This dataset as reported to the Rural Payments Agency contains data prior to 01/01/2005 is not a complete picture of open farms on the Cattle Tracing System. The Cattle Tracing System. was set up in 1998 when keeper holding data was downloaded from Animal Health Systems. This contained details for cattle and other species (e.g. sheep, goats, pigs etc.). Over the years, several data cleanse exercises have taken place to remove non cattle holdings and to correct any data inaccuracies. Attribution statement: © Rural Payments Agency