Initial bovine embryogenesis: embryonic transcription and oviduct growth factors [platelet derived growth factor, PDGF-B, fibroblast growth factor, bFGF, insulin-like growth factor I, IGF-I]

analyse de tissus animal embryos bovin cattle cows crecimiento croissance desarrollo embrionario embriones animales embryon animal embryonic development environmental factors extrait tissulaire facteur de croissance igf facteur du milieu factor de crecimiento igf factores ambientales ganado bovino growth heifers hybridation hybridization in vitro experimentation in vitro fertilization insulin-like growth factor muestra de tejido novilla oviducte oviductos oviducts physiological regulation platelets superovulation thrombocyte tissue analysis tissue extracts trombocitos vaca vache