|
|
|
|
|
| Savoie, A; Le Francois, Nathalie; Cahu, Chantal; Blier, P; Andreassen, I. |
| Despite larval robustness characterized by the absence of metamorphosis and readiness for exogenous feeding based on commercial feed, the spotted wolffish (Anarhichas minor) displays highly variable survival at first-feeding. In this study, we investigated the use of three dietary concentrations of protein hydrolysates (PH, pre-digested proteins) (0, 10 and 20%) when newly hatched juvenile wolffish were held at three different rearing temperatures namely, 5, 8 and 12 degrees C to determine whether digestion of protein was a limiting factor for fish growth and survival. Final weights for fish at 5, 8,and 12 degrees C at day 60 were respectively 0.35, 1.19 and 2.02 g. Mean specific growth rates were 1.97, 4.01 and 4.88%/day and survival rates were 49.8, 53.4... |
| Tipo: Text |
Palavras-chave: Survival; Growth; First feeding; Protein hydrolysates; Spotted wolffish; Anarhichas minor. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2141.pdf |
| |
|
|
| Savoie, A; Le Francois, N; Cahu, Chantal; Blier, P. |
| Three groups of newly hatched spotted wolffish (Anarhichas minor) were held at three different temperatures in order to determine relationships between metabolic, digestive and growth response in rapidly developing larvae. Growth rates were successfully modulated by temperature (5, 8 and 12 degrees C). Activity levels of trypsin and lactate dehydrogenase (LDH) were positively linked to specific growth rates at all temperatures. Trypsin showed a positive compensation (higher activity at lower temperature) whereas glycolytic enzymes (pyruvate kinase and Lactate dehydrogenase) and aspartate aminotransferase (AST) showed a negative compensation (lower activity at lower temperature). Citrate synthase was not affected by growth rate, indicating that the level of... |
| Tipo: Text |
Palavras-chave: Anarhichas minor; Temperature; Growth; Energy metabolism; Digestive capacities. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3810.pdf |
| |
|
| |
|
| |
|
|
|
