The addition of salmon flesh and salmon viscera to a diet for chinook salmon fingerlings produced growth equal to that resulting from all-meat diets. The cost of production was reduced considerably. Salmon flesh did not prevent the appearance of an anemic condition and therefore is considered deficient in the anti-anemia factor. Some evidence obtained indicated that salmon flesh might have a destructive influence upon the anti-anemia factor present in other foods. This effect may be similar to that exhibited by other frozen fish upon vitamin B1. Salmon viscera in the diet prevented anemia in some instances and is presumed, therefore, to contain some anti-anemia factor. However, it cannot be fed as a sole diet over long periods at the Leavenworth, Washington, Station.