Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles diets
The aim of this study was the evaluation of microalga Isochrysis sp. T-Iso in partial substitution of fish meal and the study of the effects on gilthead sea bream (Sparus aurata) perform- ances and chemical composition of fillets. The results show that the microalga T-Iso nutrients support growth be...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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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/595 |
| _version_ | 1818180677804228608 |
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| author | Ivo Zoccarato Pasquale Trotta Maria Teresa Spedicato Giuseppe Lembo Laura Gasco Francesco Gai Giovanni Battista Palmegiano |
| author_facet | Ivo Zoccarato Pasquale Trotta Maria Teresa Spedicato Giuseppe Lembo Laura Gasco Francesco Gai Giovanni Battista Palmegiano |
| author_sort | Ivo Zoccarato |
| collection | DOAJ |
| description | The aim of this study was the evaluation of microalga Isochrysis sp. T-Iso in partial substitution of fish meal and the study of the effects on gilthead sea bream (Sparus aurata) perform- ances and chemical composition of fillets. The results show that the microalga T-Iso nutrients support growth better than control diets, and the chemical composition of sea bream fillets also meets the needs of consumers for healthy diets. T-Iso resulted highly digestible, and support the best perform- ances of fish fed on 70% alga diet probably due to its high protein efficiency in comparison to other diets. The presence of a high quantity of cyclic isoprenoid could explain this high efficiency of T-Iso. Gilthead sea bream fed on 70% T-Iso showed fillets with a low level of protein and a high level of fat; moreover, their somatic indexes were higher than those of fish fed other diets. Highest percentage T- Iso diet showed the highest amount of the sum of saturated fatty acids, mainly due to myristate and palmitate. On the contrary, the sum of polyunsaturated decreases, mainly because of the reduction of EPA and DHA amounts. If the mass production economical problems are solved, T-Iso will represent a good solution in partial substitution of fish meal. |
| first_indexed | 2024-12-11T21:23:34Z |
| format | Article |
| id | doaj.art-587d3e09e4ef425f96e035bc29ff6bce |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-11T21:23:34Z |
| publishDate | 2010-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-587d3e09e4ef425f96e035bc29ff6bce2022-12-22T00:50:24ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2010-01-0182s86987110.4081/ijas.2009.s2.869Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles dietsIvo ZoccaratoPasquale TrottaMaria Teresa SpedicatoGiuseppe LemboLaura GascoFrancesco GaiGiovanni Battista PalmegianoThe aim of this study was the evaluation of microalga Isochrysis sp. T-Iso in partial substitution of fish meal and the study of the effects on gilthead sea bream (Sparus aurata) perform- ances and chemical composition of fillets. The results show that the microalga T-Iso nutrients support growth better than control diets, and the chemical composition of sea bream fillets also meets the needs of consumers for healthy diets. T-Iso resulted highly digestible, and support the best perform- ances of fish fed on 70% alga diet probably due to its high protein efficiency in comparison to other diets. The presence of a high quantity of cyclic isoprenoid could explain this high efficiency of T-Iso. Gilthead sea bream fed on 70% T-Iso showed fillets with a low level of protein and a high level of fat; moreover, their somatic indexes were higher than those of fish fed other diets. Highest percentage T- Iso diet showed the highest amount of the sum of saturated fatty acids, mainly due to myristate and palmitate. On the contrary, the sum of polyunsaturated decreases, mainly because of the reduction of EPA and DHA amounts. If the mass production economical problems are solved, T-Iso will represent a good solution in partial substitution of fish meal.http://www.aspajournal.it/index.php/ijas/article/view/595T-Iso, Sparus aurata, Fatty acid, Fillet composition |
| spellingShingle | Ivo Zoccarato Pasquale Trotta Maria Teresa Spedicato Giuseppe Lembo Laura Gasco Francesco Gai Giovanni Battista Palmegiano Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles diets Italian Journal of Animal Science T-Iso, Sparus aurata, Fatty acid, Fillet composition |
| title | Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles diets |
| title_full | Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles diets |
| title_fullStr | Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles diets |
| title_full_unstemmed | Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles diets |
| title_short | Partial replacement of fish meal by T-Iso in gilthead sea bream (Sparus aurata) juveniles diets |
| title_sort | partial replacement of fish meal by t iso in gilthead sea bream sparus aurata juveniles diets |
| topic | T-Iso, Sparus aurata, Fatty acid, Fillet composition |
| url | http://www.aspajournal.it/index.php/ijas/article/view/595 |
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