Differences in placentophagia in relation to reproductive status in the California mouse (Peromyscus californicus).

Differences in placentophagia in relation to reproductive status in the California mouse (Peromyscus californicus).
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加州小鼠(Peromyscus californicus)的胎盘吞噬差异与生殖状态的关系。

DOI:
10.1002/dev.21154
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发表时间:
2014
影响因子:
2.2
通讯作者:
Saltzman,Wendy
Saltzman,Wendy
中科院分区:
心理学4区
文献类型:
--
作者:
Perea-Rodriguez,JuanP;Saltzman,Wendy

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在大多数哺乳动物物种中,临产的雌性会吞下胎盘,而在父母双方都照顾后代的物种中,父亲可能会这样做。为了确定吃胎盘的倾向是否随双亲加州小鼠的生殖状态而变化,我们将胎盘提供给未交配小鼠(与同性配对动物一起饲养)、待产小鼠(第一窝妊娠)和经产成年雄性和雌性小鼠。3-7天后,同样提供肝脏作为对照。经产女性比孕妇和处女女性更可能吃胎盘(p值<0.016),而经产和孕妇男性的胎盘吞噬发生率均高于处女(p值<0.016)。肝脏消耗量在两种性别之间没有差异。这些结果表明,吃胎盘的倾向增加与母亲/分娩经验的女性,和父亲的经验和/或同居与怀孕的女性男性。© 2013威利期刊公司。Dev Psychobiol 56:812-820,2014.
Parturient females ingest placenta in most mammalian species, whereas fathers may do so in species in which both parents provide care for their offspring. To determine if the propensity to eat placenta varies with reproductive status in the biparental California mouse, we presented placenta to virgin (housed with a same‐sex pairmate), expectant (pregnant with their first litter), and multiparous adult males and females. Liver was presented identically, 3–7 days later, as a control. Multiparous females were more likely to eat placenta than expectant and virgin females (p‐values <0.016), whereas both multiparous and expectant males had higher incidences of placentophagia than virgins (p‐values <0.016). Liver consumption did not differ among groups within either sex. These results suggest that propensity to eat placenta increases with maternal/birthing experience in females, and with paternal experience and/or cohabitation with a pregnant female in males. © 2013Wiley Periodicals, Inc. Dev Psychobiol 56: 812–820, 2014.
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