EP3965564A1 - Unit, building and method for rearing insect larvae - Google Patents
Unit, building and method for rearing insect larvaeInfo
- Publication number
- EP3965564A1 EP3965564A1 EP20740686.9A EP20740686A EP3965564A1 EP 3965564 A1 EP3965564 A1 EP 3965564A1 EP 20740686 A EP20740686 A EP 20740686A EP 3965564 A1 EP3965564 A1 EP 3965564A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rearing
- larvae
- tray
- plate
- trays
- 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- Withdrawn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
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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
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
Definitions
- the invention relates to the field of rearing insect larvae.
- the invention relates to an insect larval rearing unit, an insect larval rearing building comprising one or more units and a method for rearing insect larvae.
- insects are ectothermic organisms, they do not have the capacity to regulate their temperature and therefore depend on the external environment to regulate themselves.
- the larvae When feeding, the larvae give off a lot of heat, which can pose a risk to the colony if the temperature rises above 50 °.
- the larvae may or may not directly release energy in the form of heat and emit ammonia gas (NH 3 ). Heat releases are responsible for changes in environmental conditions both in terms of temperature and humidity in the rearing area. These temperature variations can take the form of thermal runaway that could endanger the health and even the survival of the colony.
- the document EP2144859 describes an installation intended to treat organic waste using insect larvae.
- the installation comprises a plurality of flat reaction vessels stacked on top of each other, and separated from each other by an air space of a few cm.
- One of the side walls of the installation, adjacent to a side edge of the reaction tanks, called the ventilation wall, is provided with openings leading to the air spaces separating the tanks.
- An air circulation system allows the circulation of purified and thermoregulated air from the openings in the ventilation wall of the installation, through the air spaces separating the tanks.
- a turbine also makes it possible to extract the air contaminated with ammonia.
- Document US2015223496 proposes a system for the production of organic fertilizer and food from the treatment of animal droppings by an insect belonging to the order Diptera such as Musca domestica (house fly), Boettcherisca peregrine and Tabanus.
- a fan is operated to blow heated air, so that the insect larvae are dislodged from a first rearing processing storage unit to a second storage unit facing the first breeding treatment storage unit.
- such a system provides thermoregulation by controlling the air temperature, which consumes energy and is unsuitable for intensive insect culture.
- EP2986107 describes a method and system for raising insects using a plurality of individual trays filled, at least in part, with a substrate containing nutrient material and immature phases of insects.
- the lockers are installed in a climatic zone including a ventilation system.
- a conveyor system makes it possible to recover the lockers from the climatic zone and to return them to it.
- an observation system to obtain observations on the substrate and the larvae and, downstream of the latter, a station for distributing nutrient material.
- the method comprises the steps of aerating the nutrient substrate and the immature phases of insects with the aeration system, when the traps are placed in the climatic zone, and periodically recovering, using the conveying system, at at least one bin of the climatic zone to send it to the observation system in order to obtain an observation of the substrate and of the immature phases of insects contained in said at least one bin, and to determine a need for addition of an amount of additional nutritious raw material before returning it to the climatic zone or a reason to harvest insect larvae.
- the existing industrial installations for the rearing of insect larvae essentially consist in aligning and superimposing plastic containers, the standard dimensions of which are generally 60 x 40 cm, in a building.
- Such a superposition of trays saves space and maximizes production yields.
- the trays are moved during the larval development cycle to a centralized power source, control means and harvesting device.
- the existing facilities seek to optimize production volumes per square meter by over-densifying the farms on multiple vertical levels and a reduced surface area.
- over-densification requires a very high energy consumption in order to be able to maintain optimal environmental conditions for the development of the larvae.
- the deconcentration of the atmosphere in ammonia and the maintenance of an optimum temperature and degree of hygrometry, in the room in which the plastic containers are stored are carried out by treatment of the ambient air and a supply of new and thermoregulated air.
- the ambient air in the breeding areas is constantly renewed and thermoregulated to reach a predetermined temperature and humidity level. It is necessary to maintain the entire atmosphere of these zones in optimal conditions and therefore to heat or cool the entire volume of the room in which the bins are stored, while providing a large quantity of fresh air in order to deconcentrate the air. atmosphere stale in ammonia. Consequently, the air treated in temperature, by heating or cooling, and in hygrometry, by humidification or dehumidification, is directly evacuated to deconcentrate it from the ambient ammonia. The energy used to treat the incoming air is therefore directly lost when it is evacuated. These installations are therefore very energy intensive.
- the existing industrial installations for rearing insect larvae therefore have the drawback of being over-densified and very energy-intensive in order to be able to maintain optimal environmental conditions for the development of the colony and to obtain an optimal production yield.
- the rearing tanks intended to be stacked on top of each other are sized so as to be able to contain larvae at the end of the cycle, so that a large surface area of the tanks is not used during the first few years. stages of larval development. This unused surface nevertheless occupies a volume which is also thermoregulated.
- the side walls of the trays make air circulation more complex, so that heat and humidity tend to stagnate in certain areas, making thermoregulation more complex to carry out. [Technical problem]
- the aim of the invention is therefore to remedy at least one of the aforementioned drawbacks of the prior art.
- the invention aims in particular to provide a simple and effective alternative solution for optimizing the rearing surface, in order to avoid having to thermoregulate a volume of air corresponding to unused surfaces.
- the invention further aims to provide a thermoregulation solution that is simple to implement, efficient and much less energy intensive than existing solutions.
- the invention further aims to facilitate and accelerate the breeding process.
- the invention relates to a unit for rearing insect larvae comprising at least one row of at least two superimposed trays, said unit being characterized in that said trays have rearing surfaces of dimensions different.
- the invention relates to a unit for rearing insect larvae comprising at least one row of at least two superimposed trays, said unit being characterized in that said trays have rearing surfaces of dimensions different and in that each tray comprises a thermoregulation means of its rearing surface.
- said means for thermoregulating the rearing surface operates mainly by radiation and even more preferably each plate is a plate thermoregulated by a heat transfer fluid.
- the dimensions of the rearing areas are adapted to the stage of development of the larvae, so that the use of the rearing areas of the trays is optimized.
- the trays have rearing surfaces adapted to the stage of development of the larvae that they welcome, that is to say they have dimensions of growing surfaces that increase according to the stage of development of the larvae. that they are intended to accommodate. This constitutes a simple and effective solution to optimize the rearing surface and makes it possible not to thermoregulate the ambient air.
- the combination of the growing surfaces of the growing trays with a thermoregulation means integrated into the tray makes it possible to reduce the energy requirements during breeding, in comparison for example with systems encumbered by homogeneous rearing surfaces limiting the diffusion of thermal regulation by convection.
- the insect larval rearing unit may optionally include one or more of the following characteristics, alone or in combination:
- the trays have increasing breeding surfaces and are arranged in a staircase, the tray with the smallest breeding surface being disposed at the top of the superposition.
- the trays are aligned on one side. This facilitates the transfer of larvae by gravity and optimizes the rearing process.
- the ratio between the rearing area values of two consecutive trays of the superposition is between 1, 2 and 2.2;
- Such ratio values have been identified as suitable for breeding insects by stage of development.
- the rearing surface of each tray is dimensioned such that it corresponds to the surface necessary for the proper development of the larvae according to their stage of development, during their growth cycle;
- each tray is divided by removable partitions, into as many parts as there are stages of development of the insect larvae to be reared, and in that the removable partitions are retracted as the stages of development of the larvae so that the rearing area of the tray increases with the stage of larval development.
- This allows to use only a single tray format whose rearing area will be modulated according to the stage of development of the larvae that the tray is intended to receive.
- the breeding surface is optimized while standardizing the trays.
- the removable divider can be arranged on the opposite side of the trays alignment length so as to promote gravity transfer to the tray surface below.
- the superimposed trays of the same row are spaced with a minimum distance height of 10 centimeters, preferably a minimum distance height of 20 centimeters, so as not to obstruct the circulation of the air flow promoting better ventilation in order to extract any potential excess humidity or gases such as ammonia generated by the breeding process
- the unit comprises two rows arranged longitudinally facing each other, separated by a floor, each row comprising at least two superimposed trays.
- the unit includes a movable mounted floor.
- each row includes a superposition of at least two trays, the last tray with the largest surface being placed on the ground.
- the last tray can, for example where appropriate, be positioned under the movable floor separating the two rows facing each other.
- Each plate, located above the last lower plate of the superposition, comprises a transfer device arranged to allow the transfer of larvae, by gravity, into the immediately lower plate.
- a transfer device can be individual for each plate of the superposition.
- a transfer device can be comprehensive and be arranged to allow the transfer of larvae, by gravity, into the immediately lower plateau of several rearing units. This speeds up and automates the breeding process.
- Each plate located above the last lower plate of the superposition, comprises a movable wall arranged to allow the transfer of larvae, by gravity, into the immediately lower plate.
- a movable wall preferably a movable side wall, makes it possible to optimize the rearing surface at the stage of development of the insect, to limit the energy consumption of thermoregulation to only the surfaces exploited, to adjust this thermoregulation independently. for each tray, to speed up and automate the breeding process.
- the movable wall comprises closure means, for example magnetized, ensuring the sealing of the rearing surface when said movable wall is in the closed position. This makes it possible to properly segment the growth phases for a homogeneity of the larvae harvested at the end of the process.
- each plate, located above the last lower plate of the superposition further comprises a scraper movable in translation, capable of transferring larvae to a plate located just below in the overlay.
- the scraper movable in translation is able to transfer larvae to a plate located just below in the superposition when the movable wall is in the open position.
- the last plate of the superposition comprises a mechanized harvesting device, preferably mobile in translation along the longitudinal axis of said last plate.
- Each tray comprises a plurality of breeding modules connected to each other along the longitudinal axis of said tray.
- Each tray can be composed of a plurality of modules connected to each other along the longitudinal axis of said tray.
- Each component module of each plate located above the last plate of the superposition comprises an elementary scraper, said elementary scrapers of a plate being synchronized with one another to form said scraper of said plate. This speeds up and automates the breeding process.
- Each constituent module of each plate located above the last plate of the superposition comprises an elementary movable side wall, said elementary movable walls of a tray being synchronized with one another to form said movable side wall of said tray. This speeds up and automates the breeding process.
- the last plate of the superposition comprises a scraper-vacuum cleaner, preferably mobile in translation along the longitudinal axis of said plate, connected to a suction system via a network of hoses.
- a mobile scraper-vacuum can speed up the harvesting process.
- the unit comprises at least one temperature measuring device, preferably configured to measure the temperature of the rearing surface of each tray.
- the temperature measuring device corresponds to a temperature probe
- each plate comprises at least one temperature probe. This improves the breeding conditions.
- the temperature measuring device corresponds to a temperature probe, each plate comprises at least one temperature probe and a means for thermoregulating its rearing surface.
- thermoregulation means comprises at least one pipe arranged linearly and configured to allow the flow of a heat transfer fluid, said pipe being arranged under the rearing surface, said heat transfer fluid allowing energy transfer with the surface of breeding. This makes the installation less energy intensive
- thermoregulation means comprises pipes arranged linearly and configured to allow the flow of a heat transfer fluid, said pipes being arranged in a cavity, formed in the plate and filled with a liquid or a thermally conductive material, said heat transfer fluid allowing energy transfer with the rearing surface by means of said liquid or thermal conductive material. This helps to make the installation less energy consuming.
- thermoregulation means comprises pipes arranged linearly and configured to allow the flow of a heat transfer fluid, said pipes being covered with a concrete cap forming the rearing surface with which the heat transfer fluid transfers energy .
- the process consumes less energy.
- thermoregulation means comprising pipes covered with a concrete screed is preferably installed on the lower rearing platform placed on the ground;
- thermoregulation means comprising pipes arranged in a cavity filled with a liquid or a thermal conductive material is preferably installed on the rearing trays located above the lower rearing plate of the superposition.
- the opening and closing of the movable wall of each tray are controlled by a control device for the transfer of larvae, the control of the opening of the movable wall and the scraper being performed as a function of temperature values measured on the rearing surface of each tray, of a quantity of feed product distributed and as a function of time.
- each tray is provided, on their upper end located opposite the rearing surface of the tray, with an inverted "U” shaped rim.
- This rim advantageously allows the crawling larvae to fall by gravity onto the rearing surface, thus preventing the latter from escaping.
- the subject of the invention is also a building for breeding insect larvae, characterized in that it comprises at least one unit for breeding insect larvae as described above.
- the latter may optionally include one or more of the following characteristics, alone or in combination:
- a larval feed product distribution tank and a feed control device, configured to control the conveying of the contents of said tank to the trays of each unit as a function of time and / or quantity of larvae and / or their nutritional requirements.
- thermoregulation control device configured to control a thermoregulation means of each tray of each unit, independently, as a function of temperature values measured on the rearing surface of each tray and of fluid flow values coolant flowing in pipes of said thermoregulation means.
- a larvae transfer control device configured to control the opening and closing of a movable wall of one or more trays of each unit and to control, synchronously with the opening of the mobile wall, a transfer device and in that the control of the opening of the mobile wall and of the transfer device is carried out as a function of the stage of development of the larvae, of temperature values measured on the rearing surface of each tray, the amount of feed product dispensed and time.
- the transfer of the larvae may also include the transfer of the substrate.
- a larvae transfer control device configured to control the opening and closing of a movable wall of one or more trays of each unit and to control, synchronously with the opening of the movable wall, a scraper of the corresponding tray and in that the control of the opening of the movable wall and of the scraper is carried out as a function of temperature values measured on the rearing surface of each tray, of the quantity of product power supply distributed and as a function of time.
- the transfer of the larvae may also include the transfer of the substrate.
- It further comprises a control device for harvesting mature larvae capable on the one hand of actuating a suction system coupled to a hose or to a network of hoses connected to a scraper-suction of a lower plate and of on the other hand to actuate said scraper-vacuum in translation along the longitudinal axis of said associated lower plate.
- a control device for harvesting mature larvae capable on the one hand of actuating a suction system coupled to a hose or to a network of hoses connected to a scraper-suction of a lower plate and of on the other hand to actuate said scraper-vacuum in translation along the longitudinal axis of said associated lower plate.
- It further comprises a ventilation control device able to actuate the operation of extractors and the opening or closing of a reclosable air inlet, according to values recorded by at least one device for measuring the temperature, the concentration of ammonia in the gas phase and the level of humidity.
- thermoregulation controlling the transfer of larvae, controlling the harvesting of larvae, controlling aeration and / or controlling feeding are combined in a single automatic supervision device.
- the invention finally relates to a method for rearing insect larvae implemented in at least one rearing unit described above, characterized in that it comprises the following steps:
- Figure 1 a cross-sectional diagram of an insect larval rearing unit according to a preferred embodiment of the invention
- Figure 2 a cross-sectional diagram of an insect larvae rearing unit with a movable floor made according to an embodiment different from that of Figure 1,
- FIG. 3 a perspective diagram of a rearing module used for making a rearing tray according to one embodiment, said module being equipped with an elementary scraper and an elementary movable wall,
- FIG. 6 a diagram seen in cross section of a building for rearing insect larvae according to a preferred embodiment of the invention.
- FIG. 7 a schematic representation of the method for rearing insect larvae implemented in at least one rearing unit according to the invention.
- side wall of a tray is understood to mean the vertical wall located on one side of a tray, and more particularly the wall located on the longitudinal side of a tray.
- module designates a juxtaposable element, combinable with other elements of the same nature, and contributing to the same function.
- transverse refers to an axis that passes through a space, perpendicular to its greatest dimension, that is, perpendicular to its length.
- the term "rearing area” as used means an area, in particular a tray area, intended for the growth of insect larvae.
- the rearing area may correspond to part or all of the area of a tray suitable for the growth of larvae.
- a breeding unit according to the invention comprises at least one row of at least two superimposed trays.
- Such a unit 1000 for rearing insect larvae comprises at least one row 1001 of at least two superimposed trays.
- a row 1001 comprises three superimposed trays referenced 1100, 1200, 1300.
- the number of superimposed trays is not limited. This number is defined beforehand according to the growth cycle of the insect larvae to be reared. Indeed, depending on the growth cycle of the larvae, we can determine the number of stages of development of the larvae. For example, a tray will be dedicated to a particular stage of larval development.
- the superimposed trays 1100, 1200, 1300 each have a total surface which can be divided into a rearing surface and a neutral surface.
- the breeding areas trays are of different dimensions and adapted to the stage of development of the larvae they contain.
- the trays have increasing rearing surfaces and are arranged in a staircase, the plate having the smallest rearing surface being arranged at the top of the superposition.
- the superposition of the plates coupled with their thermoregulation makes it possible to respond to the problems generated by conventional systems which cause obstacles to thermal regulation by convection or overconsumption of energy. Indeed, for the same larval production, a system according to the invention will have a more equivalent occupancy volume, aeraulics and reduced energy consumption. Table 1 below shows the results of the comparison of energy consumption between a conventional installation and an installation according to the invention.
- the breeding units according to the invention allow a reduction of a factor of 6.5 compared to breeding in vats with thermoregulation by convection.
- the capital required for the construction of breeding units according to the invention and the associated building is reduced by a factor of approximately 10.
- each tray has only one rearing surface, that is to say that the rearing surface of a tray covers the entire surface. the surface of said plate. In this way, all surfaces are occupied by the larvae and there is no waste of surface that would be unused.
- the trays each have a rearing surface suitable for a predetermined stage of development of the larvae associated with them, they advantageously remain fixed throughout the larval growth cycle and it is the larvae which are moved from a rearing plate to another during their development.
- the smallest larvae are placed in the tray 1100 located at the top of the superposition and, once the larvae have reached the end of their first stage of development, they are transferred, by gravity, in the plateau 1200 immediately below in the superposition, said lower plateau 1200 having a surface greater than the surface of the first plateau 1100 and adapted to the second stage of development of the larvae, and so on until the last stage of development and last plateau 1300 of breeding.
- the ratio between the rearing area values of two consecutive trays of the superposition is between 2.2 and 1, 2. More preferably, the ratio is between 2 and 1.5.
- the length of the shelves is the same for all the shelves in the stack.
- the trays have a great length.
- they are made in a modular fashion.
- the breeding trays consist of a plurality of breeding modules attached to each other by their transverse wall, so as to form very long trays. This length, of several tens of meters, will depend on the quantity of larvae to be reared. It could be between 10 and 300m for example.
- the modules have for example a length of 3 meters each and 14 modules are connected to each other to form breeding trays 42 meters long.
- a breeding module, referenced 1200M is shown schematically according to different views in Figures 3 to 5.
- the width of each tray of a superposition of N trays can be expressed using the following formula: in which N represents the total number of trays, IN represents the width of the last tray N located at the bottom of the superposition, l n represents the width of a tray n, n being between 1 and N, the row 1 tray being located at the top of the overlay while the rank N board is located at the bottom of the overlay.
- the trays are spaced apart from each other by a height of at least 10cm, preferably at least 20cm.
- This height corresponds to the space between the upper edge of the side wall of a tray and the lower wall (referenced 121 1 in Figure 4) of the tray located immediately above.
- This spacing contributes, like other features of the present invention, to better larval growth by acting on aeration and thermoregulation.
- a unit 1000 for rearing insect larvae comprises two rows 1001, 1002 of at least two superimposed trays each, arranged longitudinally facing one another and separated by a floor 1400.
- the space between the two rows allows the passage of production personnel who can move on the floor above the last tray and, favorably, a distribution tank of larval feed. Such a tank is described in more detail in the remainder of the description.
- a very advantageous embodiment consists in placing the last plate 1300 of each row, the surface of which is the largest, on the ground 1003 and under the floor 1400 separating the two rows 1001, 1002.
- the floor 1400 for separating the two row is movably mounted so that it can be opened to allow access to the lower tray 1300.
- a first embodiment of the movable floor consists in producing a floor mounted on a central beam 1430, the height of which is substantially flush with the upper end of the side walls of each lower plate 1300.
- the floor is then configured to be movable in rotation about an axis in order to be able to pivot and to allow access to the lower plate 1300, in particular during the distribution of the feed product, for example.
- This axis can for example take the form of a hinge and is preferably arranged at the upper end of the central beam 1430 supporting the floor 1400, so as to articulate each longitudinal part 1410, 1420 of the floor, located on either side of this central beam 1430.
- each part 1410, 1420 of the floor is mounted to pivot towards the outside of the plate 1300, according to the direction of the arrows referenced F1 and F2.
- a second possible embodiment of the movable floor consists in producing a movable floor in translation, as shown in Figure 2.
- the transverse walls of the floor can be mounted to slide along guides referenced 1401, formed by rods. for example and fixed substantially flush with the upper end of the side walls of each plate 1300.
- the floor 1400 separating two rows and located above each lower plate 1300 opens in the middle, each longitudinal part 1440 , 1450 of the sliding floor along the guides 1401 in a translational movement towards the opposite longitudinal wall of the associated lower plate 1300, in the direction of the arrows referenced respectively F6 and F7 in Figure 2.
- Such a retractable floor has the advantage of allowing human intervention when necessary and allows an operator to easily reach the trays 1100 located at the top of the overlay for possible intervention.
- the opening of the floor also allows access to the lower 1300 trays for possible intervention and / or to allow gravity distribution of the feed product by means of a distribution tank.
- the trays are made of a metal, a metal alloy, a polymer, a composite material, concrete or a mixture thereof.
- they comprise metal or a metal alloy.
- they can be made predominantly of metal or metal alloy.
- they can advantageously include a combination of materials making it possible to thermoregulate the rearing area as well as possible while consuming a minimum of energy.
- the last plate 1300, lower, located at the bottom of the superposition, meanwhile, when it is placed on the ground, under the mobile floor 1400, can include a concrete screed.
- the rearing units or more generally a system comprising a plurality of rearing units according to the invention can advantageously comprise one or more devices for measuring the temperature.
- These devices can for example be temperature probes but also thermal cameras
- the temperature probes can be configured to measure the temperature of the ambient air, of the heat transfer fluids (eg at the inlet and / or at the outlet of the plate), of the growth surfaces or of the plates.
- each tray is advantageously equipped with at least one temperature measuring means such as a temperature probe 1104, 1204, 1304, in order to control the temperature of the farming areas used.
- each tray comprises a plurality of temperature probes regularly arranged along its longitudinal axis, in order to monitor the temperature of each rearing area operated over its entire length.
- each breeding tray is also equipped with a means of thermoregulation of its exploited surface and the thermoregulation of each tray is controlled independently.
- each plate comprises a set of pipes 1150, 1250, 1350 configured to allow the circulation of a heat transfer fluid.
- the heat transfer fluid is regulated by a centralized unit, not shown, composed either of a heat pump or of a thermo-fridge-pump, placed in the 2000 livestock building and allowing the heat transfer fluid to circulate in all the pipes of each of the plates.
- the pipes are for example linear and may have circular sections. However, the pipes can take the form of a cavity positioned below the rearing surface. Their number varies from one tray to another, depending on the width of said tray.
- the consecutive pipes are connected in pairs, by means of flexible pipes for example, so that a first pipe allows the fluid to enter. coolant and its neighbor allows the return of the coolant to the centralized unit, such as a thermo-fridge-pump for example.
- Two consecutive pipes connected in pairs thus form a network of pipes.
- the flexible pipes for connecting the ends of two pipes can be placed inside the end module of the tray or outside the end module.
- the upper plate 1 100 comprises two networks of pipes
- the intermediate plate 1200 comprises three
- the lower plate 1300 comprises four.
- these pipes could be replaced by a single cavity suitable for the circulation of a heat transfer fluid.
- each pipe of each plate can be equipped with at least one flowmeter, not shown, intended to measure the value of the flow rate of the fluid flowing in the pipe and a solenoid valve, referenced 2051 in Figure 6, arranged upstream.
- each inlet port 1 150A, 1250A, 1350A of each network of pipes is controlled by a control system to control its opening and / or its closing so as to allow a flow of the fluid with a predetermined flow rate to obtain a targeted temperature over the entire length of the farmed surface or tray.
- the temperature can be controlled by positioning temperature probes respectively upstream of each inlet and downstream of each outlet of the pipes allowing the entry and / or return of the coolant for a plate given.
- the inlet temperature of the heat transfer fluid it is possible to measure the inlet temperature of the heat transfer fluid, then to measure the temperature when it returns to the centralized unit and therefore to control the temperature of each rearing surface of each tray by controlling the flow of the heat transfer fluid as detailed above.
- the temperature probes can be replaced by any other temperature measuring device known to those skilled in the art and configured to provide temperature measurements of the rearing surface of a given tray, of a unit of breeding according to the invention or more generally a breeding building.
- Such other temperature measuring devices can, by way of non-limiting examples, be thermal cameras.
- the upper 1100 and intermediate 1200 plates are metallic and have a cavity, referenced 1203 in Figure 5.
- the bottom of the cavity is covered with a thermal insulating material 1205.
- This material may by example be an insulating polymer such as a polystyrene or a polyurethane, for example, mineral wool, cellulose wadding, expanded cork, bio-based wool or any other equivalent material.
- This material makes it possible to insulate the bottom and the side walls of the cavity 1203 in order to optimize the heat exchanges so that they only take place towards the rearing surface 1210.
- the cavity 1203 is advantageously filled with a thermally conductive liquid or a thermally conductive material (eg concrete).
- the pipes 1250A and 1250R provided for the flow of the heat transfer fluid pass through this cavity 1203 and are linear over the entire length of the plate.
- the cavity is covered with a metal plate constituting the rearing surface 1210 on which the larvae and their nutrient medium are placed.
- the flow of the heat transfer fluid in the pipes 1250A, 1250R allows heat exchange with the rearing surface 1210 by means of the liquid or of the thermally conductive material for filling the cavity 1203.
- the thermally conductive filling medium of the cavity may be glycol water or else an oil for example or else a material such as concrete or a metal such as aluminum for example.
- each module constituting a tray
- at least one adjustment pipe 1202 in fluid communication with the interior of the tray. the cavity 1203 and closed at its outer end.
- This adjustment pipe 1202 allows the liquid to flow according to the principle of communicating vessels when the density of the liquid in the cavity increases, due to its temperature.
- the lower plate 1300 when it is placed directly on the ground 1003, and under the retractable floor 1400 separating two rows, can advantageously comprise a concrete screed.
- the plate 1300 rests on a slab 1003, which can for example be a concrete slab.
- the heat transfer fluid circulation pipes are held fixedly on or in an insulating material.
- the insulating material may for example take the form of an insulating padded plate made of expanded polystyrene such that the pipes can be held by clipping between two pads.
- the linear pipes can be fixed on a plate made of insulating material by means of conventional fixing elements such as clips for example.
- a concrete screed is then poured so as to coat the pipes and the insulating plate and achieve a smooth surface for rearing larvae.
- the heat transfer fluid flowing in the pipes allows thermal energy transfer with the concrete rearing surface of the tray.
- the breeding unit advantageously comprises a device for mechanized and preferably automated transfer of larvae from a tray to a lower tray.
- it is configured to transfer larvae and their substrate, organic matter composed in particular of a food product for the larvae and their droppings, to a tray located just below in the overlay.
- a mechanized transfer device according to the invention makes it possible to optimize the rearing surface at the stage of development of the insect, to limit the energy consumption of thermoregulation to only the surfaces exploited, to adjust this thermoregulation independently for each plate. .
- the trays of the superposition are equipped with a movable side wall, respectively 1120, 1220, which is arranged to allow the transfer of the larvae, by gravity, into the immediately lower tray, respectively 1200, 1300.
- the trays of the superposition, or at least the trays 1100, 1200 located above the last tray 1300 of each superposition can be equipped with a larval retention means such as a stopper or a rim.
- a movable wall according to the invention may for example be the rearing surface arranged so as to be inclined so as to cause the displacement of the larvae by gravity towards a plateau located below.
- a movable wall according to the invention can also be a vertical wall of a tray, the movable wall then being arranged so as to move alone or in the form of a bottomless box to push the larvae and move them by gravity towards a tray located below.
- the opening of the movable wall is in the direction of arrow F3 in Figures 1, 2 and 5, so that the wall moves outwardly of the tray.
- the elementary movable wall 1220 of a 1200M breeding module is for example mounted movably around an axis 1226 of rotation materialized by two parts each connecting one of the two lateral uprights 1229 of the movable wall and one of the two transverse walls 1209 of the breeding module 1200M constituting the plate 1200.
- the movable wall can be actuated in rotation, in the direction of the arrow F3, thanks to a pin 1223 arranged opposite the longitudinal wall opposite the movable wall and connected to the wall mobile 1220 by means of two rigid rods 1222 or two straps for example.
- Each rigid rod 1222 is fixed at a point 1227 located at the upper end of one of the lateral uprights 1229 of the movable wall 1220.
- the rotation of the axis 1223 according to the arrow F4 causes the straps to wind around the axis 1223.
- the length of the straps then decreases and the latter exert a tensile force at the fixing points 1227 with the movable wall 1220, which causes the movable wall 1220 to rotate about its axis 1226, according to the arrow F3, causing it to open.
- each breeding module 1200M constituting a tray 1200 are connected to each other, so that the actuation of an axis 1223 causes the actuation of the other axes 1223 of the other juxtaposed modules and the mobile walls elementary of all the constituent modules of the plate are integral with each other and open in a synchronized manner, so that they form a single movable wall of great length.
- each tray 1100, 1200 is provided, on its upper end located opposite the rearing surface of the tray, with an inverted “U” -shaped rim, referenced 1221 in FIG. 5.
- This rim advantageously allows a fall by gravity, on the rearing surface, of the crawling larvae, thus preventing the latter from escaping.
- the upper ends of the side walls of the trays 1100, 1200, 1300 are also provided with such an inverted "U" -shaped rim, referenced respectively 1 101, 1201 and 1301 in Figures 1 and 2.
- Closing means making it possible to ensure the sealing of the rearing surface, when the movable wall is in the closed position, are also provided on the movable wall.
- the closure means can for example be selected from magnets, electromagnets, jacks or latches.
- magnets 1225 are provided, regularly spaced along the lower part of the movable wall 1220. When the movable wall closes, its lower part is positioned against the outer edge of the cavity 1203. When the cavity is metallic, the magnets 1225 cooperate with the outer edge of the cavity for maintaining the movable side wall 1220 in the closed position.
- a preferred embodiment consists in further arranging a magnetized plate 1206 against the internal wall of the cavity 1203 in order to reinforce the maintenance of the movable wall 1220 in its closed position.
- a seal 1228 made of foam or silicone for example, can also be provided along the rearing surface and on the outer edge of the cavity 1203.
- the trays 1100, 1200 are further advantageously equipped with a scraper 1500 configured to transfer, by gravity, the larvae, their nutrient medium and residual frass to the immediately lower plateau, respectively 1200, 1300, in the overlay.
- This scraper 1500 which can also act as a movable wall, comprises a blade 1503 moving in contact, or substantially in contact, with the rearing surface 1210 so as to move the larvae outside this rearing surface. The scraper is moved in translation along the transverse axis of the plate and as shown schematically in Figures 3 and 5 by the arrow F5.
- Guides 1502 are preferably arranged along each transverse wall of the plate so as to guide the scraper during its movement and so that it does not deviate from its path.
- the scraper 1500 can be used to transfer larvae past the larval retention means or movable wall 1120, 1220, when in the open position.
- the rearing surface 1210 is transferred to the immediately lower plate by the scraper 1500 in a translational movement along the transverse axis of the plate.
- the plate being of modular construction and produced by juxtaposing a plurality of modules, the scraper of a plate is in fact made up of several elementary scrapers synchronized with each other. Indeed, each constituent module of a plate is equipped with an elementary scraper over its entire length. When the modules are connected to each other to form a very long plate, the elementary scrapers of the plate are connected to each other and the same control means controls them in a synchronized manner. Thus, if the elementary scraper of a constituent module of the tray fails, it does not prevent the other elementary scrapers of the other constituent modules of the tray from functioning.
- Different equivalent means can be used to actuate the translational movement of the scraper.
- This can be a rotation around endless threaded rods, referenced 1504 in Figures 3 and 5.
- the endless threaded rods 1504 are rotated by means of a drive chain referenced 1505 on the Figure 4, the chain tension being exerted by chain tensioning gears referenced 1506, and 1508.
- a gear 1508, associated with each threaded rod 1504 is connected to another gear 1507 by means of another chain, not shown and connected to the gear 1507 of a neighboring module.
- a single motor makes it possible to actuate a gear 1507 which drives the other gears 1507, 1508 and 1506 thanks to a juxtaposition of chains between the various constituent modules of the plate 1200.
- the elementary scrapers of the various modules are actuated in a synchronized manner. , so that they form a single scraper of great length.
- other equivalent means can be used to actuate the translational movement of the scraper, such as, for example, traction by means of cables or even a thrust exerted on the scraper by means of pistons.
- the movable wall and the transfer device can be coupled and combined to form a transfer system similar to a bottomless drawer.
- the walls of the drawer are used to contain the larvae and their substrate on the tray.
- the mechanized bottomless drawer moves across the tray to an open position, it allows the transfer of larvae and substrate to the lower tray.
- the trays are equipped with a movable wall over a length and a movable wall over a width.
- the opening of the movable wall to the width can be effected by a vertical trap system.
- the opening allows the entry of an independent mobile transfer system circulating on the platform.
- the mobile transfer system moves longitudinally on the tray and has a transverse transfer means which can be a screw or a scraper to push the larvae and their substrate through the opening of the longitudinal movable wall of the tray, then located in the open position, towards the lower plate.
- the upper end of the scrapers is fitted with an inverted "U" 1501 rim allowing the crawling larvae to fall back onto the rearing surface by gravity and thus prevent certain larvae from sinking. 'escape from their breeding environment defined by a breeding surface 1 1 10, 1210, 1310.
- the last plate 1300 of the overlay located at the bottom of the overlay, it is not equipped with a movable wall. This plateau constitutes the rearing plateau for larvae in their last stage of development.
- the latter plate 1300 is advantageously made in one piece, that is to say without modular juxtaposition. At the end of this last stage of development the larvae must be harvested, along with their nutrient medium and the residual frass, to be sent to a processing unit.
- Such harvesting of larvae can be done by means of a mechanized, preferably automated, harvesting device.
- the mechanized harvesting device may correspond to any means making it possible to transfer the larvae without damaging them from their place of growth and their place of transformation.
- a mechanized harvesting device could for example correspond to an endless screw, a conveyor belt or even a conveyor belt.
- the mechanized and automated harvesting device is preferably mobile in translation along the longitudinal axis of said tray.
- Such a mechanized and automated harvesting device helps speed up the harvesting process.
- the mechanized and automated harvesting device is a scraper-vacuum cleaner preferably movable in translation along the longitudinal axis of said plate, connected to a suction system via a network of hoses.
- the mechanized and automated harvesting device is composed of a movable longitudinal wall on the lower plate, of a device for movable transfer of the larvae and their substrate / andean through the movable wall to a conveying device. , which can be a mat, allowing the larvae and the harvested substrate to be transported to a centralized point.
- a mechanized and automated harvesting device helps speed up the harvesting process.
- This automated harvesting device can also correspond to a suction system coupled to collection means via a suction network equipped with tapping points distributed in the rearing unit, the collection means being arranged to collect the larvae from the trays located at the bottom of each superposition.
- a scraper-vacuum cleaner not shown in the Figures.
- This scraper-vacuum has a length equal to the width of the plate 1300 and it is moved in translation along the longitudinal axis of the plate. As it is translated, the content of the rearing surface is sucked by a flexible hose or a network of hoses, not shown, coupled to a suction system, not shown, and connected to the scraper-vacuum.
- Each lower plate of each row can be equipped with such a scraper-vacuum.
- each lower plate 1300 is equipped with an opening, for example in the form of a guillotine hatch, in order to allow the passage of the suction robot from one lower plate to another.
- the lower plates are equipped with a movable wall over a length and a movable wall over a width.
- the opening of the movable wall to the width can be done by a vertical trap system. This opening allows the entry of an independent mobile transfer system circulating on the platform.
- the mobile transfer system moves longitudinally on the tray and has a transverse transfer means which can be a screw or a scraper to push the larvae and their substrate through the opening of the longitudinal movable wall of the tray, then located in the open position, to a conveyor system arranged along the lower plate.
- the conveyor system is a belt located between 2 lower lines facing each other (2 lower trays of the same unit).
- the trays of the rearing unit each have a total surface area, part of which constitutes the larvae rearing surface and this rearing surface increases as a function of the stage of development of the larvae.
- a particular example of such an embodiment consists in producing the plates with identical dimensions. The trays are then divided over their length by removable partitions, such as hatches for example. The length of each tray is then divided into as many parts as there are stages of development of the insect larvae to be reared. Thus, only a first surface, corresponding to the rearing surface, is exploited on a first part of the plate during the first stage of development of the larvae.
- thermoregulation means can then be modular and be configured to thermoregulate only part of the surface of the plate, corresponding to the rearing surface associated with a stage of development of the larvae.
- the thermoregulated rearing area therefore increases according to the stage of larval development, which makes it possible to maintain an optimal temperature targeted for the development of larvae without risking influencing the development of larvae in other trays. Indeed, as only the rearing surface is thermoregulated, an increase in temperature will only have an influence on the development of larvae present on said rearing surface.
- thermoregulating these rearing surfaces is carried out in accordance with that described above with regard to the preferred embodiment of the rearing unit according to the invention.
- the breeding unit according to this embodiment can include a plurality of trays which can be superimposed.
- a larval feed distribution tank controlled by a feed control device, allows doses of feed products to be conveyed at regular intervals to the farmed areas in use, as a function of time.
- the tray further comprises a scraper-vacuum, movable in translation along its longitudinal axis, when all the removable partitions are in the retracted position.
- This scraper-vacuum cleaner is connected to a suction system by a hose or a hose network and makes it possible to collect the larvae at the end of their last stage of development, with a view to transferring them to a treatment unit.
- the fact of not thermoregulating the ambient air but only the rearing surfaces in contact with the larvae, makes it possible to optimize the energy requirements for thermoregulation.
- the breeding trays are not intended to be moved, they remain in place and their breeding surface is constantly thermoregulated independently.
- the larvae are fed at regular intervals thanks to a feeding device such as a feed product distribution tank which is conveyed to the rearing areas by means of a piloting program.
- Figure 6 shows a cross-sectional diagram of a 2000 insect larval rearing building comprising three 1000 insect larval rearing units.
- This diagram illustrates only one possible embodiment of the invention.
- the invention is not limited to this embodiment, the number of larvae rearing units and the number of rearing trays per unit, in particular, being able to be modified according to the nature of the larvae. insects to be kept there.
- the building can include breeding units according to the first preferred embodiment and / or breeding units according to the second embodiment.
- FIG. 6 The particular example shown in Figure 6 was developed for rearing larvae of Hermetica lllucen, known as the black soldier fly.
- the number of breeding units, in accordance with the second embodiment, and trays per unit has been determined beforehand according to its development cycle.
- the optimal growth period for this insect is 9 days.
- This cycle of growth made it possible to determine three distinct stages of development of three days each.
- a 1,100, 1,200, 1,300 breeding plateau has therefore been reserved for each stage of development.
- a 1000 larval rearing unit can harvest larvae every three days. By having three 1000 breeding units in the 2000 breeding building, it is possible to harvest one harvest per day.
- the 2000 building dedicated to the rearing of insect larvae includes at least one rearing unit 1000. Preferably, it comprises a plurality of them arranged side by side. In the particular example of the rearing of black soldier fly larvae, the building preferably comprises three units, each unit each comprising two rows 1001, 1002 of three trays 1 100, 1200, 1300 superimposed, so as to allow a daily harvest of larvae.
- each unit may include at least two trays, each tray being split into three parts in its length.
- each rearing tray is thermoregulated independently, it is also necessary to deconcentrate the ambient air of the building, from the surplus gas including the ammonia released by the larvae and their substrate during breeding and regulate the hygrometry of this air.
- the building is equipped with conventional 2020 extractor turbines arranged regularly on one of the building's longitudinal walls. These extractors are preferably placed in the upper part of the longitudinal wall.
- the building also includes at least one probe for measuring the concentration of ammonia in the gas phase and the hygrometry, referenced 2010 in Figure 6.
- the result of the, or measurements, recorded by the (s) probe (s) is communicated to an aeration control device which makes it possible to actuate the extractors and make them turn more or less rapidly depending on the quantity of ammonia and the humidity to be evacuated.
- the building also has, on the longitudinal wall located opposite the one equipped with the extractor turbines, a reclosable air inlet 2030.
- This reclosable air inlet can for example be in the form of a curtain with shutters.
- This curtain is also controlled by the ventilation control device, in order to more or less open the shutters of the curtain depending on the amount of fresh air to be brought into the building.
- thermoregulation The fresh air entering the building is not thermoregulated, the thermoregulation being carried out only on the exploited surface of each tray, directly in contact with the larvae, and adapted to the stage of development of the larvae.
- the energy consumption useful for thermoregulation is considerably reduced compared to existing installations which consist in thermoregulating the entire volume of incoming air even though it is extracted from the building almost instantly.
- this thermoregulation system promotes a better heat exchange surface with the larvae.
- a 2050 pipe network allows a heat transfer fluid to circulate between a centralized unit, in the form of a reversible heat pump or a thermo-fridge pump, and pipes 1 150, 1250, 1350 on each plate of each unit.
- the building also includes a control unit making it possible to control each thermoregulation means of each rearing tray of each unit independently, depending on the stage of development of the larvae, of temperature values measured on the exploited surface of each tray. and measured values of the flow rate of the heat transfer fluid flowing in the pipes 1150, 1250 and 1350 of each plate.
- the control means controls the opening and / or closing of each solenoid valve 2051, arranged opposite each pipe inlet orifice 1 150A, 1250A, 1350A, in order to adapt the flow of heat transfer fluid and '' reach the target temperature of each tray. In this way, the amount of energy expended on thermoregulation is controlled.
- the building also includes a mechanism for feeding the larvae that is mechanized and preferably automated.
- the mechanized larvae feeding device may for example take the form of a vat 2040 for distributing larval feed products, the contents of this vat being conveyed at regular intervals to the trays to allow feeding of the larvae by means of a piloting program.
- the larval feeder such as the tank, is suspended on a rail 2041, along which it moves, between the trays, and thus conveys the feed product.
- an automated means makes it possible to control the movement of the larvae feeding device along the rail between the trays and thus to convey the feed product in an automated and regular manner, as a function of time, in the trays to allow a larvae feeding.
- the floor 1400 is automatically moved to be opened, on command of the automaton of the larvae feeding device (eg distribution tank), to allow distribution of the feed products. in the lower tray (s) placed under the floor.
- the rail is configured to allow movement of the larvae feeder (e.g. tank) through all units in the building.
- the rail includes bends on the outside of the units so as to allow conveying of the larvae feeding device (e.g. tank) from a unit to a neighboring unit and so on.
- another automated device also referred to as a larval transfer control device, allows to control the opening and closing of the movable walls 1 120, 1220 of the upper plates of each unit, independently.
- This automated device also makes it possible to control, in a manner synchronized with the opening of a movable wall of a plate, the transfer device such as the scraper of the corresponding plate.
- the control of the opening of a movable wall and of the transfer device such as the associated scraper can be carried out as a function of temperature values measured, for example on the surface of the plate, of the quantity of feed product distributed and / or as a function of time.
- a larvae transfer device could be configured to take into consideration predetermined temperatures or predetermined times.
- the building also includes a suction system, not shown, coupled to a hose or a network of hoses.
- the hose (s) is (are) connected to at least one scraper-vacuum cleaner.
- a larvae harvesting control device then makes it possible to actuate the suction and the translational movement of the scraper-suction device along the longitudinal axis of a lower plate 1300, so as to allow the larvae to be harvested at the end of their last stage of development.
- the devices for controlling the ventilation of the building, the thermoregulation of each tray, the transfer of larvae from one tray to another by actuating a scraper and the movable wall of the associated tray, the conveying and the feed product distribution and the larvae harvesting scraper-suction system are all combined in one and the same automatic supervisory device.
- the temperature, ammonia concentration and humidity level measurement probes, and flowmeters are directly connected to this PLC supervision device in order to send it the measured values to allow it to adapt the control of the various elements.
- a clock is also connected to the automatic supervision device, or integrated into the device, to make it possible to know the stage of development of the larvae.
- the automatic supervision device thus makes it possible to actuate the heat transfer fluid pump and the solenoid valves of each thermoregulation means, the extractor turbines, the reclosable air inlet, the conveying of the food distribution tank, the scrapers and movable walls, the scraper (s) -aspirator (s) and the suction system.
- the method 100 for rearing, described in connection with FIG. 7, of insect larvae implemented using rearing units 1000 in accordance with the first preferred embodiment advantageously comprises the following steps:
- - Distribute 140 a feed product for said larvae according to at least one predetermined dose corresponding to their stage of development and wait for the end of a second predetermined period corresponding to a second stage of development and repeat the steps of transfer and distribution of product larval feeding until transfer and distribution of larval feed product to the last tray at the bottom of the stack, and
- the method for rearing insect larvae may further include a stage of thermoregulation of the trays which may include a preliminary measurement of temperature, for example at the level of the trays, the growth surfaces, the heat transfer fluid or the ambient air. .
- Temperature probes will be able to permanently transmit the temperature of the swath to a supervision automaton which will be able to control the temperature control system.
- the average temperature of the swath is preferably maintained between 25 and 35 ° C.
- a thermostatic source will be induced under the surface of the plate on which the swath will rest. This surface must therefore be able to transmit the heat flow between the thermostatic source and the swath.
- the estimate of the heat flux generated by the larvae is 150 to 200 W / m 2 .
- thermoregulation by the plate is particularly advantageous.
- the method may include the use of a stirring device configured to produce a crumbling of the clusters formed by heterogeneous drying of the swath (eg change from a size of the order of 5 cm or more to a size below 1 cm), and / or a turning over from the top layer to the bottom layer and vice versa.
- a predetermined quantity of insect larvae are placed on a first rearing tray 1100, located at the top of the superposition of trays and having a first rearing surface.
- the distribution of the larval feed product in said first rearing tray is preferably done according to at least one predetermined dose corresponding to the stage of development of said larvae.
- This distribution can be done, by means of a feed device, controllable and automated, of feed product such as a feed tank conveyed at regular intervals by means of a pilot program of a power supply control device.
- the method comprises an intake of food at least daily.
- the young larvae are put into growth in the first stage, represented for example by a 1100 breeding tray. After a period of 3 days, the larvae are transferred by a gravity mechanism into the lower 1200 tray.
- the feed product of said larvae is distributed on the lower plate according to at least one dose corresponding to their stage of development, by means of said feed tank conveyed at regular intervals by means of the control program of said control device. feed and wait for the end of a second predetermined duration corresponding to a second stage of development and repeat the stages of transfer and feeding of the larvae until the transfer and feeding of the larvae in the last tray 1300 located at the bottom of the overlay.
- the larvae will be sent to stage 3 represented by breeding tray 1300 with the same gravity mechanism.
- the larvae, along with their droppings and food residues will be harvested by a harvesting system to be designed as well.
- each floor is operated daily.
- the rearing surfaces are thermoregulated.
- the floors on which the larvae grow will be thermally regulated by a heat transfer fluid which will raise or lower the temperature of the trays.
- the ambient air which is constantly renewed in order to be deconcentrated from the ammonia given off by the larvae and its nutrient medium is not directly thermoregulated. Only the rearing surface of the different trays directly in contact with the larvae is individually and independently thermoregulated. Therefore, rearing insect larvae in this way consumes much less energy than in existing facilities.
- the rearing areas are also sized according to the stage of development of the larvae, so that no area is wasted and the thermoregulated areas are all exploited.
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Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1904793A FR3095738B1 (en) | 2019-05-07 | 2019-05-07 | Unit, building and method for rearing insect larvae |
PCT/FR2020/050762 WO2020225516A1 (en) | 2019-05-07 | 2020-05-07 | Unit, building and method for rearing insect larvae |
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EP3965564A1 true EP3965564A1 (en) | 2022-03-16 |
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EP20740686.9A Withdrawn EP3965564A1 (en) | 2019-05-07 | 2020-05-07 | Unit, building and method for rearing insect larvae |
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US (1) | US20220217957A1 (en) |
EP (1) | EP3965564A1 (en) |
CA (1) | CA3138931A1 (en) |
FR (1) | FR3095738B1 (en) |
MA (1) | MA55900A (en) |
WO (1) | WO2020225516A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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AU2021240374A1 (en) * | 2020-03-27 | 2022-11-24 | Daradh TONER | Wasp feeding station |
US11311003B2 (en) * | 2020-05-29 | 2022-04-26 | Yu Land Biological Agriculture Co., Ltd. | Mobile culture assembly for feeding larvae of black soldier fly |
CN114651791B (en) * | 2022-01-10 | 2023-03-21 | 宁波大学 | Chain transmission type stereoscopic automatic breeding device and method for hermetia illucens |
GB2620587A (en) * | 2022-07-12 | 2024-01-17 | D Bug Ltd | Rearing system for insect larvae, method of rearing insect larvae, method of producing a food product or a feed product |
CN115349499A (en) * | 2022-08-30 | 2022-11-18 | 拱北海关技术中心 | Lepidoptera insect raises suitcase |
CN115943931B (en) * | 2022-12-07 | 2023-07-18 | 江苏省农业科学院 | Ammonia gas emission reduction method in hermetia illucens bioconversion process |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US6474259B1 (en) * | 2001-04-30 | 2002-11-05 | Rutgers, The State University Of New Jersey | Apparatus and method for mass production of insecticidal nematodes |
CA2587901C (en) | 2007-05-04 | 2011-09-27 | Ivan Milin | System for processing waste using insect larvae |
US9629339B2 (en) * | 2011-02-21 | 2017-04-25 | The University Of Georgia Research Foundation, Inc. | Systems and methods for rearing insect larvae |
JP5913044B2 (en) * | 2012-10-26 | 2016-04-27 | 株式会社イーズ | Organic fertilizer and feed production system |
NL2010666B3 (en) | 2013-04-19 | 2018-11-21 | Buhler Changzhou Insect Tech Co Ltd | Method and system for breeding insects, using a plurality of individual crates. |
EP3175707B1 (en) * | 2014-07-31 | 2018-11-28 | Zhejiang Academy of Agricultural Sciences | Large-scale and high-efficiency fly maggot culturing equipment and process |
NL2020055B1 (en) * | 2017-12-12 | 2019-06-19 | Hazekamp Man Beheer B V | GROWING DEVICE FOR GROWING INSECTS AND METHOD FOR USE OF THE GROWING DEVICE FOR GENERATING HEAT |
PL3979793T3 (en) * | 2019-06-07 | 2023-09-04 | Protix B.V. | Connector assembly, system and method for converting a batch wise supply of insects to a continuous supply of insects |
-
2019
- 2019-05-07 FR FR1904793A patent/FR3095738B1/en not_active Expired - Fee Related
-
2020
- 2020-05-07 MA MA055900A patent/MA55900A/en unknown
- 2020-05-07 CA CA3138931A patent/CA3138931A1/en active Pending
- 2020-05-07 US US17/609,111 patent/US20220217957A1/en not_active Abandoned
- 2020-05-07 EP EP20740686.9A patent/EP3965564A1/en not_active Withdrawn
- 2020-05-07 WO PCT/FR2020/050762 patent/WO2020225516A1/en unknown
Also Published As
Publication number | Publication date |
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WO2020225516A1 (en) | 2020-11-12 |
MA55900A (en) | 2022-03-16 |
FR3095738B1 (en) | 2022-07-22 |
FR3095738A1 (en) | 2020-11-13 |
CA3138931A1 (en) | 2020-11-12 |
US20220217957A1 (en) | 2022-07-14 |
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