抄録
Butter, salad oil, margarine, powder oil and lard were given to eight healthy weanling infants as additives to the solid diet to see whether these fats were acceptable to them and utilizable being absorbed through the digestive tracts with no ill effects on the bowel movement. The amounts of each fat added to the solid diet during each of the early, middle, and late weaning periods in grams per day were 1, 3-7 and 10-21, respectively, which occupied 3, 11-15 and 24-42% of the total fat given to the infants. The experimental period for each of the fats was 10 consecutive days and from the seventh day the feces were collected for 72 hours for the fat determination.
All these fats were well accepted by the infants with no ill effects like diarrhea, the increase of passages nor the retardation of weight growth apparently ascribable to the fats. The fat absorption amounted to 23-34 grams a day showing 93-98% absorption rates. There was a slight tendency that the higher the acid value of the fat, the higher the absorption rate, but it seemed that the difference in melting point, iodine number, and saponification value of the fats exerted no influences on the absorption rate of fats.
It was concluded that there was neither appreciable difference in the absorption among butter, salad oil, margarine, powder oil, and lard, nor ill effects observed on the weight gain, the stool nature of the infants when these fats and oils were fed as additives to the solid diet for the weanling infants.
