CN112385573A - Laying duck farming systems - Google Patents
Laying duck farming systems Download PDFInfo
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- CN112385573A CN112385573A CN202010853431.8A CN202010853431A CN112385573A CN 112385573 A CN112385573 A CN 112385573A CN 202010853431 A CN202010853431 A CN 202010853431A CN 112385573 A CN112385573 A CN 112385573A
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- laying
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- 241000272525 Anas platyrhynchos Species 0.000 title claims abstract description 53
- 238000009313 farming Methods 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000009395 breeding Methods 0.000 claims abstract description 26
- 230000001488 breeding effect Effects 0.000 claims abstract description 26
- 239000010865 sewage Substances 0.000 claims abstract description 14
- 230000017448 oviposition Effects 0.000 claims abstract description 8
- 238000004062 sedimentation Methods 0.000 claims description 75
- 230000007246 mechanism Effects 0.000 claims description 65
- 239000010802 sludge Substances 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 230000035622 drinking Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 244000144972 livestock Species 0.000 abstract description 4
- 238000003911 water pollution Methods 0.000 abstract description 2
- 241000272522 Anas Species 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 241000272517 Anseriformes Species 0.000 description 16
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000009304 pastoral farming Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
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Classifications
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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
- A01K31/00—Housing birds
- A01K31/22—Poultry runs ; Poultry houses, including auxiliary features, e.g. feeding, watering, demanuring
-
- 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
- A01K31/00—Housing birds
-
- 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
- A01K31/00—Housing birds
- A01K31/04—Dropping-boards; Devices for removing excrement
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Birds (AREA)
- Biodiversity & Conservation Biology (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention provides an egg laying duck breeding system, which comprises a duck shed; the playground is arranged on one side of the duck shed; the sewage discharge ditch is arranged outside the motion field; the water playing pool is arranged on one side of the playground and communicated with the sewage discharge ditch; the laying duck breeding system has the advantages that water pollution can be avoided, physiological requirements of laying duck production are effectively met, excrement recycling is achieved, water sources and the environment are protected, meanwhile, high yield and high quality of fine laying ducks can be kept, and safety, protection and supply of livestock products and income increase of farmers are facilitated.
Description
Technical Field
The invention relates to the technical field of agricultural cultivation, in particular to an egg laying duck cultivation system.
Background
Duck species in Yangtze river, Zhujiang river basin and coastal areas of China account for 68% of duck species in China, and the areas are developed in agriculture, rich in aquatic animal and plant resources and rich in grazing conditions. The water area environment and the grazing and semi-grazing breeding mode play an important role in the formation of good breed of the laying ducks in China, so that the laying ducks in China have excellent variety, and become the only field in the domestic animal husbandry which can compete with foreign varieties, such as Shao ducks, Jinding ducks and the like. Meanwhile, water can stimulate the secretion of the uropygial gland of the duck, meet the physiological requirements of laying ducks, maintain the production performance and the feather quality of the laying ducks and eliminate the value of old ducks. The production performance of the fine breed egg ducks in China is to be fully exerted, and the egg ducks cannot be completely separated from water.
With the promotion and implementation of national ecological environment policies, the environmental protection pressure of livestock and poultry breeding industry, particularly waterfowl industry, is continuously increased, and the shortage of livestock product supply and the influence on the income increase of farmers are caused by the banning and the limited breeding in some areas. In rural areas where the breeding mode cannot be completely changed in a short time, the waterless breeding of laying ducks is difficult to implement uniformly, and the production performance of fine laying ducks and the quality guarantee of duck products are not facilitated.
Therefore, there is a need to provide a new laying duck breeding system to solve the above technical problems.
Disclosure of Invention
The invention aims to provide the laying duck breeding system which can avoid water pollution, effectively meet the physiological requirements of laying ducks in production, realize the resource utilization of excrement, be beneficial to protecting water sources and the environment, simultaneously keep the high yield and high quality of fine laying ducks and be beneficial to the safety and the supply of livestock products and the income increase of farmers.
In order to solve the technical problem, the laying duck breeding system provided by the invention comprises: a duck shed; the playground is arranged on one side of the duck shed; the sewage discharge ditch is arranged outside the motion field; the water playing pool is arranged on one side of the playground and communicated with the sewage discharge ditch; the sedimentation mechanism is arranged on one side of the water playing pool and comprises a primary sedimentation tank, a secondary sedimentation tank and a tertiary sedimentation tank, and the primary sedimentation tank is respectively communicated with the duck shed and the water playing pool; the oxidation pond is arranged on one side of the paddling pond, and is communicated with the paddling pond and the three-stage sedimentation pond; the three drainage mechanisms are arranged in the sedimentation mechanism and comprise mounting seats, the mounting seats are fixedly mounted on the sedimentation mechanism, threaded rods are rotatably mounted on the mounting seats, and valve plates are mounted on the threaded rods in a threaded manner; the three sludge discharge mechanisms are arranged in the sedimentation mechanism and comprise rotating shafts, the rotating shafts are rotatably arranged on the sedimentation mechanism, and spiral blades are fixedly arranged on the rotating shafts; the three drain holes are respectively formed in the inner walls of the first-stage sedimentation tank, the second-stage sedimentation tank and the third-stage sedimentation tank; the three sliding grooves are respectively formed in the inner walls of the three drain holes, and the inner walls of the sliding grooves are in sliding connection with the corresponding valve plates; and the three sludge discharge holes are respectively formed in the inner walls of the first-stage sedimentation tank, the second-stage sedimentation tank and the third-stage sedimentation tank.
Preferably, the drainage mechanism further comprises a first motor, a first bevel gear is fixedly mounted on an output shaft of the first motor, a second bevel gear is fixedly mounted at the top end of the threaded rod, and the second bevel gear is meshed with the first bevel gear.
Preferably, the valve plate is provided with a thread groove, and the inner wall of the thread groove is in threaded connection with the threaded rod.
Preferably, arrange mud mechanism still includes the second motor, second motor fixed mounting deposits on the mechanism, just the output shaft and the pivot fixed connection of second motor, rotate in the pivot and install the support, the inner wall fixed connection in support and mud discharge hole.
Preferably, one side of the sedimentation mechanism is provided with a first lifting pump, a water inlet of the first lifting pump is communicated with the water-playing pool, and a water outlet of the first lifting pump is communicated with the primary sedimentation pool.
Preferably, one side of the water playing pool is provided with a second water pump, a water inlet of the second water pump is communicated with the oxidation pool, and a water outlet of the second water pump is communicated with the water playing pool.
Preferably, a drinking trough is arranged in the duck shed and communicated with the primary sedimentation tank.
Preferably, straw is laid in the duck shed, and rain shelters are arranged above the playground and the water playing pool.
Preferably, the playground is made of concrete.
Compared with the related art, the laying duck breeding system provided by the invention has the following beneficial effects:
the invention provides an egg laying duck breeding system, wherein a playground is arranged on one side of a duck shed, a sewage discharge ditch is arranged outside the playground, a water playing pool is arranged on one side of the playground, and the water playing pool is communicated with the sewage discharge ditch, so that the egg laying duck breeding physiological requirements can be effectively met; deposit the mechanism and establish one side of playing in the pond, it includes one-level sedimentation tank, second grade sedimentation tank and tertiary sedimentation tank to deposit the mechanism, just the one-level sedimentation tank is linked together in playing in the pond, and is three drainage mechanism establishes in deposiing the mechanism, drainage mechanism includes the mount pad, mount pad fixed mounting is in deposit in the mechanism, rotate on the mount pad and install the threaded rod, the valve plate is installed to the screw thread on the threaded rod, and is three arrange mud mechanism and establish in deposiing the mechanism, arrange mud mechanism and include the pivot, the pivot rotates to be installed deposit in the mechanism, fixed mounting has helical blade in the pivot, can utilize water resource cyclic utilization, and is energy-concerving and environment-protective, and the convenience is recycled excrement and dirty resource.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the laying duck breeding system provided by the invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the precipitation mechanism of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the drain mechanism of FIG. 3;
FIG. 5 is a schematic top cross-sectional view of the structure of FIG. 3;
fig. 6 is a schematic sectional structure view of the sludge discharge mechanism in fig. 5.
Reference numbers in the figures: 1. a duck shed; 2. a sports field; 3. a sewage draining ditch; 4. a water playing pool; 5. a precipitation mechanism; 501. A first-stage sedimentation tank; 502. a secondary sedimentation tank; 503. a third-stage sedimentation tank; 6. an oxidation pond; 7. a drainage mechanism; 701. a mounting seat; 702. a threaded rod; 703. a valve plate; 704. a first motor; 705. a first bevel gear; 706. a second bevel gear; 8. a sludge discharge mechanism; 801. a rotating shaft; 802. a helical blade; 803. a second motor; 804. a support; 9. a drain hole; 10. a sliding groove; 11. a sludge discharge hole.
Detailed Description
Please refer to fig. 1-6, wherein fig. 1 is a schematic structural diagram of an embodiment of an egg-laying duck breeding system according to the present invention; FIG. 2 is a schematic top view of the structure of FIG. 1; FIG. 3 is a schematic cross-sectional view of the precipitation mechanism of FIG. 1; FIG. 4 is a schematic cross-sectional view of the drain mechanism of FIG. 3; FIG. 5 is a schematic top cross-sectional view of the structure of FIG. 3; fig. 6 is a schematic sectional structure view of the sludge discharge mechanism in fig. 5. Laying duck farming systems includes: a duck shed 1; the playground 2 is arranged on one side of the duck shed 1; the sewage drainage ditch 3 is arranged outside the playground 2; the water playing pool 4 is arranged on one side of the playground 2, and the water playing pool 4 is communicated with the sewage discharge ditch 3; the sedimentation mechanism 5 is arranged on one side of the water playing pool 4, the sedimentation mechanism 5 comprises a primary sedimentation tank 501, a secondary sedimentation tank 502 and a tertiary sedimentation tank 503, and the primary sedimentation tank 501 is respectively communicated with the duck shed 1 and the water playing pool 4; the oxidation pond 6 is arranged on one side of the water playing pond 4, and the oxidation pond 6 is communicated with the water playing pond 4 and the three-stage sedimentation pond 503; the three drainage mechanisms 7 are arranged in the sedimentation mechanism 5, each drainage mechanism 7 comprises a mounting seat 701, the mounting seat 701 is fixedly mounted on the sedimentation mechanism 5, a threaded rod 702 is rotatably mounted on the mounting seat 701, and a valve plate 703 is threadedly mounted on the threaded rod 702; the three sludge discharge mechanisms 8 are arranged in the sedimentation mechanism 5, each sludge discharge mechanism 8 comprises a rotating shaft 801, the rotating shafts 801 are rotatably arranged on the sedimentation mechanism 5, and the rotating shafts 801 are fixedly provided with helical blades 802; three drain holes 9, wherein the three drain holes 9 are respectively arranged on the inner walls of the first-stage sedimentation tank 501, the second-stage sedimentation tank 502 and the third-stage sedimentation tank 503; the three sliding grooves 10 are respectively formed in the inner walls of the three water drain holes 9, and the inner walls of the sliding grooves 10 are slidably connected with the corresponding valve plates 703; and the three sludge discharge holes 11 are respectively formed in the inner walls of the first-stage sedimentation tank 501, the second-stage sedimentation tank 502 and the third-stage sedimentation tank 503.
The drainage mechanism 7 further comprises a first motor 704, a first bevel gear 705 is fixedly mounted on an output shaft of the first motor 704, a second bevel gear 706 is fixedly mounted at the top end of the threaded rod 702, and the second bevel gear 706 is meshed with the first bevel gear 705.
The valve plate 703 is provided with a thread groove, and the inner wall of the thread groove is in threaded connection with the threaded rod 702.
Arrange mud mechanism 8 and still include second motor 803, second motor 803 fixed mounting is on deposiing mechanism 5, just the output shaft and the pivot 801 fixed connection of second motor 803, rotate on the pivot 801 and install support 804, the inner wall fixed connection of support 804 and mud discharging hole 11.
One side of the sedimentation mechanism 5 is provided with a first lift pump, the water inlet of the first lift pump is communicated with the water-playing pool 4, and the water outlet of the first lift pump is communicated with the one-level sedimentation pool 501.
And a second water pump is arranged on one side of the water playing pool 4, the water inlet of the second water pump is communicated with the oxidation pool 6, and the water outlet of the second water pump is communicated with the water playing pool 4.
A drinking trough is arranged in the duck shed 1 and communicated with the primary sedimentation tank 501.
Straw is laid in the duck shed 1, and rain shelters are arranged above the playground 2 and the water playing pool 4.
The playground 2 is made of concrete.
The working principle of the laying duck breeding system provided by the invention is as follows:
when the device is used, the duck shed 1 and the playground 2 can be washed regularly, water for washing the duck shed 1 can enter the first-stage sedimentation tank 501 for sedimentation, and water for washing the playground 2 can enter the playground tank 4 through the sewage discharge ditch 3, so that the environmental sanitation can be ensured; in order to ensure the health of laying ducks, the water in the water playing pool 4 needs to be replaced periodically, when the water is replaced, the water in the water playing pool 4 is pumped into the first-stage sedimentation tank 501 through the first lifting pump, then sequentially precipitated through the second-stage sedimentation tank 502 and the third-stage sedimentation tank 503 and enters the oxidation tank 6 for oxidation, and after the oxidation is completed, the water is pumped back into the water playing pool 4 through the second lifting pump for reuse, so that the water resource can be saved; the residual water in the first-stage sedimentation tank 501 and the second-stage sedimentation tank 502 can be used for agricultural irrigation, and sediments can be composted by regularly cleaning and collecting;
after precipitation, the first motor 704 can be started, the first motor 704 drives the first bevel gear 705 to rotate, the first bevel gear 705 drives the second bevel gear 706 to rotate, the second bevel gear 706 drives the threaded rod 702 to rotate, and the threaded rod 702 drives the valve plate 703 to move downwards, so that supernatant can be separated from precipitate;
when the sediment is cleaned, the second motor 803 is started, the second motor 803 drives the rotating shaft 801 to rotate, the rotating shaft 801 drives the helical blade 802 to rotate, the sediment can be discharged through the sludge discharge hole 11, and the device is simple to operate, time-saving and labor-saving.
Compared with the related art, the laying duck breeding system provided by the invention has the following beneficial effects:
the invention provides an egg laying duck breeding system, wherein a playground 2 is arranged at one side of a duck shed 1, a sewage discharge ditch 3 is arranged outside the playground 2, a paddling pool 4 is arranged at one side of the playground 2, and the paddling pool 4 is communicated with the sewage discharge ditch 3, so that the physiological requirements of egg laying ducks in production can be effectively met; deposit mechanism 5 and establish one side of playing in water pond 4, it includes one-level sedimentation tank 501, second grade sedimentation tank 502 and tertiary sedimentation tank 503 to deposit mechanism 5, just one-level sedimentation tank 501 play in water pond 4 and be linked together, it is three drainage mechanism 7 establishes in depositing mechanism 5, drainage mechanism 7 includes mount pad 701, mount pad 701 fixed mounting is in deposit mechanism 5 is last, rotate on the mount pad 701 and install threaded rod 702, threaded rod 702 goes up the screw thread and installs valve plate 703, it is three arrange mud mechanism 8 and establish in depositing mechanism 5, arrange mud mechanism 8 and include pivot 801, pivot 801 rotates and installs deposit mechanism 5 is last, fixed mounting has helical blade 802 in the pivot 801, can utilize water resource circulation, and is energy-concerving and environment-protective, and makes things convenient for excrement resource recycle.
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.
Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An egg-laying duck breeding system, comprising:
a duck shed;
the playground is arranged on one side of the duck shed;
the sewage discharge ditch is arranged outside the motion field;
the water playing pool is arranged on one side of the playground and communicated with the sewage discharge ditch;
the sedimentation mechanism is arranged on one side of the water playing pool and comprises a primary sedimentation tank, a secondary sedimentation tank and a tertiary sedimentation tank, and the primary sedimentation tank is respectively communicated with the duck shed and the water playing pool;
the oxidation pond is arranged on one side of the paddling pond, and is communicated with the paddling pond and the three-stage sedimentation pond;
the three drainage mechanisms are arranged in the sedimentation mechanism and comprise mounting seats, the mounting seats are fixedly mounted on the sedimentation mechanism, threaded rods are rotatably mounted on the mounting seats, and valve plates are mounted on the threaded rods in a threaded manner;
the three sludge discharge mechanisms are arranged in the sedimentation mechanism and comprise rotating shafts, the rotating shafts are rotatably arranged on the sedimentation mechanism, and spiral blades are fixedly arranged on the rotating shafts;
the three drain holes are respectively formed in the inner walls of the first-stage sedimentation tank, the second-stage sedimentation tank and the third-stage sedimentation tank;
the three sliding grooves are respectively formed in the inner walls of the three drain holes, and the inner walls of the sliding grooves are in sliding connection with the corresponding valve plates;
and the three sludge discharge holes are respectively formed in the inner walls of the first-stage sedimentation tank, the second-stage sedimentation tank and the third-stage sedimentation tank.
2. The laying duck breeding system according to claim 1, wherein the drainage mechanism 7 further comprises a first motor, a first bevel gear is fixedly mounted on an output shaft of the first motor, a second bevel gear is fixedly mounted at the top end of the threaded rod, and the second bevel gear is meshed with the first bevel gear.
3. The laying duck breeding system according to claim 2, wherein the valve plate is provided with a threaded groove, and the inner wall of the threaded groove is in threaded connection with the threaded rod.
4. The laying duck breeding system according to claim 1, wherein the mud discharging mechanism further comprises a second motor, the second motor is fixedly mounted on the sedimentation mechanism, an output shaft of the second motor is fixedly connected with a rotating shaft, a support is rotatably mounted on the rotating shaft, and the support is fixedly connected with the inner wall of the mud discharging hole.
5. The laying duck breeding system according to claim 1, wherein a first lift pump is arranged on one side of the settling mechanism, a water inlet of the first lift pump is communicated with the water playing pool, and a water outlet of the first lift pump is communicated with the primary settling pool.
6. The laying duck breeding system according to claim 1, wherein a second water pump is arranged on one side of the paddling pool, a water inlet of the second water pump is communicated with the oxidation pool, and a water outlet of the second water pump is communicated with the paddling pool.
7. The laying duck breeding system of claim 1, wherein a drinking trough is provided in the duck shed, and the drinking trough is communicated with the primary sedimentation tank.
8. The laying duck breeding system according to claim 1, wherein straw is laid in the duck shed, and rain shelters are arranged above the playground and the water playing pool.
9. The laying duck farming system of claim 1, wherein the playground is made of concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010853431.8A CN112385573A (en) | 2020-08-23 | 2020-08-23 | Laying duck farming systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010853431.8A CN112385573A (en) | 2020-08-23 | 2020-08-23 | Laying duck farming systems |
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| Publication Number | Publication Date |
|---|---|
| CN112385573A true CN112385573A (en) | 2021-02-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010853431.8A Pending CN112385573A (en) | 2020-08-23 | 2020-08-23 | Laying duck farming systems |
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Application publication date: 20210223 |