Abstract
In 3 experiments with a total of 72 male albino Wistar or Sprague-Dawley rats, liquid or solid diets differing in carbohydrate or triglyceride content were presented 1 at a time to each S once or twice a day. For a given S, each caloric density consistently had a particular odor and/or taste. Results show the size of the feeding bout on the dilute nutrient became larger than that on the more concentrated nutrient after several pairs of presentations. This differentiation was at least partly controlled by the oral cues which had been paired with nutrient differences. Results were attributable to acquired differences in the development of feeding inhibition during the meal, and not to original or acquired differences in initial rate of feeding or in the preference for 1 diet over the other in 2 stimulus tests.
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