Effect of progesterone supplementation on pregnancy and embryo survival in ewes.

@article{Diskin1989EffectOP,
  title={Effect of progesterone supplementation on pregnancy and embryo survival in ewes.},
  author={Michael G. Diskin and Gordon D. Niswender},
  journal={Journal of animal science},
  year={1989},
  volume={67 6},
  pages={1559-63}
}
Two hundred eighteen ewes were used in experiments 1) to develop a progesterone supplementation regimen capable of sustaining serum concentrations of progesterone at about 2.0 ng/ml for a period of 50 d (Exp. 1) and 2) to determine the effects of progesterone supplementation (d 6 to 50 after mating) on pregnancy and embryo survival rates in mated ewes (Exp. 2). In ovariectomized ewes in Exp. 1, s.c. administration of four cylindrical (9.5 x 60 mm) silastic implants, containing 20% (1.1 g… CONTINUE READING