Fig. 4
From: Spatial analysis and characteristics of pig farming in Thailand
Spatial distributions of pig population in Thailand in 2010. The upper row shows the distribution of pig density by types: all pigs (a), native pigs (b), breeding pigs (c), and fattening pigs (d). The lower row shows the distribution of all pig farms (e), smallholder farms (f) and large-scale farms (g) The lower right hand map (h) shows the nine regional administrative areas