Therewas a moderate positive correlation between AFB1 in feed
and AFM1 in milk collected from the corresponding dairy farm,
with a correlation coefficient of 0.31. The average pass through of
AFB1 in feed to AFM1 in milk was about 1%. Some dairy farms had
discrepancies between the levels of aflatoxin contamination in
their milk and feeds. Table 6 shows the results from eight dairy
farms that had the highest level of AFM1 contamination (>1.0 mg/L)
in their milk, and the corresponding AFB1 levels in the feed and the
feed ingredients. Note that feed containing maize grain or beer-by
products only had low levels of AFB1