CN110839782A - Lobster feed formula and preparation method - Google Patents
Lobster feed formula and preparation method Download PDFInfo
- Publication number
- CN110839782A CN110839782A CN201910965584.9A CN201910965584A CN110839782A CN 110839782 A CN110839782 A CN 110839782A CN 201910965584 A CN201910965584 A CN 201910965584A CN 110839782 A CN110839782 A CN 110839782A
- Authority
- CN
- China
- Prior art keywords
- meal
- feed
- mixture
- formula
- lobster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
- A23K10/38—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material from distillers' or brewers' waste
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
- A23K20/26—Compounds containing phosphorus
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
- A23K20/28—Silicates, e.g. perlites, zeolites or bentonites
-
- 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
- Y02A40/818—Alternative feeds for fish, e.g. in aquacultures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Molecular Biology (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Physiology (AREA)
- Botany (AREA)
- Mycology (AREA)
- Biomedical Technology (AREA)
- Inorganic Chemistry (AREA)
- Marine Sciences & Fisheries (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Insects & Arthropods (AREA)
- Birds (AREA)
- Fodder In General (AREA)
Abstract
The invention discloses a lobster feed formula and a preparation method, wherein the feed is measured by 1000 kg, and the formula comprises the following substances: 125-135 kg of high gluten flour; 55-65 kg of rice bran; 270-280 kg of soybean meal (43); 215-225 kg of rapeseed meal; 105-115 kg of rice wine dregs; 35-45 kg of sodium glutamate; 15-25 kg of domestic fish meal; 15-25 kg of pork powder (65); 15-25 kg of monocalcium phosphate; 25-35 kg of bentonite; 15-25 kg of cuttlefish paste; 25-35 kg of soybean oil; 5-15 kg of premix (shrimps); 10-20 kg of sodium humate, the lobster feed additive can achieve the effect of enhancing the organism immune function of lobsters, improves the disease prevention and resistance of the lobsters, has reasonable component proportion and rich nutrition, and is suitable for long-term feeding of fish fries in freshwater fish ponds or sea captive fish ponds.
Description
Technical Field
The invention relates to the technical field of aquatic feeds, in particular to a lobster feed formula and a preparation method thereof.
Background
Crayfish, also known as procambarus clarkii, crayfish and freshwater crayfish, has a hard, elongated shell. The crayfish has the advantages that the length of the formed crayfish is about 5.6-11.9 cm, the body is dark red, the crust part is nearly black, and the back of the abdomen is provided with a wedge-shaped stripe. The young shrimp bodies are uniformly gray and sometimes have black ripples. The middle part of the shell of the crayfish is not separated by the mesh-shaped gap, and the surface of the shell has obvious particles. The frontal sword of crayfish has lateral spines or nicks. The crayfish is a freshwater economic crayfish, and is popular with people due to delicious taste and rich nutrition. The ecological fertilizer has the characteristics of omnivorous property, high growth speed and strong adaptability, so that absolute competitive advantages are formed in the ecological environment. The food intake range of the feed comprises aquatic weeds, algae, aquatic insects, animal carcasses and the like, and the feed can be killed by self when the food is deficient.
The crayfish feed for artificial feeding of crayfish has the problem of unbalanced nutrition, so that the produced crayfish generally has the defects of smaller individual, poorer color, more diseases and poor taste and nutrition, cannot reach the nutrition of natural crayfish, the survival rate and the yield of the crayfish are affected, and the corresponding economic benefit of farmers cannot be guaranteed.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention aims to provide the lobster feed formula which is balanced in nutrition and capable of improving the survival rate of the crayfish.
After adopting the structure, the invention provides the following technical scheme:
the feed for lobsters is 1000 kg, and comprises the following components in parts by weight: 125-135 kg of high gluten flour; 55-65 kg of rice bran; 270-280 kg of soybean meal (43); 215-225 kg of rapeseed meal; 105-115 kg of rice wine dregs; 35-45 kg of sodium glutamate; 15-25 kg of domestic fish meal; 15-25 kg of pork powder (65); 15-25 kg of monocalcium phosphate; 25-35 kg of bentonite; 15-25 kg of cuttlefish paste; 25-35 kg of soybean oil; 5-15 kg of premix (shrimps); 10-20 kg of sodium humate.
Preferably, the feed is 1000 kg, and the formula comprises the following substances: 125 kg of high gluten flour; 55 kg of rice bran; 270 kg of soybean meal (43); 215 kg of rapeseed meal; 105 kg of rice wine dregs; 45 kg of sodium glutamate; 25 kg of domestic fish meal; 25 kg of pork powder (65); 25 kilograms of calcium dihydrogen phosphate; 25 kg of bentonite; 25 kg of cuttlefish paste; 25 kg of soybean oil; 15 kg of premix (shrimps); 20 kg of sodium humate.
Preferably, the feed is 1000 kg, and the formula comprises the following substances: 130 kg of high gluten flour; 60 kg of rice bran; 275 kg of soybean meal (43); 220 kg of rapeseed meal; 110 kg of rice wine dregs; 40 kg of sodium glutamate; 20 kg of domestic fish meal; 20 kg of pork powder (65); 20 kilograms of calcium dihydrogen phosphate; 30 kg of bentonite; 20 kg of cuttlefish paste; 30 kg of soybean oil; 10 kg of premix (shrimp); 15 kg of sodium humate.
Preferably, the feed is 1000 kg, and the formula comprises the following substances: 135 kg of strong flour; 65 kg of rice bran; 280 kg of soybean meal (43); 225 kg of rapeseed meal; 115 kg of rice wine dregs; 35 kg of sodium glutamate; 15 kg of domestic fish meal; 15 kg of pork powder (65); 15 kilograms of calcium dihydrogen phosphate; 35 kg of bentonite; 15 kg of cuttlefish paste; 35 kg of soybean oil; 5 kg of premix (shrimp); 10 kg of sodium humate.
The preparation method of the lobster feed comprises the following specific steps:
s1: adding the high gluten flour, rice bran, bean pulp (43), rapeseed meal, rice wine dregs, sodium glutamate, domestic fish meal, pork powder (65), monocalcium phosphate, bentonite, cuttlefish paste, premix (shrimp) and sodium humate into a stirring device according to a formula, and stirring to obtain a mixture A.
S2: and (3) carrying out superfine grinding on the obtained mixture A until more than 95% of the mixture A can pass through a 100-mesh sieve.
S3: then adding the soybean oil into the mixture A subjected to superfine grinding, and stirring again to obtain a mixture B;
s4: and (5) carrying out conditioning, granulating, drying, cooling and crushing on the mixture B obtained in the step S3 to obtain the lobster micro-pellet feed.
The lobster feed formula and the preparation method provided by the invention have the beneficial effects that: the lobster feed additive can enhance the organism immunity of lobsters and improve the disease prevention and resistance of the lobsters, has reasonable component ratio and rich nutrition, and is suitable for long-term feeding of fish fries in freshwater fish ponds or sea captive fish ponds.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
The feed for lobsters is 1000 kg, and comprises the following components in parts by weight: the feed is measured by 1000 kg, and the formula comprises the following substances: 125 kg of high gluten flour; 55 kg of rice bran; 270 kg of soybean meal (43); 215 kg of rapeseed meal; 105 kg of rice wine dregs; 45 kg of sodium glutamate; 25 kg of domestic fish meal; 25 kg of pork powder (65); 25 kg of monocalcium phosphate; 25 kg of bentonite; 25 kg of cuttlefish paste; 25 kg of soybean oil; 15 kg of premix (shrimps); 20 kg of sodium humate.
The preparation method of the lobster feed comprises the following specific steps:
s1: adding the high gluten flour, rice bran, bean pulp (43), rapeseed meal, rice wine dregs, sodium glutamate, domestic fish meal, pork powder (65), monocalcium phosphate, bentonite, cuttlefish paste, premix (shrimp) and sodium humate into a stirring device according to a formula, and stirring to obtain a mixture A.
S2: and (3) carrying out superfine grinding on the obtained mixture A until more than 95% of the mixture A can pass through a 100-mesh sieve.
S3: then adding the soybean oil into the mixture A subjected to superfine grinding, and stirring again to obtain a mixture B;
s4: and (5) carrying out conditioning, granulating, drying, cooling and crushing on the mixture B obtained in the step S3 to obtain the lobster micro-pellet feed.
Example two
The feed for lobsters is 1000 kg, and comprises the following components in parts by weight: the feed is measured by 1000 kg, and the formula comprises the following substances: 130 kg of high gluten flour; 60 kg of rice bran; 275 kg of soybean meal (43); 220 kg of rapeseed meal; 110 kg of rice wine dregs; 40 kg of sodium glutamate; 20 kg of domestic fish meal; 20 kg of pork powder (65); 20 kg of monocalcium phosphate; 30 kg of bentonite; 20 kg of cuttlefish paste; 30 kg of soybean oil; 10 kg of premix (shrimp); 15 kg of sodium humate.
The preparation method of the lobster feed comprises the following specific steps:
s1: adding the high gluten flour, rice bran, bean pulp (43), rapeseed meal, rice wine dregs, sodium glutamate, domestic fish meal, pork powder (65), monocalcium phosphate, bentonite, cuttlefish paste, premix (shrimp) and sodium humate into a stirring device according to a formula, and stirring to obtain a mixture A.
S2: and (3) carrying out superfine grinding on the obtained mixture A until more than 95% of the mixture A can pass through a 100-mesh sieve.
S3: then adding the soybean oil into the mixture A subjected to superfine grinding, and stirring again to obtain a mixture B;
s4: and (5) carrying out conditioning, granulating, drying, cooling and crushing on the mixture B obtained in the step S3 to obtain the lobster micro-pellet feed.
EXAMPLE III
The feed for lobsters is 1000 kg, and comprises the following components in parts by weight: the feed is measured by 1000 kg, and the formula comprises the following substances: 135 kg of strong flour; 65 kg of rice bran; 280 kg of soybean meal (43); 225 kg of rapeseed meal; 115 kg of rice wine dregs; 35 kg of sodium glutamate; 15 kg of domestic fish meal; 15 kg of pork powder (65); 15 kg of monocalcium phosphate; 35 kg of bentonite; 15 kg of cuttlefish paste; 35 kg of soybean oil; 5 kg of premix (shrimp); 10 kg of sodium humate.
The preparation method of the lobster feed comprises the following specific steps:
s1: adding the high gluten flour, rice bran, bean pulp (43), rapeseed meal, rice wine dregs, sodium glutamate, domestic fish meal, pork powder (65), monocalcium phosphate, bentonite, cuttlefish paste, premix (shrimp) and sodium humate into a stirring device according to a formula, and stirring to obtain a mixture A.
S2: and (3) carrying out superfine grinding on the obtained mixture A until more than 95% of the mixture A can pass through a 100-mesh sieve.
S3: then adding the soybean oil into the mixture A subjected to superfine grinding, and stirring again to obtain a mixture B;
s4: and (5) carrying out conditioning, granulating, drying, cooling and crushing on the mixture B obtained in the step S3 to obtain the lobster micro-pellet feed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent substitutions or changes according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (5)
1. A lobster feed formula and a preparation method are characterized in that: the feed is measured by 1000 kg, and the formula comprises the following substances: 125-135 kg of high gluten flour; 55-65 kg of rice bran; 270-280 kg of soybean meal (43); 215-225 kg of rapeseed meal; 105-115 kg of rice wine dregs; 35-45 kg of sodium glutamate; 15-25 kg of domestic fish meal; 15-25 kg of pork powder (65); 15-25 kg of monocalcium phosphate; 25-35 kg of bentonite; 15-25 kg of cuttlefish paste; 25-35 kg of soybean oil; 5-15 kg of premix (shrimps); 10-20 kg of sodium humate.
2. The lobster feed formula and the preparation method thereof according to claim 1 are characterized in that: the feed is measured by 1000 kg, and the formula comprises the following substances: 125 kg of high gluten flour; 55 kg of rice bran; 270 kg of soybean meal (43); 215 kg of rapeseed meal; 105 kg of rice wine dregs; 45 kg of sodium glutamate; 25 kg of domestic fish meal; 25 kg of pork powder (65); 25 kg of monocalcium phosphate; 25 kg of bentonite; 25 kg of cuttlefish paste; 25 kg of soybean oil; 15 kg of premix (shrimps); 20 kg of sodium humate.
3. The lobster feed formula and the preparation method thereof according to claim 1 are characterized in that: the feed is measured by 1000 kg, and the formula comprises the following substances: 130 kg of high gluten flour; 60 kg of rice bran; 275 kg of soybean meal (43); 220 kg of rapeseed meal; 110 kg of rice wine dregs; 40 kg of sodium glutamate; 20 kg of domestic fish meal; 20 kg of pork powder (65); 20 kg of monocalcium phosphate; 30 kg of bentonite; 20 kg of cuttlefish paste; 30 kg of soybean oil; 10 kg of premix (shrimp); 15 kg of sodium humate.
4. The lobster feed formula and the preparation method thereof according to claim 1 are characterized in that: the feed is measured by 1000 kg, and the formula comprises the following substances: 135 kg of strong flour; 65 kg of rice bran; 280 kg of soybean meal (43); 225 kg of rapeseed meal; 115 kg of rice wine dregs; 35 kg of sodium glutamate; 15 kg of domestic fish meal; 15 kg of pork powder (65); 15 kg of monocalcium phosphate; 35 kg of bentonite; 15 kg of cuttlefish paste; 35 kg of soybean oil; 5 kg of premix (shrimp); 10 kg of sodium humate.
5. A method of preparing a shrimp feed according to any one of claims 1-4, comprising the steps of:
s1: adding the high gluten flour, rice bran, bean pulp (43), rapeseed meal, rice wine dregs, sodium glutamate, domestic fish meal, pork powder (65), monocalcium phosphate, bentonite, cuttlefish paste, premix (shrimp) and sodium humate into a stirring device according to a formula, and stirring to obtain a mixture A.
S2: and (3) carrying out superfine grinding on the obtained mixture A until more than 95% of the mixture A can pass through a 100-mesh sieve.
S3: then adding the soybean oil into the mixture A subjected to superfine grinding, and stirring again to obtain a mixture B;
s4: and (5) carrying out conditioning, granulating, drying, cooling and crushing on the mixture B obtained in the step S3 to obtain the lobster micro-pellet feed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910965584.9A CN110839782A (en) | 2019-10-12 | 2019-10-12 | Lobster feed formula and preparation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910965584.9A CN110839782A (en) | 2019-10-12 | 2019-10-12 | Lobster feed formula and preparation method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110839782A true CN110839782A (en) | 2020-02-28 |
Family
ID=69597300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910965584.9A Withdrawn CN110839782A (en) | 2019-10-12 | 2019-10-12 | Lobster feed formula and preparation method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110839782A (en) |
-
2019
- 2019-10-12 CN CN201910965584.9A patent/CN110839782A/en not_active Withdrawn
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103202406B (en) | Feed for tendering meat quality of grass carp and preparation method thereof | |
CN103005188B (en) | Mixed feed for middle-sized penaeus vanname | |
CN103504133A (en) | Feed for phasianus colchicas | |
CN102132783A (en) | Composite feed for feeding litopenaeus vannamei boone cultured at low salinity and preparation method thereof | |
CN101904443B (en) | Compound feed for producing health-care eggs with high iodine and low cholesterol | |
CN105851490A (en) | Freshwater-shrimp larva feed for enhancing immunity | |
CN108606188A (en) | A kind of bighead functionality expanded pellet diet and preparation method thereof | |
CN104543449A (en) | Special fresh particle puffed feed for salmons and preparation method of feed | |
CN102524578B (en) | Turtle feed and preparation method thereof | |
CN105995048A (en) | Feed for improving muscle quality of carps and preparation method of feed | |
CN104605192A (en) | Efficient and environment-friendly compound feed for litopenaeus vannamei and preparation method of compound feed | |
CN105325748A (en) | Feed capable of improving reproductive capacity of breed ducks of Weishan sheldrake | |
CN103734490B (en) | A kind of Crab Portunus trituberculatus Larvae cultivates feed | |
CN104041721A (en) | River crab feed | |
CN110839782A (en) | Lobster feed formula and preparation method | |
CN108669304A (en) | A kind of grass goldfish health-care feed | |
CN107373040A (en) | A kind of green and healthy feed for river crab | |
CN108813133B (en) | Paramisgurnus dabryanus astaxanthin compound feed | |
CN103110031B (en) | Trachinotus ovatus compound feed with anti-stress function | |
CN105380001A (en) | Carp feed | |
CN109156661A (en) | A kind of cray feed | |
CN105851817A (en) | Seafood-flavored rice noodles | |
CN103719709A (en) | Wild lobster noodle and preparation method thereof | |
CN107821877A (en) | A kind of Odontobutis obscura prelarva starter diet | |
CN105558320A (en) | Full-nutrition fresh water fish feed |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200228 |
|
WW01 | Invention patent application withdrawn after publication |