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THE FUNCTIONS OF COPPER IN THE HOUSE CRICKET AND THE RELATION OF COPPER TO VITAMIN E1

Published online by Cambridge University Press:  31 May 2012

J. E. McFarlane
Affiliation:
Department of Entomolosy, Macdonald Campus of McGill University, Ste. Anne de Bellevue, Quebec

Abstract

The addition of copper to an artificial diet improves growth and survival of the house cricket, Acheta domesticus (L.), the optimum concentrations being 2 μg/g for females and 10 μg/g for males. This sex difference in requirements is attributed in part to the accumulation of copper by the larval testis. Adult males showing a loss in pigmentation, the so-called ’albino’ males, are obtained on diets low in copper; the percentage of ’albino’ males is increased by the addition of vitamin E to the diet. The pigmentation effect of vitamin E is explained by movement of copper into the testis, the development of which is stimulated by vitamin E.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1974

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