IRM-2近交系小鼠的生殖生长特性  

Characteristics of the Reproduction and Growth of IRM-2 Inbred Strain Mouse

作　　者：王月英[1] 周继文[1] 王汝勤[1] 赵忠萍[1] 岳井银[1] 吴红英[1] 刘鹏[1] 张荷清[1] 穆传杰[1] 

机构地区：[1]中国医学科学院中国协和医科大学放射医学研究所,天津300192

出　　处：《中国实验动物学报》2001年第2期103-106,共4页Acta Laboratorium Animalis Scientia Sinica

基　　金：国家"九五"重点项目! (96 A2 3 0 6 0 4 )

摘　　要：目的　获取IRM 2近交系小鼠的生殖生长特性的有关资料。方法　ICR JCL为母本 ,以 61 5小鼠为父本杂交选育的近交系小鼠IRM 2 ,现已繁育至第 38代。经过对其生殖、生长特性的观察和测定来取得相关资料。结果　该小鼠出生后 45d性成熟 ;繁殖能力强 ,平均每窝产仔数为 8只以上 ,最高可达 1 5只 ;生长发育迅速 ,出生后 60d体重可达 2 8g以上 ,各脏器重均高于亲代鼠。结论　从各项指标来看 ,IRMObjective\ To obtain the information of characteristics of reproduction and growth of IRM-2 inbred strain mouse.Methods\ The growth and reproduction performances including litter size, weanling rate,body length, body weight and organ weight were investigated in the IRM-2 inbred strain mouse.Results\ The reproductive capacity of IRM-2 mouse was stronger than the parental strain 615 mouse,for litter size the former was 8.5 and the latter 6.5. The weanling rate observed in IRM-2 strain was 100% and the longest life span was over 39 months. The mean body weight for male and female was 28.9g and 24.6g and the body length 9.6cm and 8.8cm at 10 weeks old,respectively,suggesting that the growing speed of IRM-2 mouse was quicker than that of parental mouse. Organ weight was higher in male than in female,except thymus.Conclusion\ The results showed that IRM-2 is a fine inbred strain mouse.\;

关 键 词：生殖生长 父本杂交 窝产仔数 母本 繁育 品系 选育 出生后 近交系小鼠 ICR 

分 类 号：Q95-331[生物学—动物学] S513[农业科学—作物学]