Supplemental effects and metabolic fate of crystalline arginine in juvenile shrimp Marsupenaeus japonicus

Feeding experiments with juvenile kuruma shrimp ( Marsupenaeus japonicus) were conducted to understand the effects of supplemental levels of crystalline arginine hydrochloride on the growth and assimilation of arginine. In experiment 1 the juvenile shrimp were maintained on diets with and without ar...

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Bibliographic Details
Published in:Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 2004-02, Vol.137 (2), p.209-217
Main Authors: Teshima, Shin-ichi, Ishikawa, Manabu, Shah Alam, Md, Koshio, Shunsuke, Raafat Michael, Fady
Format: Article
Language:English
Subjects:
Animal Nutritional Physiological Phenomena
Animals
Arginine
Arginine - metabolism
Body Composition - physiology
Crystalline amino acid
Diet
Feeding experiment
Juveniles
Marsupenaeus japonicus
Penaeidae - growth & development
Penaeidae - metabolism
Radioactive
Shrimp
Supplement
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Summary:Feeding experiments with juvenile kuruma shrimp ( Marsupenaeus japonicus) were conducted to understand the effects of supplemental levels of crystalline arginine hydrochloride on the growth and assimilation of arginine. In experiment 1 the juvenile shrimp were maintained on diets with and without arginine supplements. The addition of 3.0% arginine to a casein-based diet was slightly effective in improving the growth of the juveniles. In experiment 2, tracer experiments using [ 14C] arginine were conducted to clarify the ingestion and assimilation of arginine, 9 and 24 h after feeding, at different levels of supplemental arginine. Tracer experiments showed that the leaching rate of arginine 1 h after feeding ranged from 16 to 26% in the diets with different levels (0, 0.1, 1.5, 3.0 and 6.0%) of supplemental arginine; that is, 74–84% of the given arginine was actually ingested by the shrimp fed the diets. However, with increasing levels of supplemental arginine the incorporation rate of arginine into the whole body decreased and the utilization of absorbed arginine for body protein synthesis was reduced, whereas the excretion of absorbed arginine was increased. Thus, the absorbed arginine was not effectively utilized for body protein synthesis when large amounts of arginine were supplemented to the diets.
ISSN:1096-4959
1879-1107
DOI:10.1016/j.cbpc.2003.11.005