A computer tomography apparatus for examining a body part of a large animal comprising: - a computerised tomography device with a ring-shaped gantry and a CT table for recording a part of the body of a large animal to be examined, - and a platform on which the CT device is mounted, the gantry being immovable relative to the platform, and wherein the CT table is horizontally movably connected to the gantry and/or the platform relative to the platform and to the gantry such that the CT table can be retracted into an opening of the annular gantry, characterised in that the computer tomography apparatus comprises a displacement apparatus connected to the platform and adapted to horizontally displace the platform with the mounted CT device relative to a standing surface for a large animal located outside the platform, wherein the computed tomography apparatus has an examination stand comprising a support device and a shelf supported by the support device, the examination stand being arranged such that the shelf is not moved during displacement of the platform by the displacement apparatus, and wherein the shelf is mechanically connected to the CT table on the side facing the CT table, and wherein the CT table is disengaged and thereby freely movable with respect to the remainder of the CT device, such that the CT table connected to the shelf, when the CT device mounted on the platform is displaced together with the platform by the displacement apparatus, remains stationary relative to the standing surface during relative movement to the gantry due to the mechanical connection to the shelf, and the support device and the shelf are not moved when the platform is displaced. - a computerised tomography device with a ring-shaped gantry and a CT table for recording a part of the body of a large animal to be examined, - and a platform on which the CT device is mounted, the gantry being immovable relative to the platform, and wherein the CT table is horizontally movably connected to the gantry and/or the platform relative to the platform and to the gantry such that the CT table can be retracted into an opening of the annular gantry, characterised in that the computer tomography apparatus comprises a displacement apparatus connected to the platform and adapted to horizontally displace the platform with the mounted CT device relative to a standing surface for a large animal located outside the platform, wherein the computed tomography apparatus has an examination stand comprising a support device and a shelf supported by the support device, the examination stand being arranged such that the shelf is not moved during displacement of the platform by the displacement apparatus, and wherein the shelf is mechanically connected to the CT table on the side facing the CT table, and wherein the CT table is disengaged and thereby freely movable with respect to the remainder of the CT device, such that the CT table connected to the shelf, when the CT device mounted on the platform is displaced together with the platform by the displacement apparatus, remains stationary relative to the standing surface during relative movement to the gantry due to the mechanical connection to the shelf, and the support device and the shelf are not moved when the platform is displaced.