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Titolo:
INFLUENCE OF DIETARY-LIPID COMPOSITION ON YOLK PROTEIN-COMPONENTS IN SEA BASS, DICENTRARCHUS-LABRAX
Autore:
CARNEVALI O; MOSCONI G; CENTONZE F; NAVAS JM; ZANUY S; CARRILLO M; BROMAGE NR;
Indirizzi:
UNIV CAMERINO,DEPT BIOL MCA,VIA CAMERINI 2 I-62032 CAMERINO MC ITALY CSIC,INST ACUICULTURA TORRE SAL CASTELLO DE PLANA SPAIN UNIV STIRLING,INST AQUACULTURE STIRLING FK9 4LA SCOTLAND
Titolo Testata:
Scientia marina
fascicolo: 4, volume: 62, anno: 1998,
pagine: 311 - 318
SICI:
0214-8358(1998)62:4<311:IODCOY>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAINBOW-TROUT; SEED PRODUCTION; SALMO-GAIRDNERI; EGG QUALITY; NUTRITIONAL COMPOSITION; BROODSTOCK DIETS; L VITELLOGENIN; OOCYTE GROWTH; HIGH CALORIE; REPRODUCTION;
Keywords:
FISH; VITELLOGENIN; LIPOVITELLIN; PHOSVITIN; FATTY ACIDS; YOLK COMPONENTS; DIET; EGG QUALITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
41
Recensione:
Indirizzi per estratti:
Citazione:
O. Carnevali et al., "INFLUENCE OF DIETARY-LIPID COMPOSITION ON YOLK PROTEIN-COMPONENTS IN SEA BASS, DICENTRARCHUS-LABRAX", Scientia marina, 62(4), 1998, pp. 311-318

Abstract

The influence of diet on yolk protein composition and egg survival was studied using the sea bass, Dicentrarchus labrax, as an experimentalmodel. Females were fed to satiation with a high essential fatty acid(EFA) diet during four different periods in the annual cycle: from September to February (vitellogenesis, Group A), from February to April (spawning, Group B), from April to September (postvitellogenesis, Group C) and all the year round (Group D). During the remaining months groups were fed with a low EFA diet. The percentage of egg viability and the hatching rates were observed in every group. The two major yolk proteins, lipovitellin (LV) and phosvitin (PV), were isolated from the ovary and their changes were studied by SDS-gel electrophoresis. In fish fed the diet enriched with EFA only for two months (group B) a decrease was observed of the 8 kDa PV components associated with a diminished egg viability and hatching. However, no modification of vitellogenin (VTG) plasma levels and no improvement in fish growth were observed under the dietary conditions used.

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Documento generato il 11/07/20 alle ore 21:02:15