WATER ABSORPTION BY THE EGGS OF CRICKETS

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Abstract
Absorption of water by the eggs of Acheta configuratus, Gryllodes sigillatus, and a Canadian and a Pakistani strain of Acheta domesticus takes place during early embryonic development. The amount of water absorbed varies from about 60 to 120% of the weight of newly laid eggs, depending on the species or strain. The time of absorption is generally earlier the more rapid is embryonic development, indicating that the embryonic stage during which water is absorbed is similar in all forms. Absorption is more rapid at 33 than at 28 °C. In all forms, a small but rapid loss in water occurs just after maximal absorption; this loss takes place also when the eggs are immersed in distilled water. The incubation periods of the four forms at various temperatures (28–38 °C) are presented.

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