abnormal grooming behavior abnormal barbering behavior Dalila effect MP:0002808 MPheno.ontology This is a rodent specific behavior. Whisker trimming and barbering are either normal or abnormal depending on the mouse strain. Barbering is particularly common in C57BL/6 and A2G but nearly unseen in other strains. This term should always be used in relation to the control and strain should be specified. anomaly in the behavior of plucking of fur/hair or whiskers/vibrissae from other individuals of a cohort (hetero-barbering) or oneself (self-barbering); it is recognized as patches of unevenly chopped hair and the underlying skin is seldom inflamed hair biting hair pulling