A good program should include the following points. Empty bins frequently. Clean the interior of bins, particularly roof areas and upper inside walls. Remove spilled feed residues from around the bin and feeding areas. Do not leave feed in bins between flocks.
Check bins for leaks and poor ventilation.
It is important to realize just how much water is in a bulk bin filled with feed. At first this water may be uniformly distributed throughout the feed but there is no guarantee it will remain so. Temperature changes due to heating and cooling of bins through day and night cycles can move some of this water to the cooler areas of the bins. The water tends to condense against the inside wall and roof of the bin. The increased moisture content of the feed near these areas can promote mold growth and mycotoxin formation.