LITTER GENDER COMPOSITION AFFECTS MATERNAL-BEHAVIOR OF THE PRIMIPAROUS MOUSE DAM (MUS-MUSCULUS)
LITTER GENDER COMPOSITION AFFECTS MATERNAL-BEHAVIOR OF THE PRIMIPAROUS MOUSE DAM (MUS-MUSCULUS)
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DOI：
10.1037/0735-7036.103.1.83
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发表时间：
1989-03-01
影响因子：
1.4
通讯作者：
LAVIOLA, G
中科院分区：
文献类型：
--
作者：
ALLEVA, E;CAPRIOLI, A;LAVIOLA, G
根据三种条件MM（所有雄性）、MF（3只雄性和3只雌性）或FF（所有雌性），将39窝远交Swiss CD-1小鼠品系在出生时减少至6只幼仔。在第2、3、5、7、10、14和18天的单次10 min期间，对各自母鼠的母体行为（哺乳、舔、筑巢和其他活动（如进食、饮水、嗅闻、梳理和非定向运动活动）的频率和持续时间）进行评分。饲养MM窝仔的母鼠在第2天和第18天（哺乳）、第2天、第7天和第10天（筑巢）以及第18天（舔食）表现出较高的母体护理评分。这些结果证实了之前的大鼠数据，该数据表明雄性和雌性幼崽在婴儿期早期暴露于不同的母性行为模式。伴随测量幼仔发育（体重增加和实现一些生理和神经行为的里程碑）表明，这些影响的窝性别组成不介导的总体变化的幼仔的成熟趋势。（PsycInfo数据库记录（c）2016阿帕，保留所有权利）
Thirty-nine litters of the outbred Swiss CD-1 mouse strain were reduced at birth to 6 pups, according to three conditions MM (all males), MF (3 males and 3 females), or FF (all females). The maternal behavior of their respective dams (frequency and duration of nursing, licking, nestbuilding, and other activities such as eating, drinking, sniffing, grooming, and undirected locomotor activity) were scored during a single 10-min session on Days 2, 3, 5, 7, 10, 14, and 18. Dams rearing MM litters showed higher scores of maternal care on Days 2 and 18 in the case of nursing, on Days 2, 7, and 10 in the case of nest-building, and on Day 18 in the case of licking. These results confirm previous rat data, which indicated that male and female pups are exposed early in infancy to a different pattern of maternal behavior. Concomitant measurements of pup development (body-weight gain and achievement of a number of physiological and neurobehavioral landmarks) indicated that these effects of litter gender composition are not mediated by gross changes in the maturational trends of the pups.(PsycINFO Database Record (c) 2016 APA, all rights reserved)