| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Regulation of feed intake, growth, nutrient and energy utilisation in European sea bass (Dicentrarchus labrax) fed high fat diets
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| Autores: |
Boujard, Thierry
Gelineau, Anne
Coves, Denis
Corraze, Genevieve
Dutto, Gilbert
Gasset, Eric
Kaushik, Sadasivam
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| Data: |
2004-03
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| Ano: |
2004
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| Palavras-chave: |
Phosphorus excretion
Feed intake
Lipid
Digestible energy
European sea bass
Dicentrarchus labrax
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| Resumo: |
Three practical isoproteic (54% protein) diets were formulated to contain graded levels of crude fat (diet L: 10%, diet M: 20% and diet H: 30%). Each diet was assigned unrestrictedly to three and restrictedly to two replicate groups of fish (IBW 243 g). In unrestricted groups, increasing the dietary lipid level led to a significant decrease in voluntary feed intake without affecting growth rate. In the feed-restricted groups, daily growth rates increased with increasing dietary fat levels. There was a significant and inverse effect of the dietary fat content on whole body moisture and fat levels, with highest lipid (ca. 20%) and lowest moisture (ca. 58%) contents in sea bass fed diet containing the highest lipid level; muscle lipid concentration was however not affected. Nitrogen retention was significantly increased by an increase in lipid concentration in the diets, with better efficiencies observed in unrestricted (ca. 31%) than in restricted groups (ca. 27%). Nitrogen loss was significantly affected by both the feeding level and the diet composition, with lowest values (ca. 60 g kg(-1)) in groups fed diet H unrestrictedly and highest values (ca. 90 g kg(-1)) in groups fed diet L at a restricted level. Soluble phosphorus excretion in H groups was less than half that in L groups, regardless of the feeding level.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/2004/publication-392.pdf
DOI:10.1016/j.aquaculture.2003.11.010
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| Editor: |
Elsevier
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| Relação: |
http://archimer.ifremer.fr/doc/00000/392/
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| Formato: |
application/pdf
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| Fonte: |
Aquaculture (0044-8486) (Elsevier), 2004-03 , Vol. 231 , N. 1-4 , P. 529-545
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| Direitos: |
2004 Elsevier B.V. All rights reserved
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