Regulation of essential fatty acid intake in the rat: Self-selection of corn oil.

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概要

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• The present investigation was conducted to determine if rats can recognize the essential fatty acid (EFA) in the diet. Weanling rats were pre-fed a 30% hydrogenated coconut oil (30HCO) diet containing 1% cholesterol for 2 or 4 weeks to produce EFA deficiency, then allowed to choose between the fat-free (FF) diet and the 0.5, 1.0, or 2.O% corn oil diet, and between the 0.5% HCO diet and 0.5% corn oil diet. Rats pre-fed the 30HCO diet for 2 weeks selected the corn oil-containing diets for a few days at the beginning of the experiment, but the rats pre-fed for 4 weeks could not recognize the EFA-containing diet. The non pre-fed animals continued to prefer the EFA-containing diet for about 2 weeks. From these results we could demonstrate that rats have a mechanism to distinguish the EFA in their diet, but this EFA selection ability was only in the early period of the experiment, and diminished soon after.

• 財団法人 学会誌刊行センターの論文

著者

• 村松 敬一郎

  Department of Agricultural Chemistry, Faculty fo Agriculture, Shizuoka University

• 山本 由喜子

  Department of Food and Nutrition, Faculty of Science of Living, Osaka City University

• 村松 敬一郎

  Department of Agricultural Chemistry, Faculty of Agriculture, Shizuoka University

関連論文

• Regulation of Amino Acid Intake in the Rat: Self-Selection of Methionine and Lysine
• Regulation of essential fatty acid intake in the rat: Self-selection of corn oil.
• Changes in fatty acid composition in sardines (Sardinops melanosticta) with cooking and refrigerated storage.

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