with beef cows and heifers
, as well as in lactating dairy cows , have shown that animals
receiving eCG toward the end of estrous synchronization
programs seem to have greater plasma progesterone (P4)
concentrations during the subsequent luteal phase. The
use of eCG modified specific steroidogenesis-related features (mitochondrial shape and large luteal cell number)
when administered before follicular deviation and caused
changes related to tissue proliferation (small luteal cell
number and total mitochondrial volume), when administered after ovarian follicular deviation