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News 5 commentslast update:14 Jan 2016

Nutriad finds mycotoxins in some Polish maize

The 2014 harvest of maize in Poland is of poor quality in terms of mycotoxin contamination. This is the conclusion of a mycotoxin survey, carried out by animal nutrition company Nutriad.

The survey covered 36 maize samples from all over Poland. More than 216 analysis were conducted to test for the occurrence of the six most frequently found mycotoxins in agricultural commodities intended for animal production:  aflatoxin B1 (AfB1), zearalenone (ZEN), deoxynivalenol (DON), T-2 toxin, fumonisin B1 (FB1) and ochratoxin A (OTA).

Direct sampling maize

All samples were collected almost immediately after the harvest and the probability that some storage mycotoxins will have developed (OTA) was low. Maize samples were sampled directly from farms or animal feed production sites.

DON and ZEN in all samples

The results show that 100% of maize samples were contaminated with DON and ZEN. None of the samples contained AfB1 and OTA. Exactly 25% of samples contained FB1. The average concentrations of all recovered mycotoxins were medium to high while the highest concentration of DON found in one of the samples reached 7900 μg/kg.

T-2: Harmful for poultry

T-2 toxin, a mycotoxin extremely toxic for poultry was found in 63% of the samples; its maximum concentration reached 120 μg/kg and this level could be significant for poultry or other monogastric animal species.

ZEN: Toxic for most animals

Of even more interest was contamination by zearalenone; 100% of samples were contaminated and the highest analysed concentration was 2600 μg/kg. The average ZEN contamination was 291 μg/kg and this level can be considered medium to high risk for most animal species.


  • vas Siller

    I got confused, you were talking about the maize (corn) and then end up saying wheat crop in Polland should not be considered safe for feed.

  • Emmy Koeleman

    True, will change it. Thank you!

  • vas Siller

    Very good information indeed, hopefully we can get it for this side of the world too, Mexico-USA. Thanks

  • Larry Whetstone

    Corn used to produce ethanol can be contaminated with Mycotoxins that are not affected by the ethanol production process and remain in the DDGs purchased as feed. How can the farmer feeding the livestock with this product be assured the feed is clean? LW

  • Radka Borutova

    Dear Larry, I am the author of the article. To answer your question. DDGS usually contains around 3-times higher concentrations of mycotoxins in comparison to the original raw material used for the DDGS production. NutriAd can make 2015 year survey on DDGS that would be interesting indeed. Nothing as clean feed exists. Currently we know more than 500 different mycotoxins and most of the time feed contains 40-50 different mycotoxins and fungal metabolites. Because we do not test all of them, it does not necessary mean that these mycotoxins ar not it. We are just not routinelly looking for them. Currently EU customers try to decrease inclusion of corn and DDGS in pig diets and also utilize mycotoxin deactivators to counteract negative effects of DON and ZEN.

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