This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Everard, D. M. Articles by Wilson, C. A. Search for Related Content PubMed Articles by Everard, D. M. Articles by Wilson, C. A.

Physical changes associated with the onset of precocious puberty in rats after treatment with PMSG

Summary. Body dimensions, composition, oxygen consumption and core temperature were measured in 2 groups of immature rats treated with PMSG. The first group weighed over 60 g on Day 27 of life and responded to PMSG treatment by ovulating; the second group weighed less than 60 g and did not ovulate after PMSG. Body composition, expressed as a percentage of body weight, was identical in the two groups, but growth rate, oxygen consumption and body temperature were all lower in the lighter animals. Oxygen consumption and body temperature were manipulated by altering temperature (i.e. 5, 22 and 30°C) or by hyperphagia, and a positive correlation was found between body temperature and the occurrence of ovulation.