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老鼠食量是受到饮水影响的。有水,它就可多吃些粮食。无水,它就吃少些。不论是否饮过水,老鼠胃中水分的含量总是近于49％。这种情况说明老鼠胃内存在着调节水分的机制。因为当老鼠吃食时,若无饮水的供应,它所吃到的分量只是限于它自身所能调节到的程度为止:它所能调节的程度就是它能从其身体组织中提出水分的供应,使胃中水分与粮食达到经常的比例(译者注:49%)。这水分是从皮肤脂肪或其他组织方面供应的。这种情况如何反射到控制吃食的机制尚不知悉。在肠内水分是
Mouse food intake is affected by drinking water. With water, it can eat more food. Without water, it ate less. Whether or not drinking water, the mouse stomach moisture content is always near 49%. This situation shows that the mouse stomach exists to regulate the water mechanism. For when a rat eats, without the supply of drinking water, it only consumes its weight to the extent that it can adjust itself: to the extent that it can regulate the supply of water from its body tissues, Stomach moisture and food to reach a regular ratio (Translator’s Note: 49%). This moisture is supplied from skin fat or other tissue. How this situation is reflected in the control of feeding mechanism is not yet known. Water in the intestine is