Used in reproductive research to measure maturation promoting factor (MPF) levels during oocyte development in pigs. Helps assess oocyte quality and developmental competence in assisted reproductive technologies. Widely applied in studies of embryology, fertility, and ovarian physiology. Supports optimization of in vitro maturation (IVM) protocols by monitoring MPF activity as a biomarker of meiotic progression. Useful for evaluating effects of hormones, drugs, or environmental factors on oocyte maturation.