Author： MONROE R. E. POLITYKA C. S. LAMB N. J.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.61, Iss.2, 1968-03, pp. : 292-296
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Abstract
Larvae of the house fly. Musca domestica L., were reared aseptically on a synthetic diet containing cholesterol- 4-C14. Adults obtained from these larvae were fed on a diet containing unlabeled cholesterol to study the utilization and metabolism of the larval sterols for oögenesis. Sterols were initially incorporated into the eggs at 0.53 g/mg, and rapidly decreased with succeeding oviposition. Hatchability was not significantly affected even when the concentration dropped to 0.15 g/mg. Esterification of sterols was high in the female flies and increased appreciably in their eggs. Dehydrogenation of cholesterol to 7-dehydrocholesterol was minor in the adult flies, but increased slightly with succeeding collections of eggs.
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