FN Archimer Export Format
PT J
TI Effect of long-term feeding with a plant protein mixture based diet on growth and body/fillet quality traits of large rainbow trout (Oncorhynchus mykiss)
BT 
AF DE FRANCESCO, Matilde
   PARISI, Giuliana
   MEDALE, Francoise
   LUPI, Paola
   KAUSHIK, Sadasivam
   POLI, Bianca
AS 1:;2:;3:;4:;5:;6:;
FF 1:;2:;3:;4:;5:;6:;
C1 Univ Florence, Dipartimento Sci Zootecn, I-50144 Florence, Italy.
   INRA, IFREMER, Fish Nutr Lab, Unite Mixte,Lab Nutr Poissons,Stn Hydrobiol, F-64310 St Pee Sur Nivelle, France.
C2 UNIV FLORENCE, ITALY
   INRA, FRANCE
SI ST PEE SUR NIVELLE
SE PDG-DRV-RA-ARN
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 1.627
TC 152
UR https://archimer.ifremer.fr/doc/2004/publication-391.pdf
LA English
DT Article
DE ;Sensory evaluation;Chemical composition quality;Flesh;Body traits;Plant protein;Oncorhynchus mykiss
AB Two diets based oil fish meal (FM) or oil a mixture of plant protein sources supplemented with free amino acids (PP) were fed to rainbow trout having a mean initial body weight of 162.5 g reared at 17 +/- 1 degreesC for 24 weeks to evaluate the effect of plant protein sources oil fish growth, morphological and body quality traits. At the end of the growth study, samples were withdrawn for chemical analyses as well as measurements of different parameters of quality.   Compared to the FM group, the trout fed diet PP had lower growth rates (mean final body weight 663 vs. 800 g), feed efficiency (0.95 vs. 1.07) and protein efficiency ratio (1.96 vs. 2.13). Trout fed diet PP were also characterised by a lower dressed weight (89.45% vs. 91.07%), hepato-somatic index (0.92% vs. 1.01%) and fillet lipid content (5.50% vs. 6.98%), but had a higher mesenteric fat (5.65% vs. 4.08%), viscero-somatic index (10.55% vs. 8.93%) and fillet crude protein content (20.53% vs. 19.93%). The muscle fatty acid composition reflected that of the diet with a higher level of polyunsaturated (n-6) fatty acids in trout fed diet PP and a higher content in polyunsaturated n-3 fatty acids and n-3/n-6 ratio in trout fed diet FM. Sensory analysis was carried out at 5 days post-mortem on microwave-cooked dorsal portions of fillets stored at 1 degreesC with ice covering. The results of the triangular test showed differences between groups (P<0.01) in organoleptic characteristics as well as in visual colour. Descriptive tests pointed out that fillets of trout fed diet PP exhibited higher hardness, less sweetness and less odour intensity than trout fed diet FM.   In summary, data show that long-term feeding a diet in which fish meal was totally replaced by a mixture of plant protein sources significantly affects growth and quality criteria such as morphometric traits, fat deposits, fillet chemical composition and organoleptic characteristics of large commercial size rainbow trout. 
PY 2004
PD JUL
SO Aquaculture
SN 0044-8486
PU Elsevier
VL 236
IS 1-4
UT 000221946500033
BP 413
EP 429
DI 10.1016/j.aquaculture.2004.01.006
ID 391
ER

EF