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Role of Ten Dietary Vitamins on Fecundity of the Parasitoid Exeristes comstockii (Cresson) (Hymenoptera: Ichneumonidae)

Published online by Cambridge University Press:  31 May 2012

G. K. Bracken
G. K. Bracken
Affiliation:
Research Institute, Research Branch, Canada Department of Agriculture, Belleville, Ontario
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Abstract

Feeding tests with the adults of Exeristes comstockii (Cress.) on chemically defined diets showed that, of ten B-vitamins omitted singly, only three, panthothenic acid, folic acid and thiamine, were needed for maximal egg production and maximal numbers of eggs contained in ovaries. Egg production on a diet with only these three vitamins was similar to that on a control with all B-vitamins, but egg viability was significantly lower. Addition of α-tocopherol did not increase fecundity or egg viability. Vitamin-starved females partly recovered ovarian function when fed tissues of Galleria mellonella L.

Type
Articles
Information
The Canadian Entomologist , Volume 98 , Issue 9 , September 1966 , pp. 918 - 922
Copyright
Copyright © Entomological Society of Canada 1966

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