In order to study the influence of weightlessness, cosmic rays and other facts upon the biological characters of coccidia in chickens, we, for the first time, placed a strain of sporulated Eimeria tenella into a retrievable scientific satellite. 为探讨微重力与太空辐射等因素对鸡球虫生物学特性的影响,我们首次将一株已孢化的柔嫩艾美耳球虫(Eimeriatenella)搭载于返回式科学试验卫星。