Sudden death in a turkey farm in Alexandria governorate was investigated. The P. M. examination of twenty representative cases, showed enlargement and hemorrhages of liver, spleen, lung, kidney and muscles. Aspergillus flavus, A. niger, A. fumigatus and Penicillium citrinum, were isolated in dominating frequency but Fusarium sporotrichioides, E. tricinctum and oxysporum rarely isolated. The same fungi were isolated from houses with turkey deaths (feed, litter, air, water and droppings). From one hundred and three of these isolates eighty were Mycotoxigenic (77.4%). A. flavus (74.4%), A.ochraceus (80.0%), F. sporotrichiolides, F.tricinctum and F. oxysporum (100%) and P.ctrinum (90%). The majority of these isolates were encountered in feeds and litter which give a large probability that feeds are source of these toxicosis. The hygienic significance of fungal pollution for turkeys has been discussed.
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