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Study on the quantity and quality of vitamin A in shark liver oils found in markets



Study on the quantity and quality of vitamin A in shark liver oils found in markets



Bol Indust Animal 8(1/2): 55-62



The vit. A content of shark liver oils found on Santos market was estimated (Pulfrich) from March 1943 to Feb. 1944. High potency oils could not be selected on examination of livers. Fishing operations must be directed toward shark sp. of known high potency of liver oil; oils obtained to date are of relatively low potency because of unsystematic fishing.

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