Group housing during adolescence has long-term effects on the adult stress response in female, but not male, zebra finches (Taeniopygia guttata).
Group housing during adolescence has long-term effects on the adult stress response in female, but not male, zebra finches (Taeniopygia guttata).
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青春期的群体饲养对雌性斑胸草雀（Taeniopygia guttata）的成年应激反应有长期影响，但对雄性斑胸草雀没有影响。
DOI：
10.1016/j.ygcen.2017.07.008
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发表时间：
2018-01-15
影响因子：
2.7
通讯作者：
Spencer KA
中科院分区：
文献类型：
--
作者：
Emmerson MG;Spencer KA
青少年群体的大小，而不是密度，影响成人皮质酮分泌。一个更大的群体规模的结果在约束期间较高的皮质酮分泌。青少年群体规模对皮质酮的影响仅见于女性。青少年的社会交往会对晚年对压力源的生理反应产生长期影响。一个较大的青少年群体的大小可以导致更高的压力诱导的糖皮质激素分泌在成年期。这种效应可能是由于社会介导的性腺激素调节，例如睾酮。然而，群体大小（动物数量）与社会密度（每只动物的空间）混为一谈。因此，很难确定青少年群体规模影响应激反应的机制。目前的研究旨在梳理青春期群体规模和社会密度对成年期生理应激反应和性腺激素水平的影响。青少年斑胸草雀被安置在不同的大小（2与5鸟每笼）和密度（0.03立方米与0.06立方米每鸟）在青春期早期（第40-60天）组。密度只在五只一组的鸟类中进行控制。在青春期（第55 ± 1天）和成年期（第100+天），对标准捕获和束缚应激源分泌的糖皮质激素浓度进行定量。基础性腺激素浓度（男性睾酮，女性雌二醇）在成年期也进行了量化。雌鸟住在较大的群体，独立的社会密度，分泌更高的糖皮质激素浓度45分钟到约束，无论年龄，并有较高的峰值糖皮质激素浓度在成年期。成年性腺激素浓度不受组的大小或密度。我们的研究结果表明，组的大小，而不是密度，是一种社会条件，影响发展的内分泌反应的压力在雌性斑胸草雀，这些影响持续到成年。这些发现与圈养动物最佳福利所需的社会住房条件有明显的相关性，但也阐明了社会养育条件在对可能持续整个生命周期并影响野生种群动物健康的压力源的反应中的作用。
Adolescent group size, not density, influences adult corticosterone secretion. A larger group size results in higher corticosterone secretion during restraint. The adolescent group size effects on corticosterone were only found in females. Adolescent social interactions can have long-term effects on physiological responses to stressors in later-life. A larger adolescent group size can result in higher stressor-induced secretion of glucocorticoids in adulthood. The effect may be due to a socially-mediated modulation of gonadal hormones, e.g. testosterone. However, group size (number of animals) has been conflated with social density (space per animal). Therefore it is hard to determine the mechanisms through which adolescent group size can affect the stress response. The current study aimed to tease apart the effects of group size and social density during adolescence on the physiological stress response and gonadal hormone levels in adulthood. Adolescent zebra finches were housed in groups varying in size (2 vs. 5 birds per cage) and density (0.03 m3 vs. 0.06 m3 per bird) during early adolescence (day 40–60). Density was only manipulated in birds raised in groups of five. Glucocorticoid concentration secreted in response to a standard capture and restraint stressor was quantified in adolescence (day 55 ± 1) and adulthood (day 100+). Basal gonadal hormone concentrations (male testosterone, female estradiol) were also quantified in adulthood. Female birds housed in larger groups, independent of social density, secreted a higher glucocorticoid concentration 45 min into restraint regardless of age, and had higher peak glucocorticoid concentration in adulthood. Adult gonadal hormone concentrations were not affected by group size or density. Our results suggest that group size, not density, is a social condition that influences the development of the endocrine response to stressors in female zebra finches, and that these effects persist into adulthood. The findings have clear relevance to the social housing conditions necessary for optimal welfare in captive animals, but also elucidate the role of social rearing conditions in the emergence of responses to stressors that may persist across the lifespan and affect fitness of animals in wild populations.
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稳定的行为抑制和糖皮质激素的产生作为寿命的预测指标。
影响因子：
2.9
作者：
Cavigelli SA;Ragan CM;Michael KC;Kovacsics CE;Bruscke AP
通讯作者：
Bruscke AP
影响因子：
3.5
作者：
Emmerson MG;Spencer KA
通讯作者：
Spencer KA
影响因子：
4
作者：
Foilb, Allison R.;Lui, Patina;Romeo, Russell D.
通讯作者：
Romeo, Russell D.
DOI：
10.1053/beem.2001.0176
发表时间：
2002-03-01
影响因子：
7.4
作者：
Delemarre-van de Waal, HA
通讯作者：
Delemarre-van de Waal, HA
影响因子：
3.5
作者：
Ardia, Daniel R.;Broughton, Deanna R.;Gleicher, Michael J.
通讯作者：
Gleicher, Michael J.