to evaluate the response of luteal cells to in vitro stimulation with luteinizing hormone ( lh ) or dibutyryl cyclic adenosine monophosphate ( dbcamp ) and determine the secretion of progesterone by the fetoplacental unit , the corpora lutea were removed surgically in 10 cows ( luteectomy ) at 250 days ( 5 cows ) or 270 days ( 5 cows ) of gestation .
C0024156
luteal cells
C0010092
corpora lutea