33041 - How Se and C affect Fish Health John Emil Halver...

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How Se and C affect Fish Health John Emil Halver School of Aquatic & Fishery Sciences University of Washington; Seattle, WA.
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C FUNCTIONS IN FISH HEALTH Hydroxylation of procollagen Hydroxylation of tryptophan Intracellular reducing agent Hydroxylation of steriods Erythrocyte maturation Rapid wound repair Serum iron binding Resistance to Vibrio Mixed function oxidases Enhanced phagocytic index Resistance to Edwardsiella Enhanced antibody production A-C-E-Se axis
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Ascorbate roles in metabolism PROLINE --> HYDROXYPROLINE TRYPTOPHAN --> SERATONIN TYROSINE --> NOREPINEPHRINE OSTEOBLASTS --> WOUND REPAIR VASO-HUMORAL --> BLOOD FLOW TOXICANTS -->MIXED Fn OXIDASES STEROIDS -->STEROLS Fe 3 + -->Fe 2 + Cu 2 + -->Cu 1 + Se 4 + --> Se 2 + CHOLESTEROL -> BILE ACIDS
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Proline to Hydroxyproline The amino acid proline is hydroxylated through the reducing action of ascorbic acid in the presence of ferrric ion to form hydroxyproline, which is polymerized to form the fiberous structure of tissue membranes.
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Tryptophan to Seratonin Ascorbic acid provides the reducing agent to convert tryptophan to the hormone seratonin.
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Tyrosine to Norepinephrine Ascorbic acid also provides the reducing factor to convert tyrosine to the hormone norepinephrine.
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33041 - How Se and C affect Fish Health John Emil Halver...

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