The impact of seasonal alteration in the lipid composition of broodstock diets on egg quality in the European sea bass

Groups of European sea bass Dicentrarchus labrax L., broodstock were fed two pelleted, lipid-enriched diets [maize oil, low essential fatty acid (EFA) or fish oil, high EFA]. Those fed the high EFA diet for 12 months or only during vitellogenesis (September to February) with the low EFA diet fed for the remaining 6 months, showed improved egg quality and higher hatching rates when compared to two groups fed the high EFA diet during either previtel-logenesis (February to September) or the spawning period (February to April). The higher quality eggs contained higher levels of total n-3 fatty acids, including increased levels of both docosahexaenoic acid (DHA) and eicosapaentaenoic acid (EPA). High levels of triacylglycerol (TAG) were linked with the poorer quality eggs from those groups fed the low EFA diet during the period of vitellogenesis. The present work identifies vitellogenesis as the period in the maturation during which EFA are incorporated most effectively into the developing oocytes.

[1]  J. G. Bell,et al.  Effects of broodstock dietary lipid on fatty acid compositions of eggs from sea bass (Dicentrarchus labrax) , 1997 .

[2]  J. G. Bell,et al.  Requirement criteria for essential fatty acids , 1995 .

[3]  M. Salhi,et al.  Effect of n − 3 HUFA level in broodstock diets on egg quality of gilthead sea bream (Sparus aurata L.) , 1995 .

[4]  J. Cerdà,et al.  Short- and long-term dietary effects on female sea bass (Dicentrarchus labrax): seasonal changes in plasma profiles of lipids and sex steroids in relation to reproduction , 1995 .

[5]  H. Yang,et al.  Comparative development and biochemical analyses of Trichogramma (Hymenoptera: Trichogrammatidae) grown in artificial media with hemolymph or devoid of insect components. , 1995 .

[6]  J. G. Bell,et al.  Origins and functions of n-3 polyunsaturated fatty acids in marine organisms. , 1995 .

[7]  J. G. Bell,et al.  Effects of purified diets containing different combinations of arachidonic and docosahexaenoic acid on survival, growth and fatty acid composition of juvenile turbot (Scophthalmus maximus) , 1994 .

[8]  G. Kissil,et al.  The kinetics of nutrient incorporation into body tissues of gilthead seabream (Sparus aurata) females and the subsequent effects on egg composition and egg quality , 1994, British Journal of Nutrition.

[9]  D. Sklan,et al.  The association of eicosapentaenoic and docosahexaenoic acids in the main phospholipids of different-age Sparus aurata larvae with growth , 1993 .

[10]  B. March.  Essential fatty acids in fish physiology. , 1993, Canadian journal of physiology and pharmacology.

[11]  Takeshi Watanabe.  Importance of Docosahexaenoic Acid in Marine Larval Fish , 1993 .

[12]  R. J. Shields,et al.  Lipid class and fatty acid composition of eggs of Atlantic halibut, Hippoglossus hippoglossus (L.), in relation to egg quality in captive broodstock , 1993 .

[13]  M. Thrush,et al.  Broodstock management, fecundity, egg quality and the timing of egg production in the rainbow trout (Oncorhynchus mykiss) , 1992 .

[14]  S. O. Hung,et al.  Dietary effects on tissue composition, oogenesis and the reproductive performance of female rainbow trout (Oncorhynchus mykiss). , 1990 .

[15]  S. Falk‐Petersen,et al.  Lipids in atlantic halibut (Hippoglossus hippoglossus) eggs from planktonic samples in Northern Norway , 1989 .

[16]  N. Bromage,et al.  The effect of modifications in photoperiod on spawning time, ovarian development and egg quality in the sea bass (Dicentrarchus labrax L.) , 1989 .

[17]  R. J. Henderson,et al.  The rapid analysis of neutral and polar marine lipids using double-development HPTLC and scanning densitometry , 1989 .

[18]  T. Takeuchi,et al.  Requirement of Larval Red Seabream Pagrus major for Essential Fatty Acids*1 , 1989 .

[19]  J. Sargent,et al.  The role of polyunsaturated fatty acids in fish. , 1986, Comparative biochemistry and physiology. B, Comparative biochemistry.

[20]  T. Takeuchi,et al.  Improvement of quality of red sea bream eggs by feeding broodstock on a diet containing cuttlefish meal or on raw krill shortly before spawning. , 1985 .

[21]  J. Sargent,et al.  Changes in the fatty acid composition of phospholipids from turbot (Scophthalmus maximus) in relation to dietary polyunsaturated fatty acid deficiencies. , 1985, Comparative biochemistry and physiology. B, Comparative biochemistry.

[22]  A. Itoh,et al.  Nutritional studies in the seed production of fish - XVII. Effect of nutritional quality of diets given to broodstock on the verge of spawning on reproduction of red sea bream. , 1984 .

[23]  A. Itoh,et al.  Nutritional studies in the seed production of fish - XV. Effect of nutritional composition of diets on chemical components of red sea bream broodstock and eggs produced. , 1984 .

[24]  A. Itoh,et al.  Nutritional studies in the seed production of fish - XVI. Effect of dietary protein levels on reproduction of red sea bream. , 1984 .

[25]  T. Takeuchi,et al.  Effect of low protein-high calory or essential fatty acid deficiency diet on reproduction of rainbow trout. , 1984 .

[26]  W. J. Conover,et al.  Practical Nonparametric Statistics , 1972 .

[27]  J. Mead,et al.  Quantitative densitometric thin-layer chromatography of lipids using copper acetate reagent. , 1969, Journal of chromatography.