Abstract
In this study, 288 milk samples were collected randomly from individual farms in Qazvin province from March to February 2012, Iran. Samples were analysed for Aflatoxin M1 (AFM1) by ELISA; also the Aflatoxin B1 (AFB1) contamination in animal feed was determined at the same time as the sampling of raw milk. One hundred and sixty-three samples (56.59%) were found to contain AFM1 at various levels; the presence of AFM1 was detected in a concentration ranging between 0.01 and 0.22 ppb. In 113 (69.32%) of the 163 milk samples, AFM1 levels were found to be higher than the maximum tolerable limit (0.05 ppb) accepted by the European union/Codex Alimentarius Commission. The mean AFM1 contamination levels in milk in summer and winter were 0.08 and 0.18 ppb, respectively. The AFB1 contamination level in the winter feed (2.27 ± 1.76) was higher than from summer (0.83 ± 0.60) (P < 0.05).
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