A holding apparatus is configured and adapted for holding eviscerated poultry bodies or parts thereof during processing in a processing apparatus. The holding apparatus includes a supporting body, a fastening body for holding the supporting body and for fastening the holding apparatus to a revolving transport unit of the processing apparatus, and also a clamping device for fixing the poultry body or parts on the supporting body. The supporting body is detachably connected to the fastening body by a fastening element. The fastening element, in the mounted state of the holding apparatus, is accessible from outside. At least one stationary supporting bolt and at least one movable guide bolt are arranged on the fastening body, and the supporting body has corresponding recesses into which the bolts engage. A transport apparatus, a processing apparatus, and a method for maintenance of a holding apparatus, are also provided.