肝毛细线虫对雌性布氏田鼠繁殖参数的影响  

The Influence of Capillaria hepatica on the Breeding Parameters of Female Brandt′s Vole(Lasiopodomys brandtii)

作　　者：唐宇 赛那 郭聪[1] 赵栋 邹永波[1,2] 于成 关其格 哈斯其木格 

机构地区：[1]四川大学生命科学学院,成都610065 [2]中国科学院动物研究所,北京100101 [3]内蒙古锡林郭勒盟自然保护区,锡林浩特026000 [4]内蒙古锡林郭勒盟阿巴嘎旗草原站,阿巴嘎旗026100 [5]内蒙古锡林郭勒盟阿巴嘎旗疾病预防控制中心,阿巴嘎旗011400

出　　处：《动物学杂志》2018年第1期55-60,共6页Chinese Journal of Zoology

基　　金：公益性行业(农业)科研专项经费项目(No.201203041)

摘　　要：2005年5月,在内蒙古锡林郭勒盟阿巴嘎旗北部,研究了肝毛细线虫(Capillaria hepatica)对典型草原区雌性布氏田鼠(Lasiopodomys brandtii)繁殖参数的影响。采用标准夹线法捕获鼠类,对捕获的鼠类进行常规生物学解剖,根据虫卵有无确定肝毛细线虫病感染情况,记录鼠类名称、体长、体重、胴体重、繁殖特征以及肝毛细线虫病感染情况。由于体重是划分鼠类年龄的常用指标之一,结合布氏田鼠的繁殖特征研究数据,采用25.1~55.0 g之间的雌性个体作为本研究分析样本,并将其分为25.1~35.0 g、35.1~45.0 g和45.1~55.0 g体重(年龄)组。采用卡方检验比较分析同一体重(年龄)组内,肝毛细线虫病感染情况与雌性布氏田鼠妊娠率的关系,T检验分析感染情况与胎仔数的关系。结果显示,在各个体重(年龄)组中,感染肝毛细线虫组布氏田鼠雌鼠妊娠率均略低于未感染组,但感染情况与妊娠情况无显著相关关系(P>0.05);感染肝毛细线虫布氏田鼠胎仔数低于未感染布氏田鼠,感染情况与胎仔数有显著相关关系(P<0.05)。结果表明,肝毛细线虫病对布氏田鼠妊娠率无明显影响,但对布氏田鼠胎仔数有明显的负面影响。The influence of Capillaria hepatica on the breeding parameters of female Brandt′s Vole（Lasiopodomys brandtii） was investigated in typical steppe in Abagaqi, Inner Mongolia in May 2005. Standard killing trap method was used to capture rodents, then dissected to determine the infection of C. hepatica. We recorded the rodents′ species, body length, body mass, carcass mass, reproductive characteristics and the infection of C. hepatica. As body mass of rodents is one indicator of age, we chose those females with body mass between 25.1﹣55.0 g as the analysis sample, based on the previous research data of this rodent species about its reproductive characteristics. We compared and analyzed the relationship between the infection situation of C. hepatica and the pregnancy rate by Chi-square test and the relationship between the infection situation and the number of fetuses by T test for the females in the same and different mass（age） group（Table 1 2）. The pregnancy rate of the infected group was slightly lower than those uninfected group. The pregnancy rate was 59.1% and 64.5% for those weighed 25.1﹣35.0 g mass（age） group, 57.7% and 67.6% for 35.1﹣45.0 g mass（age） group, 65.2% and 67.8% for 45.1﹣55.0 g body mass（age） group. No significant correlation（P 0.05） was detected between the infection situation and the pregnancy rate, however the number of fetuses for the infected group was less than the uninfected group, and the infection situation was significantly correlated with the number of fetuses（P 0.05）. The results indicated that the infection situation of C. hepatica had no significant effect on the pregnancy rate of Brandt′s Voles, but produced a negative effect on the number of fetuses on Brandt′s Voles.

关 键 词：肝毛细线虫 布氏田鼠 妊娠率 胎仔数 

分 类 号：Q958[生物学—动物学]