scholarly journals Parental LC-PUFA biosynthesis capacity and nutritional intervention with alpha-linolenic acid affect performance of Sparus aurata progeny

2020 ◽  
Vol 223 (23) ◽  
pp. jeb214999
Author(s):  
Serhat Turkmen ◽  
Maria J. Zamorano ◽  
Hanlin Xu ◽  
Hipólito Fernández-Palacios ◽  
Lidia Robaina ◽  
...  
Keyword(s):  
Developmental Stages ◽  
Sparus Aurata ◽  
Quality Parameters ◽  
Human Consumption ◽  
Gilthead Seabream ◽  
Alpha Linolenic Acid ◽  
Spawning Period ◽  
Nutritional Programming ◽  
Plant Protein Sources

ABSTRACTEnvironmental factors such as nutritional interventions during early developmental stages affect and establish long-term metabolic changes in all animals. Diet during the spawning period has a nutritional programming effect in offspring of gilthead seabream and affects long-term metabolism. Studies showed modulation of genes such as fads2, which is considered to be a rate-limiting step in the synthesis of n-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA). However, it is still unknown whether this adaptation is related to the presence of precursors or to limitations in the pre-formed products, n-3 LC-PUFA, contained in the diets used during nutritional programming. This study investigated the combined effects of nutritional programming on Sparusaurata through broodstock diets during the spawning period and in broodfish showing higher or lower fads2 expression levels in the blood after 1 month of feeding with a diet containing high levels of plant protein sources and vegetable oils (VM/VO). Broodfish showing high fads2 expression had a noticeable improvement in spawning quality parameters as well as in the growth of 6 month old offspring when challenged with a high VM/VO diet. Further, nutritional conditioning with 18:3n-3-rich diets had an adverse effect in comparison to progeny obtained from fish fed high fish meal and fish oil (FM/FO) diets, with a reduction in growth of juveniles. Improved growth of progeny from the high fads2 broodstock combined with similar muscle fatty acid profiles is also an excellent option for tailoring and increasing the flesh n-3 LC-PUFA levels to meet the recommended dietary allowances for human consumption.

scholarly journals Low dietary inclusion of nutraceuticals from microalgae improves feed efficiency and modifies intermediary metabolisms in gilthead sea bream (Sparus aurata)

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Erick Perera ◽  
David Sánchez-Ruiz ◽  
María Isabel Sáez ◽  
Alba Galafat ◽  
André Barany ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Sparus Aurata ◽  
Control Diet ◽  
Sea Bream ◽  
Metabolic Enzyme ◽  
Hepatosomatic Index ◽  
Hepatic Glycogen ◽  
Gilthead Seabream ◽  
Plasma Lactate ◽  
Alpha Linolenic Acid

Abstract The aim of this work was to evaluate two functional feeds for the gilthead seabream, Sparus aurata, containing low inclusion of two microalgae-based products (LB-GREENboost, LBGb; and LB-GUThealth, LBGh). Fish (12–13 g) were fed for 13 weeks a control diet or one of the four diets supplemented with both products at 0.5% or 1%. LBGb and LBGh did not affect specific growth rate or survival, but increased feed efficiency by decreasing feed intake and enlarging the intestines. LBGb increased hepatosomatic index and reduced cortisol levels in plasma, while both products lowered plasma lactate. Extensive metabolite and metabolic enzyme profiling revealed that microalgae supplementations, especially 1% LBGh: (i) decrease plasma lactate and increase hepatic glycogen, (ii) reduce hepatic gluconeogenesis, (iii) enhance hepatic lipogenic activity and lipid secretion, (iv) led fish to double triglyceride content in muscle and to stimulate its lipid oxidative capacity, and (v) increase the content of monounsaturated fatty acids and the omega-3 alpha-linolenic acid in muscle. This study demonstrates that both microalgae-based products are suited to improve feed efficiency and orchestrate significant changes in the intermediary metabolism in gilthead seabream juveniles.

scholarly journals Humoral immunomodulation of the gilthead seabream (Sparus aurata L.) subjected to long-term crowding stress

2016 ◽  
Vol 53 ◽  
pp. 111
Author(s):  
F.A. Guardiola ◽  
Martha Reyes-Becerril ◽  
A. Cuesta ◽  
M.A. Esteban
Keyword(s):  
Sparus Aurata ◽  
Gilthead Seabream ◽  
Crowding Stress

scholarly journals Parental nutritional programming and a reminder during juvenile stage affect growth, lipid metabolism and utilisation in later developmental stages of a marine teleost, the gilthead sea bream (Sparus aurata)

2017 ◽  
Vol 118 (7) ◽  
pp. 500-512 ◽  
Author(s):  
Serhat Turkmen ◽  
Maria J. Zamorano ◽  
Hipólito Fernández-Palacios ◽  
Carmen M. Hernández-Cruz ◽  
Daniel Montero ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Developmental Stages ◽  
Sparus Aurata ◽  
Linseed Oil ◽  
Regulation Of Gene Expression ◽  
Fish Growth ◽  
Gilthead Sea Bream ◽  
Sea Bream ◽  
Nutritional Programming ◽  
Long Chain

AbstractNutrition during periconception and early development can modulate metabolic routes to prepare the offspring for adverse conditions through a process known as nutritional programming. In gilthead sea bream, replacement of fish oil (FO) with linseed oil (LO) in broodstock diets improves growth in the 4-month-old offspring challenged with low-FO and low-fishmeal (FM) diets for 1 month. The present study further investigated the effects of broodstock feeding on the same offspring when they were 16 months old and were challenged for a second time with the low-FM and low-FO diet for 2 months. The results showed that replacement of parental moderate-FO feeding with LO, combined with juvenile feeding at 4 months old with low-FM and low-FO diets, significantly (P<0·05) improved offspring growth and feed utilisation of low-FM/FO diets even when they were 16 months old: that is, when they were on the verge of their first reproductive season. Liver fatty acid composition was significantly affected by broodstock or reminder diets as well as by their interaction. Moreover, the reduction of long-chain PUFA and increase in α-linolenic acid and linoleic acid in broodstock diets lead to a significant down-regulation of hepatic lipoprotein lipase (P<0·001) and elongation of very long-chain fatty acids protein 6 (P<0·01). Besides, fatty acid desaturase 2 values were positively correlated to hepatic levels of 18 : 4n-3, 18 : 3n-6, 20 : 5n-3, 22 : 6n-3 and 22 : 5n-6. Thus, this study demonstrated the long-term nutritional programming of gilthead sea bream through broodstock feeding, the effect of feeding a ‘reminder’ diet during juvenile stages to improve utilisation of low-FM/FO diets and fish growth as well as the regulation of gene expression along the fish’s life-cycle.

scholarly journals Lack of Negative Effects of Fasting of Gilthead Seabream (Sparus Aurata) Breeders During the Spawning Period on Maternal and Egg Nutrient Composition, Fertilization Success and Early Embryo/larval Development

2021 ◽  
Author(s):  
Stavros Chatzifotis ◽  
Abraham Gómez Gutiérrez ◽  
Maria Papadaki ◽  
Fabrizio Caruso ◽  
Irini Sigelaki ◽  
...  
Keyword(s):  
Larval Development ◽  
Proximate Composition ◽  
Sparus Aurata ◽  
Larval Survival ◽  
Fertilization Success ◽  
Early Embryo ◽  
Nutrient Composition ◽  
Gilthead Seabream ◽  
Main Study ◽  
Spawning Period

Abstract The effect of fasting on spawning performance, maternal and egg nutrient composition, and on embryo/larval development was monitored in gilthead seabream (Sparus aurata). Two broodstocks were fasted during two consequtive years, for a period of 43 and 54 days withing the spawning season, in a preliminary (year 1) and a main study (year 2), respectively. Mean daily fecundity showed a declining trend during fasting in the main study only, while fertilization success was high in both years and it was not affected by fasting, as was hatching and 5-day larval survival. There was a loss of 23.5% of maternal body mass due to fasting, and gonadosomatic and hepatosomatic indexes as well as crude protein in maternal muscle and gonads -but not in liver- were reduced after fasting. In muscle, after fasting Σω-6 PUFA and C18:3ω-3 were reduced while C20:4ω-6, 20:5ω-3/20:4ω-6 and C22:6ω-3/20:4ω-6 increased; in liver, significant reductions were observed in C16:0, C18:3 ω-3, 20:5ω-3/C22:6ω-3 and increases in C18:0, C20:5ω-3, Σω-6 PUFA and 20:5ω-3/20:4ω-6; in gonads, C15:0, ΣMUFA, 20:5ω-3/C22:6ω-3, 20:5ω-3/20:4ω-6 were increased while C18:1ω-9, C20:5ω-3 reduced. Contrary to maternal tissues, the energy density and proximate composition of the eggs did not change due to fasting. The study suggests that fasting of gilthead seabream breeders for many weeks during the spawning period does not affect spawning performance, egg proximate composition or embryo and early larval development, since maternal nutrient reserves are mobilized to maintain optimal egg nutrient composition.

Effects on growth and biochemical responses in juvenile gilthead seabream ‘Sparus aurata’ after long-term dietary exposure to low levels of dioxins

Chemosphere ◽  
2008 ◽  
Vol 73 (1) ◽  
pp. S303-S310 ◽  
Author(s):  
Manuela Ábalos ◽  
Esteban Abad ◽  
Alicia Estévez ◽  
Montserrat Solé ◽  
Astrid Buet ◽  
...  
Keyword(s):  
Sparus Aurata ◽  
Dietary Exposure ◽  
Gilthead Seabream ◽  
Biochemical Responses ◽  
Low Levels

Metabolic and molecular stress responses of the gilthead seabream Sparus aurata during long-term exposure to increasing temperatures

2009 ◽  
Vol 156 (4) ◽  
pp. 797-809 ◽  
Author(s):  
Konstantinos Feidantsis ◽  
Hans O. Pörtner ◽  
Antigoni Lazou ◽  
Basile Kostoglou ◽  
Basile Michaelidis
Keyword(s):  
Stress Responses ◽  
Sparus Aurata ◽  
Gilthead Seabream
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