CN108782371B - Medicine sustained-release device - Google Patents
Medicine sustained-release device Download PDFInfo
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- CN108782371B CN108782371B CN201810603060.0A CN201810603060A CN108782371B CN 108782371 B CN108782371 B CN 108782371B CN 201810603060 A CN201810603060 A CN 201810603060A CN 108782371 B CN108782371 B CN 108782371B
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- 239000003814 drug Substances 0.000 title claims abstract description 82
- 229940079593 drug Drugs 0.000 title claims abstract description 47
- 238000013268 sustained release Methods 0.000 title claims abstract description 20
- 239000012730 sustained-release form Substances 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 239000000839 emulsion Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 230000008602 contraction Effects 0.000 claims description 15
- 238000012377 drug delivery Methods 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 241001465754 Metazoa Species 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 240000009087 Crescentia cujete Species 0.000 description 1
- 235000005983 Crescentia cujete Nutrition 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 235000009797 Lagenaria vulgaris Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002699 waste material Substances 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
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/13—Prevention or treatment of fish diseases
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Medicinal Preparation (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a drug slow-release device, which comprises a closed main body container, wherein a liquid inlet and a plurality of liquid outlets with emulsion bulges are arranged on the main body container. Through the mode, the drug slow-release device is simple in structure, convenient to operate, capable of being used for a long time, economic and environment-friendly; the drug sustained release device can control the release of the drug, prolong the release time, stabilize the release of the drug, prolong the action time, reduce the dosage of the drug and improve the use efficiency of the drug.
Description
Technical Field
The invention relates to the technical field of water body culture auxiliary devices, in particular to a drug slow-release device.
Background
In large water body cage culture, because the culture water body is overlarge, operations such as medicine disinfection, insect killing and the like are difficult to carry out on cultured animals. If the traditional disinfection method is adopted, the drugs in the aquaculture water body reach the effective concentration and are maintained for a period of time by splashing, and a large amount of drugs need to be put into the aquaculture water body to be dissolved, so that the traditional disinfection method is uneconomical, not environment-friendly and causes a large amount of waste and pollution. Therefore, part of farmers can adopt a bottle hanging or bag hanging mode to disinfect, namely, medicines are filled in mineral water bottles or cloth bags and hung in a net box to disinfect, but the mode has obvious defects, such as simple and crude manufacture, no special equipment, unstable medicine release, faster diffusion, short medicine action time, poor insecticidal and disinfection effects, large medicine usage amount and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a drug sustained-release device which has simple structure, convenient operation, long-acting use, economy and environmental protection; the drug sustained release device can control the release of the drug, prolong the release time, stabilize the release of the drug, prolong the action time, reduce the dosage of the drug and improve the use efficiency of the drug.
The technical scheme adopted by the invention is as follows: a drug sustained-release device comprises a closed main container, wherein a liquid inlet and a plurality of liquid outlets with emulsion bulges are arranged on the main container.
According to a specific embodiment of the present invention, the main container is provided with a contracting portion which is recessed toward the interior of the main container, and the liquid inlet is provided on the contracting portion.
According to an embodiment of the present invention, the main body container is a gourd-shaped main body container having the constricted portion at a middle portion thereof.
According to a specific embodiment of the invention, the gourd-shaped body container comprises a first container part and a second container part for containing the medicine, wherein the first container part and the second container part are fixedly connected; the liquid outlet is arranged on the second container part, and the gravity center of the drug slow-release device is positioned in the second container part.
According to a specific embodiment of the present invention, the container further comprises a hollow flow guiding component, one end of the hollow flow guiding component is connected to the liquid inlet, and the other end of the hollow flow guiding component is communicated with the inside of the second container component.
According to a specific embodiment of the present invention, the hollow flow guiding member is a necking hollow flow guiding member, and an opening of the hollow flow guiding member connected to the liquid inlet end is larger than an opening of the hollow flow guiding member at the other end.
According to a specific embodiment of the invention, the second container part is provided with a weighting member.
According to a specific embodiment of the present invention, the first container part is provided with an auxiliary control structure for assisting in pulling and controlling the drug slow-release device.
According to an embodiment of the present invention, the auxiliary control structure is a rope hole communicating with the inside of the first container member, and the rope hole is provided at an end of the first container member far from the second container member.
According to an embodiment of the present invention, the main container is made of a flexible material.
The beneficial technical effects of the invention are as follows: the invention provides a drug sustained-release device which comprises a closed main body container, wherein a liquid inlet and a plurality of liquid outlets with emulsion bulges are arranged on the main body container. Through the mode, the liquid outlet is of an opening structure with the milky bulge, the inner opening is large, the outer opening is small, the speed of releasing the medicine to the external water body under the diffusion action can be reduced along with the gradual reduction of the bulge, the action time of the medicine is prolonged, and the medicine is released stably, so that the local water body can keep higher effective concentration of the medicine for a longer time, the use efficiency of the medicine is improved, and the dosage of the medicine is reduced; and the device has simple integral structure, convenient operation, economy and environmental protection.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic structural view of an embodiment of a drug delivery device according to the present invention;
fig. 2 is a schematic structural view of another embodiment of the drug delivery device of the present invention.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprising" and "having," and any variations thereof, as used herein, are intended to cover non-exclusive inclusions, since the description of the invention as applied to the above figures is merely relative to the positional relationship of the various elements of the invention with respect to one another in the figures.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by a person skilled in the art that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a drug sustained-release device according to the present invention. As shown in fig. 1, the sustained-release device for drugs in this embodiment includes a closed main container 10, a constriction portion 11 recessed into the main container 10 and a plurality of liquid outlets 12 protruding from the main container 10 are provided on the main container 10, a liquid inlet 13 is provided on the constriction portion 11, and the opening of the liquid inlet 13 is generally larger than the opening of the liquid outlets 12.
Specifically, in this embodiment, the main body container 10 is a gourd-shaped main body container having a constricted portion 11 in the middle, and specifically includes a first container part 101 and a second container part 102 for containing medicine, the first container part 101 and the second container part 102 are fixedly connected, and a liquid inlet 13 is provided on the constricted portion 11; the second container part 102 is provided with a plurality of liquid outlets 12 with milk-like bulges, and the center of gravity of the drug slow-release device is positioned in the second container part 102. The first container part 101 and the second container part 102 may be spherical or ellipsoidal in shape.
By arranging the liquid inlet 13 on the contraction part 11 of the gourd-shaped main body container, the contraction part 11 gradually contracts along with the recession towards the inside of the main body container 10, when water flow or fishes swim to form water flow outside the main body container 10, the contraction part 11 can play a role of drainage and water collection similar to a funnel, and the water outside the main body container 10 can flow into the container to dissolve medicines; the liquid outlet 12 is of an opening structure which is milky and convex, the inner opening is large, the outer opening is small, the speed of releasing the medicine to the external water body through diffusion can be reduced along with the gradual reduction of the convex, the time of the medicine action is prolonged, the medicine release is stable, the use efficiency of the medicine is improved, and the dosage of the medicine is reduced. In addition, the above arrangement ensures that the liquid flows in from the liquid inlet 13 and flows out from the liquid outlet 12 in the general direction.
Of course, in other embodiments, the liquid inlet 13 may be directly disposed on the main container without the constriction 11, and the position and the opening size of the liquid inlet may be set appropriately to ensure that the liquid flows in from the liquid inlet 13 and flows out from the liquid outlet 12. In general, the liquid outlet 12 is disposed at an end of the main container 10 where the center of gravity is located, and the liquid inlet 13 is disposed at a position higher than the liquid outlet 12. In addition, in general, the opening of the liquid inlet 13 is larger than the opening of the liquid outlet 12.
In a specific use of the drug delivery device of this embodiment, a drug or nutrient is placed in the second container member 102 of the drug delivery device, then the medicine slow-release device is put into the water body to be applied with the medicine or the nourishment, when water flows, by the water collecting function of the contraction part 11, water flows into the main body container 10 from the liquid inlet 13 on the contraction part 11, since the centre of gravity of the drug delivery device is located within the second container part 102, normally with the second container part 102 facing downwards, the water flowing in through the liquid inlet 13 mainly flows into the second container part 102 to dissolve the medicine or the nutrient contained therein, and after the medicine or the nutrient is dissolved, concentration difference exists between the inside and the outside of the device, the concentration of the solution in the device is higher than that of the solution outside the device, and the medicine or the nutrient dissolved in the device can be released into the external water body through the liquid outlet 12 by diffusion so as to act on the water body. In the specific application process, the medicine slow-release devices can be arranged at multiple points according to actual requirements, so that the long-time effective medicine concentration of each local water body is formed, and the overall using effect is improved.
In order to facilitate the holding and refilling of the device, in this embodiment, the first container part 101 and the second container part 102 are preferably detachably fixed, in particular by a screw thread or the like. In yet another embodiment, the main body container 10 may be designed as a gourd-shaped main body container which is integrally formed.
In addition, the drug delivery device preferably further comprises a hollow flow-guiding member 14, one end of the hollow flow-guiding member 14 being connected to the inlet 13 and the other end being open to the interior of the main container 10, typically to the drug-containing region. In this embodiment, the hollow flow guide member 14 has one end connected to the inlet 13 and the other end opening into the second container member 102. The hollow flow guiding component 14 may be a flexible conduit, and may be a hollow circular tube or a hollow square tube. Through the arrangement of the hollow diversion part 14, water flowing in from the liquid inlet 13 can be directly drained into the second container part 102 to contain the medicine contained therein, so that the overall controllability of the device is improved.
Further, the hollow flow guiding component 14 is preferably a necking hollow flow guiding component, and an opening of one end of the hollow flow guiding component 14, which is connected with the liquid inlet 13, is larger than an opening of the other end. If the hollow flow guiding component 14 is a hollow circular tube, the diameter of the hollow circular tube decreases gradually from the tube opening connected with one end of the liquid inlet to the other end. By the above manner, on one hand, the water flow rate flowing into the main container 10 can be reduced, and the drug release is prevented from being too fast; on the other hand, the release of the inner drug through the hollow flow guiding member 14 to the outside of the device may be reduced.
In order to facilitate the device sinking into the water body and ensure the stability of the device in the water body when the device is put into use, the drug sustained-release device preferably further comprises a weighting component 15, and the weighting component 15 is usually disposed at a position deviated to one side of the main container 10 where the liquid outlet 12 is disposed. In this embodiment, the weight-increasing part 15 is disposed on the end of the second container part 102 far from the first container part 101 in the drug sustained-release device, so as to ensure that the drug can be kept in the second container part 102 when the device is thrown in a water body, and then released to the outside through the liquid outlet 12, thereby maintaining the stability of drug release.
In addition, in order to facilitate the retraction control of the device, the drug sustained-release device can be provided with an auxiliary control structure for assisting the traction control of the drug sustained-release device. In the present embodiment, the auxiliary control structure is a rope threading hole 16 communicating with the inside of the first container part 101, and the rope threading hole 16 is provided at an end of the first container part 101 far from the second container part 102. In the using process, a user can connect the rope through the rope to the rope through hole through the rope. The arrangement of the rope-threading hole 16 on the end of the first container part 101 far from the second container part 102, that is, the top of the gourd-shaped main body container, can facilitate the device to keep the second container part 102 containing the medicine in the water body facing downwards, and maintain the stable release of the medicine; the stringing hole 16 is communicated with the inside of the main container 10, and when the device is filled with the medicine and is put into water and sinks under the water body, the stringing hole 16 is communicated with the inner space of the main container 10, so that the gas in the main container 10 is discharged, and the water flows into the device through the liquid inlet 13 on the device to dissolve the medicine. Of course, in other embodiments, the auxiliary control structure may be configured as another structure, such as a hook ring structure for binding the rope, or the pulling rope may be directly bound to the contraction portion 11 of the gourd-shaped main body container.
From the above, in the embodiment, the main body container 10 is a gourd-shaped main body container having the constriction 11 at the middle, and the constriction 11 is provided with the liquid inlet 13, so that water can be guided to flow into the main body container 10 through the liquid inlet 13 by the water collecting function of the constriction 11. It is understood that the main container 10 with other shapes may be provided with the contraction part 11 depressed toward the inside of the main container 10, and the liquid inlet 13 is provided on the contraction part 11, so as to collect water by the contraction part 11 and guide the water to flow into the main container 10 through the liquid inlet 13.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of a drug sustained-release device according to the present invention. As shown in fig. 2, the drug sustained-release device of the embodiment includes a main container 20 in a substantially spherical shape, which is made of a flexible material and specifically includes a first container part 201 and a second container part 202 for containing the drug, and the first container part 201 and the second container part 202 are detachably and fixedly connected. Two constrictions 21 are symmetrically provided on the first container member 201 along the central axis of the main container 20, and the constrictions 21 are provided with liquid inlets 23. A plurality of emulsion-raised outlets 22 are provided in the second container part 202. A hollow flow guide member 24 leading to the interior of the second container member 202 is connected to the liquid inlet 23.
The end of the second container part 202 away from the first container part 201 is provided with a weighting part 25 to ensure that the overall center of gravity of the drug sustained-release device is located in the second container part 202, so that when the device is thrown in a water body, the second container part 202 faces downwards, and the stability of drug release is ensured. In addition, an auxiliary control structure 26 is arranged at the end of the first container part 201 away from the second container part 202, and the auxiliary control structure 26 is a rope threading hole used for an auxiliary device to pull and control the retraction of the drug sustained-release device.
This embodiment medicine sustained-release devices material is soft, the outward appearance is mellow, small and exquisite nimble, can not cause mechanical damage to breed the animal in the water, utilize the diffusion effect to pass through milky bellied liquid outlet 22, can make the release of medicine controllable, the extension release time, through a plurality of this embodiment medicine sustained-release devices of rationally arranging in water space, can make local water form long-time effectual drug concentration, improve the effective effect of medicine to breeding the animal, reduce the use amount of medicine, improve the availability factor of medicine.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A drug sustained-release device for water body culture is characterized by comprising a closed main body container, wherein a liquid inlet and a plurality of liquid outlets are arranged on the main body container; the liquid outlet is of an opening structure with an emulsion bulge, the inner opening is large, and the outer opening is small; the opening of the liquid inlet is larger than that of the liquid outlet; the main container is provided with a contraction part which is sunken towards the inside of the main container, and the liquid inlet is arranged on the contraction part; the main body container is a gourd-shaped main body container with the middle part provided with the contraction part, and the contraction part is positioned at the contraction part of the gourd-shaped main body container; the number of the liquid inlets is at least two, and the liquid inlets are uniformly distributed along the circumferential direction of the contraction part;
still include cavity water conservancy diversion part, the one end of cavity water conservancy diversion part is connected the inlet, the other end accesss to the inside of main part container, cavity water conservancy diversion part is throat type cavity water conservancy diversion part, just connect on the cavity water conservancy diversion part the opening of inlet port end is greater than the opening of the other end.
2. A drug delivery device according to claim 1, wherein the gourd-shaped body container comprises a first container part and a second container part for holding a drug, the first container part and the second container part being fixedly connected; the liquid outlet is arranged on the second container part, and the gravity center of the drug slow-release device is positioned in the second container part.
3. A drug delivery device as claimed in claim 2, wherein the hollow flow directing member has one end connected to the inlet port and the other end opening into the interior of the second container part.
4. A drug delivery device according to claim 2, wherein the second container part is provided with a weighting member.
5. A drug delivery device according to claim 2, wherein the first container part is provided with auxiliary control structure for assisting in traction control of the drug delivery device.
6. A drug delivery device as claimed in claim 5, wherein the secondary control structure is a tether aperture in communication with the interior of the first container part, the tether aperture being provided at an end of the first container part remote from the second container part.
7. A drug delivery device according to any of claims 1 to 6, wherein the main reservoir is made of a flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603060.0A CN108782371B (en) | 2018-06-12 | 2018-06-12 | Medicine sustained-release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603060.0A CN108782371B (en) | 2018-06-12 | 2018-06-12 | Medicine sustained-release device |
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| Publication Number | Publication Date |
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| CN108782371A CN108782371A (en) | 2018-11-13 |
| CN108782371B true CN108782371B (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810603060.0A Active CN108782371B (en) | 2018-06-12 | 2018-06-12 | Medicine sustained-release device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645441Y (en) * | 2003-10-13 | 2004-10-06 | 庞永中 | Depositing cartridge for aquiculture medicine |
| CN201523600U (en) * | 2009-10-30 | 2010-07-14 | 董庆华 | Aquaculture pesticides and fertilizers application device |
| CN102415349A (en) * | 2011-09-27 | 2012-04-18 | 福建师范大学 | Medicine sustained-release cage special for aquaculture |
| CN203781878U (en) * | 2014-02-21 | 2014-08-20 | 上海万森水处理有限公司 | Drug slow release device |
| CN204079522U (en) * | 2014-03-28 | 2015-01-07 | 上海市园林设计院有限公司 | A kind of kit for the treatment of landscape water |
| CN205511154U (en) * | 2016-04-27 | 2016-08-31 | 楼玲彩 | Flowerpot |
| KR20170041398A (en) * | 2015-10-07 | 2017-04-17 | 이상철 | Apparatus for watering and apparatus for measuring the water content |
| CN107496347A (en) * | 2017-09-04 | 2017-12-22 | 四川和济健康管理有限公司 | With the double-layer sustained release structure for extending Chinese medicine release time |
| CN206879678U (en) * | 2017-06-13 | 2018-01-16 | 刘彤 | Watering basin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7347934B2 (en) * | 2004-08-26 | 2008-03-25 | King Technology, Inc | Biocide |
-
2018
- 2018-06-12 CN CN201810603060.0A patent/CN108782371B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645441Y (en) * | 2003-10-13 | 2004-10-06 | 庞永中 | Depositing cartridge for aquiculture medicine |
| CN201523600U (en) * | 2009-10-30 | 2010-07-14 | 董庆华 | Aquaculture pesticides and fertilizers application device |
| CN102415349A (en) * | 2011-09-27 | 2012-04-18 | 福建师范大学 | Medicine sustained-release cage special for aquaculture |
| CN203781878U (en) * | 2014-02-21 | 2014-08-20 | 上海万森水处理有限公司 | Drug slow release device |
| CN204079522U (en) * | 2014-03-28 | 2015-01-07 | 上海市园林设计院有限公司 | A kind of kit for the treatment of landscape water |
| KR20170041398A (en) * | 2015-10-07 | 2017-04-17 | 이상철 | Apparatus for watering and apparatus for measuring the water content |
| CN205511154U (en) * | 2016-04-27 | 2016-08-31 | 楼玲彩 | Flowerpot |
| CN206879678U (en) * | 2017-06-13 | 2018-01-16 | 刘彤 | Watering basin |
| CN107496347A (en) * | 2017-09-04 | 2017-12-22 | 四川和济健康管理有限公司 | With the double-layer sustained release structure for extending Chinese medicine release time |
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| CN108782371A (en) | 2018-11-13 |
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Address after: 518054 Haiwang Building 10E, Nanhai Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Aohua Group Co.,Ltd. Address before: 518054 a-10e, Haiwang building, Nanhai Avenue, Nanshan District, Shenzhen, Guangdong Patentee before: SHENZHEN ALPHA FEED AGRICULTURAL AND PASTORAL CO.,LTD. |