CN201393474Y - Parent circulating water cultivation device of blue crab - Google Patents
Parent circulating water cultivation device of blue crab Download PDFInfo
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- CN201393474Y CN201393474Y CN200920071019XU CN200920071019U CN201393474Y CN 201393474 Y CN201393474 Y CN 201393474Y CN 200920071019X U CN200920071019X U CN 200920071019XU CN 200920071019 U CN200920071019 U CN 200920071019U CN 201393474 Y CN201393474 Y CN 201393474Y
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Abstract
The utility model provides a parent circulating water cultivation device of a blue crab, which comprises a water treatment tank and a parent cultivation tank, matching with an air inflation pump at the same time. The water treatment tank is divided into a material filtering zone and a water collecting zone; filtering materials in the filtering zone comprise active carbon, coral stones and ceramicrings; a filtering cotton used for removing large granular substances is arranged at the top part of the material filtering zone, the water collecting zone is provided with a heating rod and a water pump, and a cultivation water body after being processed by the filtering materials can keep good water quality. A water inlet pipe and an overflow pipe are arranged on a tank body of the parent cultivation tank. A bottom filtering device and quartz sands are arranged in the cultivation tank. The bottom filtering device can promote the water body in the quartz sands at the bottom part to flow, andincrease dissolved oxygen at the bottom part of the cultivation tank, so as to improve the water environment at the bottom part of the cultivation tank; the quartz sands not only can be used for a pregnant crab to hide, but also can exert the function of physical and biological filtering. Being simple and practical with low cost, the cultivation device can improve the parent survival rate and embryo hatching rate.
Description
Technical field
The utility model relates to a kind of Portunus trituberculatus Miers parent circulating water cultivation device, belongs to seawater seed rearing equipment and water-treatment technology field.
Background technology
Portunus trituberculatus Miers (Potunus tri tuberculatus) is the important seawater economic crab of China, and it is coastal to be distributed widely in China, is that important seawater is fished for object and breed variety.Since the eighties in 20th century, owing to reasons such as overfishing and coastal ocean environmental deteriorations, the natural resources amount of China's Portunus trituberculatus Miers sharply descends, therefore, the artificial breeding of Portunus trituberculatus Miers and pond culture develop rapidly in that China is coastal since the nineties in 20 century, China's Portunus trituberculatus Miers cultured output had reached about 100,000 tons in 2007, and these seeds are mainly derived from artificial breeding.
In the actual production of growing seedlings, survival rate in the parent crab cultivating process is on the low side, and embryonic hatching is also unstable, a major reason that causes this situation is to supply ovigerous crab to hide with hidden owing to placing some quartz sands or yellow sand in bottom, cultivation pond usually in the parent culture process, adopt traditional way to inflate and change water, cause the bottom sand bed black smelly easily, thereby cause ovigerous crab and fetal infection germ, thereby influence ovigerous crab survival rate and embryonic hatching.In addition, adopt traditional hydrostatic to cultivate the method for parent crab, need change water (30-60%) every day in a large number, could guarantee that water body ammonia nitrogen and nitrite are no more than fishery water quality set quota, but a large amount of like this water that change gear, not only cause environmental pollution, and easily cause parent's stress reaction, influence parent survival rate and embryonic hatching.
In view of above reason, this seminar is on the basis of carrying out Portunus trituberculatus Miers artificial propagation research for many years, by adopting end filter and circulating water treatment technology, invented a kind of parent crab cultivator, better solved the problem that bottom sand bed blackout is smelly, water quality worsens easily, this device not only can improve the survival rate and the embryonic hatching of ovigerous crab, and can save production cost.
The utility model content
The utility model is exactly in order to address the above problem, having alleviated the method that adopts traditional hydrostatic to cultivate the parent crab carries out changing water in a large number, the bottom sand bed is black easily smelly, causes ovigerous crab and fetal infection germ, the problem that ovigerous crab survival rate and embryonic hatching are low; Overcome the water (30-60%) that changes gear in a large number every day, easily caused parent's stress reaction, influenced the shortcoming of parent survival rate and embryonic hatching; And solved the water (30-60%) that changes gear in a large number every day, cause environmental pollution problems.The utility model provides a kind of Portunus trituberculatus Miers parent circulating water cultivation device, uses this device to cultivate the Portunus trituberculatus Miers parent, does not need to change water and can keep good water quality, and incubator box bottom sand bed can smellyly not turn black ovigerous crab survival rate height, embryonic hatching height.This utility model is applicable to the production of growing seedlings of Portunus trituberculatus Miers, also is applicable to the production of growing seedlings of other crab classes.
The technical problem of the required solution of the utility model can be achieved through the following technical solutions:
A kind of Portunus trituberculatus Miers parent circulating water cultivation device comprises breeding box and inflator pump, and inflator pump is connected with breeding box by gas tube, and quartz sand is set in the breeding box, it is characterized in that,
Described breeding box is provided with one and prevents breeding box bottom quartz sand anoxic and the end filter device of improveing breeding box bottom water environment, on the end filter device quartz sand is set; Filter device of the described end comprises an end filter plate and an air-floating apparatus;
Described breeding box connects a water treatment case by overflow pipe, and water treatment case is divided into filtrate district and gathering ground, and described water treatment case is connected with breeding box by water inlet pipe.
Described water treatment case and breeding box be length be 75 centimetres, wide be that 56 centimetres, height are 47 centimetres polyethylene aquarium.
Described breed casing is provided with the inlet opening that is connected with water inlet pipe, and the spout hole that is connected with overflow pipe; Described spout hole is apart from culturing 10 centimetres at casing top, 5 centimetres at concrete casing top, described inlet opening.Described water inlet pipe and overflow pipe employing diameter are 1.7 centimetres nontoxic pvc pipe.
Described air-floating apparatus comprises air supporting pipe 22 and gas charging stone 5, can prevent breeding box bottom quartz sand anoxic by end filter plate and air-floating apparatus, improvement breeding box bottom water environment.
Gas charging stone and gas tube are arranged in the air supporting pipe, can avoid Portunus trituberculatus Miers parent's big chela to press from both sides bad gas charging stone, perhaps the pinch off gas tube.
Described air supporting pipe comprises outer tube and interior pipe, and outer tube is the lucite pipe of 2 centimetres of diameters, and pipe in the outer tube interpolation, interior Guan Weiyi root diameter are the lucite pipe that 1.9 cm heights can free lifting.Gas charging stone and gas tube are placed on the interior pipe inside of air supporting pipe.
Described gas tube is that diameter is 0.5 centimetre.
Described gas charging stone (also being called Bubbled stone) is 1.7 centimetres for diameter, highly is 2 centimetres.
Also being provided for the Portunus trituberculatus Miers parent on the end filter device hides and hidden things concealed; Described things concealed is the nontoxic pvc pipe of about 16 centimetres of diameters, and length is 20 centimetres.
Separate with PVC dividing plate with holes in the middle of described filtrate district and the gathering ground;
Described filtrate is divided into three-layer filter, be followed successively by the activated carbon, corallite and the ceramic ring filtrate that are used for physical filtering from right to left, different filter material layers also separate with the PVC dividing plate, and it is 0.5 centimetre hole that these PVC dividing plates are provided with diameter, is convenient to water and flow into the gathering ground from the filtrate district; Described PVC block board thickness is 4 millimeters.
Be attached with the biomembrane that nitrosoation and nitrifying bacteria etc. are formed on the three-layer filter in described filtrate district.
Described activated carbon particle diameter is 2.5 millimeters, and specific surface area is greater than 850m
2/ g.
Described corallite length is 4-8 centimetre.
Described ceramic ring diameter is 2.5 centimetres, and length is 2.2 centimetres.
The junction of described filtrate district and overflow pipe is provided with one and is used to remove bigger particulate matter and gets filter cotton, and described gathering ground is provided with water pump, and described water pump is connected with water inlet pipe; Can keep good water quality by the breeding water body after the filtrate processing, carry back breeding box, avoid changing in a large number water, keep the good physiological status of Portunus trituberculatus Miers parent by water inlet pipe;
Described gathering ground is provided with heating rod;
Described inflator pump is that power is 180 watts.
Described heating rod power is 200-500 watt.
Described pump power is 35-70 watt, and lift is about 2 meters.
Described quartz sand is the 20-40 order.Quartz sand both can be hidden for ovigerous crab, can play the effect of physical filtering and biofiltration again.
The beneficial effects of the utility model:
1, adopts the Portunus trituberculatus Miers parent cultivator of technique scheme, do not need to change water in whole parent's feeding process, can save great lot of water resources, reduce the pollution of breeding water body environment.
2, filter technology in this device employing end can guarantee the sufficient dissolved oxygen in the quartz sand of parent's breeding box bottom, not only can carry out water body oxygenation by the air supporting method, can either satisfy ovigerous crab breed needs bed-sit hides and hidden demand for ovigerous crab, and can promote the water body circulation of breeding box bottom, prevent that bottom environment from worsening, cause parent and embryo unexpected death, reduce the risk of growing seedlings, improve the stability and the economic benefit of growing seedlings.
3, this parent's cultivator is simple in structure, and does not need to change water, and is easy to operate, is suitable for general production and R﹠D institution's use.
4, each breeding box of the present utility model is raised a Portunus trituberculatus Miers parent, can prevent disease propagation and mutual interference mutually that colony's breed brings, help parent's management, thereby improve parent survival rate and embryonic hatching, use the parent survival rate of this cultivator and embryonic hatching can reach 90% usually.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
The structural representation of Fig. 2 water treatment case;
Enlarged drawing is overlooked in filtrate district in Fig. 3 water treatment case;
The structural representation of Fig. 4 breeding box;
The partial enlarged drawing of end filter device in Fig. 5 breeding box.
Among the figure as seen: water treatment case 1, breeding box 2, inflator pump 3, water pump 4, gas charging stone (also claiming Bubbled stone) 5, gas tube 6, water inlet pipe 7, overflow pipe 8, end filter device 9, filtrate district 10, gathering ground 11, heating rod 12, filter cotton 13, PVC dividing plate 14, activated carbon 15, corallite 16, ceramic ring 17, inlet opening 18, spout hole 19, quartz sand 20, things concealed (pvc pipe) 21, air supporting pipe 22, wave plate 23.
Embodiment
In order to make technological means of the present utility model, creation characteristic, to reach purpose and effect is easy to understand,, further set forth the utility model below in conjunction with concrete diagram.
Portunus trituberculatus Miers parent circulating water cultivation device shown in Fig. 1,2,4, is made up of a water treatment case 1 and two breeding box 2, and breeding box 2 connects water treatment case 1 by overflow pipe 8, and water treatment case 1 is connected with breeding box 2 by water inlet pipe 7.The casing specification of water treatment case 1 and breeding box 2 is long 75 centimetres, wide 56 centimetres, high 47 centimetres polyethylene aquarium.
Water treatment case 1 is divided into filtrate district 10 and gathering ground 11.
Air-floating apparatus comprises air supporting pipe 22 and gas charging stone 5, is placed in the breeding box, can prevent breeding box bottom quartz sand anoxic by end filter plate and air-floating apparatus, improvement breeding box bottom water environment.
The interior pipe inside of air supporting pipe 22 is provided with gas tube 6 and gas charging stone 5.
Gas charging stone (also being called Bubbled stone) 5 is 1.7 centimetres for diameter, highly is 2 centimetres.
Also being provided for the Portunus trituberculatus Miers parent on the end filter device 9 hides and hidden things concealed 21; Things concealed 21 is vertically cut open for the nontoxic pvc pipe of about 16 centimetres of diameters, and length is 20 centimetres.
As shown in Figure 3 and Figure 4, water treatment case 1 comprises filtrate district 10 and gathering ground 11.
Separate with PVC dividing plate 14 with holes in the middle of filtrate district 10 and the gathering ground 11; PVC dividing plate 14 thickness are 4 millimeters.
The junction of filtrate district 10 and overflow pipe 8 is provided with a filter cotton 13 that is used to remove bigger particulate matter.
Filtrate district 10 is divided into three floor, is followed successively by activated carbon 15, corallite 16 and ceramic ring 17 from right to left, and different filter material layers are that 4 millimeters PVC dividing plate separates with thickness also.Activated carbon 15 particle diameters are 2.5 millimeters, and specific surface area is greater than 850m
2/ g.Corallite 16 length are 4-8 centimetre.Ceramic ring 17 diameters are 2.5 centimetres, and length is 2.2 centimetres.
Be attached with the biomembrane that nitrosoation and nitrifying bacteria etc. are formed on the three-layer filter.
Filtrate district 10 adopts activated carbon 15, corallite 16, ceramic ring 17, and the biomembrane that adheres on these filtrates is used to purify water, and ammonia nitrogen is transformed nontoxic nitrate.
As shown in Figure 3, gathering ground 11 need be furnished with gas charging stone 5, water pump 4 and heating rod 12, guarantees the sufficient and suitable water temperature of dissolved oxygen.
Gathering ground 11 also is provided with heating rod 12, and heating rod 12 power are 200-500 watt.
12 pairs of breeding water bodies of heating rod are heated, and water temperature is controlled at about the 18-24 degree;
Inflator pump 3 is connected with gas tube 6, delivers gas to breeding box 2, and inflator pump 3 can adopt 180 watts small-sized whirlpool air pump.
As shown in Figure 1 and Figure 4, breeding box 2 bodies are provided with the inlet opening 18 that is connected with water inlet pipe 7, and the spout hole 19 that is connected with overflow pipe 8; Spout hole 19 is apart from 10 centimetres at breeding box 2 tops, 5 centimetres at 18 concrete breeding box, 2 tops, inlet opening.Water inlet pipe 7 and overflow pipe 8 employing diameters are 1.7 centimetres nontoxic pvc pipe.
Breeding box 2 is provided with an end filter device 9, quartz sand 20 is set on the end filter device 9, quartz sand 20 or yellow sand that breeding box 2 bottoms need the area shop 2-4 cm thick about half supply the parent to perch with hidden, need to adopt end filter device 9 to purify bottom quartz sands 20 simultaneously, and it is smelly to prevent to turn black.
End filter device 9 comprises an end filter plate and an air-floating apparatus; End filter plate adopts wave plate 23; The area of the wave plate 23 of end filter is identical with the area of bottom quartz sand 20 usually;
Air-floating apparatus comprises air supporting pipe 22 and gas charging stone 5, on the end filtering wave plate air supporting pipe 22 and gas charging stone 5 is housed, referring to Fig. 5.
Place a pvc pipe on the quartz sand 20 as things concealed 21, the typically having a diameter from more than 16 centimetres of pvc pipe, length is about 20 centimetres.Can get wherein half use from axially the riving of pvc pipe.
As shown in Figure 1 and Figure 4, breeding box is provided with inlet opening 18 and spout hole 19, and the pvc pipe of being furnished with diameter and being 1.7 centimetres is as water inlet pipe 7 and overflow pipe 8.
Portunus trituberculatus Miers parent circulating water cultivation device, concrete working method is as follows:
1, the slaking of circulating water cultivation device (being biofilm) process
According to shown in Figure 1, finish behind whole parent's cultivator after the assembling, need be to whole cultivating system operation a period of time, treat that water quality index in the system just can culture the parent after stable.Specific practice is that to inject salinity in culturing tank be about 37 centimetres in about 25 seawater, switches on the pump and air pump, heats by air-conditioning temperature-reducing and heating rod, and water temperature is controlled at about the 18-24 degree.Respectively add the glucose of 2-5 mg/litre and ammonium chloride so that carbon source and nitrogenous source to be provided at water body, for nitrosoation on filtrate district 10 filtrates and nitrifying bacteria growth, circulating water cultivation device operation 3-4 puts into one of Portunus trituberculatus Miers (Potunus trituberculatus) about 300 grams in each breeding box after week, measured nitrite and the ammonia-nitrogen content in the water body in per two days one time, 3-4 treats after week that (ammonia nitrogen is less than 1.0 mg/litre for the basicly stable back of water quality, nitrite is less than 0.15 mg/litre) begin to throw something and feed on a small quantity, progressively strengthen feeding volume.After treating the water quality complete stability, nitrous acid almost can not detect, and this filtrate that this water treatment system is described is ripe, and biomembrane is completed into.Whole process probably needs about 8 weeks.
2, the parent selects, transports and and sterilization
The parent crab claims kind of a crab again because Portunus trituberculatus Miers elder generation post-coitum just carries out the development of ovary, so the good female body mating certainly of the development of ovary, so the parent to select mainly be at female body.Usually the individuality that select body weight to be about 300 grams, the development of ovary is good, limbs are sound is as the parent, and is relatively good with wild parent usually.The leading edge of common the Xiong Jia of female body that the development of ovary is good is full of ovary tissue, and select time is good with annual 1-4 month, because this stage is found the good female body of the development of ovary easily.If parent's transportation range is shorter, can from natural waters, directly select embryonic development to be in the ovigerous crab of commitment, these embryos were in eyespot before the phase usually, and color is yellow or faint yellow.The not anti-transportation of ovigerous crab in embryonic development late period, parent's survival rate is low, and causes the embryo to come off easily or die young, and does not therefore advise adopting.Long-distance transport generally should not be selected ovigerous crab if desired, is advisable to select the female preferably body of the development of ovary, needs during transportation to place water tank with ice bag, to reduce water temperature.After the parent chooses, need to adopt the formalin solution of 50-100 mg/litre to sterilize usually about 30 minutes, to kill parasite and germ.
3, daily management
Daily management mission mainly is whether daily check water temperature, inflator pump and water pump normal, afternoon every day 5 residual baits of left and right sides sucking-off and ight soil, parent's bait of throwing something and feeding fresh simultaneously, as the razor clam of hanging, squid and clam worm etc.Suitably replenish the moisture that evaporates every day, to keep salinity relatively stable.Filter cotton in the water treatment case cleans once weekly usually, to remove crude removal.Late Embryogenesis daily check embryonic development situation is transferred in the larval culture pond in case heartbeat, is about to ovigerous crab greater than after 150 times/minute, treats embryo's hatching.Parent after embryo's hatching can put back to parent's breeding box continuation raising and treat to lay eggs for the second time, also can reselect the parent wild or source, pond in addition and put into the parent culture case, for the use of growing seedlings next time.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1, a kind of Portunus trituberculatus Miers parent circulating water cultivation device comprises breeding box and inflator pump, and inflator pump is connected with breeding box by gas tube, and quartz sand is set in the breeding box, it is characterized in that,
Described breeding box is provided with one and prevents breeding box bottom quartz sand anoxic and the end filter device of improveing breeding box bottom water environment, on the end filter device quartz sand is set; Filter device of the described end comprises an end filter plate and an air-floating apparatus;
Described breeding box connects a water treatment case by overflow pipe, and water treatment case is divided into filtrate district and gathering ground, and described water treatment case is connected with breeding box by water inlet pipe.
2, cultivator according to claim 1 is characterized in that: described water treatment case and breeding box be length be 75 centimetres, wide be that 56 centimetres, height are 47 centimetres polyethylene aquarium.
3, cultivator according to claim 1 is characterized in that: described air-floating apparatus comprises air supporting pipe and gas charging stone.
4, cultivator according to claim 3, it is characterized in that: described air supporting pipe comprises outer tube and interior pipe, outer tube is the lucite pipe of 2 centimetres of diameters, and pipe in the outer tube interpolation, interior Guan Weiyi root diameter are the lucite pipe that 1.9 cm heights can free lifting.
5, cultivator according to claim 1 is characterized in that: separate with PVC dividing plate with holes in the middle of described filtrate district and the gathering ground.
6, cultivator according to claim 5 is characterized in that: described filtrate is divided into three-layer filter, is followed successively by the activated carbon, corallite and the ceramic ring filtrate that are used for physical filtering.
7, cultivator according to claim 6 is characterized in that: described activated carbon particle diameter is 2.5 millimeters, and specific surface area is greater than 850m
2/ g.
8, cultivator according to claim 6 is characterized in that: described corallite length is 4-8 centimetre.
9, cultivator according to claim 6 is characterized in that: described ceramic ring diameter is 2.5 centimetres, and length is 2.2 centimetres.
10, cultivator according to claim 1 is characterized in that: the junction of described filtrate district and overflow pipe is provided with a filter cotton that is used to remove bigger particulate matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920071019XU CN201393474Y (en) | 2009-04-23 | 2009-04-23 | Parent circulating water cultivation device of blue crab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920071019XU CN201393474Y (en) | 2009-04-23 | 2009-04-23 | Parent circulating water cultivation device of blue crab |
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| CN201393474Y true CN201393474Y (en) | 2010-02-03 |
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| CN200920071019XU Expired - Fee Related CN201393474Y (en) | 2009-04-23 | 2009-04-23 | Parent circulating water cultivation device of blue crab |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946741A (en) * | 2010-07-26 | 2011-01-19 | 浙江海洋学院 | Swimming crab culturing device |
| CN101971781A (en) * | 2010-10-18 | 2011-02-16 | 宁波大学 | Method for culturing soft blue crabs indoors |
| CN101971780A (en) * | 2010-10-18 | 2011-02-16 | 宁波大学 | Indoor industrial culture method for portunus trituberculatus |
| CN102440213A (en) * | 2011-09-20 | 2012-05-09 | 浙江省海洋水产研究所 | Indoor crab three-dimensional culturing device |
| CN104430118A (en) * | 2013-09-22 | 2015-03-25 | 殷浩淳 | Aquatic life cultivation system |
| CN108207742A (en) * | 2017-12-28 | 2018-06-29 | 广西壮族自治区海洋研究所 | A kind of veil device cultivated for Scylla paramamosain kind crab |
| CN108834958A (en) * | 2018-05-30 | 2018-11-20 | 重庆市水产科学研究所 | A kind of fry breeding device |
| CN108990881A (en) * | 2018-08-24 | 2018-12-14 | 广西大学 | A kind of coral sexual propagation system |
| CN109258538A (en) * | 2018-12-03 | 2019-01-25 | 邹圆圆 | The method for fattening Wild Portunus trituberculatus |
-
2009
- 2009-04-23 CN CN200920071019XU patent/CN201393474Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101946741A (en) * | 2010-07-26 | 2011-01-19 | 浙江海洋学院 | Swimming crab culturing device |
| CN101971780B (en) * | 2010-10-18 | 2013-04-24 | 宁波大学 | Indoor industrial culture method for portunus trituberculatus |
| CN101971781A (en) * | 2010-10-18 | 2011-02-16 | 宁波大学 | Method for culturing soft blue crabs indoors |
| CN101971780A (en) * | 2010-10-18 | 2011-02-16 | 宁波大学 | Indoor industrial culture method for portunus trituberculatus |
| CN101971781B (en) * | 2010-10-18 | 2012-11-28 | 宁波大学 | Method for culturing soft blue crabs indoors |
| CN102440213B (en) * | 2011-09-20 | 2014-06-18 | 浙江省海洋水产研究所 | Indoor crab three-dimensional culturing device |
| CN102440213A (en) * | 2011-09-20 | 2012-05-09 | 浙江省海洋水产研究所 | Indoor crab three-dimensional culturing device |
| CN104430118A (en) * | 2013-09-22 | 2015-03-25 | 殷浩淳 | Aquatic life cultivation system |
| CN108207742A (en) * | 2017-12-28 | 2018-06-29 | 广西壮族自治区海洋研究所 | A kind of veil device cultivated for Scylla paramamosain kind crab |
| CN108834958A (en) * | 2018-05-30 | 2018-11-20 | 重庆市水产科学研究所 | A kind of fry breeding device |
| CN108990881A (en) * | 2018-08-24 | 2018-12-14 | 广西大学 | A kind of coral sexual propagation system |
| CN109258538A (en) * | 2018-12-03 | 2019-01-25 | 邹圆圆 | The method for fattening Wild Portunus trituberculatus |
| CN109258538B (en) * | 2018-12-03 | 2020-08-14 | 邹圆圆 | Method for fattening wild portunus trituberculatus |
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| C17 | Cessation of patent right | ||
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Granted publication date: 20100203 Termination date: 20120423 |