check the Cattle Tracing System (CTS) database to ensure your cattle (for which you are the keeper) are accurately listed and notify any inaccuracies
i weld cronfa ddata’r System Olrhain Gwartheg (SMR) i wneud yn siwr bod yr holl wartheg o dan eich gofal wedi’u rhestru’n gywir a rhoi gwybod am gamgymeriadau