Embryotoxicity of a regressing corpus luteum in beef cows supplemented with progestogen.

@article{Buford1996EmbryotoxicityOA,
  title={Embryotoxicity of a regressing corpus luteum in beef cows supplemented with progestogen.},
  author={W I Buford and Nazir Ahmad and F. Neal Schrick and Roy L. Butcher and Pauline E. Lewis and E. Keith Inskeep},
  journal={Biology of reproduction},
  year={1996},
  volume={54 3},
  pages={531-7}
}
Postpartum cows with short-lived corpora lutea produce embryos that arrive at the uterus, but pregnancy rates are low even with exogenous progestogen. Four experiments were conducted to determine whether prostaglandin (PG) F2 alpha, known to cause early luteolysis, could have a direct effect on embryonic loss. Exogenous progestogen was injected s.c. twice daily in each experiment, starting 3 or 4 days after estrus (day of estrus = Day 0). Nonlactating, cycling beef cows were mated and injected… CONTINUE READING