title: Prediction of fetal sex in cattle by testosterone levels in allantoic fluid.
abstract: The testosterone concentration in allantoic fluid between 90 and 150 days of gestation in cattle can be used to determine the fetal sex; values were 442 +/- 20-3 (S.E.M.) pg testosterone/ml for males fetuses and 215 +/- 8-2 pg/ml for female fetuses.
mesh_terms: D000482:Allantois / Q000378:metabolism*; D000653:Amniotic Fluid / Q000032:analysis; D000818:Animals; D002417:Cattle / Q000196:embryology*; D005321:Extraembryonic Membranes / Q000378:metabolism*; D005260:Female; D008297:Male; D011247:Pregnancy; D012732:Sex Determination Analysis; D013739:Testosterone / Q000032:analysis*
chemical_list: D013739:Testosterone