CN113331095A - Breeding method of crassostrea gigas capable of improving meat yield - Google Patents
Breeding method of crassostrea gigas capable of improving meat yield Download PDFInfo
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- CN113331095A CN113331095A CN202110630332.8A CN202110630332A CN113331095A CN 113331095 A CN113331095 A CN 113331095A CN 202110630332 A CN202110630332 A CN 202110630332A CN 113331095 A CN113331095 A CN 113331095A
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- crassostrea gigas
- meat yield
- oysters
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- 238000009395 breeding Methods 0.000 title claims abstract description 54
- 241000548230 Crassostrea angulata Species 0.000 title claims abstract description 51
- 235000013372 meat Nutrition 0.000 title claims abstract description 41
- 241000237502 Ostreidae Species 0.000 claims abstract description 57
- 235000020636 oyster Nutrition 0.000 claims abstract description 57
- 230000001488 breeding effect Effects 0.000 claims abstract description 30
- 230000013011 mating Effects 0.000 claims abstract description 17
- 235000015170 shellfish Nutrition 0.000 claims abstract description 9
- 238000005457 optimization Methods 0.000 claims abstract description 4
- 238000006213 oxygenation reaction Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- OESSQZSTPKCQOE-UHFFFAOYSA-M sodium;2,4-dinitronaphthalen-1-olate Chemical compound [Na+].C1=CC=C2C([O-])=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 OESSQZSTPKCQOE-UHFFFAOYSA-M 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000012258 culturing Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 238000005188 flotation Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 241000237519 Bivalvia Species 0.000 description 1
- 201000000297 Erysipelas Diseases 0.000 description 1
- 241000237852 Mollusca Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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
- 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
- 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
- A01K61/65—Connecting or mooring devices therefor
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/60—Fishing; Aquaculture; Aquafarming
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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 provides a crassostrea gigas breeding method capable of improving meat yield, which comprises the following steps: s1: selecting parent shellfish: selecting crassostrea gigas with golden shell color as a basic population from crassostrea gigas wild population, and taking golden shell color and growth speed as breeding targets; s2: secondary optimization: selecting the oysters with golden left shell and high meat yield from the offspring bred by the parent shellfish group selected in the S2, wherein the number of the oysters is 30-35 respectively; s3: mating the groups, and mating the male and female oysters selected in the S1; s4: and (3) second breeding: the shell color of the offspring in S is golden yellow. The breeding method of crassostrea gigas capable of improving the meat yield provided by the invention has the advantages that a mixed breeding technology combining family breeding and group breeding is adopted, the crassostrea gigas is continuously bred for at least 4 generations, and under the same breeding environment, compared with the crassostrea gigas which are not bred, the average shell height of 15 months old is high, and the average weight and the meat yield are respectively improved.
Description
Technical Field
The invention relates to the field of crassostrea gigas breeding methods, in particular to a crassostrea gigas breeding method capable of improving the meat yield.
Background
Oyster, commonly known as oyster and oyster, belongs to the phylum mollusca, class bivalvia, order pearl shell, is the first cultured shellfish in the world, is one of the important marine biological resources available to human beings, and is a globally distributed variety. The oyster is not only fresh and delicious in meat and rich in nutrition, but also has unique health care function and medicinal value, and is a seafood with high nutritional value. The zinc content of oysters is the top of human food. Oyster is thought to have the functions of treating weakness, relieving erysipelas, lowering blood pressure, nourishing yin and strengthening yang in all ages and countries.
At present, in order to improve the meat yield of oysters, mixed breeding technologies such as family breeding, group breeding and the like are adopted, and multi-generation breeding is carried out, so that the meat yield of the oysters is improved, wherein in the breeding process, the oysters need to be cultured by equipment;
in the process of breeding, need to guarantee that the aquatic has sufficient oxygen to supply the oyster to breathe, at present usually through oxygenation equipment to aquatic oxygenation, but oxygen diffusion is slower in the aquatic, and oxygenation equipment has certain distance apart from the oyster usually, and gaseous unable direct action is on the oyster, and the oxygenation effect is not good.
Therefore, there is a need to provide a method for breeding crassostrea gigas capable of improving the meat yield to solve the above technical problems.
Disclosure of Invention
The invention provides a breeding method of crassostrea gigas capable of improving meat yield, which solves the problems that oxygenation equipment is usually used for oxygenating water, the oxygenation equipment is usually a certain distance away from the crassostrea gigas, gas cannot directly act on the crassostrea gigas, and the oxygenation effect is poor at present.
In order to solve the technical problems, the method for breeding the crassostrea gigas capable of improving the meat yield comprises the following steps:
s1: selecting parent shellfish: selecting crassostrea gigas with golden shell color as a basic population from crassostrea gigas wild population, and taking golden shell color and growth speed as breeding targets;
s2: secondary optimization: selecting the oysters with golden left shell and high meat yield from the offspring bred by the parent shellfish group selected in the S1, wherein the number of the oysters is 30-35 respectively;
s3: mating the groups, and mating the male and female oysters selected in the S2;
s4: and (3) second breeding: performing male-female single-pair single-mating breeding on the oysters with golden shell color and high growth speed in the S2 to establish a family;
s5: mating the offspring in the S3 with the offspring in the S4, wherein the shells of the offspring are all pure golden yellow, the oysters with high growth speed are mated, continuous mating is not less than four generations, the left shell is pure golden yellow in the mating process of each generation, and the oysters with high growth speed are hybridized;
wherein the oysters from S1 to S5 are all cultivated by using an oxygenation-regulated culture device.
Preferably, oxygenation regulation culture apparatus is including bearing the raft, the inside that bears the raft is provided with oxygenation device, oxygenation device includes mixing portion and connecting pipe, both sides all are fixed in through the connecting plate around the mixing portion between the both sides of bearing the raft inner wall, and the left and right sides of mixing portion all communicates and is responsible for.
Preferably, the connecting pipe is fixedly connected to the bottom of the inner wall of the bearing raft, and the middle of the connecting pipe is communicated with the main pipe through a branch pipe.
Preferably, a fan is fixedly mounted on the connecting plate through a mounting frame, and the output end of the fan is communicated with the input end of the mixing part.
Preferably, the fixed carrier that holds of a plurality of air guides that is provided with in bottom of connecting pipe, the carrier that holds of air guide extends to the outside of bearing the raft through the bar hole that bears the raft bottom, the carrier that holds of air guide includes the hose, around being equipped with a plurality of rings portion of placing on the hose, the oyster sets up in placing whole inside.
Preferably, a plurality of bleeder vents are formed in the inner side of the placing ring part, and bearing cloth is fixedly arranged on the surface of the placing ring part.
Preferably, it is fixed that the circle of placing passes through the mounting, the mounting includes the fixed strip, the fixed orifices has been seted up to the one end of fixed strip, the other end of fixed strip is provided with the arch.
Preferably, a protective cover is fixedly mounted on the connecting plate through a supporting frame and located outside the fan.
Preferably, solar panels are arranged on two sides of the protective cover.
Preferably, both sides of the load raft are fixedly provided with buoyancy adjusting assemblies.
Preferably, the buoyancy adjusting assembly 4 includes a buoy 41, two ends of the buoy 41 are fixedly connected with two sides of the bearing raft 1 through fixing members, a plurality of water inlet holes 42 are symmetrically formed in two sides of the buoy 41, a water pumping port 43 is arranged above one side of the buoy 41, and a sealing cover is connected to the water pumping port 43 through a thread;
preferably, a sealing assembly 5 is arranged inside the float 41, the sealing assembly 5 includes a screw rod 51, the screw rod 51 is rotatably connected to the flanges 11 on the two sides of the load-bearing raft 1, one end of the screw rod 51 extends into the float 41 through an assembly hole, a surface thread of the screw rod 51 is connected with an internal threaded pipe 52, two sides of the surface of the internal threaded pipe 52 are rotatably connected with connecting arms 53, and the top end of the screw rod 51 is fixedly connected with a driving handle 57, so as to facilitate screwing the screw rod 51;
preferably, the sealing assembly 5 further includes two sealing plates 55, each sealing plate 55 is an arc-shaped plate, one side of each sealing plate 55 is attached to the corresponding water inlet 42, a rubber pad 56 is bonded to one side of each sealing plate 55, a fixing frame 54 is fixedly connected to the other side of each sealing plate 55, and one end of each fixing frame 54 is rotatably connected to the corresponding connecting arm 53;
preferably, the positioning rods 6 are symmetrically and fixedly mounted inside the float 41, the top ends of the positioning rods 6 are fixedly connected with positioning sleeves 7, and the positioning sleeves 7 are sleeved on the surface of the fixing frame 54.
Compared with the related technology, the breeding method of crassostrea gigas capable of improving the meat yield has the following beneficial effects:
the invention provides a breeding method of crassostrea gigas capable of improving the meat yield, wherein an air guide bearing piece is arranged, a hose in the air guide bearing piece is communicated with an oxygen increasing device, the crassostrea gigas is arranged in a placing ring part on the hose, when oxygen is required to be increased, the oxygen increasing device can guide airflow into the hose and discharge the airflow through an air hole on the hose, so that the airflow directly acts on the crassostrea gigas, the crassostrea gigas have sufficient oxygen, the crassostrea gigas grow better, and the meat yield of the crassostrea gigas is improved.
Drawings
FIG. 1 is a schematic block diagram of a first embodiment of a method for breeding oysters with improved meat production rate according to the invention;
FIG. 2 is a schematic structural diagram of an oxygenation regulation culture apparatus in the breeding method of crassostrea gigas capable of improving meat yield provided by the invention;
figure 3 is a partial side view of the load raft shown in figure 2;
fig. 4 is a top view of the load raft shown in fig. 3;
FIG. 5 is an enlarged view of portion A of FIG. 2;
FIG. 6 is a schematic mechanical view of the mount shown in FIG. 5;
fig. 7 is a schematic structural view of the sealing assembly shown in fig. 2.
Reference numbers in the figures: 1. a load-bearing raft, wherein the load-bearing raft,
2. an oxygenation device 21, a mixing part 22, a connecting plate 23, a fan 24, a main pipe 25, a branch pipe 26 and a connecting pipe,
3. an air guide bearing piece 31, a hose 32, a placing ring part 33, an air hole,
4. a buoyancy adjusting component 41, a buoy 42, a water inlet hole 43 and a water pumping port,
5. a sealing component 51, a screw rod 52, an internal thread pipe 53, a connecting arm 54, a fixing frame 55, a sealing plate 56, a rubber cushion 57 and a driving handle,
6. a positioning rod 7, a positioning sleeve 8, a mounting rack 9, a protective cover 10 and a solar panel,
11. the flanges are provided with a plurality of grooves,
12. a fixing piece 121, a fixing strip 122, a fixing hole 123 and a projection,
13. a support frame.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Please refer to fig. 1, wherein fig. 1 is a schematic block diagram of a breeding method of crassostrea gigas capable of improving meat yield according to a first embodiment of the present invention. The breeding method of crassostrea gigas capable of improving the meat yield comprises the following steps:
s1: selecting parent shellfish: selecting crassostrea gigas with golden shell color as a basic population from crassostrea gigas wild population, and taking golden shell color and growth speed as breeding targets;
s2: secondary optimization: selecting the oysters with golden left shell and high meat yield from the offspring bred by the parent shellfish group selected in the S1, wherein the number of the oysters is 30-35 respectively;
s3: mating the groups, and mating the male and female oysters selected in the S2;
s4: and (3) second breeding: performing male-female single-pair single-mating breeding on the oysters with golden shell color and high growth speed in the S2 to establish a family;
s5: mating the offspring in the S4 with the offspring in the S3, wherein the shells of the offspring are all pure golden yellow, the oysters with high growth speed are mated, continuous mating is not less than four generations, the left shell is pure golden yellow in the mating process of each generation, and the oysters with high growth speed are hybridized;
wherein the oysters from S1 to S5 are all cultivated by using an oxygenation-regulated culture device.
Transferring the oyster seedlings in the S5 to a sea area for cultivation; if meeting the attachment period of the larvae of the portuguese oysters in the natural sea area, the larvae can be transferred to a pond for cultivation, and then transferred to the sea area for cultivation after the attachment period; culturing in sea area for 90-120 days at water temperature of 15-26 deg.C and salinity of 26-30;
periphyton was cleaned periodically during the cultivation and growth was measured.
Second embodiment
Referring to fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, based on the breeding method of crassostrea gigas capable of improving the meat yield provided in the first embodiment of the present application, the second embodiment of the present application provides another breeding method of crassostrea gigas capable of improving the meat yield. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the breeding method of crassostrea gigas capable of improving meat yield provided by the second embodiment of the present application is different in that the breeding method of crassostrea gigas capable of improving meat yield,
the oxygenation is adjusted culture apparatus and is including bearing raft 1, the inside that bears raft 1 is provided with oxygenation device 2, oxygenation device 2 includes mixing portion 21 and connecting pipe 26, both sides all are fixed in through connecting plate 22 around mixing portion 21 between the both sides of bearing raft 1 inner wall, and the left and right sides of mixing portion 21 all communicates and is responsible for 24.
Mixing portion 21 is the box that the downside is the rectangle in the middle of the terrace with edge, is responsible for 24 both sides that are located mixing portion, better after gaseous entering to the inside of being responsible for 24 of water conservancy diversion of both sides, bears the inside cavity that is provided with of raft 1, and a plurality of bar holes have been seted up to the bottom, and the air guide bears carrier 3 and can extend to the direction that bears raft 1 through the bar hole.
The connecting pipe 26 is fixedly connected to the bottom of the inner wall of the load raft 1, and the middle of the connecting pipe 26 is communicated with the main pipe 24 through a branch pipe 25.
The connecting pipes 26 are arranged in a plurality, the distance between every two adjacent connecting pipes 26 is 20-30 cm, and the number of the branch pipes 25 corresponds to that of the connecting pipes 26.
A fan 23 is fixedly mounted on the connecting plate 22 through a mounting frame 8, and the output end of the fan 23 is communicated with the input end of the mixing part 21.
The fan 23 is powered by a battery, which is arranged on the connection plate 22.
The fixed carrier 3 that holds of a plurality of air guides that is provided with in bottom of connecting pipe 26, the carrier 3 is held in the air guide extends to the outside of bearing raft 1 through the bar hole that bears raft 1 bottom, the carrier 3 is held in the air guide includes hose 31, around being equipped with a plurality of rings portion 32 of placing on the hose 31, the oyster sets up in the inside of placing whole 32.
The distance between the adjacent air guide bearing pieces 3 is 15-20 cm, the hose 31 is made of plastic, the end part of the hose 31 is provided with a threaded connector, the bottom of the connecting pipe 26 is correspondingly provided with a threaded connector head, the hose 31 is in threaded connection with the connecting pipe 26, a sealing ring is arranged at the joint, and other connection modes can be adopted.
A plurality of breather holes 33 are opened on the inner side of the placing ring part 32, and bearing cloth is fixedly arranged on the surface of the placing ring part 32.
The friction on the surface of the placing ring part 32 of the hose 31 can be increased by arranging the carrying cloth, so that oysters are better attached to the surface, and the vent holes 33 are annularly arranged on the inner side of the placing ring part 32, and the number of the vent holes is 4-8.
The placing ring part 32 is fixed by the fixing part 12, the fixing part 12 includes a fixing strip 121, a fixing hole 122 is opened at one end of the fixing strip 121, and a protrusion 123 is provided at the other end of the fixing strip 121.
The fixed strip 121 is the plastics material, and fixed orifices 122 is interference fit with arch 123, and mounting 12 can be spacing placing circle portion 32, prevents it from scattering, and it can move about to place circle portion 31, and the regulation size of certain limit adapts to oyster's growth.
The connecting plate 22 is fixedly provided with a protective cover 9 through a supporting frame 13, and the protective cover 9 is positioned outside the fan 23.
Can protect fan 23 through setting up protection casing 9, prevent erosion fan 23 such as rainwater, the both sides of protection casing 9 all are provided with connecting portion, have seted up the fixed orifices on the connecting portion, correspond on the support frame 13 and are provided with the fixed orifices, carry out fixed mounting through the screw nut.
And solar panels 10 are arranged on two sides of the protective cover 9.
The solar panel 10 can supply power to the fan 23, is provided with a controller, an inverter, a storage battery and other devices in a matching manner, and is located below the protective cover 9.
Both sides of the bearing raft 1 are fixedly provided with buoyancy adjusting components 4.
The working principle of the crassostrea gigas breeding method capable of improving the meat yield is as follows:
during cultivation, oysters are placed inside the placing ring part 32, in the cultivation process, when oxygen is needed to be added, the fan 23 is started, the fan 23 guides airflow into the mixing part 21 and then flows into the two main pipes 24, and the airflow in the main pipes 24 enters the connecting pipes 26 through the branch pipes 25;
the airflow then enters the interior of the hose 31 in turn and is discharged through the vents 33, as the oysters are located within the resting ring 32, the airflow can act directly on the oysters, thereby providing sufficient oxygen for the oysters to grow healthier.
Compared with the related technology, the breeding method of crassostrea gigas capable of improving the meat yield has the following beneficial effects:
through setting up the air guide and holding thing 3, wherein the hose and the oxygenation device 2 intercommunication in the air guide holds the thing 3, the oyster sets up inside placing the circle portion 32 on the hose 31, when needs oxygenation, oxygenation device 2 can be with the air current leading-in to hose 31 inside, discharge by bleeder vent 33 on the hose 31 to air current and oyster direct action make the oyster grow have sufficient oxygen, thereby make the growth of oyster better, improve the play flesh rate of oyster.
Third embodiment
Referring to fig. 2, 3, 4 and 7, a third embodiment of the present application provides another crassostrea gigas breeding method capable of improving a meat yield based on the crassostrea gigas breeding method capable of improving a meat yield provided by the second embodiment of the present application.
The buoyancy adjusting assembly 4 comprises a buoy 41, two ends of the buoy 41 are fixedly connected with two sides of the bearing raft 1 through fixing pieces, a plurality of water inlet holes 42 are symmetrically formed in two sides of the buoy 41, a water pumping port 43 is arranged above one side of the buoy 41, and a sealing cover is connected to the water pumping port 43 in a threaded mode;
through setting up the mouth 43 that draws water can take out the inside water of flotation pontoon 41 through drawing the mouth, set up sealed lid and can prevent that debris from getting into and when need not adding water to flotation pontoon 41 inside, there is water to get into, through seting up a plurality of inlet openings, wherein after intaking through the inlet opening 42 that is located the downside, flotation pontoon 41 increases weight, whole raft 1 that bears moves down, then the liquid level is located the inlet opening 42 of inferior downside, then can continue to intake, in proper order the interpolation, it is higher than the inlet opening 42 that is located the upside to know flotation pontoon 41 liquid level.
The inside of flotation pontoon 41 is provided with seal assembly 5, seal assembly 5 includes lead screw 51, lead screw 51 rotates to be connected in bear on the flange 11 of raft 1 both sides, the one end of lead screw 51 extends to the inside of flotation pontoon 41 through the pilot hole, the surperficial threaded connection of lead screw 51 has internal thread pipe 52, the both sides on internal thread pipe 52 surface all rotate and are connected with linking arm 53, the top fixedly connected with of lead screw 51 drives handle 57, is convenient for twist and move lead screw 51;
the sealing assembly 5 further comprises two sealing plates 55, each sealing plate 55 is an arc-shaped plate, one side of each sealing plate 55 is attached to the corresponding water inlet 42, a rubber pad 56 is bonded to one side of each sealing plate 55, a fixing frame 54 is fixedly connected to the other side of each sealing plate 55, and one end of each fixing frame 54 is rotatably connected with the corresponding connecting arm 53;
a plurality of water inlet holes 42 on two sides can be sealed through the sealing plate 55, and the position of the sealing plate 55 is adjusted by screwing the screw rod, so that the weight of the buoy 41 can be adjusted, namely the depth of the bearing raft 1 is adjusted.
the fixing frame 54 can be positioned by arranging the positioning sleeve 7, so that the fixing frame can only transversely move along the positioning sleeve 7, namely the sealing plate 55 can only transversely move;
when the water surface temperature is about thirty ℃ in hot weather, the growth of oysters can be influenced by high temperature, and even a great amount of oysters die;
when the temperature rises, the driving handle 57 can be screwed clockwise, the driving handle 57 drives the screw rod 51 to rotate, the internal thread pipe 52 and the screw rod 51 act at the moment to move upwards, the internal thread pipe 52 pulls the two fixing frames 54 inwards through the connecting arm 53, so that the two sealing plates 55 and the water inlet hole 42 are pulled to move away, and at the moment, external water enters the inside of the buoy 41;
thereby increasing the weight of the buoy 41, making the whole bearing raft 1 sink, and more needing to select the sinking distance, and reversely screwing the driving handle 57 to make the sealing plate 55 seal the water inlet 42;
through adjusting the submerged degree of depth of bearing raft 1 to can make the oyster to moving certain distance under water, reduce the growth temperature of oyster, and cooperation oxygenation device 2 and air guide bear piece 3 still can keep the oxygen of oyster enough, thereby make the oyster can normal quick growth.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A breeding method of crassostrea gigas capable of improving meat yield is characterized by comprising the following steps:
s1: selecting parent shellfish: selecting crassostrea gigas with golden shell color as a basic population from crassostrea gigas wild population, and taking golden shell color and growth speed as breeding targets;
s2 second optimization: selecting the oysters with golden left shell and high meat yield from the offspring bred by the parent shellfish group selected in the S1, wherein the number of the oysters is 30-35 respectively;
s3: mating the groups, and mating the male and female oysters selected in the S2;
s4: and (3) second breeding: performing male-female single-pair single-mating breeding on the oysters with golden shell color and high growth speed in the S2 to establish a family;
s5: mating the offspring in the S4 with the offspring in the S3, wherein the shells of the offspring are all pure golden yellow, the oysters with high growth speed are mated, continuous mating is not less than four generations, the left shell is pure golden yellow in the mating process of each generation, and the oysters with high growth speed are hybridized;
wherein the oysters from S1 to S5 are all cultivated by using an oxygenation-regulated culture device.
2. The method for breeding crassostrea gigas capable of improving meat yield according to claim 1, wherein the oxygenation adjusting and culturing device comprises a bearing raft, an oxygenation device is arranged in the bearing raft, the oxygenation device comprises a mixing part and a connecting pipe, the front side and the rear side of the mixing part are fixed between the two sides of the inner wall of the bearing raft through connecting plates, and the left side and the right side of the mixing part are communicated with a main pipe.
3. The method for breeding crassostrea gigas capable of improving meat yield as claimed in claim 2, wherein the connecting pipe is fixedly connected to the bottom of the inner wall of the carrying raft, and the middle of the connecting pipe is communicated with the main pipe through a branch pipe.
4. The method for breeding crassostrea gigas capable of improving meat yield according to claim 3, wherein a fan is fixedly arranged on the connecting plate through a mounting rack, and the output end of the fan is communicated with the input end of the mixing part.
5. The method for breeding crassostrea gigas capable of improving meat yield as claimed in claim 4, wherein a plurality of air guide bearing members are fixedly arranged at the bottom of the connecting pipe, the air guide bearing members extend to the outside of the carrying raft through strip-shaped holes at the bottom of the carrying raft, the air guide bearing members comprise flexible pipes, a plurality of placing ring portions are wound on the flexible pipes, and the crassostrea gigas is arranged in the whole placing portions.
6. The breeding method of crassostrea gigas capable of improving meat yield according to claim 5, characterized in that a plurality of vent holes are formed on the inner side of the placing ring part, and a bearing cloth is fixed on the surface of the placing ring part.
7. The breeding method of crassostrea gigas capable of improving meat yield according to claim 6, characterized in that the placing ring part is fixed by a fixing part, the fixing part comprises a fixing strip, one end of the fixing strip is provided with a fixing hole, and the other end of the fixing strip is provided with a bulge.
8. The method for breeding crassostrea gigas capable of improving meat yield according to claim 2, wherein a protective cover is fixedly arranged on the connecting plate through a support frame, and the protective cover is positioned outside the fan.
9. The breeding method of crassostrea gigas with improved meat yield according to claim 8, wherein the solar panels are arranged on both sides of the protective cover.
10. The method for breeding crassostrea gigas capable of improving meat yield according to claim 2, wherein the two sides of the bearing raft are fixedly provided with buoyancy regulating assemblies.
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Citations (4)
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|---|---|---|---|---|
| CN201334475Y (en) * | 2008-12-09 | 2009-10-28 | 朱洪 | Device of engineering is bred on surface of water |
| CN103858803A (en) * | 2014-03-28 | 2014-06-18 | 中国海洋大学 | Method for breeding new golden-shell crassostrea gigas strain |
| CN103975879A (en) * | 2014-05-12 | 2014-08-13 | 福建省水产研究所 | Cultivation method of new strain of quickly-grown Portuguese oysters with golden yellow shells |
| CN206909446U (en) * | 2017-06-08 | 2018-01-23 | 中国海洋大学 | A kind of air lift type circulating water device of suitable monomer spat of oyster cultivation |
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- 2021-06-07 CN CN202110630332.8A patent/CN113331095B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201334475Y (en) * | 2008-12-09 | 2009-10-28 | 朱洪 | Device of engineering is bred on surface of water |
| CN103858803A (en) * | 2014-03-28 | 2014-06-18 | 中国海洋大学 | Method for breeding new golden-shell crassostrea gigas strain |
| CN103975879A (en) * | 2014-05-12 | 2014-08-13 | 福建省水产研究所 | Cultivation method of new strain of quickly-grown Portuguese oysters with golden yellow shells |
| CN206909446U (en) * | 2017-06-08 | 2018-01-23 | 中国海洋大学 | A kind of air lift type circulating water device of suitable monomer spat of oyster cultivation |
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