title: Potassium requirement of the growing rat.
abstract: On the basis of maximum weight gain in weanling male rats fed a semipurified diet for 21 days, the requirement for potassium was found to be 0.23% of the diet. This compares with the NRC requirement of 0.18%. The higher requirement is believed to be due to the greater rate of growth, 6.6 to 7.0 g/day, compared with that obtained in older studies on which the NRC estimate was based. The higher potassium level also improved efficiency of food utilization.
mesh_terms: D000367:Age Factors; D000818:Animals; D004032:Diet; D008297:Male; D009751:Nutritional Requirements; D011188:Potassium / Q000378:metabolism; D011189:Potassium Chloride; D051381:Rats / Q000254:growth & development*; D012965:Sodium Chloride; D013045:Species Specificity; D013329:Structure-Activity Relationship
chemical_list: D012965:Sodium Chloride; D011189:Potassium Chloride; D011188:Potassium