光周期和气味信号对雄性布氏田鼠血浆睾酮含量的影响  

EFFECT OF PHOTOPERIOD AND CONSPECIFIC ODOR ON THE PLASMA TESTOSTERONE LEVEL OF MALE BRANDT'S VOLE (MICROTUS BRANDTI)

作　　者：张立[1] 孙儒泳[1] 房继明[1] 

机构地区：[1]北京师范大学生命科学学院,北京100875

出　　处：《动物学报》2001年第4期468-472,共5页ACTA ZOOLOGICA SINICA

基　　金：农业虫鼠害综合治理国家重点实验室基金 (No .95 0 1)资助项目&&

摘　　要：Chemical signals provide important cues in social behavior of many mammalian speciesly, mediating sexual, aggressive, parental and spacing behavior, as well as influencing an animals internal hormonal milieu. Conspecific novel males substrate was given as individual odor stimulus to adult male Brandts voles(Microtus brandti) that left in individual cases in long\|photoperiod (LD) and short\|photoperiod (SD) resfectioely. The plasma testosterone of these male actors was mensurated by radioimmunoassay. The results indicated that plasma testosterone increased with the duration that the male vole was exposed to the odor of a novel male. Plasma testosterone concentration in LD males increased sigrificanily than those in SD males in 30 minutes.After 1 hour or 2 hours, exposed to the novel scents, the testosterone levels of LD males were higher than SD males, but didnt show significant difference. The results demonstrated that the chemical signals induced releasing of androgen and the increase of plasma testosterone of males voles exposed to novel conspecific odors was also influenced by the photoperiod. It suggest that the change of testosterone concentration would underlie the odor producing and odor preferences of Brandts vole.Chemical signals provide important cues in social behavior of many mammalian speciesly, mediating sexual, aggressive, parental and spacing behavior, as well as influencing an animals internal hormonal milieu. Conspecific novel males substrate was given as individual odor stimulus to adult male Brandts voles(Microtus brandti) that left in individual cases in long\|photoperiod (LD) and short\|photoperiod (SD) resfectioely. The plasma testosterone of these male actors was mensurated by radioimmunoassay. The results indicated that plasma testosterone increased with the duration that the male vole was exposed to the odor of a novel male. Plasma testosterone concentration in LD males increased sigrificanily than those in SD males in 30 minutes.After 1 hour or 2 hours, exposed to the novel scents, the testosterone levels of LD males were higher than SD males, but didnt show significant difference. The results demonstrated that the chemical signals induced releasing of androgen and the increase of plasma testosterone of males voles exposed to novel conspecific odors was also influenced by the photoperiod. It suggest that the change of testosterone concentration would underlie the odor producing and odor preferences of Brandts vole.

关 键 词：布氏田鼠 光照周期 气味信号 血浆睾丸酮 雄鼠 性激素 行为反应 

分 类 号：Q68[生物学—生物物理学]