The intraduodenal administration of large numbers of Clostridium perfringens cells harvested from broth cultures and resuspended in PBS or fresh sterile thioglycollate broth produced a very mild form of necrotic enteritis. Administering an appropriate number of cells in culture supernatant, however, produced typical field-type disease. Alpha toxin was shown to be the significant toxin recoverable from broth-culture supernatant fluids. Requirements to produce the disease are minor intestinal damage and sufficient numbers of toxigenic C. perfringens in the intestine.
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Al-Sheikhly et al. (1977) studied this question.
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