| 英文描述 | Several types of congenital hair loss were reported in cattle, including viable hypotrichosis, a recessive trait in Ayrshire, Guernsey, Jersey, Holstein, Hereford and Polled Hereford breeds; lethal hypotrichosis, a simple autosomal recessive in Holstein and Japanese cattle; hypotrichosis with incisor adontia in Maine-Anjou, Holstein, Normandy, and Friesian cross cattle (this appears to be six-linked and incompletely dominant); semihairlessness, a simple autosomal recessive in Polled and Horned Hereford cattle; streaked hairlessness in Holstein cattle. |