FN Archimer Export Format
PT J
TI Do protein hydrolysates improve survival and growth of newly-hatched spotted, wolffish (Anarhichas minor), a non-metamorphic aquaculture fish species?
BT 
AF SAVOIE, A
   LE FRANCOIS, Nathalie
   CAHU, Chantal
   BLIER, P
   ANDREASSEN, I
AS 1:1;2:1,2;3:3;4:2;5:4;
FF 1:;2:;3:PDG-DOP-DCB-PFOM;4:;5:;
C1 Univ Quebec Rimouski, MAPAQ, Ctr Aquacole Marin, Grande Riviere, PQ G0C 1V0, Canada.
   Univ Quebec, Dept Biol & Sci Sante, Rimouski, PQ G5L 3A1, Canada.
   IFREMER, Unite Mixte, INRA, F-29280 Plouzane, France.
   Troms Steinbit, Vangsvik, Norway.
C2 UNIV QUEBEC, CANADA
   UNIV QUEBEC, CANADA
   IFREMER, FRANCE
   TROMS STEINBIT, NORWAY
SI BREST
SE PDG-DOP-DCB-PFOM
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
IF 2.081
TC 21
UR https://archimer.ifremer.fr/doc/2006/publication-2141.pdf
LA English
DT Article
DE ;Survival;Growth;First feeding;Protein hydrolysates;Spotted wolffish;Anarhichas minor
AB 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 and 33.2% respectively. No significant effects of PH were observed on growth or survival at any time during the experiment. However, as a general trend, fish survival was always higher when the diet contained 20% PH. We suggest that the degree of hydrolysis of the PH used may have been insufficient to induce specific digestive enzyme stimulation for promoting larval growth. Moreover, precocious ontogeny of the digestive system may have precluded any significant effect of using dietary protein hydrolysates. Our results are discussed in comparison with metamorphic species which characteristically display incomplete development of the digestive system. (c) 2006 Elsevier B.V. All rights reserved.
PY 2006
PD NOV
SO Aquaculture
SN 0044-8486
PU Elsevier
VL 261
IS 2
UT 000242506400034
BP 782
EP 788
DI 10.1016/j.aquaculture.2006.08.047
ID 2141
ER

EF