|The final days of the corn crop season in US brings unusual weather patterns as it has throughout the growing season. While a good portion of the production area faced long dry periods, such as in KS, MO, IA, AR, and OK the regions around those faced wetter than normal conditions.
The impacts of both drought and high moisture on mold and mycotoxin contamination were discussed in previous reports, but it is important to remind all that some Fusarium molds can benefit from an early dry season followed by wet conditions during dough and harvest, increasing the probability of contamination with mycotoxins such as Fumonisin, Deoxynivalenol (Vomitoxin), and Zearalenone.
We also discussed in previous reports, the potential for Aspergillus proliferation on dryer growing conditions, imposing a higher risk of Aflatoxin contamination.
According to reports, corn grain in US is over 70% mature, and approximately 20% already harvested.
Even with grain moisture declining in the past few weeks in most of the growing area, it is still above average, demanding higher attention at drying and storage. Storing grains over 14% moisture for longer periods can be detrimental to its quality due to possible mold growth.
It is recommended that a good sampling procedure be set up and a routine analysis of mycotoxins be conducted. That would allow preventative actions, avoiding performance and health problems in animal production.
The Nutriad team is available in the field to help in setting up sampling programs, analysis of mycotoxins and designing proprietary risk control programs for their customers.