useful links from WAG on bTB reduction measures

http://wales.gov.uk/docs/drah/publications/100607gwlad96en.pdf
http://wales.gov.uk/docs/drah/publications/010701gwladtbspecialsummer10en.pdf
http://wales.gov.uk/docs/drah/publications/110317gwladbovinetben.pdf
page 13 for all wales testing regime
http://wales.gov.uk/docs/drah/publications/090811gwlad87en.pdf