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minimizing the risk of mycotoxin contamination is a must!
Rising feed costs due to COVID or the Ukrainian crisis require
and from ethanol production can be part of the solution, but the contamination with mycotoxins impacts the quality of these feed ingredients. Being aware of this risk and considering some guide- lines can help manage this challenge.
Mycotoxins concentrate in the by-products First of all, it’s essential to know that the raw materials for milling and ethanol production are often contaminated with mycotoxins. These mycotoxins are not destroyed in the processes, meaning that the process only reallocates the toxins, this relocation lo- wers the contamination in food products and increases it in por- tions destined for feeding animals.
Mycotoxins are removed from the ‘food parts’… In milling, the cleaning step has shown to remove mycotoxin con- tamination in wheat, ranging from 5-80% ofDON and NIV, 5-40% of ZON, and 50-60%of T2/HT2. Further, debranning, the process by which the outer layers of wheat grains are removed, reduces mycotoxin content in wheat grain from 15 to 80% of the initial
- tion, mycotoxin levels typically range from 50 to 70% of the wheat grain. Corn milling shows a reduction factor of
…but concentrated in the ‘feed parts’ Mycotoxins are reduced in food products, but what about the feed fractions? Several studies indicate that the concentration of
screenings, and middlings intended for animal feeds. With re- ference to the contamination of wheat grain, the mycotoxins in by-products may be up to 800 % but more typically range from 150%to 350 %. Our worldwide mycotoxin survey shows a similar trend, with DON levels nine times higher in wheat midds than in wheat grains and fumonisin eight times higher in wheat bran.
three times in corn germ and up to nine times in bran. For fumo- nisins, a double concentration can be expected, and for zearale- none, up to four times higher contamination.
Concerning DDGS, a product from ethanol production, we face similar challenges. DON, ZEA, and fumonisins concentrations are 2-3.5 times higher than in corn.
Which guidelines should be considered to lower risk for the animals
First of all, it is crucial to know the mycotoxin levels of your by-products. Considering that, the maximum levels for each species and production stage can be set up. Additionally, we must
return from the application of mitigation strategies through the feed is advisable. including analysis, risk evaluation, and risk mitigation,
Functional Innovations backed by Science
ew-nutrition.com
References available upon request
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