Schellinck H M, West A M, Brown R E
Department of Psychology, Dalhousie University, Halifax, Nova Scotia, Canada.
Physiol Behav. 1992 May;51(5):1079-82. doi: 10.1016/0031-9384(92)90096-k.
Male Long-Evans hooded rats were tested in a habituation-dishabituation procedure for their ability to discriminate between the urine odors of male C57BL/6J mice maintained on two different diets. There were discriminable differences between the urinary odors of two individual mice maintained on different diets. The rats did not dishabituate when presented with urine odors from two individuals on the same diet or two odor samples from the same individual. These results indicate that individual urinary odors of genetically identical mice are influenced by diet. We discuss the hypothesis that diet may act together with genetic differences, commensal bacteria, and hormonal changes to convey olfactory information used for individual recognition.
雄性长 Evans 戴帽大鼠接受了一种习惯化 - 去习惯化程序测试，以检验它们区分两种不同饮食饲养的雄性 C57BL/6J 小鼠尿液气味的能力。以不同饮食饲养的两只小鼠的尿液气味之间存在可辨别的差异。当给大鼠呈现来自同一饮食的两只小鼠的尿液气味或来自同一只小鼠的两个气味样本时，它们不会去习惯化。这些结果表明，基因相同的小鼠的个体尿液气味会受到饮食的影响。我们讨论了这样一种假说，即饮食可能与基因差异、共生细菌和激素变化共同作用，以传递用于个体识别的嗅觉信息。
