Effect of Dehydration and Rehydration on the Water Content and Na+ and K+ Balance in Adult Male Periplaneta Americana
作者： Lois E. Tucker
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摘要: Changes in live weight and the water, Na + K content of tissues faeces have been examined adult male Periplaneta americana various states hydration. During dehydration haemolymph volume decreases markedly, but concentrations rise only slightly. Less than 25% removed from during was found to be excreted, excreted excess that alone. It seems likely major tissue for regulating rehydration is fat body, which causes an increase, a decrease, Na:K ratio. The body variable both hydrated dehydrated animals absolute changes ion could not estimated because unknown amount food reserves excretory products.
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