Gallo P V, Werboff J, Knox K
Dev Psychobiol. 1984 Sep;17(5):437-49. doi: 10.1002/dev.420170502.
The development of home orientation was evaluated in 2-14-day-old kittens nursing from mothers fed a protein-restricted or control diet during late gestation and lactation. Although restricted kittens remained in the home when placed in it, their ability to return to the home was delayed when they were removed from it. Restricted kittens also exhibited aberrant locomotor development and an increased frequency of loss of balance (upsets) en route to the home. During postnatal Week 1, vocalization frequency, an index of kitten disturbance when outside the home, was increased in restricted kittens tested in the home, and in adjacent and diagonal corners. Restricted kittens persisted in vocalizing more frequently than controls in home and adjacent corner tests during Week 2. Taken together, these data suggest that maternal protein restriction during late gestation and lactation disrupts the development of home orientation behavior by impairing locomotor function and increasing emotional responsiveness.
对在妊娠后期和哺乳期喂食蛋白质限制饮食或对照饮食的母猫哺育的2至14日龄小猫的归巢定向发育进行了评估。尽管受限小猫被放置在巢中时会留在巢内，但当它们被带离巢时，返回巢的能力会延迟。受限小猫在返回巢的途中还表现出异常的运动发育和平衡丧失（跌倒）频率增加。在出生后的第1周，在家中、相邻角落和对角角落进行测试时，受限小猫的发声频率增加，发声频率是小猫在巢外时受到干扰的一个指标。在第2周的家中和相邻角落测试中，受限小猫的发声频率持续高于对照组。综上所述，这些数据表明，妊娠后期和哺乳期母体蛋白质限制会通过损害运动功能和增加情绪反应性来破坏归巢定向行为的发育。
