Increasing ovulation rate in sheep by active immunization against an ovarian steroid androstenedione

@article{Scaramuzzi1977IncreasingOR,
  title={Increasing ovulation rate in sheep by active immunization against an ovarian steroid androstenedione},
  author={Rex John Scaramuzzi and William G. Davidson and Paul F. A. Van Look},
  journal={Nature},
  year={1977},
  volume={269},
  pages={817-818}
}
ALTHOUGH low rates of ovulation constitute a major limitation to increased productivity of sheep and cattle little is known about the mechanisms that control ovulation either within or among species. Androstenedionem a week androgen secreted by ovaries1 and adrenals1, is quantitatively the major steroid secreted by the ovary before ovulation in several species2 and as such it might have a role in determining ovulation rate; it is also an important precursor for the biosynthesis of oestrogens… CONTINUE READING

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