Reproduction Abstracts

Progesterone (P4) produced by the corpus luteum (CL) is required for the attainment of endometrial receptivity and further conceptus implantation. Induction of puberty with PMSG/hCG in gilts results in lower P4 concentration in blood serum, that is accompanied by decreased endometrial expression of genes involved in conceptus-maternal interactions. Therefore, the present study aimed to determine the effect of P4 supplementation in pregnant gilt...