Abstract
Summary
Normal voluntary food intake of 18 rats was determined prior to and during pregnancy. Before conception the rats weighing 229 g consumed a mean of 13.88 g/day. During days 1–6 of pregnancy, the rats weighing 262 g consumed 16.80 g/day, an increase of 21%. During days 7–13 body weight increased to 279 g and food consumption to 18.47 g/day, an increase of 33%, and during days 14–20 body weight increased to 318 g and food consumption to 21.07 g/day, an increase of 52%. Between days 1 and 20 of pregnancy, food consumption increased a highly significant 70%. During pregnancy the dams increased 104 g; of this 60 g was due to fetal growth and 44 g to an increased weight of the dams. The control group increased only 6 g during 20 days.
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