Because of the alarming positivity detected during the first
investigation phase, further study was focused on more strict co-
ordinated official controls for raw milk and feed. Thus, within the
phase II, each dairy producer was obliged to control the input raw
milk on daily basis. On the basis of results obtained for 808 samples
tested for AFM 1 contamination, the revealed milk non-compliancy
was 2.8% (Table 1). The positive mean has significantly decreased
from 24.8 ng/kg to 15.2 ng/kg (P < 0.05), and the highest detected
concentration was 174.3 ng/kg. The positivity decrease confirmed
the survey effectiveness i.e. has justified the measures for tempo-
rarily ransom forbiddance from the farms with confirmed AFM 1
contamination.