Effects of various levels of dietary vitamin E on broiler chicks.

Graded dosages of vitamin E (37.5, 50 or 100 ppm) fed Lohmann-type broiler chicks resulted in decreased growth rates, enlarged livers and kidneys, hemorrhages on the medial surface of the thigh, and congestion in the heart and intestines. Serum SDH and GDH activities and uric acid concentrations were significantly increased and serum total protein concentration was decreased in all dosed groups. Leucocytosis and anemia occurred in excess vitamin E-fed broiler chicks.