Abstract
1.4 mg of cortisone acetate was injected for 5 days, or 5 mg was used for 7 days. Chondrogenesis in the proliferation areas in the long bones of the cockerel''s legs was inhibited in proportion to the amount of cortisone acetate injected. Cartilage growth was impaired to a considerable extent by the gluco-corticoid. Impairment of body weight increase was noted under the influence of the higher dose of cortisone acetate.