Abstract:
System and method for controlled atmosphere stunning of chickens or turkeys in a batch mode is provided. The disclosed method includes the steps of: loading one or more batches of chickens or turkeys in a stunning chamber and sealably enclosing the stunning chamber to isolate the atmosphere therein. Carbon dioxide is then introduced to the isolated atmosphere in a series of three, four, five or more phases to humanely stun and eventually kill the poultry. The carbon dioxide containing atmosphere is subsequently forcibly exhausted from the stunning chamber and the ranks of cages or modules containing the stunned poultry are advanced to a subsequent processing station such as a tipper or dumping station.
Abstract:
A method of depopulating livestock is provided. The method comprises restricting the livestock in a defined space, and depositing foam into the defined space, forming a foam blanket covering the livestock. The livestock can be avians, such as chickens, ducks, and turkeys. A device for making medium expansion foam comprising a high expansion foam generator having a fan, and a shroud shielding the fan from ambient air intake. The shroud limits the amount of ambient air incorporated into the foam during operation. The device can include an alternative gas input positioned to direct an alternative gas to the fan. The alternative gas is selected from the group consisting of carbon dioxide, nitrogen, argon, and mixtures thereof.
Abstract:
A device (1) for killing birds (22), particularly poultry, in which the bird's (22) neck portion (24) is placed on a support (2), and in which a sharp object (6, 16, 30) is moved relative to the support (2), so that the bird's (22) head (26) is severed from the bird's (22) body, and in which the support (2) is provided with a guide (10) which fitting complementarily around the bird's (22) neck (24) just behind the head (26), the width of the opening of the guide (10) being smaller than the width of the bird's (22) head (26).
Abstract:
An apparatus (10) for passing an electrical current through a series of birds (32) for the purpose of killing the birds or of stunning the birds prior to slaughter comprises a continuous shackle train (12) in which the shackles (16) are adapted to move the birds along a predetermined path. A water bath (38) is located below a section of said path so that the heads of the birds will pass through the water bath as they traverse said path section. A plurality of electrical contacts (30) is adapted to engage and move with those shackles which are traversing said path section at any given moment and electrical circuitry (not shown) having a connection with the water bath and with the electrical contacts acts to apply the desired electrical current to the birds as they traverse said path section.
Abstract:
The invention is a current controller for use in, for example, automatic animal stunning equipment. A problem in the past has been that animal stunning equipment has not always stunned animals sufficiently humanely prior to slaughter. For example, when a short circuit has occurred and an animal is not sufficiently stunned, the animal has suffered trauma prior to slaughter. Regulations are now being introduced so as to minimise such trauma. The invention solves this problem by providing an improved Wilson mirror constant current generator (21, 22) which can operate in high voltage circuits, with good dynamic response, thereby ensuring the preferred current is always applied to correctly stun an animal.
Abstract:
An apparatus (10) for stunning poultry has a conveyor (24) moving along a predetermined path for suspending the poultry and a compartmentalized basin (32) defining individual compartments (33) for a conducting liquid. The basin (32) is positioned below a portion of the conveyor. A circuit impresses a voltage across the conveyor (24) and each of the individual compartments (33). The voltages are a function of the position of each of the compartments (33) relative to the conveyor (24). The voltages are variable so as to produce a current regulated signal flowing between the conveyor (24) and each of the individual compartments (33) when the poultry is in contact with the conducting liquid in any of the individual compartments (33).
Abstract:
A poultry stunning apparatus and method, the apparatus including an electrical control module configured to apply a DC current to the poultry at a voltage sufficient to stun the poultry and to apply AC current to the stunned poultry at a voltage and for a period of time sufficient to immobilize and relax the muscles of the stunned poultry, while at the same time avoiding or minimizing damage to the poultry tissue. In the method, DC voltage/current is applied for initial stunning, followed by an AC voltage/current to immobilize poultry and to further relax the muscles of the stunned poultry, such that the poultry does not exhibit involuntary motions, while at the same time avoiding or minimizing damage to the poultry tissue.
Abstract:
The present disclosure generally relates to a method for humanely slaughtering animals, and more particularly to a method for slaughtering animals using a low atmospheric pressure system with or without the addition of inert gas. In particular, the animals are placed into a chamber, the chamber is sealed, and the pressure in the chamber is reduced along a predetermined pressure curve to a target decompression pressure, and maintained at the decompression pressure for a period of time until the animal achieves a state of death. The low atmospheric pressure slaughter is more humane than traditional slaughter techniques, and results in excellent meat quality.
Abstract:
A method for monitoring live poultry intended for slaughter, wherein checking managing parameters and process parameters of poultry flocks, coming from breeding farms, is envisaged, and monitoring thereof of the transportation to the slaughterhouse and to handling thereof at the slaughterhouse, as well as checking gas stunning parameters of the poultry prior to throat-cutting, and wherein video shooting of the chickens' reactions during the stunning step is also envisaged, so as to visually verify the degree of well- being thereof. The method consists of making computer records available wherein a single video file corresponds to each poultry flock or group of flocks in which the images of the visible reactions of the poultry are combined and synchronized with said managing and process parameters.
Abstract:
A method for monitoring gas stunning of birds, where groups of birds are conveyed into and out of a stunning zone (1), and where the concentration of the stunning gas in the stunning zone is measured and adjusted for optimal stunning. The gas concentration is measured at a plurality of measuring positions in the stunning zone and a visual inspection of the birds is performed at two or more of the measuring positions using a visual inspection unit (76), such as a camera, which is moved into the stunning zone together with the group of birds. The groups of birds are advantageously kept in crates (3). The visual inspection unit may be part of a monitoring unit (71) further including a gas sensor (75), said monitoring unit being used for simultaneous measuring of the concentration of the stunning gas and inspection the birds at two or more monitoring positions.