Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish meal
Some studies carried out in mammalian models have shown de novo synthesis and salvage of nucleotides to be a costly metabolic process and a dietary supplementation with nucleic acids (NA) or nucleotides has been suggested to result in a protein sparing action (Sanderson and He, 1994). On the other h...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2010-01-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/889 |
| _version_ | 1818853294219460608 |
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| author | S. Kaushik E. Tibaldi C. Franchin F. Tulli |
| author_facet | S. Kaushik E. Tibaldi C. Franchin F. Tulli |
| author_sort | S. Kaushik |
| collection | DOAJ |
| description | Some studies carried out in mammalian models have shown de novo synthesis and salvage of nucleotides to be a costly metabolic process and a dietary supplementation with nucleic acids (NA) or nucleotides has been suggested to result in a protein sparing action (Sanderson and He, 1994). On the other hand, high levels of dietary NA could have toxic effects and lead to disturbance in protein, lipid and carbohydrate metabolism in monogastric animals lacking uricase activity, an enzyme involved in NA degradation (Clifford and Story, 1976). So far, there is no clear indication of such effects in fish fed nucleic acid-enriched diets (Tacon and Cooke, 1980; Rumsey et al., 1992; Fournier et al., 2002). The aim of this experiment was to investigate growth response and N metabolism in juvenile sea bass (D. labrax) fed diets supplying graded levels of nucleic acid N from dry brewer's yeast or RNA extract as partial substitutes for protein nitrogen provided by fish meal. |
| first_indexed | 2024-12-19T07:34:31Z |
| format | Article |
| id | doaj.art-58ba872371f24fa387fd6f15d9e57153 |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-19T07:34:31Z |
| publishDate | 2010-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-58ba872371f24fa387fd6f15d9e571532022-12-21T20:30:37ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2010-01-0142s60060210.4081/ijas.2005.2s.600Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish mealS. KaushikE. TibaldiC. FranchinF. TulliSome studies carried out in mammalian models have shown de novo synthesis and salvage of nucleotides to be a costly metabolic process and a dietary supplementation with nucleic acids (NA) or nucleotides has been suggested to result in a protein sparing action (Sanderson and He, 1994). On the other hand, high levels of dietary NA could have toxic effects and lead to disturbance in protein, lipid and carbohydrate metabolism in monogastric animals lacking uricase activity, an enzyme involved in NA degradation (Clifford and Story, 1976). So far, there is no clear indication of such effects in fish fed nucleic acid-enriched diets (Tacon and Cooke, 1980; Rumsey et al., 1992; Fournier et al., 2002). The aim of this experiment was to investigate growth response and N metabolism in juvenile sea bass (D. labrax) fed diets supplying graded levels of nucleic acid N from dry brewer's yeast or RNA extract as partial substitutes for protein nitrogen provided by fish meal.http://www.aspajournal.it/index.php/ijas/article/view/889growth, nitrogen excretion, nucleic acids, sea bass |
| spellingShingle | S. Kaushik E. Tibaldi C. Franchin F. Tulli Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish meal Italian Journal of Animal Science growth, nitrogen excretion, nucleic acids, sea bass |
| title | Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish meal |
| title_full | Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish meal |
| title_fullStr | Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish meal |
| title_full_unstemmed | Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish meal |
| title_short | Growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or RNA extract as partial substitute for protein nitrogen from fish meal |
| title_sort | growth and nitrogen metabolism of sea bass fed graded levels of nucleic acid nitrogen from yeast or rna extract as partial substitute for protein nitrogen from fish meal |
| topic | growth, nitrogen excretion, nucleic acids, sea bass |
| url | http://www.aspajournal.it/index.php/ijas/article/view/889 |
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