Filamentous fungi, especially Aspergillus flavus-oryzae, and bacteria were present in all samples of macaroni and spaghetti products tested. No aflatoxin was detected in the three samples, all relatively high in A. flavus-oryzae, that were tested for it. Five of the nine isolates of A. flavus-oryzae from macaroni and sphaghetti grown in corn, incorporated into an otherwise balanced ration, and given to ducklings resulted in death of one to five ducklings within six days.
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