Studies on the Postirradiation Feeding Activity of Tribolium Castaneum (Tenebrionidae: Coleoptera)

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Abstract
Adults that had been exposed to selected doses of high-speed electrons were subsequently offered various diets. Longevity studies and radioisotopic tracer studies showed that they fed to some degree after irradiation. After exposure to 27,400 rads or more, feeding ceased for at least 2 days, then was resumed between the second and the seventh days, and the amount of feeding depended on the dose of radiation previously applied. The nutritional state of the beetles after exposure to certain dosages of radiation affected their life expectancy. At least two dose-dependent modes of mortal response to irradiation with high-energy electrons were exhibited by T. castaneum, and starvation was not a primary cause of death in irradiated individuals.

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