In July, 1975, dermatitis producing black necrotic foci was found in at least 10% o of 70-day-old broiler chickens dealt with in a chicken-processing plant in Kagoshima Prefecture. From these foci was isolatedAspergillus fumigatusalmost in a pure form. It was not found in any visceral organ. Histopathological examination revealed c hanges of granulomatous necrotic dermatitis and the presence of hyphae of this fungus in the tissue.
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Yamada et al. (1977) studied this question.
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