摘要
本文报道了用胴体重法将大足鼠分为幼体、亚成体、成体和老体４个年龄组：幼体４２.０ｇ以下，亚成体４２.１～６６．０ｇ，成体６６．１～１４２．０ｇ，老体１４２．１以上。分析其胴体重与体重的相互关系及年龄组的体重变化。结果表明，胴体重法准确简便，可作为大足鼠年龄鉴定方法之一。
The purpose of this report was R. nitidus were divided into 4 age groups ac- cording to it's body weight exduding viscera,R. nitidus were captured in Eryuan county from July 1997 to August 1998. That is Juveniles＜42. 0g,Subadults 42. 1 -66. 0g,Adults 66. 1- 142. 0g,The seniles＞142. 1g. Analyzing the correlation between body weight excluding vis- cera and body weight,and the change of body weight in each age groups of R. nitidus,the re- sults showed the body weight excluding viscera could be the base of age identitfication for R. nitidus.
出处
《医学动物防制》
2000年第8期398-400,共3页
Journal of Medical Pest Control
关键词
云南
洱源县
大足鼠
年龄鉴定
幼体
Rattus nitidus Body weight excluding visecra Age identification
