[Epitheliogenesis imperfecta in lambs].

In a herd of 23 ewes of the White Alp breed, a congenital epitheliogenesis imperfecta was observed in five twin-births. All lambs originated from the same father. Except in one case, only one of the twins was affected. Characteristic lesions were epidermal defects between the coronary groove and the carpal/tarsal joint, exungulation, and defects in the buccal mucosa (cheeks, palatum durum, tongue). After removal of the ram from breeding, no more abnormalities were observed.