[Body composition of feed-restricted female rats, at the first estrus]. / COMPOSIÇÃO CORPORAL, NO 1º ESTRO, DE RATAS SUBMETIDAS A DIFERENTES GRAUS DE RESTRIÇÃO ALIMENTAR.

At first estrus the feed-restricted rats were older and, proportionally to the age, leaner than the well fed animals. They had attained a greater proportion of protein and lesser proportion of water and fat; however the animals of the two restricted diet groups and the well fed group had the same weight. First estrus was simultaneous with vaginal opening in 90% of the well fed animals, in 20% of the group I and in 0% of the group II.

[Growth rate and development in feed restricted female rats]. / VELOCIDADE DE CRESCIMENTO E DESENVOLVIMENTO SEXUAL DE RATAS SUBMETIDAS A DIFERENTES GRAUS DE RESTRIÇÃO ALIMENTAR.

Age and weight were determined by direct measure in 30 feed-restricted female rats studied from weaning to first estrus, and compared to well fed controls. At the first estrus the average weight of well fed rats did not differ from that of the feed-restricted groups. Mean ages at vaginal opening and first estrus in the feed-restricted animals were however greater.