Research Article

Dynamics of Progesterone, TNF-α, and a Metabolite of PGF2α in Blood Plasma of Beef Cows following Embryo Transfer

Figure 2

Concentrations (Mean ± SEM) of progesterone among treatment groups on d 7, d 14, and d 21. Treatment by day, concentration of progesterone decreased in cows from all treatments from d 14 to d 21 ; CIDR = controlled drug release; GnRH = gonadotropin releasing hormone; hCG = human chorionic gonadotropin.