Abstract: Objective To investigate the electrocardiogram(ECG)features of rhesus monkeys in consciousness． Methods Sixty healthy rhesus monkeys，2—3 years old，2～3．5 kg，and 30 each gender，were selected．ECG changes of the lead I，Ⅱ，11I，aVR，aVL，aVF in resting conscious monkeys were examined，and the average heaM rate，mean electrical axis，P wave，QRS complex，amplitude of T wave，PR interval，QT interval and so on，were calculated．Results and Conclusions Sinus rhythm was found in all the 60 rhesu8 monkeys．In most of the rhesus monkeys，the P wave was upright in H lead，S wave was absent in 1I、Ul、aVF leads，and there was no Q wave in aVR lead．The average voltage of R wave in female rhesus monkeys was significantly higher than that of the males (P<0．005)．In rhesus monkeys，the P wave is sharp，the QRS is diversified，the QT interval K value is 0．298± 0．030，the ST segment locates at the isoelectric line，and the T wave is smooth in six leads and upright in the II lead．In conclusion，we established the basic ECG data of rhesus monkeys．

Key words: Rhesus monkeys, Electrocardiogram(ECG)

摘要： 目的对中国恒河猴主要组织相容性复合体(MHC)l型部分基因进行携带情况调查与分析。方法采用序 列特异性引物(PCR—SSP)分型方法对华南灵长类动物研究中心繁殖的30只谱系清晰的中国恒河猴(Macaca mulatta)的32个MHC I型分子位点进行检测。结果采用的32对引物中，中国恒河猴可检出携带23个MHC—I等 位基因，但基因携带频率存在很大的差异，由3．57％至82．14％不等。结合遗传谱系分析，判断A1·21和b．2睾05 之间以及B·04和B·30之间可能就是连锁的。结论中国恒河猴携带能控制病毒复制的MHC I型基因位点的 频率较高，其基因携带频率与已发表的印度恒河猴携带频率存在明显差异。本研究为促进中国恒河猴在AIDS研 究中的应用，以及为建立携带特定MHC I基因实验猴小种群提供了依据。

关键词: MHC I型, 中国恒河猴, PCR-SSP