Water Intake without the Act of Drinking

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Science  19 Feb 1960:
Vol. 131, Issue 3399, pp. 497-498
DOI: 10.1126/science.131.3399.497

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A method is described that allows a rat to ingest fluid through a chronic gastric tube that bypasses the oropharyngeal cavity. In this situation longterm regulation of water intake occurs in normal rats and in the rat with diabetes insipidus. Under special circumstances, a remarkable degree of excess intake can be produced.