In ruminants, conceptus elongation requires the endometrium and its secretions. The amino
acid, carbohydrate, and protein composition of the uterine lumen during early pregnancy …

Progesterone regulates the endometrium to support pregnancy establishment and
maintenance. In the ruminant, one action of progesterone early in pregnancy is to alter …

Following blastocyst hatching, ungulate embryos undergo a prolonged preimplantation
period termed conceptus elongation. Conceptus elongation constitutes a highly susceptible …

Background: During the process of elongation, the embryo increases in size within the
uterus, while the extra-embryonic tissues (EETs) develop and differentiate in preparation for …

Nowadays, information and knowledge generated about the main ingredients used in cattle
diets have enabled greater assertiveness in their formulation. Among the ingredients, amino …

Embryo survival and pregnancy success is increased among animals that exhibit estrus
prior to fixed time-artificial insemination, but there are no differences in conceptus survival to …

Apoptotic activity is a common physiological process which culminates at the blastocyst
stage in the preimplantation embryo of many mammals. The degree of embryonic cell death …

Heifer conception rate to the first service (HCR1) is defined as the number of heifers that
become pregnant to the first breeding service compared to the heifers bred. This study …

Peroxisome proliferator-activated receptors (PPARs) belong to the nuclear receptor family of
ligand-dependent transcription factors. PPARs have been shown to be important regulators …

Conserved in female reproduction across all mammalian species is the estrous cycle and its
regulation by the hypothalamic-pituitary-gonadal (HPG) axis, a collective of intersected …