Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/4631
Título: Estimated amino acid requirements during early ontogeny in fish with different life styles: Gilthead seabream (Sparus aurata) and Senegalese sole (Solea senegalensis)
Autor: Aragão, C.
Conceição, L. E. C.
Fyhn, H. -J.
Teresa Dinis, M.
Palavras-chave: Amino acid composition
Sparus aurata
Solea senegalensis
A/E ratios
Ontogeny
Dietary deficiencies
Data: 2004
Editora: Elsevier
Citação: Aragão, C.; Conceição, L.E.C.; Fyhn, H.-J.; Teresa Dinis, M.Estimated amino acid requirements during early ontogeny in fish with different life styles: Gilthead seabream (Sparus aurata) and Senegalese sole (Solea senegalensis), Aquaculture, 242, 1-4, 589-605, 2004
Resumo: Little is known about the amino acid (AA) requirements of larval fish and their possible ontogenetic changes. This paper aims to contribute to the study of these requirements in two common cultured species in Southern Europe: gilthead seabream (Sparus aurata) and Senegalese sole (Solea senegalensis). Moreover, it is intended to identify possible dietary AA imbalances occurring in normal hatchery conditions for both species. Fish larvae were reared following standard procedures and the normal feeding schemes used in hatcheries, which includes the use of live prey for several weeks. The experiments were finished once the fish were adapted to a dry feed. Samples were collected at different points for dry weight, total protein, and AA analysis. The A/E ratios [each indispensable AA content (total indispensable AA content including cysteine and tyrosine)1 1000] of fish and food were compared to identify possible dietary AA imbalances. The AA profile of both fish species changed during ontogeny, but was more stable during seabream than Senegalese sole development. This is probably linked to the marked metamorphosis observed in sole. These changes in fish larval AA profile suggest that the AA requirements change during seabream and Senegalese sole ontogenesis. Several dietary AA deficiencies were found during the ontogenetic development of both species.
Peer review: yes
URI: http://hdl.handle.net/10400.1/4631
ISSN: 0044-8486
Aparece nas colecções:CCM2-Artigos (em revistas ou actas indexadas)



FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.