CN110999829B - Glyptosternum maculatum Regan fry bionic breeding method - Google Patents

Glyptosternum maculatum Regan fry bionic breeding method Download PDF

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CN110999829B
CN110999829B CN201911333446.5A CN201911333446A CN110999829B CN 110999829 B CN110999829 B CN 110999829B CN 201911333446 A CN201911333446 A CN 201911333446A CN 110999829 B CN110999829 B CN 110999829B
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CN110999829A (en
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王万良
周建设
张驰
刘海平
潘瑛子
曾本和
王金林
王且鲁
刘飞
张立
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Institute of Animal Husbandry and Veterinary Medicine of Tibet Academy of Agriculture and Animal Husbandry Sciences
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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
    • 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
    • A01K61/00—Culture of aquatic animals
    • A01K61/80—Feeding devices
    • 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
    • A01K63/003—Aquaria; Terraria
    • 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
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/20—Animal feeding-stuffs from material of animal origin
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/142—Amino acids; Derivatives thereof
    • A23K20/147—Polymeric derivatives, e.g. peptides or proteins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
    • 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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Abstract

The invention provides a Glyptosternum maculatum fries bionic breeding method, which comprises the steps of hatching fries in a parallel groove, opening the fries by adopting microparticle compound feed and Chironomus larvae 10 days after the fries are filmed, transferring the fries to a bionic breeding system for breeding 20 days later, and feeding the fries as maggots; the bionic breeding system comprises a reservoir, a cement pond, a net cage and a temperature control device, wherein the net cage is arranged at the bottom of the cement pond, a shading net is built above the net cage, a layer of sand grains are laid at the bottom of the net cage, and hollow bricks are laid above the sand grains; an ultraviolet sterilization device and an aeration oxygenation device are arranged in the water storage tank, a water outlet of the water storage tank is connected with a water inlet of the temperature control device, a water outlet of the temperature control device is connected with a water inlet pipe of the net cage through a pipeline, and a water discharge pipe is arranged at the bottom of the cement pond. The bionic culture of the Glyptosternum maculatum Regan is really realized, the survival rate of the fry is high, and the fry grows well.

Description

Glyptosternum maculatum Regan fry bionic breeding method
Technical Field
The invention belongs to the technical field of fish culture, and particularly relates to a bionic cultivation method of Glyptosternum maculatum Regans fries.
Background
Glyptosternum maculatum Regans is plateau cold water fish, and belongs to Glyptosternum of Glyptophan of order Gliocladiformes. The water is distributed in regions such as Braomapatrila river in India and Tibet Linzhi, Tangjia and Nichika in China, the distribution altitude is about 4200m to 2800m, the water flow in the distribution region is turbulent, and the water temperature is lower than 15 ℃ all the year round.
The yield of the Glyptosternum family fishes is not large, but the fishes are tender in texture and less in interspinal stings, so the Glyptosternum family fishes are favored by the masses and have certain fishery value. In recent years, due to human intervention, the aquatic ecological environment is changed greatly, and in addition, due to serious artificial fishing, the quantity of Glyptosternum maculatum resources is reduced sharply, and part of river reach is already approaching the edge of extinction. Glyptosternum maculatum is a species of Glyptosternum maculatum fish, and early studies thereof are mostly seen in taxonomy, biophysics and evolution; most of the research in recent years focuses on phylogenetic and evolutionary aspects of the Glyptosternum maculatum fish , and less research is carried out on the artificial culture technology of Glyptosternum maculatum.
The invention patent 201310699056.6 discloses a method for cultivating Glyptosternum maculatum Regans fries and fingerlings by using artificial feed, which comprises the steps of feeding artificial compound feed by using an indoor cement pond and utilizing a clean river water source and manually controlling micro-flowing water, and cultivating the fries hatched from fertilized eggs into fingerlings with the full length of 3 cm. The stocking density of the patent is 2000-2500 tails/m2Is only suitable for yolk fries of 2-3 days old and is not suitable for fries which come out of the film for 20 days; the cultivation environment does not achieve true bionic, and artificial compound feed is adopted, so that the natural growth requirement of the Glyptosternum maculatum Regan fry is not met.
Disclosure of Invention
In order to solve the technical problems, the invention provides a Glyptosternum maculatum Regans fry bionic cultivation method, which completely simulates the natural growth of Glyptosternum maculatum Regans from the cultivation environment and feeding, really realizes the bionic cultivation of Glyptosternum maculatum Regans, and has high survival rate and good growth of the Glyptosternum maculatum Regans fry.
The technical scheme adopted by the invention is as follows:
a method for culturing the fry of Glyptosternum maculatum Regan in bionic manner comprises incubating in a parallel tank, opening by microparticle mixed feed and Chironomus larvae 10 days after the fry emerges from the membrane, culturing for 20 days, transferring to a bionic culturing system, and feeding fly larvae as feed;
the bionic breeding system comprises a reservoir, a cement pond, a net cage and a temperature control device, wherein the net cage is arranged at the bottom of the cement pond, a shading net is built above the net cage, a layer of sand grains are laid at the bottom of the net cage, and hollow bricks are laid above the sand grains; an ultraviolet sterilization device and an aeration oxygenation device are arranged in the water storage tank, a water outlet of the water storage tank is connected with a water inlet of the temperature control device, a water outlet of the temperature control device is connected with a water inlet pipe of the net cage through a pipeline, and a water discharge pipe is arranged at the bottom of the cement pond.
The protein content of the micro-particle compound feed is 50-55%, the fat content is 10%, and the particle size is 0.2 mm. The Glyptosternum maculatum Regans fry growth requirements are met, and the grain size of 0.2mm is easy to digest and can arouse the feeding interest of the fry.
Preferably, the mass ratio of the microparticle compound feed to the chironomus larvas is 1: 3. glyptosternum maculatum Regans is a prey feeding fish, the micro-particle compound feed in the proportion is mixed with the shake mosquitoes, the prey feeding property and the palatability of the feed are considered in the design of the initial feed, and the feeding and growth conditions of the fries are good.
The method for cultivating the fly maggots comprises the following steps: in a greenhouse environment, selecting a grain mixture containing bran to cultivate sterile flies; placing the tripe in the container, and allowing the fly maggots to grow in the tripe after 3-4 days; the tripe with maggot is put into the net cage and replaced every 20 days. According to the food preference of the Glyptosternum maculatum Regan fry, the food habit of the natural ecological environment is simulated, and the growth of the fry is facilitated.
The initial mesh of the net cage is 1mm, and the culture density of the net cage is 300 tails/m3(ii) a After 50 days of cultivation, the net cage with the mesh of 2mm is replaced, and the cultivation density of the net cage is 100 tails/m3. The meshes of the net cage are changed along with the growth of the fry, so that the flowing water in the net cage is smoother, and the water exchange is facilitated to ensure the water quality and the flowing water environment; the culture density is changed according to the growth of the fry, which is more beneficial to the healthy growth of the fry and avoids the occurrence of saprolegniasis.
The sand grains of the invention contain 5 percent of mud. Adding a proper amount of mud is more easy to breed microorganisms, and facilitates the decomposition of the excreta of Glyptosternum maculatum Regans, so that the Glyptosternum maculatum Regans can be finally converted into the bait of Glyptosternum maculatum Regans through the action of a food chain step by step; meanwhile, the Glyptosternum maculatum Regan can purify water, and is beneficial to survival and growth of Glyptosternum maculatum Regan.
The hollow bricks are stacked layer by layer to be level with the water surface, and the hollow bricks occupy one fourth of the area of the bottom of the net cage. Glyptosternum maculatum is liked to be adsorbed in the hollow part of the brick, so that the natural ecological environment can be better simulated.
The bottom of the bottom surface and the bottom of the peripheral side wall of the net cage are both solid plates, the net cage is arranged close to the side wall of the cement pool, the water inlet pipe is arranged at one side of the net cage close to the cement pool, the water drain pipe is arranged at the bottom of the other side of the cement pool, and the water inlet pipe and the water drain pipe are both provided with electromagnetic valves. The water inlet pipe and the water outlet pipe of the bionic system are arranged on two sides of the cement pond relatively, so that the flowing of water is facilitated, and the electromagnetic valve is arranged, so that the automatic control of the water flow speed is conveniently realized.
Preferably, the height of the cement pond is 150cm, and the water depth in the cement pond is 50-60 cm; the height of the net cage is consistent with that of the cement pool, the area of the net cage accounts for half of that of the cement pool, and gaps are reserved between the two sides of the net cage and the wall of the cement pool; the shading net is a black net cover.
Since the Glyptosternum maculatum fries lives on the bank in natural rivers and the general water depth is about 50-90cm, the water depth is 50-60cm, the designed cement pond height is 150, and the daily operation and management are convenient. The area of the net cage accounts for half of that of the cement pond, the large-mesh net cage is convenient to replace regularly, gaps are reserved between the two sides of the net cage and the wall of the cement pond, certain illumination is guaranteed on the two sides of the net cage, the survival situation of Glyptophan maculatum Regans in the net cage is convenient to observe, and water body exchange is facilitated.
The water storage tank is filled with underground water, the water temperature is 10-12 ℃, the dissolved oxygen is more than 7.5mg/L, and the pH value is 8.1-8.4; the flow of the water inlet pipe and the flow of the water outlet pipe are both 8-9m3H is used as the reference value. Simulating the water quality and water flow conditions of the natural growth environment of Glyptosternum maculatum Regan, and the water quality is good.
The invention has the beneficial effects that:
1. the method comprises the steps of hatching in a parallel groove, feeding opening bait which is microparticle compound feed and chironomus larvae, culturing for 20 days, transferring to a bionic culturing system for culturing, and feeding the feed which is maggots; the bionic breeding system is a cement pond running water breeding system, a net cage is arranged in a cement pond to prevent fish fries from falling off, sand grains are laid in the net cage, hollow bricks are placed, the oxygen content is kept to be above 7.5mg/L through an aeration and oxygenation device, a temperature control device keeps the natural water temperature to be 10-12 ℃, an ultraviolet sterilization device is arranged to ensure the water quality and improve the survival rate of the fish fries, and the natural ecological environment is simulated. According to the life habit of the Glyptosternum maculatum Regan, the natural growth of the Glyptosternum maculatum Regan is completely simulated from the cultivation environment and feeding, no extra medicine for preventing diseases and maintaining water quality is needed, the bionic cultivation of the Glyptosternum maculatum Regan is really performed, the survival rate of the fry is high, and the fry grows well.
2. The protein content of the micro-particle compound feed selected as the initial bait is 50-55%, the fat content is 10%, and the particle size is 0.2mm, so that the growth requirement of Glyptosternum maculatum Regan is met; glyptosternum maculatum Regans is a prekinetic fish, and the mass ratio of the microparticle compound feed to chironomus larvae is controlled to be 1: 3, not only considering the food bias but also considering the palatability of the bait, the feeding and growth conditions of the seedlings are good; after 20 days, the feed is the fly maggots, the tripes with the fly maggots are placed into the net cage, and the tripes are replaced every 20 days, so that the feeding habit in the natural ecological environment is completely simulated.
3. The initial mesh of the net cage is 1mm, and the breeding density of the net cage is 300 tails/m3(ii) a After 50 days of cultivation, the net cage with the mesh of 2mm is replaced, and the cultivation density of the net cage is 100 tails/m3. Fry with fishThe mesh of the net cage is replaced for the purpose that the flowing water in the net cage is smoother, and the water exchange is more facilitated to ensure the water quality and the flowing water environment; the culture density is changed according to the growth of the fry, which is more beneficial to the healthy growth of the fry and avoids the occurrence of saprolegniasis.
4. The bottom surface and the bottom parts of the peripheral side walls of the net cage are solid plates, so that sand grains are convenient to place, and the sand grains cannot be lost in a water flow environment; the net cage is arranged close to the side wall of the cement pond, and the water inlet pipe and the water outlet pipe are oppositely arranged at two sides of the cement pond, so that the flowing direction of a water body is conveniently controlled; the inlet tube and the drain pipe are provided with electromagnetic valves, so that the automatic control of the water flow rate is conveniently realized.
Drawings
FIG. 1 is a structural view of the biomimetic breeding system of the present invention.
Fig. 2 is a cross-sectional view of a cement pit.
Reference numerals: 1. the device comprises a water storage tank, 2, a temperature control device, 3, a cement pond, 4, a net cage, 5, an electromagnetic valve, 6, a water surface, 11, an aeration and oxygenation device, 12, an ultraviolet sterilization device, 31, a water inlet pipe, 32, a water discharge pipe, 41, a solid plate, 42 and hollow bricks.
Detailed Description
In order to more clearly and specifically illustrate the technical solution of the present invention, the present invention is further described by the following embodiments. The following examples are intended to illustrate the practice of the present invention and are not intended to limit the scope of the invention.
Example 1
As shown in figures 1 and 2, a method for bionic cultivation of Glyptosternum maculatum Regan fries comprises hatching in a parallel tank, opening with microparticle compound feed and Chironomus larvae 10 days after the fries are out of the membrane, culturing for 20 days, transferring to a bionic cultivation system, and feeding fly maggots as feed;
the bionic breeding system comprises a reservoir 1, a cement pond 3, a net cage 4 and a temperature control device 2, wherein the net cage 4 is arranged at the bottom of the cement pond 3, a shading net is built above the net cage 4, a layer of sand grains are laid at the bottom of the net cage 4, and hollow bricks 42 are laid above the sand grains; an ultraviolet sterilization device 11 and an aeration oxygenation device 12 are arranged in the water storage tank 1, a water outlet of the water storage tank 1 is connected with a water inlet of the temperature control device 2, a water outlet of the temperature control device 2 is connected with a water inlet pipe 31 of the net cage 4 through a pipeline, and a water discharge pipe 32 is arranged at the bottom of the cement pond 3.
The reservoir is underground water, the dissolved oxygen is above 7.5mg/L through the aeration oxygenation device, the temperature control device keeps the water temperature at 10-12 ℃, water is directly fed from the net cage, the flow rate of the fed water is conveniently controlled, the water is discharged from a drain pipe of the cement pond, and the bionic running water cultivation is really realized.
Example 2
This example is based on example 1:
the protein content of the micro-particle compound feed is 50-55%, the fat content is 10%, and the particle size is 0.2 mm.
Example 3
This example is based on example 1:
the protein content of the micro-particle compound feed is 50-55%, the fat content is 10%, and the particle size is 0.2 mm.
The mass ratio of the microparticle compound feed to the chironomus larvas is 1: 3.
example 4
This example is based on example 1:
the protein content of the micro-particle compound feed is 50-55%, the fat content is 10%, and the particle size is 0.2 mm.
The mass ratio of the microparticle compound feed to the chironomus larvas is 1: 3.
the method for breeding the fly maggots comprises the following steps: in a greenhouse environment, selecting a grain mixture containing bran to cultivate sterile flies; placing the tripe in the container, and allowing the fly maggots to grow in the tripe after 3-4 days; the tripe with maggot is put into the net cage and replaced every 20 days.
Example 5
This example is based on example 1:
the initial mesh of the net cage is 1mm, and the breeding density of the net cage is 300 tails/m3(ii) a After 50 days of cultivation, the net cage with the mesh of 2mm is replaced, and the cultivation density of the net cage is 100 tails/m3。
Example 6
This example is based on example 1:
the initial mesh of the net cage is 1mm, and the breeding density of the net cage is 300 tails/m3(ii) a After 50 days of cultivation, the net cage with the mesh of 2mm is replaced, and the cultivation density of the net cage is 100 tails/m3。
The sand contains 5% of mud.
Example 7
This example is based on example 1:
the initial mesh of the net cage is 1mm, and the breeding density of the net cage is 300 tails/m3(ii) a After 50 days of cultivation, the net cage with the mesh of 2mm is replaced, and the cultivation density of the net cage is 100 tails/m3。
The sand contains 5% of mud.
The hollow bricks are stacked layer by layer to be level with the water surface, and the hollow bricks occupy one fourth of the area of the bottom of the net cage.
Example 8
This example is based on example 1:
the water inlet pipe is arranged at one side of the net cage close to the cement pond, the water outlet pipe is arranged at the bottom of the other side of the cement pond, and the water inlet pipe and the water outlet pipe are both provided with electromagnetic valves.
Example 9
This example is based on example 1:
the water inlet pipe is arranged at one side of the net cage close to the cement pond, the water outlet pipe is arranged at the bottom of the other side of the cement pond, and the water inlet pipe and the water outlet pipe are both provided with electromagnetic valves.
The height of the cement pool is 150cm, and the water depth in the cement pool is 50-60 cm; the height of the net cage is consistent with that of the cement pool, the area of the net cage accounts for half of that of the cement pool, and gaps are reserved between the two sides of the net cage and the wall of the cement pool; the shading net is a black net cover.
Example 10
This example is based on example 1:
the water storage tank is filled with underground water, the water temperature is 10-12 ℃, the dissolved oxygen is more than 7.5mg/L, and the pH value is 8.1-8.4; the flow of the water inlet pipe and the flow of the water outlet pipe are both 8-9m3/h。
The aeration and oxygenation device of the invention is an oxygenation pump.
The invention is provided with a controller, and realizes the automatic control of dissolved oxygen, water temperature and water flow rate by electrically connecting the oxygenation pump, the temperature control device and the electromagnetic valve with the controller.
The method comprises the steps of hatching in a parallel groove, opening by using a microparticle compound feed and chironomus larvae 10 days after fry are taken out of a film, transferring the fry into a cement pond of a fry breeding system after breeding for 20 days, putting 5000 fries of Glyptosternum maculatum Regans in total, and breeding for 158 days according to the breeding method of the invention, wherein the initial full length and the weight of the fry are the length and the weight of 10-day-old fry:
Figure 10000256886347
Figure 10000256898996
the above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (5)

1. A Glyptosternum maculatum Regan fry bionic breeding method is characterized in that: hatching in a parallel groove, opening by using microparticle compound feed and chironomus larvae 10 days after the fry comes out of the film, culturing for 20 days, transferring to a bionic culturing system for culturing, and feeding the feed which is maggots;
the bionic breeding system comprises a reservoir, a cement pond, a net cage and a temperature control device, wherein the net cage is arranged at the bottom of the cement pond, a shading net is built above the net cage, a layer of sand grains are laid at the bottom of the net cage, and hollow bricks are laid above the sand grains; an ultraviolet sterilization device and an aeration oxygenation device are arranged in the water storage tank, a water outlet of the water storage tank is connected with a water inlet of the temperature control device, and a water outlet of the temperature control device is connected with a water inlet pipe of the net cage through a pipeline; a drain pipe is arranged at the bottom of the cement pond;
the protein content of the micro-particle compound feed is 50-55%, the fat content is 10%, and the particle size is 0.2 mm; the mass ratio of the microparticle compound feed to the chironomus larvas is 1: 3;
the initial mesh of the net cage is 1mm, and the breeding density of the net cage is 300 tails/m3(ii) a After 50 days of cultivation, the net cage with the mesh of 2mm is replaced, and the cultivation density of the net cage is 100 tails/m3；
The sand grains contain 5% of mud;
the hollow bricks are stacked layer by layer to be level with the water surface, and the hollow bricks occupy one fourth of the area of the bottom of the net cage;
the bottom surface of the net cage and the bottoms of the peripheral side walls are solid plates.
2. The bionic cultivation method of Glyptosternum maculatum Regans seedlings according to claim 1, characterized in that: the method for breeding the fly maggots comprises the following steps: in a greenhouse environment, selecting a grain mixture containing bran to cultivate sterile flies; placing the tripe in the container, and allowing the fly maggots to grow in the tripe after 3-4 days; the tripe with maggot is put into the net cage and replaced every 20 days.
3. The bionic cultivation method of Glyptosternum maculatum Regans seedlings according to claim 1, characterized in that: the water inlet pipe is arranged at one side of the net cage close to the cement pond, the water outlet pipe is arranged at the bottom of the other side of the cement pond, and the water inlet pipe and the water outlet pipe are both provided with electromagnetic valves.
4. The bionic cultivation method of Glyptosternum maculatum Regans seedlings according to claim 3, characterized in that: the height of the cement pool is 150cm, and the water depth in the cement pool is 50-60 cm; the height of the net cage is consistent with that of the cement pool, the area of the net cage accounts for half of that of the cement pool, and gaps are reserved between the two sides of the net cage and the wall of the cement pool; the shading net is a black net cover.
5. The bionic cultivation method of Glyptosternum maculatum Regans seedlings according to claim 1, characterized in that: the water storage tank is filled with underground water, the water temperature is 10-12 ℃, the dissolved oxygen is more than 7.5mg/L, and the pH value is 8.1-8.4; the flow of the water inlet pipe and the flow of the water outlet pipe are both 8-9m3/h。
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