Matsuno A Y, Thibault L
School of Dietetics and Human Nutrition, McGill University, Ste. Anne de Bellevue, Québec, Canada.
Physiol Behav. 1995 Dec;58(6):1277-80. doi: 10.1016/0031-9384(95)02025-x.
Different carbohydrate sources in animal diets can affect feeding behavior. The absence of a diet standard, thus, has the potential to introduce a confounding factor into experiments. The main objective of this study, therefore, was to determine if the choice of either sucrose or fructose as the pure carbohydrate in a carbohydrate diet ration would affect feeding behavior in rats. It was found that during the light and dark phases: 1) fructose-fed rats selected significantly less energy from carbohydrate than sucrose fed rats, 2) fructose-fed rats selected more protein and lipid energy than sucrose fed rats, and 3) the total caloric intakes of the two groups were not significantly different. Differing postingestive effects of sucrose and fructose with subsequent compensatory intake may explain these results. Two different carbohydrate sources resulted in different macronutrient selection patterns, thus demonstrating the importance of the nature of dietary carbohydrate in the regulation of feeding behavior in rats.
动物饮食中不同的碳水化合物来源会影响进食行为。因此，缺乏饮食标准有可能在实验中引入一个混杂因素。所以，本研究的主要目的是确定在碳水化合物日粮中选择蔗糖或果糖作为纯碳水化合物是否会影响大鼠的进食行为。研究发现，在光照和黑暗阶段：1）喂食果糖的大鼠从碳水化合物中选择的能量明显少于喂食蔗糖的大鼠；2）喂食果糖的大鼠比喂食蔗糖的大鼠选择更多的蛋白质和脂质能量；3）两组的总热量摄入没有显著差异。蔗糖和果糖不同的食后效应以及随后的代偿性摄入可能解释了这些结果。两种不同的碳水化合物来源导致了不同的常量营养素选择模式，从而证明了日粮碳水化合物的性质在调节大鼠进食行为中的重要性。
