Lead poisoning in waterfowl.

proventriculus-gizzard contents. Most pellets were irregular in shape and in various stages of erosion, There was no apparent correlation between body weight and the amount of lead shot per bird. Liver discoloration was a remarkable gross finding. The entire liver parenchyma was uniformly colored dark green. Bile-colored viscous fluid oQzed from the cut surface of the liver, There was moderate-to-severe distention of the gall bladder. Biliary atresia was not seen in any of the birds. Histolegically, the main lesions were hemosidierosis in the liver and spleen, tubulonephrosis in the kidney, hypoplasia of the bone marrow with an increase in the number of polychromatic erythrob]asts, follicutar trophy and lymphoid depletion in the