Effect of estradiol preceding and progesterone subsequent to ovulation on proportion of postpartum beef cows pregnant

L A Ciernia,G A Perry, M F Smith,J J Rich, E J Northrop, S D Perkins,J A Green, A L Zezeski,T W Geary

Animal Reproduction Science（2021）

引用 13|浏览3

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摘要

•High circulating estradiol at induced ovulation improved embryo survival in beef cows.•Preovulatory estradiol had greater impact than luteal progesterone on embryo survival.•Postovulatory progesterone only improved pregnancy when preovulatory estradiol is low.•Preovulatory estradiol had a significant effect on pregnancy success in beef cows.

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关键词

Pregnancy,Cattle,Postovulatory progesterone concentrations,Preovulatory estradiol concentrations

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