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

• Type: Article in International Scientific Journal
• Date: 2013

Authors

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

Journal

Title: Fish Physiology and Biochemistry

Vol. 39

Pages: 1485-1496

ISSN: 0920-1742

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 11 Citations

Scientific classification

FOS: Agrarian Sciences > Agriculture, Forestry, and Fisheries

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12