Social experience, behavior, and stress in guinea pigs
Social experience, behavior, and stress in guinea pigs
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豚鼠的社会经历、行为和压力
DOI：
10.1016/0031-9384(91)90502-f
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发表时间：
1991
影响因子：
2.9
通讯作者：
C. Lick
中科院分区：
文献类型：
--
作者：
N. Sachser;C. Lick
本研究考察了不同饲养和测试条件对豚鼠攻击性、求偶行为、内分泌反应和体重的影响。对7 - 8个月大的雄性被放置在2平方米的围栏中进行6-50天的慢性对抗。记录社会行为，观察时间共882 h。在慢性偶遇发生前20小时、发生后4小时、52小时和124小时，分别测定每位男性的体重以及血浆糖皮质激素、睾酮和去甲肾上腺素滴度。三个实验:在试验我,7对男性,每个男性提出单独与一女(农场),面临的是一个陌生的女人,在实验二世,6双纳面对没有女性,在实验3,7双的男性在不同的大殖民地面临一个陌生的女性的存在。在实验二和实验三中，低水平的攻击行为，没有明显的内分泌变化和身体损伤的迹象，而在实验一中，高水平的攻击和求爱行为，糖皮质激素滴度急剧增加，体重明显下降。然而，输家受到的影响要比赢家大得多。这些发现表明，在豚鼠中，社会养育条件、成年行为和长期遭遇的社会压力程度之间存在因果关系。
This study examined the effect of varying rearing and testing conditions on guinea pig aggression, courting behavior, endocrine responses and body weight. Pairs of 7–8-month-old males were placed in chronic confrontations for 6–50 days in 2 m2enclosures. Social behavior was recorded with a total of 882 h observation time. Body weight as well as plasma glucocorticoid, testosterone and norepinephrine titers were determined for each male 20 h before, and 4, 52 and 124 h after, the onset of the chronic encounters. Three experiments were conducted: in Experiment I, 7 pairs of males, each male raised singly with one female (FRM), were confronted in the presence of an unfamiliar female, in Experiment II, 6 pairs of FRM were confronted with no female present, and in Experiment III, 7 pairs of males which were raised in different large colonies were confronted in the presence of an unfamiliar female. In Experiment II and III low levels of aggression, no distinct endocrine changes and no indications of physical injury occurred in winners or losers, whereas in Experiment I high levels of aggression and courting behavior, extreme increases in glucocorticoid titers and distinct decreases in body weights were found in both males. Losers, however, were affected to a much greater extent than winners. These findings suggest that in guinea pigs a causal relationship exists between social rearing conditions, behavior as adults and degree of social stress in chronic encounters.