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Published online by Cambridge University Press: 11 November 2009
Shark liver Oil new source of Vitamin A for Poultry. L. L. Rusoff and N. R. Mehrhof. Gainesville, Florida Poultry Tribune, September, 1938.
Several lots of chicks were used in the experiments. One lot was fed a basal ration deficient in vitamin A. Other lots were given rations rations containing varying amounts of shark liver oil. Another lot was given a ration containing a good grade of commercial cod liver oil concentrates having at least 3,000 units of vitamin A per gramme.