Reproduction · 1979 · 30 citations · 11 references
Life SciencesAnimal SciencesDevelopmental BiologyEmbryogenesisEmbryologyPlacental BiologyPlacental DevelopmentTrophectoderm Differentiation
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.
11