Influence of dietary n − 3 highly unsaturated fatty acids levels on juvenile gilthead seabream (Sparus aurata) growth and tissue fatty acid composition

Ibeas, C.; Cejas, J.R.; Gómez, Tomás; Jeréz, S.; Lorenzo, A.

doi:10.1016/0044-8486(96)01251-3

Cited by 83 publications

(67 citation statements)

References 25 publications

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“…This might indicate that these fatty acids are the main source of energy and the primary fatty acids selectively incorporated into membrane phospholipids with n-3 HUFA, as previously suggested by Ibeas et al (1996). Differences regarding the polar fraction of fish fed FBM diet (lower myristic acid and palmitic acid content and higher DHA, n-3 fatty acids and PUFA) do not translate necessarily diet fatty acid composition, as no significant differences were observed between diets regarding DHA and PUFA content.…”

Section: Discussionsupporting

confidence: 48%

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Nogueira¹,

Cordeiro²,

Andrade³

et al. 2012

Turk. J. Fish. Aquat. Sci.

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Rendered animal protein ingredients, such as feather meal and blood meal, are promising animal protein sources for the replacement of fish meal often proved to combine synergistically. Three practical diets containing similar amounts of PD/ED (22.0 mg/kJ) but differing in the amount of digestible protein were tested in sea bream juveniles of initial body weight 41.81±1.12 g. FBCM diet (40%PD) and FBM diet (42%PD) contained similar percentages of blood and feather meal (10% and 5%, respectively) but differed in the proportion of soybean / rapeseed meal. Although growth performance and feed utilization were very similar in all treatments, chemical composition showed that blood and feather meal supplementation increased significantly whole-body lipid content compared with fishmeal diet (P205A). Liver lipid content was significantly lower in fish fed FBCM diet. Whole-body fatty acids composition was similar between treatments, ranging between 242.57±14.17 mg g -1 in FBM diet and 274.62±23.95 mg g -1 for FBCM diet. Palmitic acid, oleic acid, linoleic acid; EPA and DHA were the most abundant fatty acids in both polar and neutral lipid fractions of the fish. Economical evaluation indicated that the incorporation of blood and feather meal as a substitute of fish meal decreased feed costs leading to a better economic conversion ratio

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Section: Discussionsupporting

confidence: 48%

Untitled

Nogueira¹,

Cordeiro²,

Andrade³

et al. 2012

Turk. J. Fish. Aquat. Sci.

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“…This result may not necessarily be a reflection on SFO or LO impact, but perhaps more on the level of n-3 LcPUFA that were available in the diet with the highest inclusion level of each. Ibeas et al (1996) estimated the optimal dietary level of n-3 LcPUFA in juvenile gilthead seabream to be 10 g kg −1 and further increases worsening the performance of the fish. Similarly, Kalogeropoulos et al (1992) estimated the required n-3 LcPUFA for this species in diets, with approximately 80-100 g kg −1 of lipid, to be approximately 19-23% of total fatty acids.…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of sunflower oil and linseed oil as dietary ingredient for gilthead seabream (Sparus aurata) fingerlings

Wassef

Shalaby

Saleh

2015

OCL

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-A feeding trial was conducted to define the optimal mixtures of either sunflower oil (SFO) or linseed oil (LO) with fish oil (FO), in fish meal (FM) based diets for gilthead seabream (Sparus aurata) fingerling, without significant effect on fish performance, fatty acid composition and liver structure. The trial lasted nine weeks with 420 fish (∼4.0 g) testing seven isonitrogenous (∼48% CP) and isolipidic (∼18% L) diets contained three incremental inclusions of either SFO or LO (40, 48, 56 g kg −1 ) and the only-fish oil control (CTRL) diet. Results showed that the combination of 32 g fish oil plus 48 g of either SFO or LO kg −1 diet as the lipid source had performed the best among all. Fatty acid (FA) composition of muscle lipids evidenced that specific fatty acids were selectively retained or utilized. Diet induced-changes in hepatic morphology with vegetable oil inclusion level were further described. Linolenic acid (α-LNA, n-3) had led to less pronounced steatosis symptoms than linoleic acid (LOA, n-6) in liver cells. This study provides sound support for the use of preferably sunflower oil then linseed oil as a complementary lipid resource (48 g kg diet −1 ) with marine fish oil in gilthead seabream fingerling diets. Therefore, represents novel data on the potential of using sunflower oil (SFO) as a possible dietary partial substitute of fish oil for the species.

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“…In this context, most of the studies conducted in marine carnivorous fish species so far established an optimal dietary n-3 LC-PUFA requirement of 0.5%-2% of dietary DM [7]. Regarding sparids, the minimum requirement in dietary n-3 LC-PUFAs (DHA + EPA) required for optimal growth and development in juveniles has been reported to be about 1.0 in S. aurata [111], 1.3 in silver seabream, Rhabdosargus sarba [112] and 3.7 in P. major [113]. In S. hasta, the optimum dietary level of n-3 LC-PUFA in juveniles (BW i = 13.3 ± 0.1g) was determined in a nutritional study using five isonitrogenous (ca.…”

Section: Requirements Of N-3 Long Chain Polyunsaturated Fatty Acidsmentioning

confidence: 99%

Macronutrient Requirements of Silvery-Black Porgy (Sparidentex hasta): A Comparison with Other Farmed Sparid Species

Mozanzadeh¹,

Marammazi²,

Yaghoubi³

et al. 2017

Fishes

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Silvery-black porgy (Sparidentex hasta) is recognized as one of the most promising fish species for aquaculture diversification in the Persian Gulf and the Oman Sea regions. In this regard, S. hasta has received considerable attention, and nutritional studies focused on establishing the nutritional requirements for improving diet formulation have been conducted during recent years. Considering the results from different dose-response nutritional studies on macronutrient requirements conducted in this species, it can be concluded that diets containing ca. 48% crude protein, 15% crude lipid, 15% carbohydrates and 20 KJ g −1 gross energy are recommended for on-growing S. hasta juveniles. In addition, the optimum essential amino acid profile for this species (expressed as g 16 g N −1 ), should be approximately arginine 5.3, lysine 6.0, threonine 5.2, histidine 2.5, isoleucine 4.6, leucine 5.4, methionine + cysteine 4.0 (in a diet containing 0.6 cysteine), phenylalanine + tyrosine 5.6 (in a diet containing 1.9 tyrosine), tryptophan 1.0 and valine 4.6. Moreover, the optimum dietary n-3 long chain polyunsaturated fatty acids and soybean lecithin are recommended to be 0.8% and 6%, respectively. The maximum replacement of fish meal with soy protein is recommended to be between 16.5% and 27.3%. In addition, different vegetal oil sources are also recommended for partial and almost complete replacement of fish oil in diets. Although the nutritional requirements in terms of macronutrients have been established under laboratory conditions, the analysis of the available literature indicate that future studies need to be conducted using a more holistic approach under intensive farming conditions in which different nutrients or additives need to be tested under different rearing conditions for refining nutrient requirements in this species.

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Influence of dietary n − 3 highly unsaturated fatty acids levels on juvenile gilthead seabream (Sparus aurata) growth and tissue fatty acid composition

Cited by 83 publications

References 25 publications

Untitled

Untitled

Comparative evaluation of sunflower oil and linseed oil as dietary ingredient for gilthead seabream (Sparus aurata) fingerlings

Macronutrient Requirements of Silvery-Black Porgy (Sparidentex hasta): A Comparison with Other Farmed Sparid Species

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