Prediction of fetal sex in cattle by testosterone levels in allantoic fluid.
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.
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*
D013739:Testosterone