Osteodystrophia fibrosa was diagnosed in young goats which received a diet
of 60% wheat straw and 40% barley for 8 months. The ratio of calcium:phosph
orus in the diet was 1:1.8. The clinical signs were bilateral and symmetric
al enlargement of the face, swelling of the joints, and limb deformities. T
he laboratory findings showed a low level of serum calcium in all affected
goats. Histopathological examination revealed marked fibrous deposition and
osteoclasia in bones of the maxilla and mandible.