WO1994027425A1 - Traitement de petits animaux - Google Patents

Traitement de petits animaux Download PDF

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Publication number
WO1994027425A1
WO1994027425A1 PCT/GB1994/001152 GB9401152W WO9427425A1 WO 1994027425 A1 WO1994027425 A1 WO 1994027425A1 GB 9401152 W GB9401152 W GB 9401152W WO 9427425 A1 WO9427425 A1 WO 9427425A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
treatment
container
poultry
treatment plant
Prior art date
Application number
PCT/GB1994/001152
Other languages
English (en)
Inventor
Harvey William Jull
Edward Thomas Clarke
Andrew Maria Morawiecki
Robert Oliver Buckingham
Original Assignee
Sun Valley Poultry Limited
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
Priority claimed from GB939311351A external-priority patent/GB9311351D0/en
Priority claimed from GB939323066A external-priority patent/GB9323066D0/en
Application filed by Sun Valley Poultry Limited filed Critical Sun Valley Poultry Limited
Priority to CA002164114A priority Critical patent/CA2164114A1/fr
Priority to EP94916312A priority patent/EP0701396A1/fr
Priority to AU68016/94A priority patent/AU6801694A/en
Priority to BR9406780A priority patent/BR9406780A/pt
Priority to GB9622812A priority patent/GB2306096B/en
Publication of WO1994027425A1 publication Critical patent/WO1994027425A1/fr

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Classifications

    • 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
    • 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
    • A01K45/00—Other aviculture appliances, e.g. devices for determining whether a bird is about to lay
    • A01K45/005—Harvesting or transport of poultry
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22B—SLAUGHTERING
    • A22B3/00—Slaughtering or stunning
    • 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

Definitions

  • This invention is concerned with improvements relating to the treatment of small animals, and particularly concerns a treatment plant for the humane stunning or killing of small animals, particularly but not exclusive poultry.
  • EP-A-434278 a method and apparatus for the slaughter of poultry involving the use of anaesthetising effect of carbon dioxide, to which specification reference should be made for further information.
  • difficulty has been encountered in providing a plant for putting this practice into effect, particularly in relation to a high volume throughput.
  • a treatment plant comprising a chamber, means for maintaining a controlled environment within the chamber, an inlet through which a container may be moved, means to move the container through the inlet into the chamber, a means for moving the container through the chamber, and means to move the container from the chamber.
  • the present invention may be put into practice by one or more of the following techniques:
  • a gas having an anoxic or anaesthetising effect (hereinafter referred to as being the treatment gas) which is denser than air.
  • gases may include argon, krypton, xenon, and carbon dioxide;
  • treatment gas which is less dense than air, such as helium, neon or nitrogen;
  • treatment gas a gas from which oxygen has been removed, such as by the use of burning, and/or using an oxygen absorbent substance;
  • the same mechanism may be used both to move the container through the inlet into the chamber, and to move the container through the chamber. Similarly the same mechanism may be utilised both to move the container through the chamber and to move the container from the chamber.
  • a carousel mechanism may be utilised, operating on a continuous basis, onto which containers are placed, and by which containers are moved through the inlet into the chamber, through the chamber and through an outlet from the chamber.
  • the inlet and the outlet are provided at the same location in respect of the chamber.
  • the treatment plant comprises delivery mechanism to deliver containers, preferably serially, whether serially individually or serially in groups, to the vicinity of the inlet, and to convey containers from the vicinity of the outlet.
  • the plant comprises means to convey the containers from the inlet into the treatment chamber in a heightwise direction, and from the chamber to the outlet in a heightwise direction.
  • the treatment plant comprises means for maintaining a controlled atmosphere in the chamber comprising a gas or a mixture of gases having a density less than that of air
  • said means is operative to convey the containers from the inlet upwardly into the controlled environment.
  • said means is operative to convey the containers from the inlet downwardly into the controlled environment.
  • an inlet shaft may extend downwardly from the inlet opening to the chamber and an outlet shaft may extend upwardly from the chamber to the outlet opening, the chamber and said shafts being sealed against the escape of treatment gases below the inlet and outlet openings.
  • Such a plant is particularly suitable for use where the treatment with which the chamber is concerned involves use of heavier than air gases such as carbon dioxide, for example when in admixture of an inert gas such as argon.
  • the containers with which the plant is used, together with the conveying means, such that in horizontal cross-section, the containers entering the treatment plant occupy only a proportion of the cross- section of the inlet and outlet shafts, e.g. no more than 75%, preferably 65% or less, to prevent gases being removed from the chamber unduly by the piston-like effect of containers as they move within the inlet and outlet shafts.
  • the containers are such that, in vertical cross-section, they occupy only a proportion of the cross-section of the treatment chamber, similarly no more than 75%, preferably 65% or less to prevent gases removed from the chamber unduly by the piston like effect of containers as they move through the chamber.
  • the inlet and outlet openings may be sideways open, but are preferably upwardly open.
  • the plant comprises loading mechanism for moving a container from a loading station adjacent to the inlet opening to a position in which said container may be engaged with first vertically movable means (e.g. lowering means) and preferably the plant comprises unloading mechanism for moving a container from engagement with the second vertically movable means (e.g. lifting means) to an unloading station adjacent to the outlet opening.
  • the lifting and lowering means, together with the loading and unloading mechanisms may each be adapted to move a single container at a time, but preferably are adapted to move more than one container at a time, such as two or three.
  • a treatment plant comprising a chamber, means for maintaining within the chamber a controlled environment comprising a gas or mixture of gases having an anoxic or anaesthetising effect (hereinafter referred to as a treatment gas) on poultry, and having a density different to that of air, means for maintaining an interface between said treatment gas and air, means for conveying poultry through the interface into the treatment gas, and means to convey the poultry from the treatment gas subsequent to the treatment gas having had the desired effect.
  • a treatment gas a gas or mixture of gases having an anoxic or anaesthetising effect
  • the intermediate step is carried out of conveying the poultry through the treatment gas, whereby the poultry is retained in the treatment gas for a desired period of time.
  • the treatment plant may comprise a well within which the treatment gas is maintained by virtue of its high density, the poultry being conveyed into the well for the treatment gas to have the required effect on the poultry, prior to lifting of the poultry from the well for further processing.
  • the treatment plant may comprise an upper chamber in which the treatment gas is maintained by virtue of its lower density, the conveyor means being operative to convey the poultry upwardly through the interface and into the treatment gas, and subsequently downwardly from the treatment gas through the interface.
  • the treatment gas may comprise a gas or mixture of gases from which oxygen has been removed, such as by burning an appropriate material to remove the oxygen, such as methane, and/or by the use of oxyphilic substances to absorb the oxygen, or residual oxygen.
  • the poultry is conveyed through the chamber in containers, the containers conveniently holding a plurality of poults, the containers being conveyed through the chamber serially or in batches.
  • the plant is adapted for use in the handling of containers generally in the form described in the specification of our European Patent EP-B- 0061869.
  • the plant comprises means for the automatic removal of such containers from the module or framework, and for conveying the containers serially or in groups to the loading station.
  • Such conveyor mechanism is tunnelled to shield the poultry thereby to reduce stress otherwise encountered by their subjection to light and movement.
  • means for applying a cover to the containers prior to entry thereof into the treatment chamber, whereby the containers pass through the treatment chamber with a cover, together with means for removal of the cover subsequent to the emergence of the container from the treatment plant.
  • the covers are open-bottomed and may be deformed over the container, being moved downwardly over the open top thereof, snap-fit means being provided to ensure that the cover is contained on the container during its travel through the treatment plant.
  • the covers are open at one end, facilitating the location of the cover over the container by lateral relative movement therebetween.
  • the construction and arrangement is such that, as a container is pushed from the tunnel, it passes into the cover and engages the end wall of the cover and further conveying movement causes the container and the cover to pass to the loading station.
  • disengagement means is provided downstream of the treatment plant, to separate the cover and the container, conveniently by relative movement therebetween opposite to that by which the cover was applied to the container.
  • transfer means is provided to return such separated covers to a location at which they may be reapplied to incoming containers.
  • Each cover may be suitable in size for an application to a single container, or may be suitable for application to a plurality of containers, conveniently that number which is fed simultaneously through an inlet opening at the loading station.
  • an observation station is provided, enabling visual inspection of the poultry in the containers prior to their entry into the treatment chamber.
  • a method of the humane killing of poultry involving subjection of the poultry to a gas having a high carbon dioxide content, wherein the poultry is conveyed to the plant in containers having open tops, and wherein a temporary cover is provided to the containers prior to movement of the containers into a treatment chamber for subjection of the poultry to the treatment gas.
  • the containers are moulded from plastics material, being open-topped and having side and bottom walls provided with apertures to allow for the free flow of air therethrough, the cover comprising a top and at least two side walls to be engaged with the side walls of the container.
  • Preferably means is provided to prevent the inadvertent removal of the cover from the container during its passage through the treatment plant, such as by interlocking formations engageable by relative movement between the cover and the container in one direction.
  • interlocking means may be snap-fitting in one direction of relative movement therebetween.
  • the cover may be moulded of plastics material and may be applied to the container by relative movement therebetween the heightwise direction of the container, i.e. over the open top thereof, conveniently the side walls of the cover springing apart a short distance on passage over the side walls of the container, and moving together on completion of the location of the cover over the container.
  • the construction and arrangement may be such that the container may be entered into the cover by relative longitudinal movement therebetween, such as by a location of the cover in a path of travel of the container, so that the container enters the cover during its travel towards the treatment plant.
  • the cover has at least one open end wall, but preferably one end thereof is closed.
  • the cover may be provided with small apertures to allow for the permeation of gas into the container, during treatment of the poultry, whilst preventing undue turbulence of the gases within the treatment plant caused by wing flapping of the poultry in the container.
  • the apertures are of sufficiently small size additionally to prevent the emergence of detritus from the container into the treatment plant during passage thereof through the treatment plant, such as small feathers.
  • a treatment plant comprising a chamber, means for maintaining a controlled environment within the chamber including maintaining within the chamber a gas or mixture of gases predominantly devoid of oxygen, and maintaining the poultry within the treatment chamber for a sufficient period of time for the poultry to be stunned or killed.
  • the treatment gas comprises one or more anaesthetising gases, such as carbon dioxide.
  • anaesthetising gases such as carbon dioxide.
  • such means may be in the form of an inlet located adjacent to the outlet chamber, by which fresh treatment gas is fed into the treatment chamber, to flow outwardly through the inlet chamber in a purging operation.
  • the invention may be utilised in a batch process, in which small animals (such as in crates) is loaded into a treatment chamber, and subsequent to completion of loading the chamber is closed, and purged with treatment gas.
  • the treatment gas may be heavier than atmosphere, the chamber thus conveniently being purged from the bottom, or the treatment gas may be lighter than atmosphere, the treatment plant being enclosed at the top and being purged from the top.
  • the invention set out in the last preceding paragraph but one is conveniently utilised during a transportation operation involving the transportation of the poultry from (e.g.) a farm area to a processing plant, and in accordance with a further aspect of this invention there is provided a method of transportation of poultry, involving the use of a treatment plant of the kind set out in the last preceding paragraph but one, and utilising said treatment plant to humanely stun or kill the poultry during such transportation.
  • FIGURE 1 is an exploded perspective view showing the plant which is the preferred embodiment of this invention.
  • FIGURES 2, 3 and 4 are views showing the application of a cover to a container, in the performance of the preferred method of killing poultry;
  • FIGURE 5 is a schematic sectional view of a treatment chamber of the plant.
  • FIGURES 6 - 10 are respective schematic views of five alternative embodiments.
  • the treatment plant which is the preferred embodiment of this invention is specifically for use in the killing of poultry, involving the subjection of the poultry to an anaesthetic and noxious gas mix, as may be afforded by a mixture of carbon dioxide and an inert carrier gas such as argon, having a low oxygen content.
  • the plant comprises a delivery station D, comprising a vertically movable platform 6 onto which conveniently a plurality of containers C, typically containing 24 chickens each, may be deposited, a ram 8 being operable to transfer the containers in groups of three from the stack onto a first stretch 10 of passive conveyor.
  • the ram 8 operates in steps, such that in each step one container at a time is pushed onto a second stretch 12 of passive conveyor, along which the container is moved by a second ram 14.
  • the ram retracts, and the platform 6 is elevated to present the second tier of containers of the stretch 10 of conveyor.
  • the first and second stretches 10 and 12 of conveyor are enclosed by tunnelling 16, to reduce unnecessary stress to the poultry within the containers by shielding them from light and movement, conveniently a piston of the ram 14 extending through an end wall of the tunnel.
  • an inspection window may be provided, to enable the chickens within each container to be visually inspected, means conveniently being provided for the removal of any chicken which should need to be removed from a container.
  • the treatment plant comprises a chamber within which the chickens are subject to a treatment gas, from which two vertical shafts 42, 44 extend.
  • Each of the vertical shafts if open at the top, the opening 46 of the shaft 42 providing an inlet opening, whilst the opening 48 of the shaft 44 provides an outlet opening.
  • Means 20 is provided (shown schematically in Figures 1 and 5) connected to the chamber for maintaining a controlled atmosphere within the chamber 40, the treatment gases being heavier than air remaining within the chamber 40, and up to about half way within the vertical shafts 44, 46.
  • treatment chamber 40 is sealed against the escape of gas, other than at the openings 46 and 48, although an access door may be provided to enable entrance into the tank 40 for cleaning an maintenance purposes.
  • a loading station Adjacent to the inlet opening 46 is a loading station afforded by a fixed platform 50, onto which containers are pushed in groups of three, although of course the containers may be loaded onto the platform singly, or in groups of two, or more than three.
  • a lowering mechanism 52 Movable within the shaft 42 is a lowering mechanism 52, movable between a position in which it is level with the loading platform 50, and a lower position in which it is level with a passive conveyor 41 extending through the chamber.
  • a loading ram 58 is advanced to push three containers at a time onto the platform 54, whereupon the ram 52 retracts to lower the containers down the shaft 42 to their lowermost positions, at which an advancement ram 60 pushes said three containers one stage in the forward direction towards the shaft 44, whereupon the ram 60 retracts.
  • the lowering mechanism operates again, to lower the next series of three containers into the treatment chamber 40.
  • the treatment plant comprises a lifting mechanism 66, comprising a platform 68 which is movable within the shaft 44 to a position adjacent to an unloading platform 70, an unloading mechanism 72 being provided to push three containers from the platform 68 when in its upper position onto the platform 70.
  • each group of container As each group of container is advanced within the horizontal stretch 41 of the treatment chamber 40, it pushes the groups of containers in advance thereof forwardly, and the endmost group of containers (that is those closest to the shaft 44) are pushed onto the platform 68, for elevation through the outlet opening 48 to the unloading station 70. ⁇ 1
  • Further conveying mechanism 80 is provided to advance the containers from the unloading platform 70 onto a further stretch 82 of conveyor.
  • a cover 90 Prior to entrance into the treatment chamber 40, means is provided to apply a cover 90 to each container, conveniently at the point where it emerges from the tunnel 16.
  • a typical cover is shown in Figures 2, 3 and 4, comprising side walls 92, 92 and a top 94.
  • a cam formation 95 is provided, enabling the cover to be placed on the container C as it emerges from the tunnel 16, by downward movement, engagement by the formations 94 with the container springing the side walls 92 apart ( Figure 3), the walls returning to their rest positions as the cam formations pass into engagement with chamfered edges 96 of the container.
  • the cover 90 may be positioned in the path of advancement of the container, so that the conveyor enters into the cover through an open end thereof, the opposite end conveniently being closed so that further movement of the container carries the cover with it onto the loading platform 50.
  • the unloading platform 70 to remove the covers from the containers, and to return the covers along path P for reuse.
  • the covers are provided with small apertures, whereby to permit flow of treatment gases into the interior of the container, but of insufficient size to allow any significant turbulence to be caused by wing flapping within the container.
  • a cover is shown for each individual container, if desired a single cover may embrace a plurality of containers, such as the number handled simultaneously by the lowering and lifting mechanisms.
  • the sizes of the containers in relation to the number simultaneously fed into the chamber 40, and in relation to the size of the shafts 42 and 44, and the size of the chamber 40, and the speed with which the containers are fed through the treatment chamber, is such as to minimise pumping action as may tend to cause gases to be displaced from the chamber to the outlet shaft in particular.
  • the treatment gases reach a level of half-way up the shafts 42 and 44, a high accuracy of the content of treatment gases within the chamber 40 may be maintained, ensuring a high degree of effectiveness of treatment, together with only minimal loss of treatment gases.
  • the cross-sectional areas of the containers is no more than 75% of the cross-sectional area of the shafts, preferably 65% or less.
  • Figure 5 is a schematic view of the treatment plant, showing alternative arrangements of inlet and outlet into the access shafts 42 and 44.
  • gas flows through the chamber 40 in a direction opposite to that in which the containers C are moved through the chamber, from an inlet 90 to an outlet 92.
  • sensors 94 are located at spaced positions along the chamber, to verify that the level of oxygen in the gas within the chamber contains a sufficiently low oxygen level. If desired, the height of the chamber increases slightly in the direction from the outlet shaft 44 to the inlet shaft 42, as shown in Figure 5.
  • the conveyor 41 is located a short distance above an apertured floor 96, allowing for convenient cleaning of the interior of the chamber 40, a drain 98 being provided if desired.
  • the inlet 46a. and the outlet 48a. extend in the vertical plane, rather than in the horizontal plane as shown in Figure 1.
  • the treatment plant which is the first alternative embodiment of this invention, illustrated in Figure 6 comprises a treatment tank 106 in which a controlled, enclosed environment may be maintained, an inlet 108 and an outlet 110 opening into a roof 112 of the chamber 106.
  • a carousel 114 Mounted within the treatment chamber 106 is a carousel 114, comprising a plurality of hanging platforms 116 suspended from a periphery of the carousel, each platform 116 being capable of supporting and conveying in a generally horizontal disposition a container or crate 118 containing poultry.
  • Drive means (not shown) for the carousel is operative to rotate the carousel in a stepwise manner so as to bring each platform 116 in turn alongside a loading station 120, at which a crate 118 conveyed to the loading station 120 by a conveyor 122 may be moved from the conveyor 122 onto a platform 126 by a loading ram 124.
  • Adjacent to the outlet 110 is an unloading station 126, at which an unloading ram 128 is provided to move a container 118 from a platform 116 at the unloading station onto a conveyor 130, by which the container may be conveyed from the vicinity of the treatment plant.
  • Means 132 is provided to maintain in the chamber 106 a treatment gas which is heavier than air, the treatment gas comprising a mixture of carbon dioxide and nitrogen, although argon may be utilised in part at least to replace the nitrogen.
  • the treatment gas being heavier than air, falls to the lower part of the tank, although desirably to reduce loss of treatment gas a small upper volume of the treatment chamber contains air, the boundary between the air and the treatment gas being indicated by an interface 134 shown in Figure 6.
  • a desirable treatment gas which is anoxic and/or anaesthetic is maintained in the chamber 106, and the carousel 114 is rotated in a stepwise manner.
  • a container 118 containing live poultry is loaded by the ram 124 onto a platform 116, and on continued rotation of the carousel the container is immersed into the treatment gas.
  • the specific number of platforms 116 provided on the carousel, together with the speed of rotation, is such that, by the time the containers emerge from the outlet 110, the poultry in the container has been stunned or killed, as is desired.
  • the unloading ram 128 is operated to transfer the container from the platform 116 onto the conveyor 130, by which the poultry is conveyed to subsequent treatment operations, which may include de-feathering and evisceration.
  • the carousel may be rotated on a continuous basis, automatic means being operative to ensure that a platform 116 picks up the container 118 as it passes the loading station 120, and deposits its container as it passes the unloading station 126.
  • the treatment plant which is the second alternative embodiment of the invention (shown in Figure 2) utilises a treatment gas which is lighter than air, and the treatment plant 140 thus has an inlet 142 and outlet 144 provided in the lower part of the chamber.
  • a conveyor 146 Mounted in the upper part of the chamber is a conveyor 146, a lifting ram 148 being provided to lift containers in sequential order from a loading conveyor 150 upwardly into the treatment chamber 140, a transfer ram 152 being provided to transfer each container in turn from the lifting ram 148 onto the conveyor 146.
  • Operative through the outlet 144 is an unloading ram onto which the containers are moved in turn from the conveyor 146, a transfer ram 156 being provided to transfer containers from the unloading ram when in its lower position to a further conveyor 158.
  • Means 160 is provided to maintain a controlled environment within the upper part of the chamber 140, said means being operative to provide in said upper part an atmosphere consisting of lighter than air gases, such as helium, and including sensors (not shown) within the chamber 140.
  • an atmosphere consisting of lighter than air gases, such as helium, and including sensors (not shown) within the chamber 140.
  • Being devoid of oxygen, poultry passing through the treatment chamber on the conveyor 146 are humanely killed, the speed of operation of the various conveyors, together with the length of the chamber 140 being selected to ensure that the poultry is retained in the treatment atmosphere for the desired period of time.
  • controlled atmosphere may include an anaesthetic gas, to stun the poultry prior to killing.
  • the carousel 114 of the first alternative embodiment mav be used in conjunction with the chamber 140 of the second alternative embodiment.
  • the third alternative embodiment illustrated in Figure 8 utilises as treatment gas a gas which has a density similar to that of air, but from which oxygen has been removed, and/or to which carbon dioxide has been added.
  • the treatment plant which is the third embodiment of the invention comprises a treatment chamber 170 through which crates 172 containing poultry are fed by a conveyor 174, an intermediate conveyor 176 being utilised to transfer the crates 172 from a delivery conveyor 178 through an inlet zone 180 onto the conveyor 174, and an intermediate conveyor 182 being utilised to feed crates from the conveyor 174 through an outlet zone 184 onto a removal conveyor 186. In this manner escape of gases constituting the controlled environment of the treatment tank 170 may be reduced.
  • an inlet means 188 is provided by which gases to maintain the controlled environment are fed from a control means 189 into the outlet zone 184, gas flowing backwardly through the treatment chamber 170 and exiting from the inlet zone 180, reducing tendency for air to be entrained into the treatment chamber 170 as crates 172 are passed into the treatment plant.
  • the control means 189 comprises sensors (not shown) operative to determine the constitutency of the gases within the chamber 170.
  • the gases which constitute the controlled environment of the third embodiment is conveniently air from which oxygen has been removed by the use of burning methane therein, together with the use of oxyphilic substances to absorb residual oxygen, care being taken to ensure the absence of carbon monoxide, and to remove excess heat from the gas prior to admission to the chamber 170.
  • the length of the chamber 170, together with the speed of operation of the various conveyors, is such as to ensure subjection of the poultry to the effects of the treatment gas for an adequate period of time.
  • the treatment plant which is the fourth alternative embodiment of this invention comprises an elongate, open-topped tank 200 divided by vertical walls into a plurality of treatment zones 202a, 202b, 202c, etc.
  • a vertical platform 204 is provided, which may be lifted by a ram 206 from a position adjacent to the open top of the treatment zone to a lowermost position, as shown in Figure 9.
  • a delivery conveyor 208 Running alongside the treatment chamber is a delivery conveyor 208, loading rams 210a, 210b, 210c, etc. being provided adjacent to each of the treatment zones, opposite to unloading rams 212a, 212b, 212c, etc.
  • crates 214 containing live poultry are conveyed to towards the treatment plant by the conveyor 208.
  • a loading ram 210 With the ram 206 in its elevated position, a loading ram 210 will advance a crate 214 onto the platform 204, subsequent to which the ram 206 will retract, lowering the crate into the treatment chamber.
  • the crate On immersion of the poultry in the controlled environment for a desired period of time, the crate is elevated by the ram 206, and the unloading ram 212 is utilised to move the crate from the platform 204 onto an unloading conveyor 218 conveniently disposed above the conveyor 208.
  • the inlet opening into the chamber is provided by the same formation which provides the outlet through which poults are conveyed from the chamber.
  • the treatment chamber 200 is shown open-topped, and the environment, under control of control means (not shown) is heavier than air, such as a mixture of nitrogen and carbon dioxide, it will be appreciated however that the fourth embodiment may be utilised with a lighter than air treatment gas, simply by inverting the treatment chamber 200, and arranging that the loading rams 206 move the containers into the controlled environment by upward movement through an open bottom.
  • Figure 10 illustrates the application of this invention to a treatment plant suitable for use in treating the poultry whilst it is being conveyed from (e.g.) a farm to a poultry treatment plant.
  • Figure 10 illustrates schematically a lorry into a body 218 of which crates 220 are capable of being stacked (such as by a fork lift truck) in a conventional manner.
  • the opening of the body 218 such as the tail gate 222
  • the body is substantially airtight.
  • Means is provided to pump into the interior of the body 218 a treatment gas, conveniently comprising a mixture of nitrogen and carbon dioxide, to purge oxygen-containing gases from the body conveniently through an outlet 224 located at a upper part of the body.
  • control means is provided adjacent to the outlet 224 to detect the emission of significant proportions of carbon dioxide in the vented gases, to terminate or reduce the operation of the inlet means. Desirably however a slow continuous feed is maintained, to ensure that the desired treatment atmosphere is maintained within the body 218.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • Birds (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Processing Of Meat And Fish (AREA)

Abstract

On étourdit la volaille en la soumettant à un gaz de traitement ayant un effet anesthésique et/ou nocif. On utilise une chambre (40, 106, 140, 170, 200, 218) dans laquelle est amené le gaz de traitement et où est maintenu un environnement de traitement. Des caisses à claire-voie (18, 48, 72, 114) sont amenées par un mécanisme de transport (22, 50, 78, 108) à proximité d'une entrée (8, 42, 80, 102a, 102b, 102c), et un mécanisme est utilisé pour acheminer les conteneurs à l'admission et les introduire dans la chambre, et de préférence les faire passer par la chambre vers une sortie (10, 144, 184, 102a, 102b, 102c), à partir duquel les caisses à claire-voie sont acheminées par un autre mécanisme. La vitesse à laquelle les conteneurs sont acheminés dans le gaz de traitement de la chambre est telle que l'abattage ou l'étourdissement de la volaille peut s'effectuer lors de son passage, de l'entrée à la sortie.
PCT/GB1994/001152 1993-06-02 1994-05-27 Traitement de petits animaux WO1994027425A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002164114A CA2164114A1 (fr) 1993-06-02 1994-05-27 Traitement des petits animaux
EP94916312A EP0701396A1 (fr) 1993-06-02 1994-05-27 Traitement de petits animaux
AU68016/94A AU6801694A (en) 1993-06-02 1994-05-27 The treatment of small animals
BR9406780A BR9406780A (pt) 1993-06-02 1994-05-27 Instalação de tratamento processo de transporte de aves domésticas e processo de abater aves domésticas de maneira humana
GB9622812A GB2306096B (en) 1993-06-02 1994-05-27 The treatment of small animals

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB939311351A GB9311351D0 (en) 1993-06-02 1993-06-02 The treatment of small animals
GB9311351.2 1993-06-02
GB9323066.2 1993-11-09
GB939323066A GB9323066D0 (en) 1993-11-09 1993-11-09 Treatment of small animals

Publications (1)

Publication Number Publication Date
WO1994027425A1 true WO1994027425A1 (fr) 1994-12-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/001152 WO1994027425A1 (fr) 1993-06-02 1994-05-27 Traitement de petits animaux

Country Status (8)

Country Link
EP (1) EP0701396A1 (fr)
CN (1) CN1126941A (fr)
AU (1) AU6801694A (fr)
BR (1) BR9406780A (fr)
CA (1) CA2164114A1 (fr)
HU (1) HUT73292A (fr)
PL (1) PL311875A1 (fr)
WO (1) WO1994027425A1 (fr)

Cited By (17)

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EP0664957A1 (fr) * 1994-01-27 1995-08-02 Anglia Autoflow Limited Traitement de volaille
EP0956766B1 (fr) * 1998-05-26 2000-03-22 Hubert Vanhaecke Procédé et dispositif pour décharger des caisses d'un containeur sur un convoyeur de transfer
WO2002076219A2 (fr) * 2001-03-27 2002-10-03 Banss Schlacht- und Fördertechnik GmbH Installation d'anesthesie au gaz pour animaux de boucherie
NL1018486C2 (nl) * 2001-07-06 2003-01-16 Stork Pmt Verdoven bij de verwerking van slachtdieren.
NL1020106C2 (nl) * 2002-03-04 2003-09-05 Stork Mps Bv Inrichting voor het verdoven van slachtdieren, in het bijzonder varkens.
NL1022288C2 (nl) * 2002-12-31 2004-02-18 Stork Pmt Werkwijze en inrichting voor het verwerken van slachtdieren.
EP1405564A1 (fr) * 2002-10-01 2004-04-07 Linco Food Systems A/S Procédé et système d'etourdissement au gaz des volailles
WO2004064528A1 (fr) * 2003-01-22 2004-08-05 Linco Food Systems A/S Procede et systeme d'etourdissement au gaz de volailles destinees a l'abattage
EP1495678A1 (fr) * 2003-07-07 2005-01-12 Messer Group GmbH Gaz pour un abattoir
FR2863453A1 (fr) * 2003-12-10 2005-06-17 Agronomique Inst Nat Rech Procede d'etourdissement des palmipedes par exposition au protoxyde d'azote
WO2007107718A1 (fr) * 2006-03-21 2007-09-27 Secretary Of State For Environment Food And Rural Affairs Appareil pour asphyxier un animal
DE102012100480B3 (de) * 2012-01-20 2013-05-02 Banss Schlacht- und Fördertechnik GmbH Verfahren zum Betäuben eines Schlachttieres
CN104768382A (zh) * 2012-09-10 2015-07-08 林科食品系统公司 用于监测鸟的气体致晕的方法与监测系统
WO2018191284A1 (fr) * 2017-04-10 2018-10-18 Baader Linco, Inc. Étourdissement atmosphérique commandé
EP3417712A1 (fr) * 2017-06-20 2018-12-26 Cm2A Installation d'étourdissement par gaz de volailles avant abattage
WO2023031382A1 (fr) * 2021-09-06 2023-03-09 Bernd-Tönnies-Stiftung C/O Göke & Partner Installation d'étourdissement et procédé d'étourdissement respectueux des animaux et économique d'un animal de boucherie
WO2024033573A1 (fr) * 2022-08-11 2024-02-15 Honkajoki Oy Appareil d'abattage et procédé d'abattage de bétail

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CN101828587A (zh) * 2010-06-01 2010-09-15 张国栋 生猪扑杀方法
NL2006081C2 (en) * 2011-01-27 2012-07-31 Meyn Food Proc Technology Bv Method and processing line for stunning and/or killing of poultry.
EP2674032B1 (fr) * 2012-06-14 2017-05-03 Linde Aktiengesellschaft Procédé à base de dioxyde de carbone et système pour abattre la volaille en masse sans cruauté et stérilisation des abris d'élevage
DK3292753T3 (da) * 2016-09-12 2020-02-17 Linco Food Systems As Losningssystem og fremgangsmåde til losning af transportenheder til levende fjerkræ
CN106614361B (zh) * 2016-12-29 2019-05-17 安徽省田丰牧业科技有限公司 一种羊屠宰前减少应激的处理方法
CN107593519A (zh) * 2017-11-02 2018-01-19 湖南三尖农牧有限责任公司 一种用于鸡舍的自动化操作台
CN112352810A (zh) * 2020-11-09 2021-02-12 程士菊 一种利用二氧化碳杀畜装置

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EP0061869A1 (fr) * 1981-04-01 1982-10-06 Anglia Autoflow Limited Système de transport pour menu bétail, et son appareillage
DE3724067A1 (de) * 1987-07-21 1989-02-02 Josef Haas Belueftungssystem fuer tauben-transporter
EP0434278A1 (fr) * 1989-12-21 1991-06-26 The BOC Group plc Traitement de volaille
EP0441633A2 (fr) * 1990-02-08 1991-08-14 Slagteriernes Forskningsinstitut Procédure et installation pour assommer des animaux de boucherie dans des abattoirs

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664957A1 (fr) * 1994-01-27 1995-08-02 Anglia Autoflow Limited Traitement de volaille
EP0664957B2 (fr) † 1994-01-27 2001-01-24 Anglia Autoflow Limited Traitement de volaille
EP0956766B1 (fr) * 1998-05-26 2000-03-22 Hubert Vanhaecke Procédé et dispositif pour décharger des caisses d'un containeur sur un convoyeur de transfer
WO2002076219A2 (fr) * 2001-03-27 2002-10-03 Banss Schlacht- und Fördertechnik GmbH Installation d'anesthesie au gaz pour animaux de boucherie
WO2002076219A3 (fr) * 2001-03-27 2004-03-25 Banss Schlacht & Foerdertech Installation d'anesthesie au gaz pour animaux de boucherie
NL1018486C2 (nl) * 2001-07-06 2003-01-16 Stork Pmt Verdoven bij de verwerking van slachtdieren.
NL1020106C2 (nl) * 2002-03-04 2003-09-05 Stork Mps Bv Inrichting voor het verdoven van slachtdieren, in het bijzonder varkens.
US7097552B2 (en) 2002-10-01 2006-08-29 Linco Food Systems A/S Method and system for gas stunning of poultry for slaughter
EP1405564A1 (fr) * 2002-10-01 2004-04-07 Linco Food Systems A/S Procédé et système d'etourdissement au gaz des volailles
NL1022288C2 (nl) * 2002-12-31 2004-02-18 Stork Pmt Werkwijze en inrichting voor het verwerken van slachtdieren.
US7438637B2 (en) 2003-01-22 2008-10-21 Linco Food Systems A/S Method and system for gas stunning of poultry for slaughter
WO2004064528A1 (fr) * 2003-01-22 2004-08-05 Linco Food Systems A/S Procede et systeme d'etourdissement au gaz de volailles destinees a l'abattage
US7331848B2 (en) 2003-01-22 2008-02-19 Linco Food Systems A/S Method and system for gas stunning of poultry for slaughter
EP1495678A1 (fr) * 2003-07-07 2005-01-12 Messer Group GmbH Gaz pour un abattoir
WO2005058049A1 (fr) * 2003-12-10 2005-06-30 Institut National De La Recherche Agronomique (Inra) Procede d'etourdissement des palmipedes par exposition au protoxyde d'azote
FR2863453A1 (fr) * 2003-12-10 2005-06-17 Agronomique Inst Nat Rech Procede d'etourdissement des palmipedes par exposition au protoxyde d'azote
WO2007107718A1 (fr) * 2006-03-21 2007-09-27 Secretary Of State For Environment Food And Rural Affairs Appareil pour asphyxier un animal
DE102012100480B3 (de) * 2012-01-20 2013-05-02 Banss Schlacht- und Fördertechnik GmbH Verfahren zum Betäuben eines Schlachttieres
EP2617288A1 (fr) * 2012-01-20 2013-07-24 Banss Schlacht- und Fördertechnik GmbH Procédé et installation pour étourdir un animal d'abattage
CN104768382A (zh) * 2012-09-10 2015-07-08 林科食品系统公司 用于监测鸟的气体致晕的方法与监测系统
US9826745B2 (en) 2012-09-10 2017-11-28 Linco Food Systems A/S Method and a monitoring system for monitoring gas stunning of birds
WO2018191284A1 (fr) * 2017-04-10 2018-10-18 Baader Linco, Inc. Étourdissement atmosphérique commandé
US11096394B2 (en) 2017-04-10 2021-08-24 Baader Linco, Inc. Controlled atmospheric stunning
EP3417712A1 (fr) * 2017-06-20 2018-12-26 Cm2A Installation d'étourdissement par gaz de volailles avant abattage
WO2023031382A1 (fr) * 2021-09-06 2023-03-09 Bernd-Tönnies-Stiftung C/O Göke & Partner Installation d'étourdissement et procédé d'étourdissement respectueux des animaux et économique d'un animal de boucherie
WO2024033573A1 (fr) * 2022-08-11 2024-02-15 Honkajoki Oy Appareil d'abattage et procédé d'abattage de bétail

Also Published As

Publication number Publication date
PL311875A1 (en) 1996-03-18
EP0701396A1 (fr) 1996-03-20
CN1126941A (zh) 1996-07-17
AU6801694A (en) 1994-12-20
CA2164114A1 (fr) 1994-12-08
BR9406780A (pt) 1996-02-06
HUT73292A (en) 1996-07-29
HU9503451D0 (en) 1996-01-29

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