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  • Title: Amniocentesis and antenatal sex determination in the rhesus monkey (Macaca mulatta).
    Author: Hess DL, Matayoshi K, Baker CA, Hendrickx AG.
    Journal: J Med Primatol; 1979; 8(4):244-51. PubMed ID: 119051.
    Abstract:
    Antenatal sex was correctly identified in 87.5% of the rhesus monkeys studied by evaluation of sex chromatin bodies in the exfoliated cells present in amniotic fluid. Fluid samples were obtained by either amniocentesis, amnioscopy, or by cesarean section at 80--120 days of gestation. Amniotic fluid concentrations of progesterone, total estrogen, and testosterone were correlated with fetal sex. Concentrations of these hormones decreased over the time period examined. Amniocentesis is a simple procedure which provides for routine fetal sex determination.
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