the cl formed following pgf-induced estrus had fewer large ( p less than .002 ) and small ( p less than .09 ) luteal cells in heifers , a lower ( p less than .008 ) percentage composition of histological type i and ii luteal cells in cows and a lower ( p less than .0001 ) in vitro p4 response to lh in both cows and heifers when compared with the cl formed following spontaneous estrus .
C0024156
luteal cells
C0010092
cl