Hamon M H, Heap R B
AFRC Institute of Animal Physiology and Genetics Research, Babraham, Cambridge, UK.
J Reprod Fertil. 1990 Sep;90(1):207-11. doi: 10.1530/jrf.0.0900207.
Steroid hormone concentrations have been measured in the peripheral plasma of 3 Barbary sheep over 3 breeding seasons. During pregnancy mean progesterone values rose initially and after a small decline between Days 30 and 50, increased again and remained between 17 and 28 nmol/l until the last 2 days of pregnancy. Oestradiol-17 beta reached a peak of about 300 pmol/l during mid-pregnancy, increasing to over 400 pmol/l in the last 5 days of pregnancy. Oestrone sulphate began to increase in concentration from about Day 40 of pregnancy and reached a peak of about 19 nmol/l by Day 120. Following a slight decrease from Day 130, there was a further rise in values just before parturition. Values for these steroids in the Barbary sheep studied were between those expected for domestic sheep and goats.
在三个繁殖季节中，对3只北非髯羊外周血浆中的类固醇激素浓度进行了测量。在怀孕期间，孕酮平均水平最初上升，在第30天至第50天之间略有下降后，再次上升，并在怀孕的最后两天前一直保持在17至28纳摩尔/升之间。雌二醇-17β在怀孕中期达到约300皮摩尔/升的峰值，在怀孕的最后5天增加到超过400皮摩尔/升。硫酸雌酮的浓度从怀孕约第40天开始增加，到第120天达到约19纳摩尔/升的峰值。从第130天开始略有下降后，在分娩前数值进一步上升。所研究的北非髯羊中这些类固醇的数值介于家绵羊和山羊的预期数值之间。
