Dietary protein source or energy levels have no major impact on growth performance, nutrient utilisation or flesh fatty acids composition of market-sized Senegalese sole

Valente, Luísa; Linares, F.; Villanueva, José Luis Rodríguez; Silva, J.M.G.; Espe, Marit; Escórcio, C.; Pires, M.A.; Saavedra, María José; Borges, Pedro; Médale, Françoise; Álvarez-Blázquez, Blanca; Peleteiro, J.B.

doi:10.1016/j.aquaculture.2011.05.026

Cited by 80 publications

(66 citation statements)

References 53 publications

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“…Additive and PP inclusion also did not influence HSI values and, consequently, did not seem to promote an increased or decreased fat retention in liver. Liver index of Senegalese sole (Solea senegalensis) was higher in fish fed a PP-based diet compared to FM-based diets, although HSI decreased with reduced fat content in FM diets (Valente et al, 2011). However, no evidence of increased fat storage in liver was found in other fish species feeding high levels of PP (Chatzifotis et al, 2008;Dimitroglou et al, 2010;Hansen et al, 2013;Lekva et al, 2010).…”

Section: Discussionmentioning

confidence: 66%

The effect of supplementation with polysaccharides, nucleotides, acidifiers and Bacillus strains in fish meal and soy bean based diets on growth performance in juvenile turbot (Scophthalmus maximus)

Fuchs¹,

Schmidt

Slater

et al. 2015

Aquaculture

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The investigation and application of a wide range of dietary supplements, such as probiotics, prebiotic and other additives, are increasingly popular in aquaculture research and practice. To date few studies have attempted to quantify the value of commercially available additives in improving growth performance of juvenile turbot (Scophthalmus maximus) and in compensating potential growth reduction resulting from high levels of plant protein (PP) in carnivorous fish diets. Two experiments were conducted to investigate the effect of different active ingredients in diet additives on turbot. I) Five diets supplemented with (1) yeast b-glucan and mannan oligosaccharides (GM), (2) alginic acid from brown algal extracts (AC), (3) yeast nucleotides and RNA (NR), (4) potassium diformate (PDF) and (5) bacteria strains Bacillus subtilis and B. licheniformis (BS), containing fish meal (FM) as the only protein source, were fed to turbots (initial weight 48.8 g ± 5.2 g) over 112 days. II) Four diets supplemented with (1) GM, (2) AC, (3) NR and (4) BS, containing soy protein concentrate (SPC) and wheat gluten (WG) as a partial replacement of FM, were fed to turbots (initial weight 95.8 g ± 17.7 g) over 84 days. A non-supplemented FM diet (exp. I) and an FM-and PP-based diet (exp. II), respectively, were used as control diets. Diet additives did not promote additional weight gain, specific growth rate (SGR), daily feed intake (DFI) and feed conversion ratio (FCR) in turbot fed FM-or PP-based diets (p N 0.05) when compared to isocaloric control diets in both experiments. Growth of turbots fed the high FM content control diet (II) was significantly higher than all other treatments (p b 0.01). Body proximate composition, condition factor (K) and liver index (HSI) remained unaffected by additive supplementation in fish fed either FM or PP diets (p N 0.05). Results indicate that reported benefits for specific diet additives cannot be assumed to function or applied across species boundaries and age classes. In addition, dietary additive application may not be economically valid for larger animals and/or animals not exposed to specific culture-related stressors. The benefits of popular additives to high value species such as S. maximus remains to be tested under specific immune or physical stress situations and at crucial larval and early juvenile stages.

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Section: Discussionmentioning

confidence: 66%

The effect of supplementation with polysaccharides, nucleotides, acidifiers and Bacillus strains in fish meal and soy bean based diets on growth performance in juvenile turbot (Scophthalmus maximus)

Fuchs¹,

Schmidt

Slater

et al. 2015

Aquaculture

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“…The current trend in fish feed production is to increase lipid content with the aim to reduce the use of protein as energy source and thus reduce the use of fishmeal (Valente et al, 2011). However, is well reported (Mongile et al, 2014) that the increase of lipid content in the diet (from 16 to 24 %) had no effects on specific growth rate and final body weight of gilthead sea bream.…”

Section: Discussionmentioning

confidence: 91%

Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata)

Piccolo

Iaconisi

Marono

et al. 2017

Animal Feed Science and Technology

174

134

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The aim of this study was to evaluate the effects of the inclusion of Tenebrio molitor larvae meal in practical diets for gilthead sea bream on growth performance, nutrients digestibility, somatic and marketable indexes. Two separate trials were carried out: in the first a total of 153 gilthead sea bream (105.2 ± 0.17 g average initial body weight) were randomly allocated in 9 fiberglass 220 liter tanks (17 fish per tank) in an indoor water recirculating system. The fish were fed three isoenergetic and isoproteic diets formulated to contain increasing levels of TM meal inclusion and precisely: a control diet (TM0), in which fish meal was the main protein source; TM25 and TM50 diets, in which 25% and 50% of Tenebrio molitor larvae meal was added to the diet, respectively. These inclusion rates corresponded to 30% and 60% of inclusion on protein bases and 35% and 71% of fish meal substitution on protein bases for TM25 and TM50 diets, respectively. Each diet was randomly assigned to 3 tanks and the trial lasted 163 days. In the second trial the apparent digestibility coefficients of the 3 diets were measured on 72 fish randomly distributed to 3 digestibility tank-units (24 fish per unit, average body weight: 86.97±2.3 g) using an indirect method (acid insoluble ash).The group fed TM25 showed a higher (P < 0.05) final weight, specific growth rate, weight gain %, protein efficiency ratio, and a lower feed conversion ratio compared to the other 2 groups. The estimated apparent digestibility coefficients of crude protein and ether extract of the diets were lower (P < 0.01) in TM50 than in the other 2 groups. No significant differences have been found between TM0 and Tenebrio molitor larvae meal groups in morphometric and commodity-related characteristics, except for dressed yield and viscerosomatic index (VSI), that resulted the lowest and the highest, respectively, in TM50. The skin colour resulted to be affected by dietary inclusion of insect meal, especially at 50% of inclusion. The general evaluation of the results demonstrates that Tenebrio molitor larvae meal can replace fish meal up to 25% of inclusion in the diet for Sparus aurata without negative effects on weight gain, crude protein and ether extract digestibility, marketable indexes after 163 days feeding. On the contrary, when Tenebrio molitor larvae meal was included at 50%, nutrient digestibility, dressed yield, VSI and skin colour were penalized.

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“…There has been some success in replacing fish meal and fish oil in commercial feeds by using plant feedstuffs in fish feeds, including oilseeds, legumes and cereal grains, which traditionally have been used as protein or energy concentrates, as well as novel products developed through various processing technologies (Day and Plascencia-González 2000;Choi et al 2004;Grisdale-Helland et al 2002;Gatlin et al 2007;Naylor et al 2009;Bengtson and Nardi 2010;Valente et al 2011). However, although important advances have been achieved in terms of percentage of protein substitution and establishment of non-lipid-rich diets without affecting growth or nutrient utilization of flatfish, further research is required to improve diets and avoid some adverse effects associated with toxic factors or unbalanced nutrients provoking hepatic damage (Valente et al 2011). Moreover, the role of alternative food products such as zooplankton (i.e.…”

Section: The Aquaculture Of Flatfishmentioning

confidence: 99%

Advances in genomics for flatfish aquaculture

Cerdà

Manchado

2012

Genes Nutr

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Fish aquaculture is considered to be one of the most sustainable sources of protein for humans. Many different species are cultured worldwide, but among them, marine flatfishes comprise a group of teleosts of high commercial interest because of their highly prized white flesh. However, the aquaculture of these fishes is seriously hampered by the scarce knowledge on their biology. In recent years, various experimental 'omics' approaches have been applied to farmed flatfishes to increment the genomic resources available. These tools are beginning to identify genetic markers associated with traits of commercial interest, and to unravel the molecular basis of different physiological processes. This article summarizes recent advances in flatfish genomics research in Europe. We focus on the new generation sequencing technologies, which can produce a massive amount of DNA sequencing data, and discuss their potentials and applications for de novo genome sequencing and transcriptome analysis. The relevance of these methods in nutrigenomics and foodomics approaches for the production of healthy animals, as well as high quality and safety products for the consumer, is also briefly discussed.

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Dietary protein source or energy levels have no major impact on growth performance, nutrient utilisation or flesh fatty acids composition of market-sized Senegalese sole

Cited by 80 publications

References 53 publications

The effect of supplementation with polysaccharides, nucleotides, acidifiers and Bacillus strains in fish meal and soy bean based diets on growth performance in juvenile turbot (Scophthalmus maximus)

The effect of supplementation with polysaccharides, nucleotides, acidifiers and Bacillus strains in fish meal and soy bean based diets on growth performance in juvenile turbot (Scophthalmus maximus)

Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata)

Advances in genomics for flatfish aquaculture

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