Studies on the Fat Metabolism of Fish-I:Contents of Fat and Phosphorus during the Growth of Rainbow Trout

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Phosphorus is supposed to play an important role in fat metabolism as well as in carbohydrate metabolism. In this experiment, the behaviors of the phosphorus and fat contents of rainbow trout, Salmo irideus, during its growth were observed. Fat content was reduced during the development from fertilization to hatching and began to increase after 2 months feeding. The following samples showed a maximum content of phosphorus in each type: (1) 1 month fed fry-insoluble and ether soluble phosphorus, (2) 3 month fed fry-water soluble phosphorus. Total phosphorus reached its maximum content in 1 month fed fry. It is considered that the most parts of phosphorus, in the early stage of growth, are utilized for construction of tissues and movement of fish.
社団法人日本水産学会の論文