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首页> 外文期刊>Biology Bulletin >Parental Care and Testosterone in Males of the Bank Vole (Myodes glareolus): Sensitization and Androgenic Stimulation of Paternal Behavior
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Parental Care and Testosterone in Males of the Bank Vole (Myodes glareolus): Sensitization and Androgenic Stimulation of Paternal Behavior

机译：银行田鼠（Myodes glareolus）男性的父母关怀和睾丸激素：父性行为的致敏和雄激素刺激。

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摘要

The relationship between parental responsiveness of bank vole males and their body weight, testes mass, and plasma and gonadal testosterone levels were examined. Two groups of voles were studied: Group Ⅰ consisted of 14 breeding pairs where females gave birth to young within a month after formation of pairs, and Group Ⅱ represented 13 pairs without offspring and signs of pregnancy in females. Males in Group Ⅰ, unlike those in Group Ⅱ, had contact with pups before the tests on parental responsiveness. In Group Ⅰ, males were found to have larger testes and to exhibit a higher level of care-giving activity (pup retrieval) as compared to males in Group Ⅱ. Both the plasma and gonadal testosterone levels in males exhibiting pup retrieval were revealed to be significantly higher than those for males exhibiting infanticide. Thus, promiscuity, competition for receptive females, and a higher level of testosterone secretion, which are characteristic of bank vole males during the breeding season, are not out of the realm of possibility of the males to care of young. Our findings suggest that factors promoting parental responsiveness in bank vole males are sensitization due to contact with pups and an increase in testosterone secretion. Obviously, there is a need to reexamine the role that testosterone plays in regulating rodent paternal behavior.
机译：检查了岸田鼠雄性的父母反应能力与他们的体重，睾丸质量以及血浆和性腺睾丸激素水平之间的关系。研究了两组田鼠：第一组由14对育种对组成，其中雌对在成对后一个月内就出生，而第二组代表13对没有雌性的后代和妊娠迹象。 Ⅰ组的雄性与Ⅱ组的雄性不同，在父母亲反应性测试前与幼犬接触。在第一组中，与第二组中的男性相比，发现男性具有更大的睾丸，并且表现出更高水平的照料活动（幼犬取回）。结果显示，表现出幼崽恢复的男性血浆和性腺睾丸激素水平均显着高于表现出杀婴行为的男性。因此，在繁殖季节，银行田鼠雄性的特征是滥交，对雌性雌性的竞争以及更高水平的睾丸激素分泌，并非不在雄性可能照顾年轻人的范围之内。我们的发现表明，促进银行田鼠雄性父母反应的因素是由于与幼犬接触和睾丸激素分泌增加而致敏。显然，有必要重新检查睾丸激素在调节啮齿动物父本行为中的作用。

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  • 来源
    《Biology Bulletin》 |2013年第1期|114-118|共5页
  • 作者

    V. S. Gromov; L. V. Osadchuk;

  • 作者单位

    Severtsov Institute of Ecology and Evolution, Leninskii pr. 33, Moscow, 119071 Russia;

    Institute of Cytology and Genetics, pr. Academika Lavrent'eva 10, Novosibirsk, 630090 Russia;

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