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The Riboflavin and Pantothenic Acid Requirement of Brook Trout
Author(s) -
Phillips Arthur M.,
Tunison A. V.
Publication year - 1947
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1944)74[81:trapar]2.0.co;2
Subject(s) - pantothenic acid , riboflavin , trout , rainbow trout , biology , zoology , fish <actinopterygii> , vitamin , food science , chemistry , fishery , biochemistry
Experiments were conducted to determine the riboflavin and pantothenic acid requirement of brook trout. Groups of trout were fed diets containing different levels of the vitamins and after a period the fish were killed and their livers analyzed micro‐biologically to determine the amount of storage of the vitamins. It was found that up to a maximum, the amount of storage increased with the level of the vitamins in the diet. When a maximum level was reached in the liver additional amounts in the diet did not increase the liver content. It has been tentatively concluded that brook trout require between 0.36 and 0.53 milligrams of riboflavin per kilogram of body weight daily and between 1.11 and 1.45 milligrams of pantothenic acid. Anemic fish contained low levels of both these vitamins, supporting the conclusion of Tunison et al. (1943) that they play a role in trout anemia. A deficiency of pantothenic acid resulted in a gill disease, confirming the results of Wolf (1943), but it is thought that it is the western type described by Fish (1935) as no bacteria were found.