Abstract

A disease in broiler chickens characterized by excreting indigested food and stunting beginning about 14 days of age was found on three broiler farms in Miyazaki Prefecture. At necropsy, the pancreas was pale and atrophic, and the cecum dilated. The intestinal contents had many starch crystals. They were positive for the starch-iodine reaction. Histologically, the pancreas showed severe atrophy of the acinus, interstitial fibrosis, and formation of several ectopic lymphoid foci. Zymogen granules disappeared and vacuolar degeneration was seen in the acinar cells. The severer pancreatic lesions, the more intense stunting andthe smaller the quantity of a-tocopherol. The correlation was very high among them. It seemed that the main cause of stunting might be indigestion due to pancreatic disturbanc

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