Concentration of oestradiol, progesterone, luteinizing hormone and follicle-stimulating hormone in the jugular venous plasma of ewes during the oestrous cycle.

@article{Pant1977ConcentrationOO,
  title={Concentration of oestradiol, progesterone, luteinizing hormone and follicle-stimulating hormone in the jugular venous plasma of ewes during the oestrous cycle.},
  author={Homnath Pant and Christopher Hopkinson and R. J. Fitzpatrick},
  journal={The Journal of endocrinology},
  year={1977},
  volume={73 2},
  pages={247-55}
}
Changes in the concentrations of ovarian steroids and pituitary gonadotrophins were measured by radioimmunoassay in the jugular plasma of six Clun Forest ewes throughout the oestrous cycle. The concentration of oestradiol began to rise 12-14 h before the onset of oestrus from values of 11-2 +/- 0-36 (S.E.M.) pg/ml during the luteal phase to 21-1 +/- 2-01 pg/ml at -8 to 0 h (oestrus). There was no distinct increase during the luteal phase. Circulating progesterone varied in a cyclic manner with… CONTINUE READING