No matter what the 2025 crop year brings for mycotoxin risk, DTX™ has you covered. Fusarium molds and their toxins have shown up on tests in almost every area of the United States where Agrarian has tested forage samples for the 2025 crop season. Fusarium molds grow best in humid, cool to warm conditions, and these conditions are conducive for DON and zearalenone production, while wet and hot conditions favor fumonisin creation. Fumonisin contamination is often seen in samples with high amounts of DON and zearalenone, but it is possible to see samples with DON and zearalenone and no fumonisin.
The 2025 crop is bringing some relief from mycotoxins to the Atlantic coast, but we are seeing mycotoxins in the upper Midwest for the first time in a few years. Agrarian recently published a comprehensive review of the mycotoxin risk in corn silage and TMR for your state with interactive maps on our website. Interestingly, wheat straw in certain areas is testing high for DON and zearalenone, as previously discussed in our Fall 2025 RISE Newsletter. Dry cows can be especially vulnerable to any stressors that may reduce intake or pull nutrients away from fetal growth and mammary development. If cows are not protected from mycotoxins during the dry period they can be at risk for liver health issues after calving, usually indicated by a rise in ketosis, due to the strain detoxifying mycotoxins poses on the liver.
Agrarian recommends sampling feed ingredients and TMR every four to six weeks, depending on how quickly the farm moves through corn silage. A discussion on DTX feed rate strategy can be found in a past newsletter. It is important to test feeds and TMR to be prepared for mycotoxin stressors animals may face, rather than playing defense after cows lose production or reduce reproductive success.
DTX helps the cow defend and protect herself from a range of mycotoxins. The specialized cell-wall deficient bacteria technology used in DTX efficiently confers protection against all major mycotoxins in the digestive tract. Additionally, plant actives add extra digestive tract and liver support for the animal during any challenge. With DTX you can be sure you are providing the best broad-spectrum protection.
Authors: Caroline Knoblock, MSc, – Director of Nutrition, Agrarian Solutions and Larry Roth, Ph.D., PAS – Vice President of Nutrition
