PMID: 3770865Nov 1, 1986Paper

Salt level in weaning diet affects saline preference and fluid intake in Dahl rats

Hypertension
F FerrellS D Gray

Abstract

Weanling Dahl salt-sensitive (DS) and salt-resistant (DR) rats were used to compare effects of feeding high or low NaCl diets on taste preference for, and intake of, a wide range of saline concentrations. The DS and DR were fed either 8.0 or 0.4% dietary NaCl for 4 weeks. Then, with all animals fed the 0.4% NaCl diet, their taste preferences for 0.0001 to 0.56 M saline were assessed using three 24-hour two-bottle preference tests of each solution versus distilled deionized water. Saline preference and intake were influenced by concentration and its interaction with genotype, with DS exhibiting higher preferences than DR for hypotonic saline. The DS preexposed to 8.0% dietary NaCl showed elevated consumption levels of water and total fluid (saline + water) that persisted throughout the 5-week test period, despite transfer to the 0.4% NaCl diet before the initiation of preference testing. Findings indicate that genotype, dietary NaCl levels in weaning diet, and saline concentration of preference test solutions interact to influence saline preference and saline and water intake in Dahl rats.

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Citations

Feb 1, 1990·Physiology & Behavior·N E Rowland, M J Fregly
Jun 1, 1990·Physiology & Behavior·B K Formaker, D L Hill
Sep 25, 1998·Physiology & Behavior·A A BachmanovG K Beauchamp
Jan 1, 1983·Journal of the American College of Cardiology·E D Frohlich
Mar 19, 2014·BMC Genomics·Man Chun John MaAnne E Kwitek
Jul 22, 2008·Physiology & Behavior·Michael G TordoffMaureen P Lawler
Sep 7, 2002·Hypertension·Stephen H ZinnerBernard Rosner
Aug 1, 2012·Physiological Research·J ZichaJ Kuneš

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