A poultry processing line with a conveying track and can include at least one carriage movable in the conveying track. Wheels on opposite sides of the carriage are mounted on an axle guided through a shaft or bore of the carriage, and are movable along supports for the respective wheels on opposite sides of the conveying track. The shaft or bore has a convex inner top surface and convex inner bottom surface as seen in the shaft or bore's longitudinal direction.

An animal carcass apparatus includes a support structure, a butchering platform and a carcass holding device. The butchering platform is moveably connected with the support structure and is constructed to support the mass of a person, and the carcass holding device includes a base and a securement mechanism. The carcass holding device is arranged in proximity with the butchering platform such that when a person is on the platform and a carcass is on the carcass holding device, the person contacts the carcass to butcher the carcass and moves the butchering platform to adjust the position of the person relative to the carcass holding device. Preferably, the butchering platform includes a linear actuator for vertical movement of the butchering platform. A method for processing beef includes processing beef with the animal carcass apparatus.