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首页> 外文期刊>Zoological Science >The Effects of Social Experience and Gonadal Hormones on Retrieving Behavior of Mice and their Responses to Pup Ultrasonic Vocalizations
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The Effects of Social Experience and Gonadal Hormones on Retrieving Behavior of Mice and their Responses to Pup Ultrasonic Vocalizations

机译：社会经验和性腺激素对小鼠行为的影响及其对幼犬超声发声的响应

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Pup ultrasonic vocalizations (USVs) are emitted from maternally separated pups and are thought to be a trigger for eliciting maternal behavior in mice. We investigated the effects of social experience and gonadectomy on the retrieving behavior of mice and their responses to pup USVs produced by a nanocrystalline silicon thermo-acoustic emitter. In each experiment, virgin, gonadectomized, sham-operated, sexually experienced, and parenting mice of both sexes were used, and the effects of these manipulations were compared in each sex. The retrieving behavior of both sexes increased with social experience or gonadectomy. In particular, mothers showed the highest retrieving activity among female groups, while castrated male mice showed the highest retrieving activity among male groups. All groups of female mice responded to pup USVs, with the responsiveness of sexually experienced female mice being the most enhanced. Unlike the females, virgin male mice did not respond to pup USVs, although socially experienced or castrated males showed this response; fathers exhibited the highest responsiveness. These results suggest that not only parenting experience, but also mating experience, may enhance retrieving activity and response to pup USVs in mice of both sexes. Nevertheless, the degree to which parenting experience contributed to the enhancement of both activities differed between the sexes. Furthermore, gonadectomy enhanced both activities in both sexes, although its effect was more prominent in males. Overall, our findings suggest that alteration in responsiveness of mice to pup USVs might be one of the changes in parental behavior caused by social experiences or gonadal hormones.
机译：幼犬超声发声（USV）从母体分离的幼犬发出，被认为是引发小鼠母体行为的触发因素。我们调查了社交经验和性腺切除术对小鼠的取回行为及其对由纳米晶硅热声发射器产生的幼小USV的反应的影响。在每个实验中，均使用了两性的处女，性腺切除，假手术，有性行为和育儿的小鼠，并比较了每种性别对这些操作的影响。随着社会经验或性腺切除术的出现，男女双方的检索行为均增加。特别是，母亲在雌性组中表现出最高的检索活性，而cast割的雄性小鼠在雄性组中表现出最高的检索活性。所有雌性小鼠组均对幼小USV作出反应，其中有性经验的雌性小鼠的反应性最强。与雌性动物不同，处女雄性小鼠对幼小USV没有反应，尽管有社会经验或cast割的雄性小鼠表现出这种反应。父亲表现出最高的反应能力。这些结果表明，不仅育儿经历，而且交配经历，都可以增强两性小鼠的检索活性和对幼小USV的反应。但是，育儿经验对增强两种活动的贡献程度在男女之间是不同的。此外，尽管性腺切除术在男性中的作用更为明显，但它在男女中都增强了这两种活动。总体而言，我们的发现表明，小鼠对幼小USV的反应性改变可能是社交经历或性腺激素引起的父母行为改变之一。

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