Relationship between age of blastocyst formation and interferon-tau secretion by in vitro-derived bovine embryos.

@article{Kubisch1998RelationshipBA,
  title={Relationship between age of blastocyst formation and interferon-tau secretion by in vitro-derived bovine embryos.},
  author={H Michael Kubisch and M A Larson and R Michael Roberts},
  journal={Molecular reproduction and development},
  year={1998},
  volume={49 3},
  pages={254-60}
}
This study was designed to examine the relationship between the speed at which bovine embryos reach the blastocyst stage, their cell number, and interferon-tau production. A total of 800 oocytes were fertilized by frozen-thawed semen. On day 2, 44 hr after exposure to sperm, 78, 320, and 296 embryos were at the two-, four-, and eight-cell stages, respectively, with an overall cleavage rate of 86.8%. Within these three groups 15 (19.2%), 106 (33.1%), and 158 (53.4%) embryos proceeded to the… CONTINUE READING