The water spraying device 4 is fixed on one side of the hatching net cage 3, each layer corresponds to 1 water spraying port 9, the water flow speed of the water spraying ports 9 is 0.2m/s, and the spraying directions of the water spraying devices 4 in the same hatching pool 1 are all arranged clockwise or anticlockwise so as to form annular water flow.
Hatching management: incubating in the filtered and sterilized clean natural seawater, wherein the incubating water temperature is 12 ℃, the pH value is 8, and the concentration of dissolved oxygen is more than or equal to 6mg/L. Cleaning and sterilizing fertilized egg slices and hatching facilities every 3 days during hatching, wherein the fertilized egg slices are treated by the following steps: soaking in 200mg/L florfenicol solution for 4min, cleaning the surfaces of the egg slices by using a soft brush and clean seawater, and removing dead egg and broken egg; before the larval fish is hatched, a layer of bolting silk with the aperture of 0.6mm is covered on the water outlet 6 to prevent the hatched larval fish from escaping.
In the test example, the incubation period is 24 days, and the water body of the incubation facility is 2.5m 3 The total hatching rate of 15 ten thousand fish larvae is 96.5%.
Test example 2
Arranging hatching facilities: the hatching pond 1 is an octagonal cement pond with the diameter of 5.0m and the depth of 1.2m, a special stainless steel fixing support 2 is erected above the hatching pond 1, and 12 square hatching net cages 3 are hung below the fixing support 2. Each hatching net cage 3 is long, wide and high=40 cm, 30 cm and 80cm, the hatching net cage 3 is divided into 6 layers, the lowest layer 1 is provided with an air charging device 5, pure oxygen is increased by utilizing a nano air pipe, and the rest 5 layers are respectively provided with 3 fertilized egg slices of the six-line fish of 15cm and 12 cm. A water spraying device 4 is fixed on one side of the hatching net cage 3, each layer corresponds to 1 water spraying port 9, and the water flow speed of the water spraying ports 9 is 0.2m/s; the jet flow directions of the water spraying devices 4 in the same hatching pond 1 are all arranged clockwise or anticlockwise, 2 flow-making pumps 11 with the power of 12W are arranged in the hatching pond 1, the water outlet directions of the flow-making pumps 11 are consistent with those of the water spraying devices 4, and the water outlet directions of the flow-making pumps and the water spraying devices are combined to enable the water bodies in the hatching pond 1 to keep rotating.
Hatching management: incubating in the filtered and sterilized clean natural seawater, wherein the incubating water temperature is 12 ℃, the pH value is 8, and the concentration of dissolved oxygen is more than or equal to 6mg/L. Cleaning and sterilizing fertilized egg slices and hatching facilities every 3 days during hatching, wherein the fertilized egg slices are treated by the following steps: soaking in 200mg/L florfenicol solution for 4min, cleaning the surfaces of the egg slices by using a soft brush and clean seawater, and removing dead egg and broken egg; before the larval fish is hatched, a layer of bolting silk with the aperture of 0.6mm is covered on the water outlet 6 to prevent the hatched larval fish from escaping.
In the test example, the incubation period is 23 days, the incubation water body is 20m3, the total incubation of 120 ten thousand larvae is achieved, and the incubation rate is 95%.
In conclusion, by combining the test example 1 and the test example 2, the high-efficiency simple hatching method for the viscous spawns provided by the invention has the advantages that the scale level of the artificial hatching of the viscous spawns is obviously improved, the hatching rate of fertilized spawns can reach more than 92%, and the practical requirement of the large-scale artificial breeding of the viscous sea water spawns can be met.
The naming of the components involved is based on the functions described in the specification as naming standards, and is not limited by the specific terms used in the present invention, and other terms may be selected by those skilled in the art to describe the names of the components of the present invention.
Claims (6)
1. The efficient and simple hatching method for the viscous roes is characterized by comprising the following steps of:
s1, arranging hatching facilities to obtain a hatching device;
the hatching device is used for providing a running water type hatching space of fertilized fish eggs and comprises a hatching pond, at least four groups of hatching net cages which are suspended in the hatching pond through a fixed bracket, water spraying devices fixedly arranged on the corresponding hatching net cages, and an air charging device positioned at the bottom position of the corresponding hatching net cages; wherein the hatching net cage is of a multi-layer structure;
each group of hatching net cages is formed by combining a net and at least four groups of porous partition plates; the water spraying device comprises a vertical pipe and a water spraying port fixedly penetrating through the vertical pipe; at least four groups of porous partition plates are arranged in parallel in the vertical direction and are used for bearing fertilized egg slices; the netting is provided with an opening which is used for providing a taking and placing channel of fertilized egg slices; the water outlet ends of the water spray ports are positioned between two adjacent groups of porous partition plates and are used for horizontally spraying water flow;
a water outlet is formed at the bottom of the hatching pond in a penetrating way; the fixed support is of a cross structure, and a slot matched with the fixed support is formed in the top of the hatching pond; the fixed support is connected with the hatching Chi Kage through a slot; at least four groups of hatching net cages are uniformly hung on the fixed support; the hatching apparatus further comprises a flow-making pump located in the hatching pond for making a water flow in a clockwise or counter-clockwise direction;
s2, establishing proper hatching conditions;
s3, cleaning and sterilizing regularly;
s4, controlling the density of the hatched fries at 4000-8000 tails/m 3 。
2. The method for efficient and simple hatching of viscous fish eggs according to claim 1, wherein the air outlet of the air charging device is arranged in the bottommost space of the corresponding hatching net cage, and air or pure oxygen is charged into the hatching net cage for oxygenation.
3. The method for efficient and simple hatching of viscous roes according to claim 2, wherein an air stone is fixedly arranged at the air outlet of the air charging device;
or, the nanometer air pipe is fixedly arranged at the air outlet of the air charging device.
4. The method for efficiently and simply hatching viscous roes according to claim 1, wherein the method for arranging hatching facilities to obtain hatching devices is specifically operated as follows:
s11, respectively assembling a water spraying device and an air charging device on the hatching net cage;
s12, taking fertilized fish egg slices and placing the fertilized fish egg slices in a hatching net cage;
s13, hanging the hatching net cage on a fixed bracket;
s14, mounting the fixed support in the hatching pond;
s15, bolting silk is covered at the water outlet of the hatching pond.
5. A method for efficient and simple hatching of viscous fish eggs according to claim 1, wherein the suitable hatching conditions are: the water outlet speed of the water spraying device is 0.1-0.3 m/s, the hatching water temperature is 10-13 ℃, and the pH of the water body is 7-8.
6. The method for efficient and simple hatching of viscous roes according to claim 1, characterized in that said method for periodic cleaning and disinfection comprises the following specific operations:
s31, taking out fertilized fish egg slices every 3-5 days, and soaking in the florfenicol solution;
s32, cleaning the soaked fertilized fish egg slices, and removing dead eggs and bad eggs;
s33, sterilizing and disinfecting the hatching net cage and the hatching pond;
s34, injecting fresh seawater into the sterilized hatching pond, and placing the treated fertilized fish egg slices into a hatching net cage for continuous hatching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210987836.XA CN115226661B (en) | 2022-08-17 | 2022-08-17 | Efficient and simple hatching method for viscous roes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210987836.XA CN115226661B (en) | 2022-08-17 | 2022-08-17 | Efficient and simple hatching method for viscous roes |
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| CN115226661A CN115226661A (en) | 2022-10-25 |
| CN115226661B true CN115226661B (en) | 2024-02-02 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012075359A (en) * | 2010-09-30 | 2012-04-19 | Aomori Prefectural Industrial Technology Research Center | Hatching device |
| CN205648718U (en) * | 2016-04-28 | 2016-10-19 | 河南省水产科学研究院 | Fry multilayer hatching apparatus |
| CN208317915U (en) * | 2018-03-19 | 2019-01-04 | 水利部中国科学院水工程生态研究所 | A kind of dedicated incubator of C. guichenoti Drifting egg |
| CN212232681U (en) * | 2020-04-30 | 2020-12-29 | 云南靖源鱼类养殖有限责任公司 | Sturgeon embryonated egg hatching device |
| CN213427789U (en) * | 2020-07-31 | 2021-06-15 | 天津市水产研究所 | A hatching apparatus for sight fish viscidity ovum |
| CN113229185A (en) * | 2021-05-18 | 2021-08-10 | 上海渔兮自动化科技有限公司 | Constant-pressure shunting loop type hatching device |
| CN214482820U (en) * | 2021-02-04 | 2021-10-26 | 天津现代晨辉科技集团有限公司 | Air spawn hanging and hatching device for fancy carps |
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2022
- 2022-08-17 CN CN202210987836.XA patent/CN115226661B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012075359A (en) * | 2010-09-30 | 2012-04-19 | Aomori Prefectural Industrial Technology Research Center | Hatching device |
| CN205648718U (en) * | 2016-04-28 | 2016-10-19 | 河南省水产科学研究院 | Fry multilayer hatching apparatus |
| CN208317915U (en) * | 2018-03-19 | 2019-01-04 | 水利部中国科学院水工程生态研究所 | A kind of dedicated incubator of C. guichenoti Drifting egg |
| CN212232681U (en) * | 2020-04-30 | 2020-12-29 | 云南靖源鱼类养殖有限责任公司 | Sturgeon embryonated egg hatching device |
| CN213427789U (en) * | 2020-07-31 | 2021-06-15 | 天津市水产研究所 | A hatching apparatus for sight fish viscidity ovum |
| CN214482820U (en) * | 2021-02-04 | 2021-10-26 | 天津现代晨辉科技集团有限公司 | Air spawn hanging and hatching device for fancy carps |
| CN113229185A (en) * | 2021-05-18 | 2021-08-10 | 上海渔兮自动化科技有限公司 | Constant-pressure shunting loop type hatching device |
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| CN115226661A (en) | 2022-10-25 |
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