title: Presence of placental lactogen in bovine conceptuses before attachment.
abstract: Placental lactogen has been detected by radioreceptor assay in bovine conceptuses colletected between 17 and 25 days post coitum, at or shortly after the time of appearance of binucleate cells in the bovine trophectoderm, but before attachment or implantation.
mesh_terms: D000818:Animals; D002417:Cattle; D004622:Embryo, Mammalian / Q000032:analysis*; D047108:Embryonic Development; D005260:Female; D010928:Placental Lactogen / Q000032:analysis*; D011247:Pregnancy; D011270:Pregnancy, Animal
chemical_list: D010928:Placental Lactogen