NO345198B1 - Positioning of a Feed Spreader in aquaculture pen for farming of marine organisms - Google Patents
Positioning of a Feed Spreader in aquaculture pen for farming of marine organisms Download PDFInfo
- Publication number
- NO345198B1 NO345198B1 NO20190851A NO20190851A NO345198B1 NO 345198 B1 NO345198 B1 NO 345198B1 NO 20190851 A NO20190851 A NO 20190851A NO 20190851 A NO20190851 A NO 20190851A NO 345198 B1 NO345198 B1 NO 345198B1
- Authority
- NO
- Norway
- Prior art keywords
- feed
- spreader
- feed spreader
- feeding system
- fastening means
- Prior art date
Links
- 238000009360 aquaculture Methods 0.000 title claims description 60
- 244000144974 aquaculture Species 0.000 title claims description 60
- 238000009313 farming Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 241000251468 Actinopterygii Species 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 25
- 238000007667 floating Methods 0.000 claims description 11
- 238000010801 machine learning Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 101000579646 Penaeus vannamei Penaeidin-1 Proteins 0.000 description 5
- 238000009395 breeding Methods 0.000 description 5
- 230000001488 breeding effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000384 rearing effect Effects 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- A01K61/80—Feeding devices
-
- 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)
- Farming Of Fish And Shellfish (AREA)
- Feed For Specific Animals (AREA)
Description
Field of the invention
The present invention relates to a feeding system and a method for operating said feeding system for feeding marine organisms within an aquaculture pen in a fish farm. The system comprises a floating feed spreader connected to a feed station by a tubular. The feed spreader having an outlet for feed.
Background of the invention
The aquaculture industry has developed into a billion dollar business worldwide. The industry aims to produce safe, healthy and good seafood, in addition to create jobs. Over the past few years, the industry have faced stricter governmental regulations, especially concerning sustainable production. Sustainable farming that keep the environmental footprint within acceptable limits is a prerequisite for long-term growth of the industry. One of the many aspects in a sustainable production line is an efficient method of feeding the fish.
A fish farm typically consists of a number of different aquaculture pens connected together, containing fish at different stages in their life cycle. The size of an aquaculture pen usually ranges from 30-50 meters in diameter and 30-50 meters in depth. Normally a common feed station will provide the different aquaculture pens with feed from a silo through a feed spreader. The feed spreader is usually fixed at the centre of the aquaculture pen by ropes or wires attached to the outer ring of the aquaculture pen, typically with three ropes. The feed spreader is connected to the silo in one end, and the other end has an outlet for the feed. In some configurations, feed is ejected from the outlet in a circle around the feed spreader, as the outlet rotates about its own axis. In a common embodiment, the outlet is protruding above the water surface in a somewhat horizontal direction, or the outlet can have an angle relative to the water surface. Usually one or more buoys are used to keep the feed spreader floating in the water surface. It is also known an embodiment were the feed spreader is submerged under water. In that case, the feed is mixed with water in the tubular from the silo, so that a mixture of feed and water are spread out into the aquaculture pen.
How efficient the feeding process is depends on different factors. Specific locational features of the sea or the fjords, seasonal changes, weather parameters such as light condition, temperatures in the water, wind direction, wind power, water current and water direction etc. is examples of such factors. For instance, when the temperature in the top layer of the water is warm, the fish tend to retreat to deeper water, typically minus 15m meters from the water surface. This situation is demanding for the feeding process when the feeding is done above the water surface. Large portions of feed provided into the aquaculture pen will exit the sides of the cage before it reaches the fish. This is especially dependent on other additional weather parameters such as water current. In some cages, the feed sinks straight through the sides or to the bottom of the aquaculture pens and creates waste in the ocean, in addition to contribute to excess food production and waste. For closed aquaculture pens, the feed that sinks to the bottom together with other waste produces a toxic environment for the breeding fish. This is a huge problem for the fish farmers.
A common feed used for farmed fish today is pellets. They vary in size, weight and nutrition content. This will determine their sinking properties in the water in addition to wind power, wind direction, water current and water direction, the pressure in the tubular, diameter of the outlet etc. Exposed to rough conditions, such as high pressure in the tubular, will break the pellets. This can damage the feed spreader and lead to insufficient feeding of the fish. The amount of feed that will be eaten by the fish is dependent on the combination of these properties among others. A measurement tool used to determine how much feed is needed for a fish to gain 1 kg of weight is called the feed factor. It is an object for the farmer to keep the feed factor as low as possible.
Today, significant portions of the feed sinks straight through the aquaculture pen or is collected at the bottom of closed cages without being caught by the fish.
Consequently, farmers needs to add more feed to the fish farm then necessary to get the fish to grow sufficiently. The farmers aim to provide enough feed for the breeding fish while at the same time keeping the level of feed low to keep production costs and the environmental damage to a minimum. Thus, there is a need for a new system and method of how to distribute the feed in a more efficient way to reduce the feed factor of the fish farms.
Prior art related to the filed can be found in the following documents:
NO343101B1 discloses a combined device for operation and maintenance of a sea pen, comprises a floating substantially cylindrically shaped housing with deck and hand rail.
NO20050845L discloses a device and a method for controlled spreading of feed in a aquaculture pen.
NO20170825A1 discloses an aquaculture feeding apparatus.
Objects of the present invention
The main object of the inventions is to provide a system and a method for adjusting the position of a feed spreader within an aquaculture pen to be able to provide feed in the aquaculture pen in a more efficient way.
An object of the invention is to provide a system where the feed spreader is adjustable in the aquaculture pen above the water surface, or in the water surface or submerged in the water.
There is an object to provide a system that can be used in an open aquaculture pen, closed aquaculture pen, semi- open aquaculture pen, a steel tank or in other suitable breeding bodies for marine organisms.
The present invention is based on the principle of calculating a preferred position for a feed spreader within an aquaculture pen based on measured weather parameters.
Another principle of the invention is to use machine learning for predetermine the preferred position and move the feed spreader accordingly when the system is automatically operated.
It is an object of the present invention to provide a feeding system where the position of the feed spreader is manually adjustable.
Another object of the invention is to provide a feeding system where the position of the feed spreader is adjusted by a motor configuration.
A major object of the inventions is to provide a system that can be automatically operated at an offsite location, such as a growth centre on shore.
There is an object of the invention is to provide a feeding system where a preferred position of the feed spreader is calculated by weather parameters measured from sensors at the location.
Yet, there is an object of the invention is to provide a feeding system where the preferred position of the feed spreader is calculated by weather parameters obtained from other weather stations.
A main objective of the present invention is to provide a method for adjusting the feed spreader according to the preferred position calculated from weather parameters obtained from measuring sensor or weather stations.
Another object is to provide a method that recalculates the preferred position at fixed time intervals and move the feed spreader according to the new position.
There is an objective to provide a method that recalculates the preferred position when changes in a weather parameter exceeds a defined limit and move the feed spreader accordingly to the new position.
Another object of the present invention is to provide a method that can be operated at an offsite location such as at a growth centre onshore.
There is an objective of the invention to provide a method that is uses Wi-Fi or an internet connection to operate the system.
Summary of the invention
According to the invention, it is provided a feeding system for feeding marine organisms within an aquaculture pen in a fish farm. The feeding system comprises a floating feed spreader and the feed spreader having an outlet for the feed. The feed spreader is connected to an aquaculture pen ring by at least one adjustable fastening means, and one or more fastening means are positioned under water for submerging the feed spreader. The feed spreader is connected to a feed station by a tubular.
The one or more fastening means can comprise a rope connected to a winch at the aquaculture pen ring and to the feed spreader at the other end.
The one or more fastening means can comprises a rope connected to a winch at the feed spreader and to the aquaculture pen ring at the other end.
One or more of the winches can be motor driven or manually driven.
The system can comprise one or more sensors for measuring one or more weather parameters.
The system can comprise a control unit for receiving one or more weather parameters and operating the one or more winches.
The invention also relates to a method for operating the feeding system for feeding marine organisms within an aquaculture pen in a fish farm, the feeding system comprises a floating feed spreader, the feed spreader having an outlet for the feed, wherein the spreader is moved to a preferred position by adjusting at least one adjustable fastening means. The feed spreader is connected to the feed station by a tubular and in that one or more fastening means are positioned under water for submerging the feed spreader, and where the preferred position is calculated from at least one weather parameter.
The one or more fastening means can comprise a rope connected to a winch at the aquaculture pen ring and to the feed spreader at the other end.
The one or more fastening means can comprises a rope connected to a winch at the feed spreader and to the aquaculture pen ring at the other end.
Where one or more of the winches are motor driven or manually driven
The weather parameter can be wind power or wind direction, or water current or water direction, or water temperature, or light conditions or any combination thereof.
The weather parameters can be obtained from measurements from one or more sensors or from weather stations, or a combination of both.
The system can be automatically driven by a control unit that calculates a preferred position and operates the one or more motor driven winches to pull or release the ropes to move the feed spreader to said position.
The preferred position can be recalculated and the feed spreader can be moved accordingly, at fixed time intervals.
The preferred position can be recalculated and the feed spreader (4) can be moved accordingly, when a weather parameter changes above a set level.
The control unit can use machine learning to predetermine the preferred position for the feed spreader and can move the feed spreader accordingly.
Description of the diagrams
Embodiments of the present invention will now be described, by way of example only, with reference to the following diagrams wherein:
Figure 1 shows an overview of the fish farm with different aquaculture pens connected to a common feed station.
Figure 2 shows an embodiment of the invention where a feed spreader is located within an aquaculture pen, attached to winch rope configuration with winches on the cage ring.
Figure 3 shows another embodiment of the invention where the feed spreader is located within an aquaculture pen, attached to winch rope configuration with winches positioned on the feed spreader.
Description of preferred embodiments of the invention
Reference is made to figure 1, which shows an overview of the fish farm 10. In this embodiment, the fish farm 10 comprises six aquaculture pens 1. In the middle of each aquaculture pen 1 there is positioned a floating feed spreader 4. In this configuration, the feed spreader 4 is kept within the aquaculture pen by three ropes 5 connected to a winch 2. The invention is not limited to three winch rope configurations, as this can be done with one or more of said configurations. The winch 2 is connected to the aquaculture pen ring 3 and the rope is connected to the feed spreader 4. The feed spreader is kept floating in the water surface by means of doing so, such as buoys or ropes (not shown). Alternatively, the feed spreader can be kept above the water surface by means of doing so. In another alternative embodiment, the feed spreader may also be submerged under water. In such a configuration there may be one or more ropes 5 under water connected to the feed spreader 4 for moving it’s position lengthwise and depth wise. This can be in addition to other winch rope configurations. The winches 2 can for instance be connected to the feed spreader 4 or to a position under water, such as at the bottom of the net cage, or at another suitable position under water. This can for instance be at a preferred depth for the breeding fish at a certain location in the fjords or the sea, or at a level that is beneficial for the breeding fish for instance at certain water temperatures. In this embodiment, feed is mixed with water in the tubular 6 from the feed station 9.
When the feed spreader is above or at the water surface, the feed is blown out from the feed station 9 together with air. The feed spreader 4 have an outlet for the feed. In one embodiment this is arranged for rotation about its own axis to spread the feed in a circle around itself. The outlet may be shaped like a nozzle, cone, funnel or ring. The outlet can point in a direction parallel to the water surface or at an angle upwards or downwards. In a common embodiment the outlet is protruding at a height above the water surface, but the invention is not limited to this. The feed spreader 4 is connected to a common feed station 9 by a tubular 6. In this context a tubular is a tube shaped body, a duct, a pipe, pipeline, or a hollow body for transportation of feed. The tubular can be either flexible, firm or semi-flexible. In the embodiment shown in figure 1, six separate tubulars 6 are running out from the feed station 9 and branch off to six separate aquaculture pens 1. Other embodiments of this configuration is also possible, with one or more common tubulars 6 from the feed station 9 that branched off to more than one aquaculture pen, etc. The feed station 9 may contain one or more silos (not shown) with feed of different properties for the fish at different stages in their life cycle. The feeding system further comprises blows for blowing the feed from the feed station and out through the outlet of the feed spreader (not shown). By stopping the blowers, the feeding is stopped or started for each aquaculture pen. In this system, valves may be used for shutting out one or more aquaculture pens from the feeding process. This is usually operated at the feed station 9 or by stopping/starting the blower.
An aquaculture pen in this invention defined as an open water-permeable aquaculture pen, or semi-open water permeable aquaculture pen, or closed waterimpermeable aquaculture pen, or a steel tank or a rearing tank, or another suitable body for farming marine organisms. The feed used in this system comprises pellets and other types of feed used for feeding marine organisms.
An alternative configuration is shown in figure 3, where the winches 2 are connected to the feed spreader 4 and to the rope 5 is connected to the aquaculture pen ring 3.
The winches 2 is operated by motors in a preferred embodiment. Otherwise, the winches 2 are manually driven. According to the invention, a rope may be a fibre rope, a wire, a chain or the like.
In a preferred embodiment, the system further comprises one or more sensors for measuring different weather parameters such as wind power, wind direction, water current, water direction, water temperature, light emission and so on. The sensors are positioned in the fish farm 10, at the feed station 9 or at another convenient location above or under water. The system further comprises a control unit that receives weather parameters from the one or more sensors and with a computer program calculates a preferred position for the feed spreader 4 according to this data. In an automated embodiment of the invention, the control unit operates the winches 2, so that the feed spreader 4 is moved automatically to the preferred position by the motors. Access to the preferred position will be limited by the number of rope winch configurations. If a feeding system have three such configurations, the ropes 5 connected to the feed spreader 4 can be pulled or released in any combination between the three connection points in the aquaculture pen 3. If for instance, the system only have one rope winch configuration this limits the possible preferred positions for the feed spreader 4 to be along this line. The system will calculate a preferred position according to the possible options by the rope winch configurations. If there are for instance several rope winch configurations there will be a lot more combinations possible for pulling or releasing the different ropes 5 by the different winches 2 to position the feed spreader 4 to the preferred position.
When the system is manually operated, the fish farmer moves the feed spreader 4 to the desired position, by adjusting the ropes 5 by pulling or realising the winch 2. Based on know-how of how the feed will drift in the water at different weather conditions, the fish farmer will move the feed spreader 4 to the preferred position. The weather condition may be evaluated by the weather parameters from the sensors, or from other weather stations or weather forecasting means. Manual operation may also be necessary during maintenance and service of the aquaculture pen or the system, or in other situations where the feed spreader needs to be manually operated.
The automatic operation of the feed system may be controlled from the feed station or at another location in the fish farm 10. In a preferred embodiment according to the invention, the feeding system is operated automatically at a distant location such as at a growth centre onshore. This enables the fish farmer to control the feeding process from different locations. In yet another embodiment, the control system can be operated from any location with internet connection. In an automatic operation mode the system can move the feed spreader 4 continually or in predetermined time intervals. The system can also be configured so that the position of the feed spreader 4 is changed only when changes in a weather parameter exceed a set limit.
To illustrated how the invention works: If the wind direction and the water current is coming from the north, the feed spreader 4 will be directed from the centre of the aquaculture pen 1 to a position further north of the aquaculture pen 1. This will extend the floating time of the feed within the aquaculture pen 1. The computer program in the control unit may adjust for the pressure in the tubular 6, the angle of the outlet, the weather parameters and other relevant parameters concerning the particular location for the fish farm. By moving the feed spreader 4 to the preferred position also ensures that the north end of the cage is covered within the feed-range of the feed spreader. Compared to the state of art technology where the feed spreader is fixed at the centre of the aquaculture pen, a larger portion of the feed is kept floating for a longer time within the aquaculture pen. Thus, covering a larger area within the aquaculture pen 1 with feed.
Claims (16)
1. A feeding system for feeding marine organisms within an aquaculture pen (1) in a fish farm (10) comprising a floating feed spreader (4), the feed spreader (4) having an outlet for the feed wherein the feed spreader (4) is connected to an aquaculture pen ring (3) by at least one adjustable fastening means, characterized in that one or more fastening means are positioned under water for submerging the feed spreader (4), and the feed spreader is connected to a feed station (9) by a tubular (6).
2. A feeding system according to claim 1 wherein the one or more fastening means comprises a rope (5) connected to a winch (2) at the aquaculture pen ring (3) and to the feed spreader (4) at the other end.
3. A feeding system according to claim 1 wherein the one or more fastening means comprises a rope (5) connected to a winch (2) at the feed spreader (4) and to the aquaculture pen ring (3) at the other end.
4. A feeding system according to any of the preceding claims, where one or more of the winches (2) are motor driven or manually driven.
5. A feeding system according to any of the preceding claims, wherein the system comprises one or more sensors for measuring one or more weather parameters.
6. A feeding system according to any of the preceding claims, wherein the system comprises a control unit for receiving one or more weather parameters and operating the one or more winches (2).
7. Method for operating the feeding system according to any of the claims 1-6, for feeding marine organisms within an aquaculture pen (1) in a fish farm (10), the feeding system comprises a floating feed spreader (4), the feed spreader (4) having an outlet for the feed, wherein the spreader (4) is moved to a preferred position by adjusting at least one adjustable fastening means, characterized in that the feed spreader is connected to the feed station (9) by a tubular (6) and in that one or more fastening means are positioned under water for submerging the feed spreader (4), and where the preferred position is calculated from at least one weather parameter.
8. Method for operating a feeding system according to claim 7 wherein the one or more fastening means comprises a rope (5) connected to a winch (2) at the aquaculture pen ring (3) and to the feed spreader (4) at the other end.
9. Method for operating a feeding system according to claim 7, wherein the one or more fastening means comprises a rope (5) connected to a winch (2) at the feed spreader (4) and to the aquaculture pen ring (3) at the other end.
10. Method for operating a feeding system according to any of the claims 7-9, where one or more of the winches (2) are motor driven or manually driven
11. Method according to claim 7, wherein the weather parameter is wind power or wind direction, or water current or water direction, or water temperature, or light conditions or any combination thereof.
12. Method according to claim 11, wherein the weather parameters are obtained from measurements from one or more sensors or from weather stations, or a combination of both.
13. Method according to any of claims 7-12, wherein the system is automatically driven by a control unit that calculates a preferred position and operates the one or more motor driven winches (2) to pull or release the ropes (5) to move the feed spreader (4) to said position.
14. Method according to claim any of claim 7-13, wherein the preferred position is recalculated and the feed spreader (4) is moved accordingly, at fixed time intervals.
15. Method according to any of claim 7-14, wherein the preferred position is recalculated and the feed spreader (4) is moved accordingly, when a weather parameter changes above a set level.
16. Method according to any of claim 7-15, wherein the control unit uses machine learning to predetermine the preferred position for the feed spreader (4) and move the feed spreader (4) accordingly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20190851A NO345198B1 (en) | 2019-07-05 | 2019-07-05 | Positioning of a Feed Spreader in aquaculture pen for farming of marine organisms |
| PCT/NO2020/050189 WO2021006744A1 (en) | 2019-07-05 | 2020-07-03 | System and method for positioning of a feed spreader in aquaculture pen for faming of marine organisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20190851A NO345198B1 (en) | 2019-07-05 | 2019-07-05 | Positioning of a Feed Spreader in aquaculture pen for farming of marine organisms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20190851A1 NO20190851A1 (en) | 2020-11-02 |
| NO345198B1 true NO345198B1 (en) | 2020-11-02 |
Family
ID=73451191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20190851A NO345198B1 (en) | 2019-07-05 | 2019-07-05 | Positioning of a Feed Spreader in aquaculture pen for farming of marine organisms |
Country Status (2)
| Country | Link |
|---|---|
| NO (1) | NO345198B1 (en) |
| WO (1) | WO2021006744A1 (en) |
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| NO20050845L (en) * | 2005-02-16 | 2006-08-17 | Gaelforce Marine Technology As | Device and method for controlled distribution of feed in breeding facilities |
| NO20170825A1 (en) * | 2014-10-20 | 2017-05-19 | Seafarm Products As | Method and apparatus for aquaculture feeding |
| NO343101B1 (en) * | 2018-02-27 | 2018-11-05 | Nauplius Solutions As | Device for operation and maintenance of farmed cows. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2564695B1 (en) * | 1984-05-28 | 1987-04-03 | Dieppe Sous Traitants Arrondis | AQUACULTURE FACILITY AT SEA |
| NO341213B1 (en) * | 2016-05-25 | 2017-09-11 | Einar Brattland | Apparatus for supplying feed underwater to a liquid aquaculture cage |
| KR102019230B1 (en) * | 2017-05-26 | 2019-09-06 | 더블루씨팜 어업회사법인 주식회사 | feeding system for confining net |
-
2019
- 2019-07-05 NO NO20190851A patent/NO345198B1/en unknown
-
2020
- 2020-07-03 WO PCT/NO2020/050189 patent/WO2021006744A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20050845L (en) * | 2005-02-16 | 2006-08-17 | Gaelforce Marine Technology As | Device and method for controlled distribution of feed in breeding facilities |
| NO20170825A1 (en) * | 2014-10-20 | 2017-05-19 | Seafarm Products As | Method and apparatus for aquaculture feeding |
| NO343101B1 (en) * | 2018-02-27 | 2018-11-05 | Nauplius Solutions As | Device for operation and maintenance of farmed cows. |
Also Published As
| Publication number | Publication date |
|---|---|
| NO20190851A1 (en) | 2020-11-02 |
| WO2021006744A1 (en) | 2021-01-14 |
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