Abstract: Abstract:Objective To compare and study three inspecting methods which test whether the mice were pregnant or not． Method Check and study the fertilization of the same mice group with three methods． The first method was to use vaginal suppository to identify the mice were pregnant or not; the second method was to use vaginal suppository and check mice’s weight; the third method was to check mice’s weight． Ｒesult The first method sees the sensitivity of the mice’s pregnancy was 0. 71 and the specificity was 0. 47． According to the second method，the sensitivity was 0. 71 and the specificity was 0. 96． And third method shows that the sensitivity was 0. 96 and the specificity was 0. 94． Conclusion For the methods detecting mouse gestation GD 10 and late state，observing change of weight is more reliable and practical than other methods in the process of inspecting pregnant mouse in the GD 10 period and late stage．

Key words: BALB / c mice, pregnancy, inspecting method

摘要： 摘要:目的对三种不同的检测BALB / c 小鼠是否受孕的方法进行比较研究。方法只检测阴栓(方法一)、检测 阴栓结合称量体质量(方法二)、只称量体质量(方法三)，用3 种方法检测同一组雌鼠的受孕情况并比较各方法的 检测能力。结果方法一检测小鼠受孕的灵敏度为0. 71、特异度为0. 47，方法二灵敏度为0. 71、特异度为0. 94，方 法三灵敏度为0. 96、特异度为0. 94。结论在对受孕( gestation day，GD)10 天及后期孕鼠的检测方法中，称量体质 量较其它方法更为可靠和实用。

关键词: BALB / c 小鼠, 受孕, 检测方法