Dietary n−3 LC-PUFA requirements in silvery-black porgy juveniles (Sparidentex hasta)

Mozanzadeh, Mansour Torfi; Marammazi, Jasem G.; Yavari, Vahid; Agh, Naser; Mohammadian, Takavar; Gisbert, Enric

doi:10.1016/j.aquaculture.2015.06.007

Cited by 38 publications

(48 citation statements)

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“…The tested values of n −3 LC-PUFA levels in the present study were much higher than the requirements for this species, which were comprised between 0.6 and 0.8% in diets containing 15% lipids (Mozanzadeh et al, 2015a). Data from growth performance parameters of silvery-black porgy juveniles fed diets with alternative vegetal oil sources demonstrated that the partial or total replacement of dietary FO by VO sources (CO and SO) did not compromise growth performance or feed efficiency compared to the control diet; however, a much longer trial simulating the entire on-growing period of this species may be required to validate these results under an industrial perspective.…”

Section: Discussionmentioning

confidence: 91%

“…Drastic changes in the fatty acid profile of liver as a consequence of dietary FO replacement with alternative lipid sources may result in changes in lipid metabolism and n − 3 LC-PUFA deficiency, which leads to the alteration in the HSI (Montero et al, 2004;Piedecausa et al, 2007;Mozanzadeh et al, 2015a). Similar to the results of the current study, Peng et al (2008) and Pérez et al (2014) also reported that the partial or complete replacement of dietary FO by soybean oil or beef tallow did not affect somatic parameters (HSI and K) in other sparid species like juvenile black seabream (Acanthopagrus schlegeli) and gilthead sea bream.…”

Section: Discussionmentioning

confidence: 99%

“…Consequently, efforts are focused on establishing the nutritional requirements of the species and optimizing diet formulation. In this context, the nutritional requirements for n −3 LC-PUFA for this species have been estimated to be between 0.6 and 0.8% (Mozanzadeh et al, 2015a); thus, we hypothesized that feeding with alternative lipid sources solely or in combination with FO, would maintain growth performance if the EFA levels were provided in the diets. The aim of this study was to evaluate the growth performance, chemical composition, particularly lipid and FA composition, feed utilization and health condition in silveryblack porgy fed experimental diets in which FO was partially or totally replaced by alternative lipid sources (sunflower oil, canola oil and tallow).…”

Section: Introductionmentioning

confidence: 99%

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Partial or total replacement of dietary fish oil with alternative lipid sources in silvery-black porgy (Sparidentex hasta)

et al. 2016

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Partial or total replacement of dietary fish oil with alternative lipid sources in silvery-black porgy (Sparidentex hasta)

et al. 2016

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“…Table 8. Growth in body weight (g), specific growth rate (SGR), feed conversion ratio (FCR) of S. hasta fed diets with graded n-3 LC-PUFA during the on-growing stage (mean ± SEM, n = 3) [114].…”

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

confidence: 99%

“…50%) and isolipidic (ca. 15%) semi-purified diets containing graded levels of n-3 LC-PUFAs (0.1, 0.6, 1.2, 1.9 and 4.2%) that were tested during eight weeks at 29 • C [114]. Specific growth rate, WG and FCR improved by increasing the dietary LC-PUFA content from 0.1% to 1.2%, and remained stable at higher n-3 LC-PUFA levels (Table 8).…”

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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Replacing Dietary Fish Oil with Vegetable Oil Blends in Female Rainbow Trout Brood Stock Does Not Affect Breeding Quality

Agh

Jafari

Jalili

et al. 2019

Lipids

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To determine the effects of replacing fish oil (FO) with a mixture of vegetable oils (VO) in plant protein‐rich diets on reproductive performance, the fatty acid profile of embryos as well as health indices of female rainbow trout (Oncorhynchus mykiss) brooders (initial mean body weight, 1.8 ± 0.1 kg), a 3‐month feeding trial was conducted. Four isoproteic (ca. 42%) and isoenergetic (ca. 20 MJ/kg) diets were formulated in which 50% (FO50/VO50), 75% (FO25/VO75), and 100% (VO100) of FO were replaced by a mixture of VO, whereas the control diet (FO100) was prepared with FO as the major source of lipid. Fish fed the VO100 had the lowest fertilization (73.0 ± 2.5%), survival at eyed‐embryo stage (62.5 ± 5.0%), and hatching rate (56.0 ± 4.7%) rates. Brood fish fed the FO50/VO50, FO25/VO50, and VO100 diets had higher levels of saturated and monounsaturated fatty acids in embryos in comparison with fish fed FO100 diet. The levels of docosahexaenoic acid of embryos gradually decreased during embryogenesis in all treatments, whereas the concentrations of eicosapentaenoic acid was greatly increased at hatching day (35 days after spawning). Regarding serum biochemical parameters, fish fed the VO100 diet had the highest serum glucose, cholesterol, and low‐density lipoprotein levels. The results of the current study revealed that replacement of dietary FO with a mixture of VO up to 75% did not have any adverse effects on reproductive performance and health indices of O. mykiss females.

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Dietary n−3 LC-PUFA requirements in silvery-black porgy juveniles (Sparidentex hasta)

Cited by 38 publications

References 54 publications

Partial or total replacement of dietary fish oil with alternative lipid sources in silvery-black porgy (Sparidentex hasta)

Partial or total replacement of dietary fish oil with alternative lipid sources in silvery-black porgy (Sparidentex hasta)

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

Replacing Dietary Fish Oil with Vegetable Oil Blends in Female Rainbow Trout Brood Stock Does Not Affect Breeding Quality

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