US maize with 2.688 ppm of vomitoxin withdrawn
Organisers of last Sunday’s Limerick Show said it was a very successful event, with an estimated attendance of about 15,000.
Under the chairmanship of IFA deputy president, Richard Kennedy, the long established show became a one-day event in 2017 for the first time. Attractions such as a showc a s e o f I r e l a n d ’ s n a t i ve breeds, a spotlight on local food producers, the festival of Irish horse breeding, free entry for under-12s, as well as the show’s usual features, ensured its success in the new one-day format. Exhibitors of the main livestock and bloodstock champions were as follows.
Some maize from the United States has been withdrawn from the market in Ireland due to contamination with deoxynivalenol, a mycotoxin also known as vomitoxin.
Like other mycotoxins, it occurs in grains such as wheat, barley, oats, rye, and maize due to a fusarium fungal infection of the growing crop, which in turn is strongly associated with moisture at the time of crop flowering. Deoxynivalenol has been implicated in incidents of mycotoxicoses in both humans and farm animals. Reduced feed intake, with an accom- panying decrease in performance, is the only symptom of vomitoxin toxicity which livestock producers usually encounter. Large amounts of grain with vomitoxin would have to be consumed to pose a health risk to humans.
The U.S. Food and Drug Administration has established a level of 1 ppm (parts per million) restriction of vomitoxin. For livestock, restrictions are set at 10 ppm for poultry and ruminating beef and feedlot cattle older than four months. Ingredients may not exceed 50% of the animal’s diet. Dairy cow feed limits are set at 2 ppm. The level of contamination found in Ireland early last month in a shipment from the US is 2.688 ppm.
Some US maize has been withdrawn from the market due to naturally occurring mycotoxin contamination.