Some Histological Manifestations of a Tryptophan Deficiency in the Chick

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Abstract
Chicks fed a tryptophan-deficient purified diet exhibited certain abnormalities when examined histologically. These were an enlargement and erosion of the gall bladder, edematous swelling of the seminiferous tubules, degeneration of spleen cells and a decrease in the diam. of the muscle fibers.