1.无菌小鼠的寿命是普通小鼠寿命的1.5倍 19世纪末,细菌学家巴斯德,根据生物在进化过程中,动物与微生物之间的依存关系,认为没有微生物,动物的生存是不可能的,便产生了培育无菌动物的设想。经过科学家们半个多世纪的努力,锐尼尔(Reyniers)于1945年,培育出无菌小鼠。小鼠妊娠后21日出生,在出生的前一天,从母体的子宫中取出胎儿,把带着羊 1. Sterile mice have 1.5 times the lifespan of normal mice At the end of the 19th century, the bacteriologist Pasteur, according to the biological evolutionary process, the interdependence of animals and microorganisms, that there is no microorganism and that the animals survive Impossible, it has created the idea of ​​breeding sterile animals. After more than half a century of hard work by scientists, Reyniers bred sterile mice in 1945. Mice were born on the 21st after pregnancy, and on the day before birth, the fetus was removed from the womb of the mother,