Mills A D, Jones R B, Faure J M, Williams J B
Station de Recherches Avicoles, Institut National de la Recherche Agronomique, Nouzilly, France.
Physiol Behav. 1993 Jan;53(1):183-9. doi: 10.1016/0031-9384(93)90029-f.
The adrenocortical, behavioral, and leucocytic responses to isolation, for 1, 3, or 72 h, of 7-10-day-old Japanese quail chicks, of lines selected for high (HSR) or low (LSR) levels of social reinstatement (SR) behavior, were studied. Isolation had no effect on plasma corticosterone levels of heterophil/lymphocyte measures in LSR line chicks. Conversely, circulating corticosterone levels were increased after 1 h of isolation in the HSR line, although they fell to control levels thereafter. Heterophil/lymphocyte ratios of HSR line chicks were also increased after 3 h of isolation but decreased to control levels thereafter. Isolated HSR line chicks were consistently more active and showed more peeping and jumping than LSR line chicks in which sitting and lying were more frequent. However, no such behavioral divergence was observed when HSR and LSR line chicks were housed in same-line groups. These results indicate that selection for SR behavior has influenced both underlying social motivation and responses to short-term isolation. Social separation appeared to be more stressful for HSR than LSR line chicks.
研究了对具有高（HSR）或低（LSR）水平社会恢复（SR）行为的品系的7至10日龄日本鹌鹑雏鸡进行1、3或72小时隔离后，其肾上腺皮质、行为和白细胞的反应。隔离对LSR品系雏鸡的血浆皮质酮水平或嗜异性粒细胞/淋巴细胞指标没有影响。相反，HSR品系在隔离1小时后循环皮质酮水平升高，不过此后降至对照水平。HSR品系雏鸡的嗜异性粒细胞/淋巴细胞比率在隔离3小时后也升高，但此后降至对照水平。与更频繁坐着和躺着的LSR品系雏鸡相比，隔离的HSR品系雏鸡始终更活跃，表现出更多窥视和跳跃行为。然而，当HSR和LSR品系雏鸡饲养在同品系组中时，未观察到这种行为差异。这些结果表明，对SR行为的选择影响了潜在的社会动机和对短期隔离的反应。社会隔离对HSR品系雏鸡似乎比对LSR品系雏鸡压力更大。
