EP4447687A1 - Appareil et procédé d'étourdissement de volaille dans une chambre d'étourdissement au-dessus du sol - Google Patents

Appareil et procédé d'étourdissement de volaille dans une chambre d'étourdissement au-dessus du sol

Info

Publication number
EP4447687A1
EP4447687A1 EP21839180.3A EP21839180A EP4447687A1 EP 4447687 A1 EP4447687 A1 EP 4447687A1 EP 21839180 A EP21839180 A EP 21839180A EP 4447687 A1 EP4447687 A1 EP 4447687A1
Authority
EP
European Patent Office
Prior art keywords
stunning
gas
zones
transport
containers
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.)
Pending
Application number
EP21839180.3A
Other languages
German (de)
English (en)
Inventor
Poul Kjeldsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baader Food Systems Denmark AS
Original Assignee
Baader Food Systems Denmark AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baader Food Systems Denmark AS filed Critical Baader Food Systems Denmark AS
Publication of EP4447687A1 publication Critical patent/EP4447687A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22B—SLAUGHTERING
    • A22B3/00—Slaughtering or stunning
    • A22B3/005—Slaughtering or stunning by means of gas
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22B—SLAUGHTERING
    • A22B3/00—Slaughtering or stunning
    • A22B3/08—Slaughtering or stunning for poultry or fish, e.g. slaughtering pliers, slaughtering shears
    • A22B3/086—Stunning devices specially adapted for poultry
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22B—SLAUGHTERING
    • A22B5/00—Accessories for use during or after slaughtering
    • A22B5/02—Slaughtering pens
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22B—SLAUGHTERING
    • A22B7/00—Slaughterhouse arrangements
    • A22B7/001—Conveying arrangements

Definitions

  • the invention relates to a device designed and set up for gas stunning of live poultry intended for slaughter and located in containers by means of a gas mixture containing a stunning gas, comprising at least one stunning chamber with at least two stunning zones, at least one input station for the live poultry arranged on the input side of the stunning chamber container and at least one output station for the container containing the stunned poultry arranged on the output side of the stunning chamber, a transport device with at least one transport conveyor designed and set up to transport the container from the input station to the output station through the stunning chamber along at least one transport route.
  • the invention further relates to a method for gas stunning of live poultry intended for slaughter and located in containers by means of a gas mixture containing a stunning gas.
  • Devices and methods for gas stunning poultry animals have been known for many years from the prior art and are used in particular for gentle and stress-free pre-treatment of animals intended for slaughter.
  • Such devices and methods use, for example, carbon dioxide as the stunning gas, which is provided to the poultry animals in lethal and/or stunning concentrations.
  • the degree of unconsciousness depends on the concentration of the stunning gas in the gas mixture and/or the duration of exposure to the gas mixture containing the stunning gas, which is why stunning is carried out in several Phases of different and especially increasing concentration of the stunning gas in the gas mixture takes place.
  • the poultry animals must be brought to a state of deep unconsciousness prior to slaughter - according to individual animal welfare guidelines - to the point of brain death.
  • the period of time between unconsciousness, especially if brain death has occurred, and the slaughter or the throat or head cut which usually involves a cut in the blood vessels on the side of the neck, must be kept as short as possible so that the heart still has a residual function during slaughter to support the bleeding process after the throat or head cut.
  • Poultry animals which include broilers in particular, but also ducks, geese, turkeys or the like, are stunned in several stages in order to comply with the relevant animal welfare guidelines.
  • the devices have at least two stunning zones in which the poultry animals are exposed to gas mixtures with different concentrations of the stunning gas.
  • Carbon dioxide (CO2) is mentioned purely as an example of the anesthetic gas.
  • other approved anesthetic gases can also be used as part of the gas mixture.
  • the poultry animals According to an EU directive 1099/2009, the poultry animals must be completely unconscious before they are exposed to a gas concentration of more than 40% stun gas in the gas mixture.
  • the device according to the invention therefore preferably also comprises at least two stunning zones, one of the stunning zones having a share of less than 40% stunning gas in the gas mixture and at least one further stunning zone having a share of more than 40% stunning gas in the gas mixture.
  • WO 99/60861 A1 discloses a method and a device for generating and maintaining a gas mixture in one or more phases and the use of poultry stunning equipment.
  • the phases can be provided by zones in a facility such as a stunning tunnel or other suitable device.
  • the gas mixture consists of carbon dioxide gas (CO2) and oxygen (O2) and possibly some air.
  • CO2 carbon dioxide gas
  • O2 oxygen
  • the animals pass through the existing phases with the different gas concentrations directly one after the other, as a result of which there is little flexibility and a large amount of space is required.
  • the inclined stunning tunnel makes it difficult to set and maintain the correct gas concentration along the transport route of the animals to be stunned.
  • WO 2004/64528 A1 shows a method and a system for gas stunning of poultry for slaughter, in which the animals are stunned by gas after the animals have been removed from the transport crates and in which the animals are conveyed one after the other through a stunning chamber by means of conveyors, the influence of the Gas for stunning the animals can be adjusted by reducing or increasing the transport time and/or the transport distance of the animals on the conveyors through the stunning chamber.
  • the stunning chamber is designed as a pit through which the animals to be stunned are conveyed individually on inclined conveyors through the stunning chamber and thus through the individual gas concentrations.
  • the variation in the route of conveyance is provided by telescoping conveyors which, on the one hand, are costly, space and maintenance intensive and, on the other hand, provide little flexibility in the design of the stunning route.
  • a method and a device for stunning poultry is known from WO 2014/184770 A1.
  • a stunning gas is supplied to an enclosed chamber in which the poultry is transported through a plurality of sequential environments between an inlet where the stunning gas concentration is a minimum and an outlet where the stunning gas concentration is a maximum.
  • the drug gas concentration increases from each environment to the next, first at a minimum rate of increase and then at a higher rate of increase up to the maximum concentration.
  • the chamber is an above-ground stunning tunnel through which caged poultry are stepped down while being stunned.
  • WO 2015/156668 A1 relates to a device and a method for stunning poultry, with an elongate stunning chamber with a poultry feed opening and a poultry discharge opening, the elongate stunning chamber being divided into at least two adjoining compartments, a controlled stun gas feed line adjoining the elongate stunning chamber and a conveyor passing through the elongate stunning space providing a transport path for the poultry, at least one side of the elongate stunning space being connected to a transition compartment.
  • the known devices and methods all have the common disadvantage that due to the large amount of space required for such devices for stunning poultry animals, only a limited number of poultry animals can be stunned with a single device.
  • a poultry processing plant has a preset processing capacity in poultry per minute and the supply of poultry must meet the preset processing capacity.
  • the goal of poultry processors is to process a continuous flow of poultry in order to obtain a predictable and constant yield.
  • the devices for further processing poultry animals have been successively developed so that a higher processing capacity is possible here.
  • For the upstream stunning there is therefore a requirement for an increase in the processing capacity in order to achieve a desired target value for the overall processing.
  • the increase in stunning capacity is currently mainly achieved by larger stunning devices or by increasing the number of stunning devices within a company, which, however, is not appropriate for a large number of companies due to the large amount of space required and the investment costs.
  • the known devices and methods cannot be flexibly adjusted in terms of the ability to set the throughput times of the poultry animals through the devices.
  • poultry animals are natural products that are often subject to great fluctuations in anatomy, size, weight, etc., they sometimes require widely differing gassing times and concentrations in order to ensure the most animal-friendly and efficient processing possible.
  • gassing times and concentrations are processed, resulting in different numbers of poultry in the intended transport containers.
  • flocks of poultry may have been exposed to different stress factors during rearing, so that it may be necessary to increase or decrease fumigation times and/or concentrations.
  • specific fumigation times and concentrations are required for different types of poultry. In practice, it often happens that the optimal gassing factors are not selected for the poultry animals.
  • Another disadvantage of the currently known stunning devices which are suitable for running through with containers or "crates" (containers, boxes, drawers, etc.), is that the speed of the subsequent further processing stations (e.g. killing line) is not adaptable to a fluctuating output of stunned poultry if different lengths of residence time are provided for the poultry in the stunning device.
  • the speed of the subsequent further processing stations e.g. killing line
  • buffer areas are required in the plant, but this should be avoided for reasons of cost and quality. Killing should follow as soon as possible after stunning in order to avoid loss of quality.
  • the task is still to propose a corresponding method.
  • the at least one stunning chamber is arranged above ground and the at least two stunning zones are designed and set up to lie essentially horizontally one above the other, and that the gas mixture of the at least two stunning zones each has different concentrations of the stunning gas, wherein the concentration of the stunning gas in the gas mixture of the at least two stunning zones increases starting from the uppermost of the stunning zones to the lowermost of the stunning zones, and that the transport device is designed and set up in such a way that the containers on the at least one transport route through the at least two stunning zones essentially can be transported in a meandering manner horizontally along a stunning path in the stunning chamber.
  • the device according to the invention ensures that the space requirement of such devices is reduced based on the increasing process capacity in a poultry plant, as a result of which a higher throughput of poultry animals can be generated by means of the horizontally meandering stunning section.
  • the stunning distance can be variably changed, ie lengthened or reduced, by means of the present device. Due to the meandering design in at least two superimposed stunning zones, the process section can be extended with a constant floor area. Alternatively, such stunning zones can also be understood as levels or phases, each of which contains the stunning section or process section to be passed through.
  • the containers can preferably be transported variably by means of the transport device, preferably in terms of speed, through each of the stunning zones.
  • the residence time of the poultry and the amount of stunning gas to be administered can be set independently for each of the stunning zones.
  • the different concentrations of the stunning gas in the gas mixture of the at least two stunning zones improves the stunning efficiency through the possibility of operational to set the parameters of the treatment time in the different phases of the stunning process.
  • several containers arranged one above the other which are preferably present in a stack, are also expressly meant within the meaning of the invention.
  • the containers can therefore be present individually or in several containers arranged one above the other.
  • the device according to the invention can further preferably be designed and set up in such a way that the containers are transported through the stunning chamber in several rows next to one another in order to increase the capacity.
  • a simplified exchange between the respective stunning zones is provided if necessary, whereby in a preferred embodiment a gas exchange can be carried out between the stunning zones lying one above the other, for example in order to increase or decrease the gas concentration of the stunning gas in the corresponding stunning zones.
  • containers can preferably be exchanged in a stunning zone located above or below, in order, for example, to increase or reduce the dwell time of the containers containing the poultry in the respective stunning zones. The superimposed arrangement of the stunning zones thus enables simplified access between the stunning zones, as a result of which different states can be quickly adapted.
  • the meandering design which can alternatively be referred to as a serpentine design, for example, allows the use of the natural density differences of gas mixtures with different gas concentrations of a stunning gas, for example carbon dioxide, in order to provide a gas mixture with a different gas concentration of the stunning gas in each of the superimposed stunning zones.
  • the device is designed and set up in particular for the gas stunning of chickens.
  • the invention relates equally to comparable poultry intended for slaughter.
  • the containers are designed and set up to accommodate one or a plurality of poultry and are basically free in design, with openings or at least one cover element for at least partially closing the container being able to be provided, for example.
  • openings can be provided, for example through ventilation openings or a lattice structure.
  • Such containers are alternatively referred to as crates, crates, boxes, drawers, cages, containers, chests or the like and are also to be understood as meaning within the meaning of the invention. All open or closed frames, housings, troughs, tunnels, rooms, spaces or the like are referred to as stunning chambers in the broadest sense, such stunning chambers preferably being closed.
  • the stunning gas used is preferably heavier than the ambient air, so that the gas mixture with the stunning gas, if provided in one of the upper stunning zones, sinks towards the bottom of the stunning chamber and that the highest gas concentration of the stunning gas is present there.
  • the present invention is not limited solely to the use of gases or gas mixtures for stunning that are heavier than the ambient air. Rather, stunning gases or stunning gas mixtures can also be used which are lighter than the ambient air or whose density corresponds to that of the ambient air, in which case adjustments to the transport of the containers may be necessary, e.g. B. by changing the transport direction and / or the transport speed.
  • Gas mixtures in the context of the invention mean both gas mixtures and pure gases which are made available, for example, solely because of the prevailing pressure in their reservoir in the stunning chamber or in the stunning zones.
  • carbon dioxide is preferably used as the stunning gas because of its low cost and reliable availability.
  • the at least two stunning zones lying essentially horizontally one above the other enable a compact design of the device in order to design and set up the most comfortable possible transport of the containers or the poultry within the stunning zones along the stunning path.
  • the at least one stunning zone is preferably aligned parallel to the background or to the floor of the stunning chamber.
  • a modular and expandable and needs-based device can be provided in a simple and reliable manner, in that on the one hand further stunning zones or sections can be added, on the other hand it is not necessary for the entire scope of the device to be used , so that the containers containing the poultry animals to be stunned can only be passed through a section or a smaller number of the existing stunning zones, depending on the desired stunning or type or size of poultry.
  • a preferred embodiment is characterized in that the transport device, the input station and/or the output station comprises at least one elevator device for transporting the containers essentially vertically.
  • “substantially in the vertical” means either vertical or almost vertical, ie with a deviation of at most ⁇ 15°, particularly preferably at most ⁇ 5°.
  • the elevator device preferably runs essentially orthogonally to the at least one adjacent stunning zone.
  • the least an elevator device enables the containers to be transported into the stunning chamber or into the at least one stunning zone, on the one hand, and out of the at least one stunning chamber or from the at least one stunning zone, on the other hand. Elevator devices can be present in a single device in different designs and modes of operation, although these are designed and set up at least for transporting the containers vertically.
  • the transport device comprises a plurality of transport conveyors, the number of transport conveyors corresponding at least to the number of stunning zones provided.
  • the containers can be conveyed separately depending on the transport route or poultry used, in order to develop and set up a flexible transport speed or route at least in each of the stunning zones.
  • At least one individual stunning zone preferably has a plurality of transport conveyors. With a plurality of transport conveyors within a single stunning zone, for example, different speeds or interruptions of specific containers can be configured and set up with the existing transport conveyors.
  • each of the transport conveyors is designed and set up for the essentially horizontal transport of the containers along a transport route through at least a section of one of the stunning zones.
  • a “substantially horizontal transport of the containers” in the context of the invention means either horizontal or almost horizontal, ie with a deviation of at most ⁇ 15°, particularly preferably at most ⁇ 5°. In this way, the poultry animals are transported as realistically as possible.
  • horizontal transport enables a design with a small space requirement, which ensures a compact design.
  • the transport conveyors of the transport device can be present in different embodiments in a single device, although these must be designed and set up at least for transporting the containers over at least a section of the stunning zone along a transport route.
  • At least one of the transport conveyors is preferably designed and set up for transporting the containers in at least two transport directions. More preferably, at least one of the transport conveyors is designed and set up for transporting the containers in four transport directions.
  • An expedient embodiment of the invention is characterized in that in the course of the stunning section, the at least one elevator device is provided between the at least two stunning zones having at least one transport section located one above the other, in order to form and set up vertical transport of the containers between at least two stunning zones, with at least one of the transport sections is bypassable. By bypassing it is possible to reduce the potential stunning distance, whereby the stunning distance depends on the one hand on the prevailing gas concentration of the stunning gas and on the other hand on the poultry animals transported in the containers, e.g. B.
  • the transport sections of the at least two transport conveyors and the at least two stunning zones in connection with the at least one elevator device are designed and set up in relation to one another in such a way that the containers can be transported vertically over at least part of the stunning section in the stunning chamber, with at least one transport section of one of the transport conveyors is bypassable. More preferably, the vertical transport enables one or a plurality of the containers containing the poultry to be discharged. Overall, the distance to be covered within the stunning chamber can be variably adjusted, resulting in a reduction or lengthening of the distance.
  • the stunning section provided for the transport of the containers can be reduced.
  • the stunning distance can be adjusted depending on the respective poultry in the containers, for example depending on the size, the number and/or the stress level of the poultry, in order to transport them through the "sweet point" in the shortest possible time .
  • the poultry can be stunned or transported irreversibly unconscious through the subsequent stunning zones without causing the poultry animals any discomfort.
  • the "sweet point” preferably represents a carbon dioxide concentration starting from 0% to 5% of up to 40%, as a result of which the sleeping phase of the poultry animals is usually developed and established. Smaller poultry animals or a smaller number of poultry per container reach the so-called “sweet point” faster than larger poultry or a higher number of poultry per container.
  • a further expedient embodiment of the invention is characterized in that the elevator device is designed and set up in one of the stunning zones in such a way that when the containers are transported by means of the elevator device, the distance of the corresponding stunning zone can be reduced.
  • Different flocks of poultry and different sizes of poultry may be in different stages of physical mobility and activity, which are influenced by the environment, such as stress, discomfort, handling, climate, and so on. Some flocks of poultry are very calm, while other flocks are very stressed and active. This results in the fall asleep/stun phase requiring a different treatment time, which is compensated for by using one of the bypasses designed and implemented by the elevator facility.
  • Such circumventions are also known under the term “bypass”. In this way, the treatment time can be reduced at a constant transport speed.
  • the route of the corresponding stunning zone can preferably be lengthened by the containers being fed again from a lower stunning zone to an upper stunning zone by means of the elevator device. In this way, the treatment time can be extended at a constant transport speed.
  • a preferred development of the invention is characterized in that the transport device and/or the at least one elevator device can be adapted to the poultry in such a way that, depending on the number and/or the weight of the poultry in the containers, a variable transport speed and/or a variable stunning distance can be set in order to provide number and/or weight-specific stunning of the poultry.
  • the term “weight” includes in particular the size of the poultry. More preferably, a type-specific adjustability of the transport device and/or the at least one elevator device can also be configured and set up. The ability to adjust the stunning distance by means of the transport device and/or the at least one elevator device improves the specific stunning of the poultry animals present, based on their actual physiognomy.
  • larger Larger or heavier poultry requires a higher gas concentration of the stunning gas or a longer exposure to a stunning gas, so that such poultry are preferably transported more slowly by means of the transport device and/or that a longer stunning distance is selected by means of the elevator device.
  • faster transport can be designed and set up by means of the transport device and/or the stunning section can be shortened, for example by at least part of a stunning section being bypassed using the at least one elevator device.
  • An expedient embodiment of the invention is characterized in that the stunning chamber is designed and set up as a closed stunning tunnel and the stunning section runs essentially horizontally meandering, the at least two stunning zones being arranged essentially horizontally meandering one above the other.
  • the stunning tunnel is preferably designed in the form of a tube or a snake, with the individual stunning zones being separated from one another.
  • the closed stunning tunnel is not limited to a round cross-section, but rectangular diameters are also possible, for example.
  • the stunning tunnel represents a closed area, so that the meandering design requires little space in length and at the same time, the different stunning zones allow the natural properties of stunning gases to be used when they are distributed in rooms; for example, after which heavier stunning gases are present in the lower stunning zones.
  • the stunning chamber of the stunning tunnel can preferably be divided into three stunning zones with a low, medium and high concentration of stunning gas.
  • the natural density of carbon dioxide is used to provide a lower gas concentration at higher device areas, for example where the input station and/or the output station is located. This results in a safe working environment, reducing the risk of injury.
  • the stunning chamber comprises a stunning space with the at least two stunning zones, wherein the containers can be transported through the at least two stunning zones by means of at least one of the transport conveyors essentially in the horizontal direction and the at least one elevator device for vertical transport is formed and set up between at least two transport conveyors.
  • the stunning space can preferably include openings between the at least two stunning zones, as a result of which the stunning gas can at least partially pass between the adjacent stunning zones.
  • the stunning zones can be separated from one another in such a way that openings are formed only in the area of the elevator devices, the containers being transported through these openings on the one hand and gas exchange being able to be formed on the other.
  • the at least one input and/or the at least one output station comprises at least one gas barrier, designed and set up so that the gas mixture essentially remains in the stunning chamber and/or that essentially no ambient gas enters the stunning chamber.
  • the at least one gas barrier prevents potential health risks from escaping anesthetic gas.
  • the gas barrier can be designed and set up, for example, by means of a curtain, a lock device or by structural measures to form an air lock.
  • the input station and/or the output station for the containers can be closed in a simple manner with air locks or the like.
  • the stunning chamber comprises at least one gassing device, designed and set up to provide a gas and/or a gas mixture in the stunning chamber.
  • the at least one gassing device preferably provides the stunning gas in a sufficient stunning gas concentration to stun the poultry animals.
  • the device comprises a degassing device, designed and set up to at least partially discharge the gas and/or gas mixture contained in the stunning chamber from the stunning chamber. Such degassing devices are designed and set up, for example, as fans or suction devices.
  • a further expedient embodiment of the invention is characterized in that a stunning gas or a gas mixture containing a stunning gas can be made available in the lowest of the at least two stunning zones by means of at least one of the at least one gassing device in order to form a gas mixture with a first concentration of a stunning gas in the lowest stunning zone and set up.
  • the concentration of the gas mixture in the lowest of the stunning zones contains at least 40% of the stunning gas, particularly preferably at least 50% of the stunning gas.
  • An advantageous development of the invention is characterized in that oxygen and/or a gas mixture containing oxygen can be provided in at least one of the stunning zones by means of at least one of the at least one gassing device in order to form and set up an oxygen-containing gas mixture with a concentration of a stunning gas.
  • the at least one gassing device of this type makes it possible to construct and set up regulation of the concentration of the stunning gas in one of the stunning zones and/or in the entire stunning chamber. If the gas concentration of the stunning gas is too high, oxygen can be supplied in this way, for example, in order to adapt the stunning gas concentration prevailing in the respective stunning zone. The level of stunning gas can be reduced in this way from the total concentration, for example to provide an adjustment for different poultry species or sizes or number per container.
  • a further expedient configuration of the invention is characterized in that the stunning chamber comprises at least one gas flow device, designed and set up to provide a gas flow of at least one gas and/or a gas mixture from a first of the stunning zones into another of the stunning zones, preferably from the lowest stunning zone in at least one of the overlying stunning zones.
  • This makes it possible to actively Provide gas flow of a gas contained in the stunning chamber, which is distributed in this way in at least one of the stunning zone or in the entire stunning chamber. It is important for the poultry animals' well-being that they remain calm and without any signs of stress; at any time during the stunning process, which typically includes an euthanasia phase with a lower concentration of stunning gas.
  • the animals will start flapping their wings, which can result in bruising of the flesh and breakage of the wings. Any sudden and incremental increase in gas concentration will cause the animals to respond to that change.
  • a constant but gradual increase in the concentration of the stunning gas preferably the concentration of carbon dioxide
  • the containers are moved by means of the transport device against the constantly increasing stream of higher gas concentrations without the poultry animals noticing this.
  • the gas flow device is designed and set up to provide a stunning gas and/or a gas mixture containing a stunning gas in the stunning chamber, preferably in the lowest stunning zone, in a flowing manner, with the gas concentration of the stunning gas and/or the gas mixture containing stunning gas starting out gradually decreases from a maximum gas concentration of the stunning gas along the meandering stunning path.
  • the gas flow device can be used to provide a flow of the gas mixture containing the stunning gas in the course of the meandering design of the stunning zones, in which the gas concentration of the stunning gas increases successively in the course of the transport direction of the containers, starting from the input station.
  • the containers are preferably transported against and in the direction of the higher gas concentration, as a result of which the poultry contained therein are successively exposed to an increased gas concentration of the stunning gas, starting from a lower gas concentration.
  • the property of the higher density of carbon dioxide than oxygen or air is used, for example.
  • One method is to provide pure carbon dioxide at the lowest point of the stunning chamber. and to control the steady decrease in the carbon dioxide content up to the input station by adding oxygen or ambient air at one or more points in order, in a preferred embodiment, to achieve a CC>2 arc of 1.5% to 50% CO2 in the first pass from to produce input to the "sweet point" of unconsciousness (up to 40%). Subsequently, if required, a higher gas concentration can be provided in order to bring about irreversible unconsciousness of the poultry animals.
  • a preferred development of the invention is characterized in that the gas stream of a gas and/or a gas mixture can flow through the stunning tunnel along the meandering stunning path via at least one elevator device from the lowest stunning zone into at least one of the stunning zones above.
  • the gas and/or the gas mixture can thus be transported over the course of the entire stunning chamber over a number of stunning zones.
  • the at least one elevator device can preferably have at least one opening, which is designed and set up at least as required for the passage of a gas and/or a gas mixture. Such openings are more preferably designed and set up to be closable.
  • the device comprises a control and/or regulation unit, by means of which the transport speed of the or each transport conveyor, the use of the at least one elevator device and the composition of the gas mixture can be controlled with regard to the concentration of the stunning gas in the gas mixture in at least one of the stunning zones and/or is adjustable.
  • the control and/or regulation unit preferably comprises at least one computer unit in order to form and set up the control and/or regulation operations.
  • the control and/or regulation unit is further preferably designed and set up to carry out the control and/or regulation on the basis of empirical data and/or information provided; for example based on the gas concentration or composition within the stunning zones.
  • the number, the size and/or the type of poultry transported in the containers is preferably taken into account for the control and/or regulation.
  • the control and/or regulation can take place on the basis of the concentration of the stunning gas prevailing in the stunning chamber or in the stunning zones.
  • the control and / or the regulation unit is designed and set up in such a way that the corresponding opera- functions, ie an adjustment of the stunning distance, the transport speed and/or the stunning gas concentration.
  • the gassing device and/or the gas flow device is also designed and set up such that it can be controlled and/or regulated by means of the control and/or regulation unit.
  • the device according to the invention or the control and/or regulation unit is preferably designed and set up in such a way that it includes a programmable logic controller (PLC).
  • PLC control systems are designed and set up in particular for controlling various interdependent parameters, so that z.
  • B. the speed of the transport device (conveyor), the number of poultry animals in each container, the speed of subsequent processes (e.g. slaughter line), the effective stunning time, the gas concentration in each stunning zone, the monitoring in the stunning zones with alarm or the like and in particular the change in the stunning distance can be controlled and/or regulated.
  • the stunning section is changed by bypassing at least one transport section, which can be controlled and/or regulated by on/off control of the corresponding elevator devices, ie whether, for example, a long "sleep phase" and a short time with a high gas concentration is required .
  • the control and/or regulation unit is preferably designed and set up in such a way that the above parameters are automatically adjusted, for example the settings change accordingly, eg if the poultry are larger, which means that fewer poultry are in the containers and on the transport conveyors, but the speed of subsequent processes (e.g. slaughter line) remains the same, which makes it necessary to increase the number of poultry animals conveyed through the stunning chamber per minute, ie to increase the transport speed and the stunning distance to extend.
  • All information and parameters are monitored by the SPS or the control and/or regulation unit, which is designed and set up, for example, as a computer (system), and the settings can preferably be controlled and controlled immediately during operation with the corresponding poultry in the containers /or adjustable, more preferably automatically.
  • a further development is characterized in that the or each input station is/are designed and set up for the vertical and/or horizontal feeding of the containers onto the at least one transport route.
  • feeding in a vertical direction preferably from above, for example by means of an elevator device, and/or in a horizontal direction from the side, for example with a cross conveyor, in order to guide the containers into the stunning chamber.
  • the same also applies to the or each issuing station.
  • the opening is more preferably designed and configured smaller when feeding in from the horizontal side, so that there is as little gas exchange as possible between the gas in the stunning chamber and the ambient air.
  • a preferred development of the invention is characterized in that the or each delivery station is/are designed and set up for the vertical and/or horizontal delivery of the containers from the stunning chamber.
  • An expedient embodiment of the invention is characterized in that an elevator device is provided at the beginning and/or at the end of the transport section of each transport conveyor in order to form and set up vertical transport of the containers.
  • the object is also achieved by a method mentioned at the outset, comprising the steps of feeding the containers containing the live poultry into a stunning chamber by means of at least one input station, the stunning chamber being arranged above ground, transporting the containers through at least two stunning zones arranged essentially horizontally one above the other the stunning chamber by means of a transport device with at least one transport conveyor, the gas mixture of the at least two stunning zones each having different concentrations of the stunning gas, the concentration of the stunning gas in the gas mixture of the at least two stunning zones increasing from the uppermost of the stunning zones to the lowermost of the stunning zones, dispensing the containers containing the stunned poultry by means of an output station, wherein the containers are transported by means of the transport device on the at least one transport path through the at least two stunning zones in a substantially horizontal meandering manner along a stunning path in the stunning chamber.
  • a further development is characterized in that the containers are transported essentially vertically, at least in sections, by means of at least one elevator device comprising the transport device, the input station and/or the output station.
  • An expedient embodiment of the invention is characterized in that the containers are transported essentially horizontally in a meandering pattern on the stunning section, with the at least two stunning zones being arranged essentially horizontally in a meandering shape one above the other.
  • a further expedient embodiment of the invention is characterized in that the containers are transported through the at least two stunning zones by means of at least one of the transport conveyors essentially horizontally, with the at least one elevator device transporting the containers essentially vertically between at least two transport conveyors.
  • a further development is characterized in that the containers are transported in the course of the stunning section by the at least one elevator device between at least two of the superimposed stunning zones having at least one transport section, in order to form and set up vertical transport of the containers between at least two stunning zones, with at least one of the transport sections is bypassed.
  • the stunning route provided for transporting the containers is reduced.
  • a further useful embodiment of the invention is characterized in that a gas and/or a gas mixture is provided in the stunning chamber by means of at least one gassing device.
  • oxygen and/or an oxygen-containing gas mixture is provided in at least one of the stunning zones, preferably in the lowest of the stunning zones, by means of the at least one gassing device in order to form and set up an oxygen-containing gas mixture with a concentration of a stunning gas.
  • An expedient embodiment of the invention is characterized in that a gas flow of at least one gas and/or a gas mixture from a first stunning zone into a further stunning zone is provided in the stunning chamber by means of at least one gas flow device, preferably from the lowest stunning zone into at least one of the stunning zones above.
  • a further expedient embodiment of the invention is characterized in that the containers pass through at least three stunning zones one after the other in a substantially horizontal direction along the stunning section, namely a first phase I with a concentration of 5-25% stunning gas in the gas mixture, a second phase II with a concentration of 25-50% stunning gas in the gas mixture and a third phase III with a concentration of 50-100% stunning gas in the gas mixture.
  • These stunning zones each relate to the stunning zones that are adjacent to one another. So e.g. B. the provided gas mixture of a first stunning zone with a concentration of z. B.
  • 5-25% stunning gas in the gas mixture (phase I) independently of the gas mixture of a second stunning zone with a concentration of 25-50% stunning gas in the gas mixture (phase II) and this in turn independently of the gas mixture of a third stunning zone with a concentration of 50 -100% stunning gas in the gas mixture (phase III) passable.
  • the concentration of the stunning gas is preferably essentially constant within a stunning zone.
  • All containers expediently pass through at least three stunning zones one after the other in the horizontal transport direction T, namely a first phase I with a concentration of 5-25% stunning gas in the gas mixture, a second phase II with a concentration of 25-50% stunning gas in the gas mixture and a third phase III with a concentration of 50-100% stunning gas in the gas mixture.
  • the number of phases and their concentration ranges can of course vary.
  • a preferred embodiment is characterized in that possible fluctuations in the concentration of the stunning gas in the gas mixture behind the stunning zones with phases I to III are compensated for by increasing or reducing the concentration of the stunning gas in the gas mixture.
  • a preferred development of the invention is characterized in that possible fluctuations in the concentration of the stunning gas in the gas mixture in the stunning zones with phases I to III are compensated for by increasing or reducing the concentration of the stunning gas in the gas mixture, preferably by supplying at least one gas and/or or a gas mixture with the at least one gassing device.
  • the concentration of the stunning gas can be actively adjusted during transport if changes become necessary during the stunning process.
  • the gas concentration of the stunning gas in the gas mixture is monitored in at least one of the at least two stunning zones.
  • the monitoring is preferably carried out by means of a gas monitoring device which includes the device and which, for example, includes at least one sensor.
  • the device comprises at least one surveillance system, preferably a camera surveillance system, in order to monitor the stage and point of unconsciousness of the poultry animals.
  • monitoring of the stunning chamber is designed and set up, in particular by means of the camera monitoring system and/or through viewing windows.
  • the gas concentration present, for example the carbon dioxide content of up to 40% is monitored by means of the gas monitoring device (e.g. sensors), with the stunning distance or stunning time from entry to the "sweet point" of unconsciousness (up to 40% ) can be repositioned, shortened or lengthened as required.
  • FIG. 1 shows a schematic representation of a preferred embodiment of the device according to the invention in a side view
  • FIG. 2 shows a schematic representation of a preferred embodiment of the device according to the invention in plan view
  • FIG. 3 shows a schematic representation of a further preferred embodiment of the device according to the invention in a side view.
  • the device 10 according to the invention is described in more detail with reference to the aforementioned figures.
  • the device 10 shown in the drawings serves for the gas stunning of poultry animals, namely broilers, which are transported through a stunning chamber 12 arranged in individual containers 11 .
  • the device 10 according to the invention is also used in the same way for stunning poultry animals which are transported through the stunning chamber 12 in stacks of containers, ie in two or more containers arranged one above the other.
  • the device 10 is also suitable for stunning other types of poultry, such as geese, ducks or the like.
  • the device 10 comprises at least one stunning chamber 12 with at least two stunning zones 13, 14, 15, at least one input station 16 arranged on the inlet side of the stunning chamber 12 for the container 11 containing live poultry, and at least one output station 17 arranged on the outlet side of the stunning chamber 12 for the stunned poultry containing container 11, a transport device 18 is formed with at least one transport conveyor 19 and set up for transporting the container 11 from the input station 16 to the output transfer station 17 through the stunning chamber 12 along at least one transport route.
  • this device 10 is characterized in that the at least one stunning chamber 12 is arranged above ground and the at least two stunning zones 13, 14, 15 are designed and set up essentially horizontally one above the other, and that the gas mixture of the at least two stunning zones 13, 14 , 15 each have different concentrations of the stunning gas, with the concentration of the stunning gas in the gas mixture of the at least two stunning zones 13, 14, 15 increasing from the uppermost of the stunning zones 13 to the lowermost of the stunning zones 15, and that the transport device 18 is designed and set up in this way is that the containers 11 can be transported on the at least one transport path through the at least two stunning zones 13, 14, 15 in a substantially horizontal meandering manner along a stunning path in the stunning chamber 12.
  • the transport of the containers 11, which is designed and set up by means of the transport device 18, is illustrated in more detail with the aid of arrow symbols in order to show preferred transport directions T of the containers 11 when passing through the stunning section.
  • the embodiment of the device 10 shown in FIG. 1 has a total of three stunning zones 13, 14 and 15.
  • the number of stunning zones 13, 14, 15 can vary, but at least two stunning zones are provided in order to provide the required different stunning gas concentrations for stunning the poultry animals.
  • the stunning chamber 12 of the device 10 can comprise up to five stunning zones.
  • the transport device 18 preferably comprises a plurality of transport conveyors 19, the number of transport conveyors 19 corresponding at least to the number of stunning zones 13, 14, 15 provided.
  • a transport device 18 with a plurality of transport conveyors 19 is provided for transporting the containers 11 through the stunning chamber 12, which can be driven and controlled together or preferably separately.
  • the or each transport conveyor 19 is preferably designed and set up along the transport route for the essentially horizontal transport of the containers 11 along a transport route through at least a section of one of the stunning zones 13 , 14 , 15 .
  • the stunning chamber 12 in the embodiment of FIG. 1 is an open space chamber, but is preferably closed on all sides and sealed from the environment.
  • FIG. 2 which shows a top view of the device 10 according to the invention
  • a stunning chamber 12 with a transport device 18 for transporting containers 11 arranged in two rows 21, 22 is shown.
  • the invention includes embodiments that can transport more than one container 11 in width.
  • the required device components such. B. the transport conveyor 19, elevator devices 20, etc., can be adapted to the width of several containers 11 accordingly.
  • the two rows 21, 22 shown in FIG. 2 for transporting the containers 11 can be controlled either in parallel or independently.
  • the transport device 18, the input station 16 and/or the output station 17 preferably comprises/comprise at least one elevator device 20 for transporting the containers 11 essentially vertically.
  • several elevator devices 20 are provided, which each form and set up a vertical transport Tv of the containers 11 .
  • Both the input station 16 and the output station 17 each comprise an elevator device 20, as a result of which the containers 11 are preferably brought into or output from a level above the uppermost stunning zone 13 into the stunning chamber 12.
  • a gas mixture with a low or non-existent concentration of a stunning gas, ie less than 10%, is preferably present in the region above the uppermost stunning zone 13 .
  • the transport device 18 comprises in the embodiment of FIG.
  • Elevator device 20 preferably includes a transport conveyor 18 or means for transporting containers 11 in order to form and set up further transport of containers 11 after vertical transport Tv onto a transport conveyor 18 that is connected to elevator device 20 .
  • the or each input station 16 is preferably designed and set up for the vertical and/or horizontal feeding of the containers 11 onto the at least one transport route. More preferably, the or each delivery station 17 is designed and set up for the vertical and/or horizontal delivery of the containers 11 from the stunning chamber 12 .
  • the stunning chamber 12 preferably comprises a stunning space 25 with the at least two stunning zones 13, 14, 15, the containers 11 being fed through the at least two stunning zones 13, 14, 15 by means of at least one of the Transport conveyors 19 can be transported essentially horizontally and the at least one elevator device 20 is designed and set up for vertical transport T between at least two transport conveyors 19 .
  • the at least one elevator device 20 is preferably provided between the at least two stunning zones 13, 14, 15, which are located one above the other and have at least one transport section, in order to form and set up a vertical transport Tv of the containers 11 between at least two stunning zones 13, 14, 15, whereby at least one of the transport routes can be bypassed.
  • the elevator device 20 is preferably designed and set up in one of the stunning zones 13, 14, 15 such that when the container 11 is transported Tv, the distance of the corresponding stunning zone 13, 14, 15 can be reduced by means of the elevator device 20.
  • Bypass at transport Tu vessels 11 is formed and set up by means of the vertical transport Tv of the elevator device 20, as a result of which the containers 11 are preferably not transported over the entire potential distance of one of the stunning zones 13, 14, 15.
  • the stunning section provided for the transport of the containers 11 can more preferably be reduced. In this way, at a constant transport speed, the poultry animals are exposed to the gas concentrations of the stunning gas prevailing in the stunning zones 13, 14, 15 for a shorter period of time.
  • the transport device 18 and/or the at least one elevator device 20 can preferably be adapted to the poultry in such a way that, depending on the size and/or weight of the poultry, a variable transport speed and/or a variable stunning distance can be set in order to achieve a number and /or to provide weight specific stunning to the poultry in the containers 11.
  • a variable stunning section can be formed, for example, by changing the length of the stunning section, in that at least one of the elevator devices 20 forms and sets up a vertical transport Tv of the containers 11, whereby if at least one of the transport sections is bypassed, the containers 11 are transported Tu along the reduced stunning section . Due to the preferred bypass transport direction Tu of the containers 11 by means of at least one of the elevator devices 20, as illustrated in Fig. 1, Fig. 2 and Fig.
  • the length of the transport route or the stunning route can be increased depending on the size or the number of be variably adapted to the poultry animals to be fed.
  • Containers 11 with large poultry or a large number of poultry can, for example, be transported over the entire length of the stunning zones 13, 14, 15 and at the end of the stunning zones 13, 14 can be transported by means of the elevator devices 20 into the stunning zones 14, 15 below in order to train as long as possible stunning distance.
  • Containers 11 with poultry of medium size can be transported by means of an elevator device 20 arranged between two transport conveyors 19 in the course of the stunning zones 13, 14, 15 before the end 23 of the respective stunning zone into the stunning zones 14, 15 below.
  • Container 11 with small poultry can either directly by means of the input station 16 in a Deeper stunning zone 14, 15 are transported or bypass several transport routes by means of the elevator 20 devices.
  • the number of elevator devices 20 and their positions can vary. Overall, the number of stunning zones 13, 14, 15 can be reduced or increased based on the poultry transported in the containers 11.
  • the stunning chamber 12 is preferably designed as a closed stunning tunnel 24 .
  • the stunning section also runs essentially horizontally in a meander shape, with the at least two stunning zones 13, 14, 15 being arranged essentially horizontally in a meander shape one above the other.
  • the transport device 18 with the or each transport conveyor 19 forming a transport path is designed and set up along the stunning path for the essentially horizontally meandering transport of the containers 11 through the entire device 10 and correspondingly also from stunning zone 13 to stunning zone 15 .
  • the stunning tunnel 24 is preferably closed on all sides (with the exception of the openings 26 for feeding in and discharging the containers 11, ie at the input station 16 and at the output station 17).
  • FIG. 3 is designed and set up analogously to FIGS. 1 and 2, so that reference is made to the paragraphs above.
  • closable locks, flaps or the like are provided in the present stunning tunnel 24, preferably in the area of the elevator device 20, in order to create an opening between see the stunning zones 13, 14, 15 for a transport of the container 11 train and set up.
  • the at least one input and/or the at least one output station 16, 17 preferably comprises at least one gas barrier 27, designed and set up so that the gas mixture essentially remains in the stunning chamber 12 and/or that essentially no ambient gas enters the stunning chamber 21.
  • the gas barrier 27 can be designed and set up, for example, by means of a curtain, a lock device or by structural measures to form an air lock.
  • the at least one input and/or the at least one output station 16, 17 is arranged above the stunning chamber 12 or above the uppermost stunning zone 13 in order to form a secure and simple seal of the stunning chamber 12 from the environment.
  • the gas concentration of the stunning gas at the inlet and at the outlet, ie in the area of the at least one inlet and/or the at least one outlet station 16, 17, is particularly preferably close to zero (maximum 10%).
  • the stunning chamber 12 comprises at least one gassing device 28, designed and set up to provide a gas and/or a gas mixture in the stunning chamber 12.
  • a stunning gas or a gas mixture containing a stunning gas can preferably be made available in the lowest 15 of the at least two stunning zones 13, 14, 15 by means of at least one of the at least one gassing device 28 in order to form and set up a gas mixture with a first concentration of a stunning gas in the lowest stunning zone 15.
  • at least one of the at least one gassing device 28 can be used to provide oxygen and/or an oxygen-containing gas mixture in at least one of the stunning zones 13, 14, 15 in order to form and set up an oxygen-containing gas mixture with a concentration of a stunning gas.
  • the stunning chamber 12 preferably comprises at least one gas flow device 29, designed and set up to provide a gas flow G of at least one gas and/or a gas mixture from a first of the stunning zones 13, 14, 15 into a further one of the stunning zones 13, 14, 15, preferably from the lowest stunning zone 15 in at least one of the overlying stunning zones 14, 13.
  • the gas flow device 29 is particularly preferably designed and set up to supply a stunning gas and/or a gas mixture containing a stunning gas in the stunning chamber 12, preferably in the lowest stunning zone 15, in a flowing manner, the gas concentration of the stunning gas and/or the gas mixture containing the stunning gas being based on a maximum gas concentration of the stunning gas along the meandering Stun range gradually decreases.
  • the gas flow G of a gas and/or a gas mixture can flow through the stunning tunnel 24 along the meandering stunning path via at least one elevator device 20 from the lowest stunning zone 15 into at least one of the stunning zones 14, 13 above.
  • the gas flow G is shown schematically by means of arrow symbols pointing in the opposite direction to the stunning section and in the opposite direction to the transport direction T of the container 11 .
  • the intensity of the gas flow G gradually decreases starting from the gas flow device 29, wherein several gas flow devices 29 can be arranged inside the stunning chamber 12 in order to maintain a desired flow rate over the entire course of the stunning zones 13, 14, 15.
  • the gas flow device 29 is, for example, a flow machine, particularly preferably a fan.
  • Device 10 particularly preferably comprises a control and/or regulation unit - not shown in detail in the figures - by means of which the transport speed of the or each transport conveyor 19, the use of the at least one elevator device 20 and the composition of the gas mixture with regard to the concentration of the stunning gas in the gas mixture in at least one of the stunning zones 13, 14, 15 can be controlled and/or regulated. More preferably, by means of the control and / or regulation unit, the other components of the device 10, such as the or each input station 16, the or each output station 17 and/or the or each elevator device 20 as well as the gassing device 28 and/or the gas flow device 29 control/regulate. All device components can preferably be controlled and/or regulated separately and independently of one another. However, by means of the superordinate control and/or regulation unit, a coordinated and continuous functioning of the device 10 is ensured, in particular taking into account the poultry animals transported in the containers 11 .
  • an elevator device 20 is provided at the start 30 and/or at the end 31 of the transport section of each transport conveyor 19 in order to form and set up vertical transport Tv of the containers 11 .
  • the start 30 and end 31 of a transport conveyor 19 are provided with reference symbols as an example.
  • an elevator device 20 In front of and behind the transport conveyor 19 is an elevator device 20 which is designed and set up for the vertical transport Tv of the containers 11, whereby, for example, Tu the subsequent transport section of the subsequent transport conveyor 19 is bypassed.
  • the method is explained in more detail below with reference to the drawing.
  • the method is used for the gas stunning of live poultry intended for slaughter and located in containers 11 by means of a gas mixture containing a stunning gas.
  • the containers 11 containing the live poultry are fed into a stunning chamber 12 by means of at least one input station 16, the stunning chamber 12 being arranged above ground.
  • the containers 11 are then transported through at least two stunning zones 13, 14, 15 of the stunning chamber 12, which are arranged essentially horizontally one above the other, by means of a transport device 18 with at least one transport conveyor 19, the gas mixture of the at least two stunning zones 13, 14, 15 each having different concentrations of the stunning gas, the concentration of the stunning gas in the gas mixture of the at least two stunning zones 13, 14, 15 increasing from the uppermost of the stunning zones 13 to the lowermost of the stunning zones 15. Finally, the containers 11 containing the stunned poultry are discharged by means of a discharge station 17 .
  • this method is characterized in that the containers 11 are moved essentially horizontally meandering by means of the transport device 18 on the at least one transport route through the at least two stunning zones 13, 14, 15. be transported in such a way along a stunning path in the stunning chamber 12.
  • the containers 11 are preferably transported, at least in sections, by means of at least one elevator device 20 comprising the transport device 18, the input station 16 and/or the output station 17, essentially in the vertical Tv.
  • a plurality of elevator devices 20 are provided in each of FIGS. 1 to 3 in order to transport the containers 11, for example between the stunning zones 13, 14, 15 in the vertical Tv.
  • the containers 11 are transported essentially horizontally in a meandering pattern on the stunning section, with the at least two stunning zones 13, 14, 15 being arranged essentially horizontally one above the other in a meandering shape.
  • the containers 11 are transported through the at least two stunning zones 13, 14, 15 by means of at least one of the transport conveyors 19 essentially horizontally, with the at least one elevator device 20 transporting the containers 11 between at least two transport conveyors 19 essentially vertically transported.
  • the containers 11 are thereby transported in the course of the stunning section by the at least one elevator device 20 between at least two of the superimposed stunning zones 13, 14, 15 having at least one transport section, in order to achieve a vertical transport T of the containers 11 between at least two stunning zones 13, 14, 15 train and set up, whereby at least one of the transport routes Tu is bypassed.
  • the stunning route provided for the transport of the containers 11 is reduced.
  • a gas and/or a gas mixture is preferably provided in the stunning chamber 12 by means of at least one gassing device 28 .
  • the gas and/or gas mixture can more preferably be introduced by mechanical ventilation.
  • the introduced gas and/or gas mixture can be controlled as required and/or regulated.
  • a gas mixture with a first concentration of a stunning gas is particularly preferably provided in the lowermost 15 of the at least two stunning zones 13, 14, 15 by means of the at least one gassing device 28.
  • oxygen and/or an oxygen-containing gas mixture can be provided in at least one of the stunning zones 13, 14, 15, preferably in the lowest of the stunning zones 15, by means of the at least one gassing device 28 in order to produce an oxygen-containing gas mixture with a concentration to train and set up a stun gas.
  • the containers 11 can each pass through at least three stunning zones 13, 14, 15 along the stunning section in a substantially horizontal direction, namely a first phase I with a concentration of 5-25%.
  • Stunning gas in the gas mixture a second phase II with a concentration of 25-50% stunning gas in the gas mixture and a third phase III with a concentration of 50-100% stunning gas in the gas mixture.
  • a concentration of approx. 10% stunning gas in the gas mixture is particularly preferred in phase I, a concentration of approx. 40% stunning gas in the gas mixture in phase II and a concentration of approx. 60% stunning gas in the gas mixture in phase III (for a deep Unconsciousness, i.e.
  • anesthetic gas in the gas mixture for irreversible unconsciousness, brain death, i.e. "killed" is selected.
  • Gas concentrations can vary, as can the number of phases. Possible fluctuations in the preset values for the concentration of the stunning gas in the gas mixture can be compensated for by increasing or reducing the concentration of the stunning gas in the gas mixture, preferably by supplying at least one gas and/or a gas mixture with the at least one gassing device 28.
  • the corresponding Times of the containers 11 in the respective stunning zones 13, 14, 15 can be adjusted depending on the poultry transported therein, so that, for example, larger poultry (or a higher number of poultry per container 11) go through a longer stunning distance than smaller animals (or a smaller number of poultry per container 11).
  • the stunning period can be adapted to the stress resistance of the poultry, so that poultry that require a longer concentration of a stunning gas to achieve the desired states ("stunned", "killed” etc.) go through a longer stunning period than poultry that require a longer stunning gas concentration require less exposure to an anesthetic gas.
  • the gas concentration of the stunning gas in the gas mixture in at least one of the at least two stunning zones 13, 14, 15 is preferably monitored. Monitoring may also include a record of the information. The information can be used, for example, to control and/or regulate the gas concentration, the transport device 19 or the elevator device 20 and other parameters influencing the stunning process (e.g. transport speed).

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Housing For Livestock And Birds (AREA)

Abstract

L'invention concerne un appareil (10) qui est conçu et configuré pour étourdir des volailles vivantes situées dans des contenants (11) et destinées à l'abattage au moyen d'un mélange gazeux contenant un gaz d'étourdissement, l'appareil comprenant au moins une chambre d'étourdissement (12) ayant au moins deux zones d'étourdissement (13, 14, 15), un dispositif de transport (18) pourvu d'au moins un convoyeur de transport (19) qui est conçu et configuré pour transporter les contenants (11) le long d'au moins un trajet de transport, ladite chambre d'étourdissement (12) étant située au-dessus du sol et lesdites au moins deux zones d'étourdissement (13, 14, 15) étant conçues et configurées de façon à se trouver sensiblement à l'horizontale les unes au-dessus des autres, et le mélange gazeux desdites au moins deux zones d'étourdissement (13, 14, 15) présentant une concentration en gaz d'étourdissement différente dans chaque cas, la concentration en gaz d'étourdissement dans le mélange gazeux desdites au moins deux zones d'étourdissement (13, 14, 15) augmentant à partir de la plus haute des zones d'étourdissement (13) vers la plus basse des zones d'étourdissement (15), et le dispositif de transport (18) étant conçu et configuré de telle sorte que les contenants (11) puissent être transportés sensiblement horizontalement d'une manière sinueuse le long d'un trajet d'étourdissement dans la chambre d'étourdissement (12) sur ledit trajet de transport à travers lesdites au moins deux zones d'étourdissement (13, 14, 15). L'invention concerne en outre un procédé correspondant.
EP21839180.3A 2021-12-16 2021-12-16 Appareil et procédé d'étourdissement de volaille dans une chambre d'étourdissement au-dessus du sol Pending EP4447687A1 (fr)

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JP7738192B2 (ja) 2025-09-11
WO2023110107A1 (fr) 2023-06-22
JP2024542690A (ja) 2024-11-15

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