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pp.1-11
Nivalenol (NIV), deoxynivalenol (DON), T-2 toxin (T-2) and zearalenone (ZEN) are mycotoxins produced by some Fusarium species known to be very frequently contaminated in feed. The study for simultaneous analysis and contamination survey in animal feed carried out. All mycotoxins were analysed by using high performance liquid chromatography tandem mass with internal standard. The limits of detection (LOD) were 2.0 μg/kg,1.0 μg/kg, 1.0 μg/kg and 0.1 μg/kg for NIV, DON, T-2 and ZEN, respectively. Two hundred and thirty nine samples of feed were collected. The average concentration of DON was 212.3 μg/kg, 207.8 μg/kg and 812.1 μg/kg in chicken,pig and cattle feed, respectively. The average concentration of ZEN was 31.2 μg/kg, 35.6 μg/kg and 147.2 μg/kg for them, respectively. Especially, the levels of contamination for DON and ZEN were higher than those of NIV or T-2. And, the levels of contamination for four Fusarium mycotoxins in cattle feed appeared higher than those of pig and chicken feed. It was investigated that the high level of mycotoxin contamination in cattle feed was caused by corn gluten feed of ingredients for feed, mainly.
