关键词:
年龄因素
动物
新生
觉醒
行为
动物
体重
阉割
习惯化
心理生理学
泌乳
母体胎儿间交换
运动活动
营养障碍/并发症
妊娠并发症
性别因素
社会行为
社会隔绝
动物
女(雌)性
男(雄)性
妊娠
大鼠
摘要:
The growth-retarded offspring of mother rats undernourished throughout pregnancy and lactation were fed ad libitum from weaning. Males were tested at 100 days of age, and ovariectomized females at 150 days. After 2 weeks of isolation, pairs of males consisting of 1 control (C) and 1 previously undernourished (PU) rat were observed for 10 min on each of 9 consecutive days. Similarly paired and treated female rats were tested a total of 8 times, the first 3 tests being separated from the last 5 by a 10-day interval. The PU rats, whether male or female, performed more rearing responses and PU male rats ambulated more in the social situation than C rats. The PU males also performed more of the social responses allogroom, walk over, and mount than C males. Similarly, PU females performed more allogroom and crawl under than C females. In general, PU rats were more active than C rats and more socially responsive.