MEAL PATTERN OF RATS DURING HYPERPHAGIA INDUCED BY LONG-TERM FOOD RESTRICTION IS AFFECTED BY DIET COMPOSITION

被引:9
作者
DELPRETE, E
BALKOWSKI, G
SCHARRER, E
机构
[1] Institute of Veterinary Physiology, University of Zurich
关键词
D O I
10.1006/appe.1994.1036
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
The influence of diet composition on feeding behavior during the hyperphagia induced by about 15% loss in body weight due to restricted feeding (5 g food/day for 7 days) was investigated in adult male rats. Rats were fed either a low-fat, high-carbohydrate diet (LF diet), a medium-fat diet (MF diet) or a carbohydrate-free, high-fat diet (HF diet). The transient hyperphagia resulting from food restriction was greater in LF- and MF-rats than in HF-rats, in which a mild hypophagia was observed following the hyperphagia. Recovery of body weight was imperfect in the HF-rats in comparison to the unrestricted controls. During the hyperphagia, the meal pattern of LF- and MF-rats was mainly characterized by an increase in meal size, whereas HF-rats showed an increase in meal frequency. These observations indicate that control of food intake by body weight in LF- and MF-rats occurs mainly by modulation of the mechanisms producing meal-ending satiety, whereas in HF-rats the mechanisms eliciting meal initiation seem to be affected by body weight.
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页码:79 / 86
页数:8
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