幼鼠在什么年龄开始不再对母性信息素产生反应？

At what age do rat young stop responding to the maternal pheromone?

作者信息

Lee T M, Moltz H

出版信息

Physiol Behav. 1985 Sep;35(3):355-9. doi: 10.1016/0031-9384(85)90308-7.

Abstract

We tested postweanling rat young to see if they would continue to respond to the maternal pheromone when pheromone-containing feces were made available in the home cage. We found that they do, and that the consumption of pheromone-containing feces is important for such sustained responsiveness. Nonetheless, interest in the pheromone does not continue past 50 days of age. The possible adaptive significance of the continuation and cessation of pheromonal responsiveness was discussed.

摘要

我们对断奶后的幼鼠进行了测试，以观察当含有信息素的粪便放置在饲养笼中时，它们是否会继续对母体信息素作出反应。我们发现它们确实会作出反应，并且食用含有信息素的粪便对于这种持续的反应能力很重要。尽管如此，对信息素的兴趣在50日龄之后就不再持续。文中还讨论了信息素反应性持续和停止的可能适应性意义。