Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1983;24(3):287-94.
doi: 10.1186/BF03546732.

Plasma levels of progesterone and oestradiol-17 beta in reindeer (Rangifer tarandus tarandus) during pregnancy

A K Blom, O V Sjaastad, E Jacobsen

Plasma levels of progesterone and oestradiol-17 beta in reindeer (Rangifer tarandus tarandus) during pregnancy

A K Blom et al. Acta Vet Scand. 1983.

Abstract
in English, Norwegian

The plasma concentrations of progesterone and oestradiol-17p during pregnancy and the first 20 days after parturition were estimated in reindeer. The concentration of progesterone in the period 75–25 days prior to parturition was significantly higher than in the period 200– 75 days prior to parturition (P < 0.001). During the last 25 days before parturition the concentration decreased significantly. The concentration of oestradiol-17β was in most cases below 70 pg/ml until 50 days prior to parturition. During the last 25 days of pregnancy there was a significant increase in oestradiol-17β and the ratio progesterone/ oestradiol-17β was markedly lower than in the period 75–25 days before calving.

Plasmakonsentrasjonene av progesteron og østradiol-17β ble un-dersøkt under drektighet og de første 20 dagene etter kalving hos reinsdyrsimler. Plasmakonsentrasjonen av progesteron i perioden 75–25 dager før kalving var signifikant lavere enn i perioden 200–75 dager før kalving (P < 0.001). I de siste 26 dagene før kalving var det en signifikant reduksjon i plasma progesteron. Plasmakonsentrasjonen av østradiol-17β var i de fleste tilfeller under 70 pg/ml inntil 50 dager før kalving. I de siste 25 dager av drektigheten var det en signifikant økning i plasma østradiol-17β og ratio progesteron/østradiol-17β falt market i forhold til perioden 75–25 dager før kalving.

PubMed Disclaimer

References

    1. Austad R, Lunde A, Sjaastad ØV. Peripheral plasma levels of oestradiol-17β and progesterone in the bitch during oestrous cycle, in normal pregnancy and after dexamethasone treatment. J. Reprod. Fert. 1976;46:129–136. doi: 10.1530/jrf.0.0460129. - DOI - PubMed
    1. Bassett JM, Oxborrow TJ, Smith ID, Thorburn GD. The concentration of progesterone in the peripheral plasma of the pregnant ewe. J. En doer. 1969;45:449–457. - PubMed
    1. Bedford, C. A., J. R. G. Challis, F. A. Harrison & R. B. Heap: The role of oestrogens and progesterone in the onset of parturition in various species. J. Reprod. Fert. 1972, Suppl. 16, 1–23. - PubMed
    1. Donaldson LE, Bassett JM, Thorburn GD. Peripheral plasma progesterone concentration of cows during puberty, oestrous cycles, pregnancy and lactation, and the effects of undernutrition or exogenous oxytocin on progesterone concentration. J. Endocr. 1970;48:590–614. doi: 10.1677/joe.0.0480599. - DOI - PubMed
    1. Fylling P. The effect of pregnancy, ovariectomy and parturition on plasma progesterone levels in sheep. Acta endocr. 1970;65:273–283. - PubMed

LinkOut - more resources