Williams V J, Senior W
Aust J Biol Sci. 1979 Feb;32(1):41-50.
Changes in body composition were studied in three groups of young adult female rats; the treatments were (1) ad libitum food intake to obtain normal growth, (2) restricted food intake to cause body weight loss, and (3) restricted followed by ad libitum food intake to obtain recovery of lost body weight. In each of the three groups of rats the percentage body water was linearly and negatively correlated with the percentage body fat, the weight of body water was linearly and positively correlated with the weight of body protein, and the ratio of the weight of body protein to water was relatively constant at 1:3.20 +/- 0.02 (mean +/- standard error). The percentage body water in the fat-free body was linearly and negatively correlated with fat-free body weight during normal growth between 109 and 334 g body weight but positively correlated during body weight loss and recovery. During recovery of body weight rats laid down more fat and less protein than during normal growth through the same body weight range and the percentage of digestible energy retained as body tissue was increased.
对三组成年雌性幼鼠的身体成分变化进行了研究；处理方式如下：（1）自由采食以实现正常生长，（2）限制食物摄入量以导致体重减轻，（3）先限制食物摄入，然后自由采食以恢复体重减轻。在三组大鼠中，每组的身体水分百分比与身体脂肪百分比呈线性负相关，身体水分重量与身体蛋白质重量呈线性正相关，身体蛋白质与水分的重量比相对恒定，为1:3.20±0.02（平均值±标准误差）。在体重109至334克的正常生长期间，无脂肪身体中的身体水分百分比与无脂肪体重呈线性负相关，但在体重减轻和恢复期间呈正相关。在体重恢复过程中，大鼠在相同体重范围内沉积的脂肪比正常生长期间更多，蛋白质更少，并且作为身体组织保留的可消化能量百分比增加。
