Rearing temperature affects Senegalese sole (Solea senegalensis) larvae protein metabolic capacity

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Catarina Campos (Autor) Outra; Filipa F Castanheira (Autor) Outra; Sofia Engrola (Autor) Outra; Luisa M P Valente (Autor) ICBAS; Jorge M O Fernandes (Autor) Outra; Luis E C Conceicao (Autor) Outra

Revista

Título: Fish Physiology and Biochemistry

Vol. 39

Páginas: 1485-1496

ISSN: 0920-1742

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 11 Citações

Classificação Científica

FOS: Ciências agrárias > Agricultura, silvicultura e pescas

Outras Informações

ID Authenticus: P-008-H7V

DOI: 10.1007/s10695-013-9802-x

Abstract (EN): The present work examined the short- and long-term effects of three rearing temperatures on protein metabolism and growth trajectories of Senegalese sole larvae using C-14-labelled Artemia protein as feed. A first feeding trial was performed on larvae reared at 15, 18 and 21 A degrees C (at 26, 17 and 14 days post-hatching (dph), respectively) and a second trial conducted on post-larvae after transfer to the same rearing temperature (similar to 20 A degrees C) (49, 35 and 27 dph, in larvae initially reared at 15, 18 and 21 A degrees C, respectively). Temperature greatly influenced larvae relative growth rate (RGR) and survival, since growth at 15 A degrees C was severely depressed. Protein digestibility and retention was highest at 18 A degrees C during the first trial (85.35 +/- A 1.16 and 86.34 +/- A 2.33 %, respectively). However, during the second trial, post-larvae from 15 A degrees C had the highest feed intake and protein digestibility (3.58 +/- A 1.54 and 75.50 +/- A 1.35 %, respectively), although retention was similar between treatments. Furthermore, after transfer to 20 A degrees C larvae from 15 A degrees C experienced compensatory growth, which was observed until 121 dph, and confirmed by RGR values, which were significantly higher at 15 A(0)C than at 21 A(0)C or 18 A(0)C. Results from the present study show that Solea senegalensis larval development, survival and protein digestion and retention are highly affected by thermal history.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12