Cattle density 2012 shape file of density as the number of cattle Cattle per quare kilometre, as estimated in 2102 from figures collected from the owners of large farms and from the vaccination campaign figures of the Directorate of Veterinary Services. Densities on the farms were estimated by dividing the number of animals by the farm size, while the vaccination numbers recorded at crushpens as points were used to estimate densities spread around 10 kilometres from each crushpen using a kernel method in ArcView's Spatial Analyst extension.