| 孙平,赵亚军,赵新全.2008.雄性柴达木根田鼠断奶后对亲本尿气味的记忆.动物学杂志,43(5):45-50. |
| 雄性柴达木根田鼠断奶后对亲本尿气味的记忆 |
| Retention to Parental Urine Odour of Postweaning Male Chaidamu Root Vole |
| 投稿时间：2008-03-10 修订日期：2008-07-02 |
| DOI： |
| 中文关键词: 柴达木根田鼠 亲本尿气味 记忆时间 子亲识别 |
| 英文关键词:Microtus limnophylus Parental odour Retention Offspring-parent recognition |
| 基金项目:国家自然科学基金项目(No.30500073,30770289);河南科技大学人才科研基金项目(No.05-129);中国博士后科学基金项目(No.20070420525) |
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| 中文摘要: |
| 为了研究亲子分开后雄性柴达木根田鼠(Microtus limnophylus)对亲本尿气味的记忆持续时间,分别在未分开(20日龄),以及分开10d(30日龄)、20d(40日龄)、30d(50日龄)、40d(60日龄)时,以新鲜尿作为气味源,在行为观察箱中记录雄性柴达木根田鼠对不同气味源的行为响应模式。结果表明:(1)未分开时,雄鼠对父本气味的接近频次显著高于陌生雄鼠气味;分开10d时,雄鼠对父本气味的访问时间显著多于对陌生雄鼠气味的访问时间;分开20d时,雄鼠对陌生雄鼠气味的接近潜伏期极显著短于父本,对陌生雄鼠气味的访问时间极显著长于父本,其遭遇父鼠气味时的自我修饰频次显著少于陌生雄鼠气味。(2)分开30d后,雄鼠对父本和陌生雄鼠气味的行为响应没有明显差异。以上结果表明,在亲子分开20d时,雄鼠仍能识别父本与陌生雄鼠的气味;在分开30d后,雄鼠不再能够识别父本与陌生雄鼠的气味。(3)在未分窝时,雄性柴达木根田鼠幼仔对母本和陌生雌鼠气味的行为响应没有任何差异。(4)在分开10d时,雄性柴达木根田鼠对母本和陌生雌鼠气味表现出不同的行为响应模式;分开20~40d时,雄鼠对母本与陌生雌鼠气味的行为响应没有任何差异。以上结果表明,在亲子分开10d时,雄鼠仍能识别母本与陌生雌鼠的气味;在分开20d后,雄鼠不再能够识别母本与陌生雌鼠的气味。因此,雄鼠对父本气味的嗅觉记忆时间可以持续到亲子分开20~30d之间;其对母本气味的嗅觉记忆时间可以持续到亲子分开10d时。 |
| 英文摘要: |
| Memory retention of male offspring to their parental urine odors was studied on Chaidamu Root Voles(Microtus limnophylus).Male offspring weaned at 10 days in age.Experiments were conducted in 0,10,20,30,and 40 days after weaning,male offspring were exposed to their parental urine and to unrelated adult male's urine.The results showed that:(1)male offspring approached to paternal odor more frequency than to strange one when they were not separate from their parents.The time difference in visiting their paternal and strange male's odor was significant in 10 d after weaning.There was a significant difference in duration of latency,visiting time and self-grooming frequency in 20 d after weaning between they approach to their paternal odor than to strange one;(2)no difference in behavioral responses to paternal and strange odor was found when subjects were separated 20 to 30 d with their paternal;(3)no difference was recorded in behavioral responses to the odor of their maternal and strange adults when subjects were not weaned;(4)male offspring performed different behavioral patterns to maternal odor than to strange female's odor in 10 d after weaning,while no difference in behavior was recorded when they were weaned in 20 d after weaning.In conclusions,the memory of male offspring to their paternal odor could last 20-30 d after weaning,while their memory to their maternal odor only last 10 d after weaning. |
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