CN114467811B - Method for reducing death rate of mandarin fish fries - Google Patents
Method for reducing death rate of mandarin fish fries Download PDFInfo
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- CN114467811B CN114467811B CN202210130734.6A CN202210130734A CN114467811B CN 114467811 B CN114467811 B CN 114467811B CN 202210130734 A CN202210130734 A CN 202210130734A CN 114467811 B CN114467811 B CN 114467811B
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- 230000000694 effects Effects 0.000 claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 67
- 239000001301 oxygen Substances 0.000 claims description 67
- 229910052760 oxygen Inorganic materials 0.000 claims description 67
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- 230000004083 survival effect Effects 0.000 abstract description 7
- 238000012258 culturing Methods 0.000 abstract description 3
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- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013332 fish product Nutrition 0.000 description 1
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- 235000013305 food Nutrition 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
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- 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
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- 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
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
-
- 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
- A01K61/80—Feeding devices
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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 belongs to the field of aquatic products, and particularly relates to a method for reducing mortality of mandarin fish fries. The invention provides a transition space before the mandarin fish fries enter the pond, the mandarin fish fries in the space between the pontoon box and the inner box relatively slowly complete the adaptation to the water temperature and the water quality of the pond, the stress reaction of the mandarin fish fries after the mandarin fish fries directly enter the pond is avoided, meanwhile, the space can play a role of temporarily culturing the mandarin fish fries, the mandarin fish fries are prevented from being eaten by the large mandarin fish fries due to activity or head and the like after the mandarin fish fries directly enter the pond, and the survival rate of the mandarin fish fries is improved.
Description
Technical Field
The invention belongs to the field of aquatic products, and particularly relates to a method for reducing mortality of mandarin fish fries.
Background
The mandarin fish is fresh and tender in meat quality and rich in nutrition, the mandarin fish is historically a medium-high-grade freshwater fish product which people prefer to eat, in order to improve the survival rate of adult mandarin fish in a pond or a large water surface mandarin fish, most farmers temporarily culture mandarin fish fries into large-size mandarin fish seeds in a mandarin fish culturing factory, then transfer the mandarin fish fries through an oxygen bag, and throw the mandarin fish fries into the pond after the mandarin fish fries are transported through the oxygen bag, during throwing, the oxygen bag is directly torn open and thrown into the pond, so that the mandarin fish fries directly move into the pond, because the water in the oxygen bag has a temperature difference with the water in the pond, and the water quality of the oxygen bag is different from that of the water in the pond, the directly thrown mandarin fish fries often cause emergency reaction of the mandarin fish fries which are 'noble' so that the mandarin fish fries activity is reduced, the survival rate of the mandarin fish fries is finally influenced, meanwhile, the mandarin fish fries which are easy to eat little each other mandarin fish and are mutually cannibble, so that the mandarin fish fries are put into the mandarin fish early, the mandarin fish space which is relatively small is often relatively easy to ensure the survival rate of the mandarin fish in the mandarin fish residual activity of the mandarin fish in the mandarin fish culture space, and the mandarin fish space is relatively large mandarin fish, so that the mandarin fish residual mandarin fish can be primarily ensured, and the mandarin fish residual fish space, and the mandarin fish residual fish is relatively poor in the mandarin fish culture space, and the mandarin fish residual mandarin fish culture space is primarily in the mandarin fish culture space, and the mandarin fish culture space is relatively early culture space, and the mandarin fish culture space is relatively early culture space, and the residual mandarin fish culture space is relatively poor in the mandarin fish culture space is necessary to primarily suitable for the mandarin fish culture space.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for reducing the death rate of mandarin fish fries.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for reducing mortality of mandarin fish fries comprises the following steps: inserting the limiting holes into the limiting rods in an aligning mode, so that the inner boxes are uniformly distributed in the buoy box;
placing the floating barrel box in the pond, wherein the floating barrel box is in a suspension state;
water in the pond enters the float bowl box through the exchange cylinder, and the water level in the float bowl box is slightly higher than the upper end surface of the exchange cylinder;
placing an oxygen bag on the inner box cylinder, and pressing the oxygen bag downwards to enable the puncture rod to puncture the oxygen bag and the oxygen bag to contact the inner part of the pocket disc; water and mandarin fish fries in the oxygen bag slowly enter the inner box barrel through the passageway; meanwhile, the floating plug moves downwards under the action of the downward gravity of the oxygen bag until a gap is formed between the floating plug and the floating plate;
the water in the buoy tank enters the inner tank through the gap, so that the water in the inner tank and the water in the buoy tank are uniformly mixed, finally the water temperature of the water in the buoy tank is consistent with the water temperature in the inner tank, and meanwhile, the live mandarin fish fries in the inner tank enter the buoy tank through the gap;
bait is thrown along the edge of the buoy box to feed the mandarin fish fries in the buoy box, along with the growth of the mandarin fish fries in the buoy box, the mandarin fish fries with high activity swim to the middle part of the buoy box and enter the pond through the contracted barrel of the exchange barrel, and the mandarin fish fries with low activity continue to be left in the buoy box to feed the bait.
The better gas in the gas supply pipe is discharged through the gas outlet hole, the gas is released around the gap of the inner box cylinder, and sufficient oxygen attracts the mandarin fish fries in the inner box cylinder to enter the buoy box through the gap.
Preferably, after the active mandarin fish fries in the inner box barrel all enter the floating barrel box, the oxygen bag is taken out of the inner box barrel, the floating plug moves upwards under the action of the spring, and a gap between the floating plug and the floating plate disappears.
Preferably, the bracket barrel is sleeved outside the inner box barrel and supports the periphery of the oxygen bag.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a transition space before the mandarin fish fries enter the pond, the mandarin fish fries in the space between the pontoon box and the inner box relatively slowly complete the adaptation to the water temperature and the water quality of the pond, the stress reaction of the mandarin fish fries after the mandarin fish fries directly enter the pond is avoided, meanwhile, the space can play a role of temporarily culturing the mandarin fish fries, the mandarin fish fries are prevented from being eaten by the large mandarin fish fries due to activity or head and the like after the mandarin fish fries directly enter the pond, and the survival rate of the mandarin fish fries is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a three-dimensional structure diagram of the present invention.
Fig. 4 is a schematic top view of the present invention.
FIG. 5 isbase:Sub>A schematic sectional view A-A of FIG. 4.
FIG. 6 is a schematic top view of the inner box of the present invention.
FIG. 7 is a schematic sectional view of B-B in FIG. 6.
Fig. 8 is a schematic perspective view of the inner box of the present invention.
Fig. 9 is an enlarged schematic view of a portion a in fig. 8.
Detailed Description
The method for reducing the mortality rate of mandarin fish fries as shown in figures 1-9 comprises the following steps: the limiting hole 210 is aligned with the limiting rod 120 and inserted, so that the inner box 2 is uniformly distributed in the buoy box 1;
placing the buoy box 1 in a pond, wherein the buoy box 1 is in a suspension state;
water in the pond enters the buoy tank 1 through the exchange cylinder 13, and the water level in the buoy tank 1 is slightly higher than the upper end surface of the exchange cylinder 13;
placing an oxygen bag on the inner tank 22, pressing the oxygen bag downwards so that the piercing rod 232 pierces the oxygen bag and the oxygen bag contacts the inside of the pocket plate 233; the water and mandarin fish fry in the oxygen bag slowly enter the inner box 22 through the passageway 2322; meanwhile, the floating plug 23 moves downwards under the action of the downward gravity of the oxygen bag until a gap is formed between the floating plug 23 and the floating plate 21;
the water in the buoy tank 1 enters the inner tank 22 through the gap, so that the water in the inner tank 22 and the water in the buoy tank 1 are uniformly mixed, and finally the water temperature of the water in the buoy tank 1 is consistent with the water temperature in the inner tank 22, thereby avoiding the stress reaction of the fish fries in the inner tank 22 caused by the violent change of the water temperature; meanwhile, the mandarin fish fries with vitality in the inner box cylinder 22 enter the pontoon box 1 through the gap;
bait is thrown along the edge of the buoy box 1 to feed the mandarin fish fries in the buoy box 1, along with the growth of the mandarin fish fries in the buoy box 1, the high-activity mandarin fish fries swim to the middle part of the buoy box 1 and enter the pond through the contracting cylinder 130 of the exchange cylinder 13, and the low-activity mandarin fish fries continue to stay in the buoy box 1 to feed the bait;
preferably, the gas in the gas supply pipe 24 is discharged through the gas outlet holes 241, the gas is released around the gap of the inner box cylinder 22, and sufficient oxygen induces the mandarin fish fries in the inner box cylinder 22 to enter the pontoon casing 1 through the gap;
preferably, after active mandarin fish fries in the inner tank 22 all enter the pontoon casing 1, the oxygen bag is taken out of the inner tank 22, at the moment, the floating plug 23 moves upwards under the action of the spring 234, and the gap between the floating plug 23 and the floating plate 21 disappears;
preferably, the bracket tube 25 is sleeved outside the inner box tube 22, and the bracket tube 25 supports the periphery of the oxygen bag.
The method is characterized in that a buoy tank 1 floats in a pond, water in the pond enters a buoy tank 1, an inner tank 2 floats in the buoy tank 1, the buoy tank 1 is communicated with an inner tank 2, the inner tank 2 is communicated with the pond, an oxygen bag is placed in the inner tank 2, then, fish fries in the oxygen bag enter the buoy tank 1 through the inner tank 2, and are temporarily raised in the buoy tank 1, so that the mandarin fish fries in the oxygen bag adapt to the external environment to avoid the mandarin fish fries in the oxygen bag from being directly thrown into the pond to cause stress reaction of the mandarin fish fries, on the other hand, the inner tank 2 can retain the mandarin fish fries and residual baits in the oxygen bag in the inner tank 2, the mandarin fish fries entering the buoy tank 1 through the inner tank 2 can exist in a relatively closed environment, new baits can be regularly thrown into the buoy tank 1 for eating of the mandarin fish fries, the activity of the mandarin fish fries with high activity is improved, the mandarin fish fries enter the pond from the buoy tank 1 step by step, survive in the inner tank 1, and the survival rate is greatly improved.
The buoy box 1 comprises a side cylinder wall 11, a bottom wall 12 and an exchange cylinder 13, wherein the bottom wall 12 is of a disc-shaped structure and is made of PVC plastic materials, the bottom of the side cylinder wall 11 is fixed on the bottom wall 12, the exchange cylinder 13 is arranged on the bottom wall 12, the exchange cylinder 13 is of a cylindrical structure, the upper part and the lower part of the exchange cylinder are both in an opening shape, the diameter of the opening at the upper part of the exchange cylinder 13 is smaller than that of the opening at the lower part of the exchange cylinder, the height of the upper end face of the exchange cylinder 13 is smaller than that of the side cylinder wall 11, and water in the buoy box 1 sinks over the upper end face of the exchange cylinder 13; the pond water enters the pontoon box 1 through the exchange cylinder 13, the water level in the pontoon box 1 is kept in a relatively stable state under the action of the gravity of the pontoon box 1, the gravity of the inner box 2 and the oxygen bag and the buoyancy of the pontoon box 1, the narrow-top and wide-bottom structure of the exchange cylinder 13 is convenient for the pond water to enter the pontoon box 1, the contracting cylinder 130 is arranged in the exchange cylinder 13, the contracting cylinder 130 is recessed into the exchange cylinder 13, the contracting cylinder 130 is of a conical cylinder structure, and the diameter of the upper part of the contracting cylinder 130 is larger than the diameter of the lower part of the contracting cylinder 130. On one hand, water in the pond can enter the buoy tank 1 through the reducing cylinder 130, meanwhile, the situation that the mandarin fish or other organisms or large-volume impurities in the pond enter the buoy tank 1 is avoided, and the mandarin fish fries in the buoy tank 1 can enter the pond through the reducing cylinder 130.
The water level in the buoy box 1 is equal to the water level in the pond, water in the buoy box 1 mainly enters the buoy box 1 through the exchange cylinder 13, an oxygen bag is placed in the inner box 2, mandarin fish fries in the oxygen bag slowly enter the buoy box 1 through the inner box 2, the buoy box 1 provides a stable living environment with the mandarin fish fries, food required for growth of the mandarin fish fries is thrown into the buoy box 1, the mandarin fish fries grow gradually in the buoy box 1, the mandarin fish fries with high activity continuously grow in the buoy box 1 and depend on the relatively stable living environment in the buoy box 1 until the activity and the living capacity increase enough to swim from the buoy box 1 to the pond. In the whole process, the water quality and the water temperature in the buoy box 1 are basically consistent with those in the pond 1, so that the mandarin fish fries in the buoy box 1 can adapt to the water environment in the pond in advance, the mandarin fish fries can enter the pond to grow in the later period, and the survival rate of the mandarin fish fries is improved; the oxygen bag is firstly placed in the inner box 2, the water in the oxygen bag and the mandarin fish fries and the water in the oxygen bag firstly enter the inner box 2, and meanwhile, a part of the water in the buoy box 1 enters the inner box 2, so that the water in the inner box 2 is the mixture of the water in the pond and the water in the oxygen bag, a transitional environment can be provided for the mandarin fish fries temporarily entering the inner box 2, the mandarin fish fries are prevented from directly contacting the pond to generate emergency reaction, and then the mandarin fish fries in the inner box 2 gradually enter the buoy box 1 after vitality is recovered.
The inner box 2 floats in the region between the inner side of the side tube wall 11 and the outer side of the exchange tube 13; the preferred number of inner boxes 2 is 5 and evenly distributed within the pontoon boxes 1. The inner tank 2 floats in the area against the edge of the pontoon tank 1 under the combined action of the exchange cylinder 13 and the side cylinder walls 11.
Referring to fig. 6-9, the inner box 2 includes a floating plate 21, an inner box cylinder 22, a floating plug 23 and an air supply pipe 24, the floating plate 21 is in a vertical column shape, the floating plate 21 has buoyancy, a through hole 211 is formed through the center of the floating plate 21, the through hole 211 is in a circular hole shape, the inner box cylinder 22 is fixed on the floating plate 21, the inner box cylinder 22 is located at the periphery of the through hole 211, the inner box cylinder 22 is in a cylindrical shape, the center of the inner box cylinder 22 coincides with the center of the through hole 211, the floating plug 23 has buoyancy, the floating plug 23 moves up and down in the area between the inner box cylinder 22 and the through hole 211 under the effect of its own buoyancy, and the air supply pipe 24 is arranged at the bottom of the floating plate 21. Preferably, the inner casing 22 is externally sleeved with the bracket tube 25, the inner diameter of the bracket tube 25 is larger than that of the inner casing 22, the bracket tube 25 is fixed with the support bars 251, the support bars 251 are in a shape of "(" the support bars 251 surround the bracket tube 25 for a circle, the upper end faces of the support bars 251 are positioned at the upper part of the inner casing 22, for the oxygen bag with larger volume, the bracket tube 25 can support the oxygen bag with larger area to avoid the separation of the oxygen bag from the inner casing 22, so that the oxygen bag can be kept in an inverted shape to facilitate the entry of the fish fries in the oxygen bag into the inner casing 22, when the mandarin fish is filled into the inner casing 1, the inner casing 22 is in a suspended state under the action of the floating plate 21, the oxygen bag is positioned at the upper part of the floating plug 23, the floating plug 23 can pierce the oxygen bag and the puncture rod of the floating plug 23 into the oxygen bag, at the moment, the water in the oxygen bag and the oxygen bag can enter the inner casing 22 along the floating plug 23 into the inner casing 22, and the oxygen bag can be finally supplied to the air supply gap 891 to ensure that the residual oxygen in the mandarin fish box 22 and the air bag can enter the air supply tube 22 (when the gap 891 and the residual mandarin fish is finally, so that the mandarin fish can be left in the mandarin fish box because the mandarin fish box 22 and the mandarin fish box when the mandarin fish box 22.
The floating plate 21 is made of polyethylene foam plate, and the floating plate 21 can float on the water surface. Thus, the inner tank 22 can be suspended in water, and the oxygen bag placed in the inner tank 22 can be located above the water surface, facilitating observation and later collection.
The floating plug 23 comprises a piston plate 231, a barbed rod 232 and a pocket disc 233, the piston plate 231 is disc-shaped, the piston plate 231 is made of PVC plastic, the piston plate 231 can float on the water surface, the barbed rod 232 is vertically fixed in the middle of the piston plate 231, the upper end of the barbed rod 232 is in a sharp edge shape, channel grooves 2321 are uniformly formed in the barbed rod 232, and the pocket disc 233 is fixed on the barbed rod 232; the pocket plate 233 serves to support the oxygen bag after the oxygen bag is pierced by the piercing rod 232 to prevent the oxygen bag from continuing to "drop" downward.
The cross section of the channel groove 2321 is n-shaped, the channel grooves 2321 extend from the upper part of the barbed rod 232 to the bottom part of the barbed rod 232, and the number of the channel grooves 2321 is three and is uniformly distributed on the barbed rod 232.
The bottom of the piston plate 231 is fixedly connected with the upper end of the spring 234, the lower end of the spring 234 is fixedly connected with one end of the support 235, the support 235 is L-shaped, and the other end of the support 235 is fixedly connected with the bottom of the floating plate 21. The spring 234 gives the piston plate 231 a certain return force, and when the oxygen bag is retracted, the piston plate 231 is reset under the action of the spring 234 and the inner tank cylinder 22 and the pontoon 1 no longer exchange material.
The air supply pipe 24 is annular, the air supply pipe 24 is of a hollow tubular structure, the inner diameter of the air supply pipe 24 is larger than that of the through hole 211, air holes 241 are uniformly formed in the air supply pipe 24, the air holes 241 face the inner side of the air supply pipe 24, the air supply pipe 24 is communicated with the air pipes 242, and the specific air pipes 242 penetrate through the support 235; the air supply pipe 24 supplies oxygen, and the oxygen generated in the air supply pipe 24 can "induce" the live mandarin fish fry in the inner box cylinder 22 into the pontoon box 1.
Referring to fig. 5, the floating plate 21 is formed with a limiting hole 210, the bottom wall 12 is fixed with a limiting rod 120, the limiting rod 120 passes through the limiting hole 210, and the limiting rod 120 protrudes from the upper end surface of the inner box 22. The floating plate 21 is stably moved up and down under the action of the limiting rod 120 and the limiting hole 210, so that the floating plate 21 is prevented from being displaced in the floating process.
Claims (1)
1. A method for reducing mortality of mandarin fish fries is characterized by comprising the following steps: inserting the limiting holes into the limiting rods in an aligning mode, so that the inner boxes are uniformly distributed in the buoy box;
placing the float tank in the pond, wherein the float tank is in a suspension state;
water in the pond enters the float bowl box through the exchange cylinder, and the water level in the float bowl box is higher than the upper end surface of the exchange cylinder;
placing an oxygen bag on the inner tank cylinder, and pressing the oxygen bag downwards to enable the piercing rod to pierce the oxygen bag and the oxygen bag to contact the inner part of the pocket disc; water and mandarin fish fries in the oxygen bag slowly enter the inner box barrel through the passageway; meanwhile, the floating plug moves downwards under the action of the downward gravity of the oxygen bag until a gap is formed between the floating plug and the floating plate;
the water in the buoy box enters the inner box cylinder through the gap, so that the water in the inner box cylinder and the water in the buoy box are uniformly mixed, finally the water temperature of the water in the buoy box is consistent with the water temperature in the inner box cylinder, and meanwhile, the active mandarin fish fries in the inner box cylinder enter the buoy box through the gap;
bait is thrown along the edge of the buoy box to feed the mandarin fish fries in the buoy box, along with the growth of the mandarin fish fries in the buoy box, the mandarin fish fries with high activity swim to the middle part of the buoy box and enter the pond through the contracted barrel of the exchange barrel, and the mandarin fish fries with poor activity continue to be left in the buoy box to feed the bait;
the gas in the gas supply pipe is discharged through the gas outlet hole, the gas is released around the gap of the inner box cylinder, and sufficient oxygen attracts the mandarin fish fries in the inner box cylinder to enter the pontoon box through the gap;
when active mandarin fish fries in the inner box barrel all enter the floating barrel box, the oxygen bag is taken out of the inner box barrel, the floating plug moves upwards under the action of the spring, and a gap between the floating plug and the floating plate disappears;
sleeving the bracket barrel outside the inner box barrel, and supporting the periphery of the oxygen bag by the bracket barrel;
the floating cylinder box floats in the pond, water in the pond enters the floating cylinder box, the inner box floats in the floating cylinder box, the floating cylinder box is communicated with the inner box, the inner box is communicated with the pond, the oxygen bag is placed in the inner box, and then the fry in the oxygen bag enters the floating cylinder box through the inner box;
the float tank comprises a side cylinder wall, a bottom wall and an exchange cylinder, wherein the bottom wall is of a disc-shaped structure and is made of PVC plastic materials, the bottom of the side cylinder wall is fixed on the bottom wall, the exchange cylinder is arranged on the bottom wall, the exchange cylinder is of a cylindrical structure, the upper part and the lower part of the exchange cylinder are both in an opening shape, the diameter of an opening at the upper part of the exchange cylinder is smaller than that of an opening at the lower part of the exchange cylinder, the height of the upper end face of the exchange cylinder is smaller than that of the side cylinder wall, and water in the float tank sinks across the upper end face of the exchange cylinder; a contracting cylinder is arranged in the exchange cylinder, the contracting cylinder is recessed into the exchange cylinder, the contracting cylinder is of a conical cylinder structure, and the diameter of the upper part of the contracting cylinder is larger than that of the lower part of the contracting cylinder;
the water level in the buoy tank is equal to the water level in the pond, and the water in the buoy tank enters the buoy tank through the exchange cylinder;
the inner box floats in the area between the inner side of the side wall and the outer side of the exchange cylinder; the number of the inner boxes is 5, and the inner boxes are uniformly distributed in the buoy box; the inner box floats in the area close to the edge of the float box under the combined action of the exchange cylinder and the side cylinder wall;
the inner box comprises a floating plate, an inner box cylinder, a floating plug and an air supply pipe, wherein the floating plate is in a column shape, the floating plate has buoyancy, a through hole is formed in the center of the floating plate in a through mode, the through hole is in a circular hole shape, the inner box cylinder is fixed on the floating plate and is positioned at the periphery of the through hole, the inner box cylinder is in a cylindrical shape, the circle center of the inner box cylinder is superposed with the circle center of the through hole, the floating plug has buoyancy and can move up and down in the area between the inner box cylinder and the through hole under the action of the buoyancy of the floating plug, and the air supply pipe is arranged at the bottom of the floating plate; the outer part of the inner box cylinder is sleeved with a bracket cylinder, the inner diameter of the bracket cylinder is larger than that of the inner box cylinder, a support bar is fixed on the bracket cylinder, the support bar is shaped like a Chinese character 'ji', the support bar surrounds the bracket cylinder for a circle, and the upper end surface of the support bar is positioned at the upper part of the inner box cylinder;
the floating plug comprises a piston plate, a thorn rod and a pocket disc, the piston plate is disc-shaped and is made of PVC plastics, the thorn rod is vertically fixed in the middle of the piston plate, the upper end of the thorn rod is in a sharp edge shape, channel grooves are uniformly formed in the thorn rod, and the pocket disc is fixed on the thorn rod;
the cross section of each channel groove is n-shaped, the channel grooves extend from the upper part of the thorn rod to the bottom of the thorn rod, and the number of the channel grooves is three and are uniformly distributed on the thorn rod;
the bag disc is of a horn-shaped structure, the upper part of the bag disc is in an opening shape, the diameter of the upper end surface of the bag disc is larger than that of the barbed rod, the diameter of the upper end surface of the bag disc is smaller than that of the inner box cylinder, the barbed rod penetrates through the bottom of the bag disc, the inner wall of the bottom of the bag disc is tightly attached to the outer wall of the barbed rod, and a passageway is formed between the bag disc and the channel groove;
the bottom of the piston plate is fixedly connected with the upper end of the spring, the lower end of the spring is fixedly connected with one end of the bracket, the bracket is L-shaped, and the other end of the bracket is fixedly connected with the bottom of the floating plate;
the air supply pipe is circular and is of a hollow tubular structure, the inner diameter of the air supply pipe is larger than the inner diameter of the through hole, air outlet holes are uniformly formed in the air supply pipe and face the inner side of the air supply pipe, the air supply pipe is communicated with the air delivery pipe, and the air delivery pipe penetrates through the support;
a limiting hole is formed in the floating plate in a penetrating mode, a limiting rod is fixed on the bottom wall and penetrates through the limiting hole, and the limiting rod protrudes out of the upper end face of the inner box barrel; the floating plate stably moves up and down under the action of the limiting rod and the limiting hole, and the floating plate is prevented from shifting in the floating process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210130734.6A CN114467811B (en) | 2022-02-12 | 2022-02-12 | Method for reducing death rate of mandarin fish fries |
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CN206005576U (en) * | 2016-08-24 | 2017-03-15 | 张宏亮 | Fry tames case |
CN208836820U (en) * | 2018-08-11 | 2019-05-10 | 杨成胜 | A kind of floating type mandarin fish seedling culture slot |
CN209359369U (en) * | 2018-12-12 | 2019-09-10 | 安徽省农业科学院水产研究所 | A kind of fry transport device |
CN112450131A (en) * | 2020-12-03 | 2021-03-09 | 王辉 | Quick placer of fry for aquaculture |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN206005576U (en) * | 2016-08-24 | 2017-03-15 | 张宏亮 | Fry tames case |
CN208836820U (en) * | 2018-08-11 | 2019-05-10 | 杨成胜 | A kind of floating type mandarin fish seedling culture slot |
CN209359369U (en) * | 2018-12-12 | 2019-09-10 | 安徽省农业科学院水产研究所 | A kind of fry transport device |
CN112450131A (en) * | 2020-12-03 | 2021-03-09 | 王辉 | Quick placer of fry for aquaculture |
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