Markedly improved results were determined in this survey, with a much lower number of samples with increased AFM1 concentrations in milk during autumn and winter. This can be explained due to better weather conditions during the growth of grain used for supplementary feeding of cows in 2013 and 2014, and proper and controlled conditions during grain storage. Therefore, these results showed that the outbreak of elevated concentrations of AFM1 in 2013 led to a more careful approach towards the control of supplementary feedstuff for lactating cows.
Furthermore, it can be concluded that elevated concentrations were found in only four samples in the western and other regions, and in two samples in the eastern region during summer. This was the result of sporadic and localized usage of contaminated feed for dairy cows on small farms. The results further support the conclusion that continuous inspection and control of AFM1 in milk and dairy products, together with the control of AFB1 in raw material and supplementary feedstuffs for dairy cattle is necessary.