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 YOSHINAGA, K. Articles by ADAMS, C. E. Search for Related Content PubMed Articles by YOSHINAGA, K. Articles by ADAMS, C. E.

LUTEOTROPHIC ACTIVITY OF THE YOUNG CONCEPTUS IN THE RAT

Summary.: Luteotrophic activity of the young conceptus was investigated on the basis of the maintenance of pregnancy produced artificially by means of egg transfer to the uteri of adult `cycling' rats treated with progesterone for 5 to 11 days. Pregnancy rate varied according to the duration of progesterone treatment; the longer the treatment, the higher the rate of success. Luteotrophic activity of the conceptus appeared soon after implantation and increased gradually to the time of establishment of the foetal placenta.