Possibility of the prediction of parturition from the prepartum concentrations of steroid hormones in blood plasma of cows

DOI JASI Web Site Web Site 1 References

Bibliographic Information

Other Title
  • 血中ホルモン濃度からの分娩日予測の可能性
  • ケッチュウ ホルモン ノウド カラ ノ ブンベンビ ヨソク ノ カノウセイ

Search this article

Abstract

<p>Relationship between prepartum blood plasma steroid hormone concentrations and days (and hours) for parturition were investigated using Holstein pregnant cows. The concentrations of estradiol-17β in blood plasma 7 or 10 days before the due date were highly correlated to the days until calving. When parturitions were occurred before the due date, the concentrations of progesterone and cortisol 7 days before the due date were highly correlated to the days until calving. On the other hands, the estradiol-17β concentrations in blood plasma before dexamethasone injection were highly correlated to the time between calving and prostaglandin injection when artificial parturition was induced by dexamethasone and prostaglandin injections. These results suggested that we can expect the day of natural parturition and the time of induced parturition from the prepartum concentrations of estradiol-17β in blood plasma of cows.</p>

Journal

References(1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top