Abstract
Vitiligo is an idiopathic acquired depigmentation, and there are no preceding or concurrent signs of cutaneous inflammation or injury (Scott, 1988). Vitiligo has been most commonly reported in the Holstein-Friesian breed (Meijer and van der Ejk, 1961 ; Meijer, 1965; Meijer, 1966) and it clinically resembles the disease in Arabian horses (Scott, 1988). Vitiligo has also been reported in Japanese black cattle, in conjunction with hyperthyroidism (Sako, 1983; Hayashi et al., 1989).