TESTOSTERONE CONCENTRATIONS IN PLASMA OF FETAL RABBIT DURING SEXUAL ORGANOGENESIS

  • 1 January 1980
    • journal article
    • research article
    • Vol. 290  (8) , 583-586
Abstract
Testosterone was measured daily by radioimmunoassay from the 18th-25th day of gestation in 650 male and female fetuses. In male fetuses testosterone levels increased between days 18 and 19, reaching their maxima at 20 days and varied little from 21-25 days. Circulating concentrations of testosterone were sex-dependent.