The present invention prepared a non-human animal in which Fgf18 gene was knocked out in a keratin-5 positive cell-specific manner using a Cre-loxP system it provides a non-human model animal in which FGF18 expression has been inhibited in a hair follicle-specific manner to shorten the telogen phase of hair growth cycle. The non-human model animal is useful in studying hair follicles and skin, particularly hair growth occurring cyclically in hair follicle cells, and is applicable to the development of and screening for novel drugs against hair follicle or skin disorders.
