Pregnancy rate in timed-mated, spontaneously cyclic rhesus monkeys, Macaca mulatta

C. A. Eddy, R. S. Shenken, C. J. Pauerstein

Research output: Contribution to journalArticlepeer-review


After detection of the preovulatory oestradiol-17β peak in blood, females were placed with a male and left undisturbed during mating (N = 28, 94 cycles) or were exposed to serial diagnostic laparoscopy (1-4 occasions) to monitor ovulation (N = 87, 224 cycles). A total of 86 pregnancies resulted from timed mating in the 318 menstrual cycles (27% rate). When periovulatory laparoscopy was performed, the pregnancy rate was 22.3%. In the absence of laparoscopy the pregnancy rate was 38.3%. (P<0.003). These pregnancy rates are similar to those of women and show an adverse effect of laparoscopy on pregnancy rate.

Original languageEnglish (US)
Pages (from-to)705-710
Number of pages6
JournalJournal of reproduction and fertility
Issue number2
StatePublished - 1986

ASJC Scopus subject areas

  • Physiology
  • Embryology
  • Molecular Biology
  • Obstetrics and Gynecology
  • Developmental Biology


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