In the present study, experiments were conducted to assess the effects of caffeine on in vitro fertilization of pig follicular oocytes. Cumulus-oocyte complexes (COCs) were collected from porcine ovaries from slaughterhouses, cultured in in vitro maturation medium 1 (IVM1) at độ C for 20-22 hours and then in in vitro maturation medium 2 (IVM2) for the next 24 hours. | Effects of caffeine on in vitro fertilization of pig follicular oocytes