我们研究了产前低氧对于产期大鼠心脏收缩功能和对Ca++反应的影响。将妊娠大鼠从妊娠第14～18天起暴露在中度高原低氧环境。将其胎儿（产前22天）和其子代（生后1、4、7天）离体的心脏按兰根道尔夫法给予灌注。记录灌注液Ca++浓度为1．25mmol／L和从0．6上升至10．0mmol／L情况 We examined the effects of prenatal hypoxia on cardiac contractile function and response to Ca ++ in the developing stage. Pregnant rats from the 14th to the 18th day of pregnancy exposed to moderate high altitude hypoxic environment. The heart of his fetus (prenatal 22 days) and his offspring (1, 4, 7 days after birth) were perfused by Ranger-Dowff. Record perfusion solution Ca ++ concentration of 1.25mmol / L and from 0.6 to 10.0mmol / L case