Cervical hyperextension in a lamb with nutritional myo-degenerescence secondary to vitamin E deficiency.

摘要

A female 25 day old Lacaune lamb exhibited cervical hyper-extension, standing difficulty, tachypnoea and tachycardia although it was alert and has a normal appetite. Serum CK and LDH activities were markedly elevated whereas the blood selenium concentration was within the usual values and the serum vitamin E concentration was dramatically depressed. Histological examination showed the heart, thigh and vertebral muscles pale and cellular degenerescence. The white muscle disease was diagnosed and probably only resulted from a severe vitamin E deficiency.