Effect of Ulva meal supplementation on lipid metabolism of black sea bream, Acanthopagrus schlegeli (Bleeker)

Nakagawa, Heisuke; Kasahara, Seiji; Sugiyama, Teruyuki

doi:10.1016/0044-8486(87)90315-2

Cited by 60 publications

(34 citation statements)

References 16 publications

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“…These results confirm the effect at a molecular level on the lipid metabolism and agree with previously reported studies (Maeda et al 2005;Seo et al 2013). These studies also demonstrated that U. clathrata had significant effects on lipid composition of different fishes and terrestrial animal species (Nakagawa et al 1987;Nakagawa 1997;Wong et al 1999;Pengzhan et al 2003;Ortiz et al 2006;Carillo et al 2008;Ergün et al 2008). In shrimp, U. clathrata promotes the production of certain 18 carbon polyunsaturated fatty acids (PUFAs) (Kumari et al 2010), as well as favoring an increase in the content of 18:0, 18:3n3, 20:5n3 (Ortiz et al 2006;Carillo et al 2008;Peña-Rodríguez et al 2010).…”

Section: Candidate Genes Involved In the Lipid Metabolism And The Immsupporting

confidence: 94%

Consumption of Ulva clathrata as a dietary supplement stimulates immune and lipid metabolism genes in Pacific white shrimp Litopenaeus vannamei

et al. 2016

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Next-generation massive parallel sequencing and bioinformatic techniques were applied to observe the differences in the transcriptome of Litopenaeus vannamei juveniles that were fed with a control diet (T1) or the same diet plus a live Ulva clathrata supplement (T2). The average size of the libraries was of 271 bp for T1 and 275 bp for T2. A total of 7, 706,527 raw reads were obtained with a total of 6,591,856 reads after filtering through Q30, from which 3,855,181 corresponded to T1 and 2,736,675 corresponded to T2. Assembled contigs of each library were annotated using BLASTx from NCBI [obtaining 15,861 (42.77 %) unigenes for T1 and 14,246 (45.06 %) for T2]. In addition, the Kyoto Encyclopedia of Genes and Genomes database (KEGG) as well as the Gene Ontology database (GO) were employed. The differential expression analysis generated a total of 396 transcripts with different expression levels between the two treatments, and these were classified into 4 groups in accordance to their possible function; among others, it identified a percentage of transcripts associated with: immune response (12 %), lipid metabolism (34 %), oxidation-reduction processes (34 %), and stress responses (20 %). The study shows a systematic description of the transcriptome analysis of L. vannamei and provides valuable genetic information required for studying the molecular mechanisms operating when shrimp are fed with macroalgae U. clathrata.

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Section: Candidate Genes Involved In the Lipid Metabolism And The Immsupporting

confidence: 94%

Consumption of Ulva clathrata as a dietary supplement stimulates immune and lipid metabolism genes in Pacific white shrimp Litopenaeus vannamei

et al. 2016

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“…However, Satoh et al (2002) reported that the weight gain of rats fed a diet containing commercially available green tea extract at a concentration of 5% only decreased since 2 weeks after being fed when the rats were fed the diets containing 0%, 1.25% and 5% green tea extract for 8 weeks. Unlike this study, however, dietary inclusion of oriental and Chinese herbs or algae improved the growth performance of fish (Appler and Jauncey 1983;Appler1985;Nakagawa et al 1987;Kim et al 1998Kim et al , 2000Kim et al , 2002cWu et al 1998;Koo et al 2001). Also, dietary inclusion of the byproduct of Bupleurum falcatum improved the growth of broilers (Cho et al 2000).…”

Section: Resultsmentioning

confidence: 68%

Effect of dietary inclusion of various sources of green tea on growth, body composition and blood chemistry of the juvenile olive flounder, Paralichthys olivaceus

Cho

Lee

Park

et al. 2006

Fish Physiol Biochem

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This study was performed to determine the effect of the dietary inclusion of various sources of green tea on growth, body composition and blood chemistry of the olive flounder. Twenty-five juvenile fish were distributed into each of 15 180 l flow-through tanks. Five experimental diets with triplicates were prepared: control, raw leaves, dry leaves, by-product and extract. The 5% various sources (raw leaves, dry leaves and by-product) of green tea were included in the experimental diets at the expense of 5% wheat flour. The extract was diluted with water and mixed with the ingredients to maintain 5% green tea at the same concentration as in the other diets. Weight gain and specific growth rate of fish fed the control diet and experimental diet containing extract were higher than those of fish fed the diets containing raw and dry leaves and by-product. Feed and protein efficiency ratio for fish fed the control diet and diet containing extract was higher than for fish fed the diets containing raw leaves and by-product. The level of low-density lipoprotein (LDL) cholesterol of fish fed the control diet was higher than that of fish fed the other diets containing various sources of green tea. The glutamic oxaloacetic transaminase (GPT) concentration of fish fed the diets containing raw leaves and extract was lower than that of fish fed the control diet. Crude lipid content of liver in fish fed the control diet was higher than that in fish fed the diets containing raw and dry leaves and by-product but was not significantly different from that of fish fed the diet containing extract. Dietary inclusion of extract was the most effective way to improve growth and feed utilization of the olive flounder among the various sources of green tea, and all sources of green tea were effective in lowering serum LDL cholesterol and GPT of the fish.

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“…In such systems, the seaweeds contribute bioremediation capacity by removing dissolved nutrients from the effluent. The potential for seaweeds as components of aquafeed could be a further contribution towards sustainability of the system (Nakagawa et al 1987;Hashim and Maat-Saat 1992). It is possible that this could become a marketing tool for abalone, as abalone fed on seaweed as opposed to those fed on compound feed containing fishmeal/oil could be marketed on the basis of the sustainability of the operationperhaps as 'organic' abalone?…”

Section: Weaknessesmentioning

confidence: 99%

Growing Ulva (Chlorophyta) in integrated systems as a commercial crop for abalone feed in South Africa: a SWOT analysis

et al. 2008

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Over 1,000t fresh weight of Ulva was cultivated on South African abalone farms in 2007, primarily for feed, but in one case to allow partial re-circulation by nutrient removal. The potential of this new commercial crop is analysed. Material is collected from natural free-floating populations and at least four species are commonly grown, with different ecophysiological characteristics. A brown epiphyte, Myrionema strangulans, causes a disease of the Ulva, which is currently managed by farmers by restocking. The main potential threat is that some farmers are wary of integrated systems, fearing they may promote disease in abalone, although Ulva has been grown in abalone effluent and fed back to the abalone on one farm for 6 years without adverse effects. Opportunities exist for the expansion of Ulva cultivation via further spread of the abalone industry, the inclusion of seaweed raceways in proposed fish-farming activities, or the potential for the inclusion of high quality cultivated Ulva as a constituent in aquafeed. A conservative estimate of production over a full year from these raceway systems was 26.1 g dw m −2 day −1 (2006) and 19.7 g dw m −2 day −1 (2007), similar to maximum figures for total annual microalgal biomass production in outdoor systems.

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Effect of Ulva meal supplementation on lipid metabolism of black sea bream, Acanthopagrus schlegeli (Bleeker)

Cited by 60 publications

References 16 publications

Consumption of Ulva clathrata as a dietary supplement stimulates immune and lipid metabolism genes in Pacific white shrimp Litopenaeus vannamei

Consumption of Ulva clathrata as a dietary supplement stimulates immune and lipid metabolism genes in Pacific white shrimp Litopenaeus vannamei

Effect of dietary inclusion of various sources of green tea on growth, body composition and blood chemistry of the juvenile olive flounder, Paralichthys olivaceus

Growing Ulva (Chlorophyta) in integrated systems as a commercial crop for abalone feed in South Africa: a SWOT analysis

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