Skip to main content
  • Published:

Plasma Levels of Progesterone and Oestradiol-17 β in Reindeer (Rangifer Tarandus Tarandus) During Pregnancy

Plasma konsentrasjoner av progesteron og østradiol-17β hos reinsdyr (Rangifer tarandus tarandus) under drektighet

Abstract

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.

Sammendrag

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.

References

  • Austad, R., A. Lunde & Ø. V. Sjaastad: 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.

    Article  CAS  Google Scholar 

  • Bassett, J. M., T. J. Oxborrow, I. D. Smith & G. D. Thorburn: The concentration of progesterone in the peripheral plasma of the pregnant ewe. J. En doer. 1969, 45, 449–457.

    CAS  Google Scholar 

  • 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.

  • Donaldson, L. E., J. M. Bassett & G, D. Thorburn: 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.

    Article  Google Scholar 

  • Fylling, P.: The effect of pregnancy, ovariectomy and parturition on plasma progesterone levels in sheep. Acta endocr. 1970, 65, 273–283.

    CAS  PubMed  Google Scholar 

  • Illingworth, D. V., R. B. Heap & J. S. Perry: Changes in the metabolic clearance of progesterone in the guinea-pig. J. Endocr. 1970, 48, 409–417.

    Article  CAS  Google Scholar 

  • Jacobsen, E. & S. Skjenneberg: Fors0k med ulike fôrblandinger til rein. (Experiments with different feeds in reindeer). Meldinger fra Norges Landbrukshøgskole 1979, 58, No. 34.

  • Johansson, E. D. B.: Progesterone levels in peripheral plasma during the luteal phase of the menstrual cycle measured by a rapid competitive protein binding tehcnique. Acta endocr. 1969, 61, 592–606.

    CAS  PubMed  Google Scholar 

  • Kelly, R. W., K. P. McNatty, G. H. Moore, D. Ross & M. Gibb: Plasma concentrations of LH, prolactin, oestnadiol and progesterone in female red deer (Gervus elaphus) during pregnancy. J. Reprod. Fert. 1982, 64, 475–483.

    Article  CAS  Google Scholar 

  • Leader-Williams, N. & A. M. Rosser: Ovarian characteristics and reproductive performance of reindeer, Rangifer tarandus. J. Re-prod. Fert. 1983, 67, 247–256.

    Article  CAS  Google Scholar 

  • Plotka, E. D., U. S. Seal, L. J. Verme & J. J. Ozoga: Reproductive steroids in white-tailed deer. IV. Origin of progesterone during pregnancy. Biol. Reprod. 1982, 26, 258–262.

    Article  CAS  Google Scholar 

  • Thorburn, G. D. & W. Schneider: The progesterone concentration in the plasma of the goat during the oestrous cycle and pregnancy. J. Endocr. 1972, 52, 23–36.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Blom, A.K., Sjaastad, Ø.V. & Jacobsen, E. Plasma Levels of Progesterone and Oestradiol-17 β in Reindeer (Rangifer Tarandus Tarandus) During Pregnancy. Acta Vet Scand 24, 287–294 (1983). https://doi.org/10.1186/BF03546732

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03546732

Key words