Figure 5.

Mean number of contacts that dairy holdings have with the same holding. Mean number of contacts that dairy holdings have with the same holding by off-farm movements for live trade in the Netherlands over the period from July 2001 to December 2004. The arrow represents the month in which movement restriction regulations were eased from 30 to 21 days.

Brouwer et al. BMC Veterinary Research 2012 8:188   doi:10.1186/1746-6148-8-188
Download authors' original image