Rice Bran, a Preventive of Perosis (Deforming Leg Weakness) in Chickens

Abstract
Preliminary report of experiments showing that perosis in chickens is of dietary origin and may be partially prevented by adjusting the Ca: P ratio of the food to a more suitable value, and by adding 6-10% of rice bran to the diet. When both these changes are made simultaneously, it is possible to prevent the condition entirely. In view of the findings it seems necessary to postulate that, in addition to vitamin D, another accessory food factor, or vitamin, is necessary for proper development of the leg and possibly of the other bones of growing chickens.

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