Basal and LH [luteinizing hormone]-induced progesterone secretion by bovine luteal cells collected during different phases of the oestrous cycle

age ciclo estral ciclo estrale corpo luteo corps jaune corpus luteum cows cultivo in vitro culture in vitro cycle oestral edad in vitro culture in vitro experimentation lh oestrous cycle progesterona progesterone radioimmunoassay secretion secrezione sperimentazione in vitro stimoli stimuli stimulus technique radioimmunologique vaca vacche vache