Citronellal ingestion decreases the appeal of male mouse urinary pheromone for female mice.

To determine whether ingestion of citronellal decreases the attractive power of the male mouse urinary odor, female mice were used in preference tests. A series of tests revealed that the female mice preferred voided urine odors from aged mice over those from younger adult mice. However, exogenous citronellal directly inhibited the advantage of the aged males with regard to attraction.