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Influence of dietary non-essential amino acid profile on growth performance and amino acid metabolism of Nile tilapia, Oreochromis niloticus (L.).

Abstract

The quality of dietary protein is an important factor influencing the growth performance of fish. To evaluate the quality of protein, the variables commonly studied are the composition of the essential amino acids, the digestibility and the protein use efficiency. The goal of the present experiment was to test the effect of the dietary non-essential amino acid composition on the growth of Nile tilapia (Oreochromis niloticus). The fish were fed three purified diets differing only in their non-essential amino acid composition. The influence of the experimental diets on the growth performance, on the activity of enzymes involved in the amino acid metabolism, aspartate aminotransferase (ASAT) and alanine aminotransferase (ALAT), and on whole body delta(15)N values was investigated. Body mass, lipid, protein and energy gain differed significantly between the feeding groups. The activity of ASAT in the whole liver was significantly higher in fish with a positive protein balance compared to fish which lost protein. Whole body delta(15)N values of fish were negatively correlated with their body mass gain. Despite the poor utilisation of synthetic amino acids, the experiment indicates the importance of the dietary non-essential amino acid composition for the growth performance of fish. The study reveals the possibility to trace the utilisation of synthetic amino acids by determining the isotopic composition of dietary amino acids and tissues or whole bodies of animals.

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  • Authors+Show Affiliations

    ,

    Department of Aquaculture Systems and Animal Nutrition in the Tropics and Subtropics, University of Hohenheim, Stuttgart, Germany.

    , ,

    Source

    MeSH

    Alanine Transaminase
    Amino Acids
    Amino Acids, Essential
    Animal Nutritional Physiological Phenomena
    Animals
    Aspartate Aminotransferases
    Cichlids
    Diet
    Liver
    Male

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    17157045

    Citation

    Gaye-Siessegger, J, et al. "Influence of Dietary Non-essential Amino Acid Profile On Growth Performance and Amino Acid Metabolism of Nile Tilapia, Oreochromis Niloticus (L.)." Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology, vol. 146, no. 1, 2007, pp. 71-7.
    Gaye-Siessegger J, Focken U, Abel H, et al. Influence of dietary non-essential amino acid profile on growth performance and amino acid metabolism of Nile tilapia, Oreochromis niloticus (L.). Comp Biochem Physiol, Part A Mol Integr Physiol. 2007;146(1):71-7.
    Gaye-Siessegger, J., Focken, U., Abel, H., & Becker, K. (2007). Influence of dietary non-essential amino acid profile on growth performance and amino acid metabolism of Nile tilapia, Oreochromis niloticus (L.). Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology, 146(1), pp. 71-7.
    Gaye-Siessegger J, et al. Influence of Dietary Non-essential Amino Acid Profile On Growth Performance and Amino Acid Metabolism of Nile Tilapia, Oreochromis Niloticus (L.). Comp Biochem Physiol, Part A Mol Integr Physiol. 2007;146(1):71-7. PubMed PMID: 17157045.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Influence of dietary non-essential amino acid profile on growth performance and amino acid metabolism of Nile tilapia, Oreochromis niloticus (L.). AU - Gaye-Siessegger,J, AU - Focken,U, AU - Abel,Hj, AU - Becker,K, Y1 - 2006/10/27/ PY - 2006/04/12/received PY - 2006/09/05/revised PY - 2006/09/05/accepted PY - 2006/12/13/pubmed PY - 2007/3/28/medline PY - 2006/12/13/entrez SP - 71 EP - 7 JF - Comparative biochemistry and physiology. Part A, Molecular & integrative physiology JO - Comp. Biochem. Physiol., Part A Mol. Integr. Physiol. VL - 146 IS - 1 N2 - The quality of dietary protein is an important factor influencing the growth performance of fish. To evaluate the quality of protein, the variables commonly studied are the composition of the essential amino acids, the digestibility and the protein use efficiency. The goal of the present experiment was to test the effect of the dietary non-essential amino acid composition on the growth of Nile tilapia (Oreochromis niloticus). The fish were fed three purified diets differing only in their non-essential amino acid composition. The influence of the experimental diets on the growth performance, on the activity of enzymes involved in the amino acid metabolism, aspartate aminotransferase (ASAT) and alanine aminotransferase (ALAT), and on whole body delta(15)N values was investigated. Body mass, lipid, protein and energy gain differed significantly between the feeding groups. The activity of ASAT in the whole liver was significantly higher in fish with a positive protein balance compared to fish which lost protein. Whole body delta(15)N values of fish were negatively correlated with their body mass gain. Despite the poor utilisation of synthetic amino acids, the experiment indicates the importance of the dietary non-essential amino acid composition for the growth performance of fish. The study reveals the possibility to trace the utilisation of synthetic amino acids by determining the isotopic composition of dietary amino acids and tissues or whole bodies of animals. SN - 1095-6433 UR - https://www.unboundmedicine.com/medline/citation/17157045/Influence_of_dietary_non_essential_amino_acid_profile_on_growth_performance_and_amino_acid_metabolism_of_Nile_tilapia_Oreochromis_niloticus__L___ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1095-6433(06)00449-1 DB - PRIME DP - Unbound Medicine ER -