Abstract: A self-contained mobile abattoir configured for receiving and processing therein slaughtered livestock according to Inspection Agency regulatory standards. The mobile abattoir comprises a towable trailer unit. The interior of the trailer unit comprises a plurality of partitioned interconnected workspaces configured for hygenic performance of skinning and skin disposal, carcass cleaning and inspection, evisceration, viscera separation and inspection, butchering and meat inspection operations. A track rail system depending from the trailer ceiling is configured for moving carcasses about and through the interconnected workspaces. The trailer unit also comprises an enclosed equipment space configured for controllably producing and delivering to the interconnected workspaces at least electricity, compressed air, hot water, chilled water, and refrigeration, and is communicable with a power-generating apparatus.