60 Occurrence of Mycotoxins in US Corn Gluten Products and Wheat Middlings

Abstract Secondary fungal metabolites which may affect animal health and productivity are known as mycotoxins. These naturally occurring often detected in a variety of feed ingredients. Mycotoxin occurrence contamination levels corn gluten products wheat middlings or “midds” were monitored this study. Samples submitted from the US screened via LC-MS/MS for six major mycotoxin groups: aflatoxins, type A trichothecenes, B trichothecenes (B-Trich), fumonisins (FUM), zearalenone (ZEN), ochratoxin (OTA). The presence clinical performance concerns on-farm was reported each sample. Results samples without that above limit detection respective group included Out 14 product 2021 crop year, 100% positive both B-Trich FUM, while 71% some amount ZEN. groups also most frequently 2020. Mean (parts per billion, ppb) 1,314 ppb, 443 132 respectively. Of 24 midds, 92% 54% OTA with mean 665 ppb 3 Ergot alkaloids not current however, previous analyses have identified these occur midds samples. Although represented by limited data sets to date, analysis indicate mycotoxins by-product feeds. High costs drive increased feeding alternative feeds, including other by-products, addition established routine usage pelleted feeds diets. Therefore, continued screening is suggested assess exposure livestock