CN106879504B - Perch carp cement pond culture method - Google Patents
Perch carp cement pond culture method Download PDFInfo
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- CN106879504B CN106879504B CN201710034419.2A CN201710034419A CN106879504B CN 106879504 B CN106879504 B CN 106879504B CN 201710034419 A CN201710034419 A CN 201710034419A CN 106879504 B CN106879504 B CN 106879504B
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- 239000004568 cement Substances 0.000 title claims abstract description 50
- 238000012136 culture method Methods 0.000 title claims abstract description 7
- 241000252233 Cyprinus carpio Species 0.000 title abstract description 9
- 241000269799 Perca fluviatilis Species 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 241001504942 Percocypris pingi Species 0.000 claims abstract description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 239000011780 sodium chloride Substances 0.000 claims abstract description 11
- 241000700141 Rotifera Species 0.000 claims abstract description 9
- 235000013601 eggs Nutrition 0.000 claims abstract description 5
- 230000009027 insemination Effects 0.000 claims abstract description 5
- 230000009182 swimming Effects 0.000 claims abstract description 3
- 241000251468 Actinopterygii Species 0.000 claims description 15
- 235000019750 Crude protein Nutrition 0.000 claims description 12
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004472 Lysine Substances 0.000 claims description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 12
- 239000011574 phosphorus Substances 0.000 claims description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- 241000252210 Cyprinidae Species 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- 235000019784 crude fat Nutrition 0.000 claims description 8
- 230000001418 larval effect Effects 0.000 claims description 8
- 239000005341 toughened glass Substances 0.000 claims description 8
- 230000003203 everyday effect Effects 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 241000595940 Notostraca Species 0.000 claims description 5
- 235000015097 nutrients Nutrition 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 claims description 4
- 239000010985 leather Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 241000276618 Perciformes Species 0.000 claims description 2
- 238000011534 incubation Methods 0.000 claims description 2
- 238000012364 cultivation method Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 238000012258 culturing Methods 0.000 abstract description 6
- 230000000249 desinfective effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 abstract description 3
- 230000004083 survival effect Effects 0.000 abstract description 3
- 238000009360 aquaculture Methods 0.000 abstract description 2
- 244000144974 aquaculture Species 0.000 abstract description 2
- 230000012447 hatching Effects 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 235000016709 nutrition Nutrition 0.000 abstract description 2
- 238000006213 oxygenation reaction Methods 0.000 abstract description 2
- 241001247197 Cephalocarida Species 0.000 abstract 1
- 241000269801 Perca Species 0.000 abstract 1
- 238000005496 tempering Methods 0.000 abstract 1
- 235000012041 food component Nutrition 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- 241001504944 Percocypris Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000009537 qingyi Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Fodder In General (AREA)
- Feed For Specific Animals (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention belongs to the technical field of aquaculture, and particularly relates to a perco carp cement pond large-scale culture method, which comprises the following steps: (1) after hatching the fertilized eggs of perca carpio obtained by artificial insemination, transferring the obtained flat swimming fries into a round glass tempering tank, keeping micro-flow water and oxygenation in 3000 tail parts of each tank, disinfecting and filtering the artificially cultured rotifers with 2% saline water, feeding the fries once in the morning and at the evening, culturing for 30 days, (2) transferring the fries into a standard cement pond, feeding the artificially incubated artemia within the first 15 days, (3) starting feeding nutritional powdery compound feed after 15 days, (4) starting feeding the floating compound feed after 75 days of cement pond culture, (5) feeding the floating compound feed after 360 days in the cement pond, and (6) reaching the standard of marketing after 500 days of cement pond culture. The method disclosed by the invention has the advantages that the culture cost in the cement pond is low, the quick culture of the percocypris pingi can be realized, the survival rate is high, and the large-scale production of the percocypris pingi is realized.
Description
Technical Field
The invention belongs to the technical field of aquaculture, and particularly relates to a perco carp cement pond large-scale culture method.
Background
Percocypris (Percocypris pingi) is commonly called flower fish, belongs to Percocy privhu (Percocy) of Cyclinidae of Cyprinidae, is mainly distributed in upstream Yangtze river, Qingyi river, Jinshajiang river, Wujiang river, Chishui river and other watersheds of Yangtze river, and is an important economic fish in a production area. In recent years, due to the change of the ecological environment of the perch carp habitat, the resource amount is in a descending trend, belongs to endangered fishes, and is listed as one of key protection fishes at present. Perch carp is a high-quality edible precious fish with high nutritive value, has the effects of eliminating phlegm, stopping bleeding and calming, and is popular with people. Therefore, a method for artificially culturing percocypris pingi in a large scale is urgently needed to meet the market demand.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides the perco cement pond culture method which is low in cost, high in survival rate and capable of realizing large-scale culture.
The technical scheme is as follows:
a perco carp cement pond culture method comprises the following steps:
(1) after fertilized eggs of Perciformes obtained by artificial insemination are hatched, flat swimming fries are obtained, fries with the total length of 1.0-1.2cm are selected and moved into a round toughened glass jar, 3000 tails of each jar are kept in micro-flow water and are oxygenated, the water temperature is adjusted to be 13-15 ℃, the artificially cultivated rotifers are sterilized and filtered by 2% saline water and fed to the fries, the fries are fed once in the morning and at night every day, excrement and residual baits in the toughened glass jar are siphoned by a leather hose every day, 2ppm of strong chlorine is sprayed every week for sterilization, and the fries are cultivated for 30 days;
(2) transferring the larval fish with the total length of 2.1-2.5cm obtained in the step (1) into a standardized cement pond, wherein the length of the cement pond is 10m, the width of the cement pond is 5m, the height of the cement pond is 1.2m, the tail of each pond is 5000, the water temperature is adjusted to be 18-20 ℃, transferring the larval fish into the cement pond for the first 15 days, feeding the artificial incubation fairy shrimp once every morning and evening, and keeping micro-flowing water;
(3) after 15 days of culture in a cement pond, feeding powdery compound feed with nutrient components of crude protein being more than or equal to 46, crude fiber being more than or equal to 1.5, crude ash being less than or equal to 17, water being less than or equal to 10, total phosphorus being more than or equal to 1.5, crude fat being more than or equal to 3 and lysine being more than or equal to 2.4, stirring the feed with water, placing the feed on two tables in the cement pond, cleaning the rest feed fed in the previous time in the tables before placing the feed each time, placing new feed again, adjusting the water temperature to be 21-23 ℃, and carrying out splashing sterilization by using a strong chlorine concentrate pond every 10 days;
(4) after the cement pond is cultured for 75 days, or the larval fish grows to 5cm in the whole length, the water temperature is adjusted to 18-20 ℃, and the floating compound feed with the nutrient components of crude protein being not less than 35, sodium chloride being 0.3-1.6, crude fiber being not less than 6, crude ash being not less than 12, water being not less than 12.5, calcium being 0.5-1.5, total phosphorus being not less than 0.9, crude fat being not less than 6 and lysine being not less than 2.2 is fed to the larval fish, and the cement pond is cleaned once in the morning and evening and every 3 months;
(5) after the percocypris pingi is cultured in a cement pond for 360 days, or the percocypris pingi is cultured to the average length of 15cm, the water temperature is adjusted to 12-15 ℃, and feeding mixed feed with crude protein being not less than 30, crude fiber being not less than 10, crude ash being not less than 12, water being not less than 12.5, calcium being 0.5-1.5, total phosphorus being not less than 0.8, sodium chloride being 0.3-1.6 and lysine being not less than 1.6 is fed;
(6) after 500 days of cement pond culture, the water temperature is adjusted to be 20-21 ℃, the perco carps grow to the average length of 25cm, and the market specification is reached.
Further, the rotifers are obtained by fishing through a plankton net or pumping through a water pump.
According to the method for cultivating the percocypris pingi, the percocypris pingi is cultivated in the cement pond, the water temperature in the cement pond is easy to adjust, and the water temperature in the cement pond can be controlled according to the water temperature environments required by the percocypris pingi in different growth stages; meanwhile, the cement tank is convenient to feed and clean, different foods can be fed in different periods, the cement tank is cleaned regularly, the water quality is good, and a high-quality growth environment can be created for the percocypris pingi; in addition, the weever carp is fed with rotifer, fairy shrimp and compound feed, so that the feeding cost is low; the method can create a culture environment suitable for the growth cycle of the percocypris pingi, can realize the rapid culture of the percocypris pingi, has high survival rate, enables the large-scale production of the percocypris pingi and meets the market demand.
Detailed Description
Example 1
Carrying out artificial propagation of parent perco carps on 27 days 4 months 4 in 2014, obtaining Pingyuan fry after hatching fertilized eggs of the perco carps obtained by artificial insemination, selecting the fry with the total length of 1.0, transferring into a round toughened glass jar, regulating the water temperature to 15.0 ℃, keeping micro-flow water and oxygenation, feeding artificially cultured rotifers which are obtained by fishing through a plankton net or extracting through a water pump, disinfecting and filtering by 2% saline water, feeding the fries once in the morning and at night every day, and disinfecting by siphoning excrement and residual bait in a glass jar with a leather hose and 2ppm strong chlorine essence every week every day; culturing in toughened glass jar for 5 months and 30 days in 2014, selecting 2.1 cm-long fish fries, transferring into standardized cement ponds (10 m long, 5m wide, and 1.2m high), adjusting water temperature to 20.0 deg.C at 5000 tails of each pond, feeding artificially-hatched fairy shrimp once every morning and evening, and maintaining flowing water in the cement ponds; on 15 days 6 months 2014, adjusting the water temperature to 21.0 ℃, starting feeding powdery compound feed with nutritional components of crude protein being larger than or equal to 46, crude fiber being smaller than or equal to 1.5, crude ash being smaller than or equal to 17, water being smaller than or equal to 10, total phosphorus being larger than or equal to 1.5, crude fat being larger than or equal to 3 and lysine being larger than or equal to 2.4, stirring the feed with water, placing the feed on two tables in a cement pond, cleaning the rest feed fed in the previous time in the tables and placing new feed before placing the feed each time, and carrying out splashing sterilization by using a strong chlorine concentrate pond every 10 days; 8/15 days in 2014, adjusting the water temperature to 18.0 ℃, enabling the percipid to grow to 5cm in full length, and feeding a floating compound feed with nutritional components of crude protein ≧ 35, sodium chloride 0.3-1.6, crude fiber ≦ 6, crude ash ≦ 12, water ≦ 12.5, calcium 0.5-1.5, total phosphorus ≧ 0.9, crude fat ≧ 6 and lysine ≧ 2.2, once in the morning and at night; cleaning the cement pool once every 3 months; 25 days 4 months 2015, adjusting the water temperature to 12.0 ℃, culturing percocypris pingi to the full length of 15cm, feeding a floating compound feed with the nutritional ingredients of crude protein ≧ 30, crude fiber ≦ 10, crude ash ≦ 12, water ≦ 12.5, calcium 0.5-1.5, total phosphorus ≧ 0.8, salt 0.3-1.6 and lysine ≧ 1.6; raising in a cement pond to 2015, 10 months and 15 days, adjusting the water temperature to 21.0 ℃, wherein the total length of the perco carps is 25cm on average, the weight of the perco carps reaches 190g on average, and the perco carps reach the marketing specification.
Example 2
3, 30 days in 2015, carrying out artificial propagation of parent percocypris pingi, after fertilized eggs of percocypris pingi obtained by artificial insemination are incubated, obtaining Pingyuan fry, selecting fry with the total length of 1.2cm, transferring into a round toughened glass jar, regulating the water temperature to 13.0 ℃, keeping micro-flow water and increasing oxygen, feeding artificially cultured rotifers, wherein the rotifers are obtained by fishing through a plankton net or extracting through a water pump, disinfecting and filtering by 2% saline water, feeding the fries once in the morning and at night every day, siphoning excrement and residual bait in a glass jar by using a leather hose, and sprinkling 2ppm of strong chlorine for disinfection every week; culturing in toughened glass jar for 2015 year for 4 months and 30 days, selecting 2.5cm fish fries, transferring into standardized cement ponds (10 m long, 5m wide and 1.2m high), adjusting water temperature to 18.0 deg.C at 5000 tails of each pond, feeding artificially-hatched fairy shrimp once every morning and evening, and maintaining flowing water in the cement ponds; 15 days 5 months 2015, adjusting the water temperature to 23.0 ℃, starting feeding powdery compound feed with nutrient components of crude protein being larger than or equal to 46, crude fiber being smaller than or equal to 1.5, crude ash being smaller than or equal to 17, water being smaller than or equal to 10, total phosphorus being larger than or equal to 1.5, crude fat being larger than or equal to 3 and lysine being larger than or equal to 2.4, stirring the feed with water, placing the feed on two tables in a cement pond, cleaning the rest feed fed in the previous time in the tables and placing new feed before placing the feed each time, and carrying out sprinkling sterilization by using a strong chlorine concentrate pond every 10 days; 7/15 days 2015, adjusting the water temperature to 20.0 ℃, enabling the percipid to grow to 6cm in full length, and feeding a floating compound feed which comprises crude protein ≧ 35, sodium chloride 0.3-1.6, crude fiber ≦ 6, crude ash ≦ 12, water ≦ 12.5, calcium 0.5-1.5, total phosphorus ≧ 0.9, crude fat ≧ 6 and lysine ≧ 2.2 as nutritional components, and the feed is taken in the morning and at night; cleaning the cement pond once every 3 months, wherein the water temperature is adjusted to 15.0 ℃, the percipid is cultured to the total length of 17cm in 2016 year, 4 months and 25 days, and feeding a floating compound feed which comprises the nutritional components of crude protein being not less than 30, crude fiber being not less than 10, crude ash being not less than 12, water being not less than 12.5, calcium being 0.5-1.5, total phosphorus being not less than 0.8, salt being 0.3-1.6 and lysine being not less than 1.6; culturing in cement pond for 2016, 9 and 15 days, adjusting water temperature to 20.0 deg.C, average total length of Perch carp 25cm, average body weight 190g, and marketing standard.
Claims (2)
1. The percocypris pingi cement pond culture method is characterized by comprising the following steps: (1) after fertilized eggs of Perciformes obtained by artificial insemination are hatched, flat swimming fries are obtained, fries with the total length of 1.0-1.2cm are selected and moved into a round toughened glass jar, 3000 tails of each jar are kept in micro-flow water and are oxygenated, the water temperature is adjusted to be 13-15 ℃, the artificially cultivated rotifers are sterilized and filtered by 2% saline water and fed to the fries, the fries are fed once in the morning and at night every day, excrement and residual baits in the toughened glass jar are siphoned by a leather hose every day, 2ppm of strong chlorine is sprayed every week for sterilization, and the fries are cultivated for 30 days; (2) transferring the larval fish with the total length of 2.1-2.5cm obtained in the step (1) into a standardized cement pond, wherein the length of the cement pond is 10m, the width of the cement pond is 5m, the height of the cement pond is 1.2m, the tail of each pond is 5000, the water temperature is adjusted to be 18-20 ℃, transferring the larval fish into the cement pond for the first 15 days, feeding the artificial incubation fairy shrimp once every morning and evening, and keeping micro-flowing water; (3) after 15 days of culture in a cement pond, feeding powdery compound feed with nutrient components of crude protein being more than or equal to 46, crude fiber being more than or equal to 1.5, crude ash being less than or equal to 17, water being less than or equal to 10, total phosphorus being more than or equal to 1.5, crude fat being more than or equal to 3 and lysine being more than or equal to 2.4, stirring the feed with water, placing the feed on two tables in the cement pond, cleaning the rest feed fed in the previous time in the tables before placing the feed each time, placing new feed again, adjusting the water temperature to be 21-23 ℃, and carrying out splashing sterilization by using a strong chlorine concentrate pond every 10 days; (4) after the cement pond is cultured for 75 days, or the larval fish grows to 5cm in the whole length, the water temperature is adjusted to 18-20 ℃, and the floating compound feed with the nutrient components of crude protein being not less than 35, sodium chloride being 0.3-1.6, crude fiber being not less than 6, crude ash being not less than 12, water being not less than 12.5, calcium being 0.5-1.5, total phosphorus being not less than 0.9, crude fat being not less than 6 and lysine being not less than 2.2 is fed to the larval fish, and the cement pond is cleaned once in the morning and evening and every 3 months; (5) after the percocypris pingi is cultured in a cement pond for 360 days, or the percocypris pingi is cultured to the average length of 15cm, the water temperature is adjusted to 12-15 ℃, and feeding mixed feed with crude protein being not less than 30, crude fiber being not less than 10, crude ash being not less than 12, water being not less than 12.5, calcium being 0.5-1.5, total phosphorus being not less than 0.8, sodium chloride being 0.3-1.6 and lysine being not less than 1.6 is fed; (6) after 500 days of cement pond culture, the water temperature is adjusted to be 20-21 ℃, the perco carps grow to the average length of 25cm, and the market specification is reached.
2. The cement pond cultivation method of percypris, according to claim 1, wherein the rotifers are obtained by plankton net fishing or water pump extraction.
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| CN201710034419.2A CN106879504B (en) | 2017-01-18 | 2017-01-18 | Perch carp cement pond culture method |
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| CN109042414A (en) * | 2018-07-18 | 2018-12-21 | 珠海强龙生物科技有限公司 | A kind of Penaeus monodon feed and its application method |
| CN109392773A (en) * | 2018-10-11 | 2019-03-01 | 玉龙县冲江河种养殖开发有限公司 | A kind of artificial breeding method of perch carp |
| CN110050728A (en) * | 2019-04-30 | 2019-07-26 | 云南省渔业科学研究院 | A kind of sturgeon cultivation method in plateau waters |
| CN111919795A (en) * | 2020-07-15 | 2020-11-13 | 广西壮族自治区水产引育种中心 | Breeding method of red tilapia |
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| CN102893935B (en) * | 2012-11-02 | 2014-10-01 | 毕节市水产技术推广站 | Method for domesticating and raising percocypris pingi pingi |
| BR102013022569A2 (en) * | 2013-09-04 | 2016-05-24 | Jose Antonio Gomes Da Silva | automatic feeder for fish among other production animals |
| CN104041444A (en) * | 2014-06-30 | 2014-09-17 | 江川县水产技术推广站 | Raising, training and managing technology for wild percocypris pingi regani |
| CN104509745A (en) * | 2014-12-23 | 2015-04-15 | 四川省农业科学院水产研究所 | Starter feed for percocypris pingi juveniles |
| CN104663547B (en) * | 2015-03-11 | 2017-06-13 | 中国水产科学研究院长江水产研究所 | A kind of perch carp large-scale artificial propagation method |
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Inventor after: Liang Xiang Inventor after: Zuo Pengxiang Inventor after: Wang Zhifei Inventor after: Zhong Wenwu Inventor after: Cui Lili Inventor after: Li Xiaodi Inventor after: Lei Chun Inventor after: Liu Ling Inventor after: Yang Jinsong Inventor after: Leng Yun Inventor after: Yin Xiang Inventor after: Li Guanghua Inventor after: Deng Yulin Inventor after: Zhang Jianbin Inventor after: Zhao Chengyuan Inventor after: Jiu Xiangjun Inventor before: Liang Xiang Inventor before: Zuo Pengxiang Inventor before: Wang Zhifei Inventor before: Zhong Wenwu Inventor before: Cui Lili Inventor before: Li Xiaodi Inventor before: Lei Chun Inventor before: Liu Ling Inventor before: Yang Jinsong Inventor before: Leng Yun Inventor before: Yin Xiang Inventor before: Li Guanghua Inventor before: Deng Yulin Inventor before: Zhang Jianbin Inventor before: Zhao Chengyuan Inventor before: Jiu Xiangjun |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |