The effect of decreased feeding frequency on body composition in mature and immature male and female rats

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Abstract
Ninety-day-old male and female rats of the Wistar strain were force-fed a liquefied diet twice daily for a 2-week experimental period. The amounts fed corresponded to ad libitum intakes of similar groups of animals fed the diet in the dry state. The animals were adjusted to the feeding technique for 1 week prior to the experimental period. At the end of the experimental period the carcasses of the force-fed animals and the ad libitum control groups were analyzed for fat, nitrogen, and moisture content. The frequency of feeding had no significant effect on percentage carcass fat, but lessened frequency of feeding was associated with a decrease in percentage carcass protein (N × 6.25) which was of slight significance. Subsequently, 35-day-old animals were treated similarly. In the younger animals the method of feeding had a significant effect on carcass fat, with an increase in fat content in the force-fed animals which was apparent in the males but was not of significance in the females. The increased fat deposition in the immature male animals was accompanied by a decreased weight gain. A significant decrease in percentage carcass protein was observed in the immature force-fed animals.

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