Effects of Dietary Lipid Sources on the Growth and Body Composition of the far Eastern Catfish, Silurus asotus

Kim, Kyoung-Duck; Kim, Jin Do; Lim, Sang Gu; Kang, Yong Jin; Son, Maeng Hyun

doi:10.5657/kfas.2010.43.5.445

Cited by 6 publications

(7 citation statements)

References 24 publications

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“…The fatty acid composition of fish in this study well reflected the fatty acid composition of dietary lipid. Similar results had been founded in previous catfish study ( Kim et al, 2010 ). Kim et al (2010) reported that linseed oil or squid liver oil containing n-3 fatty acids are the proper dietary lipid sources for the growth of juvenile far eastern catfish.…”

Section: Discussionsupporting

confidence: 93%

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Effects of Dietary Protein and Lipid Levels on Growth and Body Composition of Juvenile Far Eastern Catfish Silurus asotus

Kim

Lim

Kang

et al. 2012

Asian Australas. J. Anim. Sci

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: A 32 factorial experiment was conducted to determine the effects of dietary protein and lipid levels on the growth and body composition of juvenile far eastern catfish. Six diets were formulated to contain three levels of protein (20%, 30% and 40%) and two levels of lipid (9% and 17%). Triplicate groups of fish (initial body weight of 7.6 g) were hand-fed to apparent satiation for 66 days. Final mean weight was improved with increasing dietary protein and lipid levels, and the highest final mean weight was observed in fish fed the 40/17 (% protein/% lipid) diet. No significant difference was observed in final mean weight for fish fed between 30/17 diet and 40/9 diet. Feed efficiency of fish fed the diets containing over 30% protein levels with 9% and 17% lipid levels were significantly higher than those of fish fed the 20% protein levels. Feed efficiency of fish fed the 30/17 diet was not significantly different from that of fish fed the 40/9 diet or 40/17 diet. Feed efficiency and protein efficiency ratio of fish fed the 20% protein diets with 17% lipid level were significantly higher than those of fish fed 9% lipid diet. Daily feed intake of fish tended to decrease with increasing dietary protein and lipid levels. Moisture content of whole body in fish fed the 9% lipid diets was significantly higher than that of fish fed the 17% lipid diets at the same protein level, but the opposite trends were found for crude lipid content. Significant effects of dietary lipid were observed for most fatty acids, according to their relative values in the diets. The results of this study suggest that the protein requirement for maximum growth of juvenile far eastern catfish may be higher than 40%, and an increase of dietary lipid level from 9% to 17% can improve growth and feed utilization.

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Section: Discussionsupporting

confidence: 93%

“…Recently, nutritional studies evaluating availability of dietary lipid source and substitution of fish meal with soybean meal for growth in this species have been performed ( Kim et al, 2009 ; 2010 ). However, information on growth performance of dietary protein and lipid levels is limited to date in this species.…”

Section: Introductionmentioning

confidence: 99%

Effects of Dietary Protein and Lipid Levels on Growth and Body Composition of Juvenile Far Eastern Catfish Silurus asotus

Kim

Lim

Kang

et al. 2012

Asian Australas. J. Anim. Sci

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“…Experimental diets ( Table 1 ) were formulated as described by Kim et al [ 13 ] for this catfish species and 4-NP (CAS No. 104- 40-5, Sigma-Aldrich, >98%) was supplemented at 0.1 and 1.0 mg/kg diets.…”

Section: Methodsmentioning

confidence: 99%

“…Pellets were crumbled into particles, sieved to obtain appropriate sizes and stored at -70°C until fed. The control diet contained (in %): white fish meal 40, casein 13, beef tallow 5, corn oil 5, dextrin 27, α-cellulose 5.5, vitamin mix 2, mineral mix 2 and choline chloride 0.6 [ 13 ]. As the 4-NP content constituted a small portion of the diet, i.e., 0.01-0.1 mg/100 g diet in the 4-NP exposure groups, 4-NP was added to the control diet without further composition adjustments.…”

Section: Methodsmentioning

confidence: 99%

Alteration of hepatic anti-oxidant systems by 4-nonylphenol, a metabolite of alkylphenol polyethoxylate detergents, in Far Eastern catfish <i>Silurus asotus</i>

Park

2015

Environ Health Toxicol

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ObjectivesThis study aimed to estimate the effects of 4-nonylphenol (NP), a ubiquitously present surfactant in aquatic environments, on the anti-oxidant systems of the liver in the Far Eastern catfish Silurus asotus.MethodsChanges in biochemical parameters involved in glutathione (GSH)-related and other anti-oxidant systems were analyzed following 4 weeks of 4-NP administration (0.1 and 1.0 mg/kg diet) via a formulated diet to catfish.Results4-NP exposure induced an elevation in hepatic lipid peroxide levels and an accompanying decrease in reduced state GSH after 2 weeks, suggesting pro-oxidant effects of the chemical in catfish. This oxidative stress was associated with an inhibition of the GSH-utilizing enzyme glutathione peroxidase at the same time point. This inhibition was restored after 4 weeks. The activities of other anti-oxidant enzymes, i.e., glutathione reductase, superoxide dismutase and catalase were increased after 4 weeks. These enzyme increases occurred more strongly at the higher 4-NP concentration (1.0 mg/kg diet).Conclusions4-NP given to catfish at 0.1 to 1.0 mg/kg diet, concentrations relevant to environmental levels, depletes the endogenous anti-oxidant molecule GSH and temporarily inhibits GSH-related anti-oxidant enzymes. Such declines in anti-oxidant capacity and elevated oxidative stress seem to be compensated eventually by subsequent activation of various anti-oxidant enzyme systems.

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“…Kim et al, (2010) 16:0 (palmitic acid) 18:1n-9 (oleic acid, elaidic acid) n-3 HUFA , 16:0 18:1n-9 . , , sea bream, channel catfish, Atlantic halibut (Ibeas et al, 1996;Bae et al, 2004;Aksoy et al, 2009;Koizumi et al, 2009;Kikuchi et al, 2011).…”

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confidence: 99%

Effects of Dietary Lipid Sources and Essential Fatty Acids on the Growth and Body Composition of the Juvenile River Puffer Fish Takifugu obscurus

Yoo¹,

Bai²

2014

Korean Journal of Fisheries and Aquatic Sciences

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We conducted an 8-week feeding trial to evaluate dietary lipid sources on the growth performance and body composition of juvenile river puffer fish Takifugu obscurus. Nine experimental diets were formulated with fishmeal as the major protein ingredients, providing 50% crude protein. The experimental diets contained either beef fallow (BF), soybean oil (SO), rapeseed oil (RO), or linseed oil (LO). Each of these diets was then supplemented or not with 0.5% n-3 HUFA (BFH, SOH, ROH, and LOH), resulting in a total of eight experimental diets. The control diet contained fish oil (FO) as the lipid source. Fish averaging 10.3±0.03 g were fed the experimental diets in randomly selected triplicate groups for 8 weeks. Weight gain and feeding efficiency of fish fed the FO and SOH diets were significantly higher than those of fish fed BF or RO (P<0.05), but these diets did not differ significantly from the other diets. The protein efficiency ratio of fish fed the SOH diet was significantly higher than that of fish fed the BF, SO, or RO diets (P<0.05), but these were not significantly different from the other diets. The specific growth rate of fish fed the FO and SOH diets was significantly higher than that of fish fed the BF diet (P<0.05). Whole body DHA and n-3 HUFA contents of fish fed the FO diet were significantly higher than those of fish fed the SO, RO, or LO diets (P<0.05), but were not significantly different from the other diets. These results indicate that soybean oil and linseed oil could replace up to 100% of fish oil in the diet containing 60% fishmeal for river puffer fish.

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Effects of Dietary Lipid Sources on the Growth and Body Composition of the far Eastern Catfish, Silurus asotus

Cited by 6 publications

References 24 publications

Effects of Dietary Protein and Lipid Levels on Growth and Body Composition of Juvenile Far Eastern Catfish Silurus asotus

Effects of Dietary Protein and Lipid Levels on Growth and Body Composition of Juvenile Far Eastern Catfish Silurus asotus

Alteration of hepatic anti-oxidant systems by 4-nonylphenol, a metabolite of alkylphenol polyethoxylate detergents, in Far Eastern catfish <i>Silurus asotus</i>

Effects of Dietary Lipid Sources and Essential Fatty Acids on the Growth and Body Composition of the Juvenile River Puffer Fish Takifugu obscurus

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