PROBLEM TO BE SOLVED: To provide a new alopecia areata model non-human animal. SOLUTION: Alopecia areata model non-human animal in which the coiled-coil α-helical rod protein 1 (CCHCR1) gene is knocked out. [Selection diagram] None【課題】新たな円形脱毛症モデル非ヒト動物の提供。【解決手段】coiled-coil α-helical rod protein 1(CCHCR1)遺伝子がノックアウトされた円形脱毛症モデル非ヒト動物。【選択図】なし