Nutritional evaluation of Gracilaria pulvinata as partial substitute with fish meal in practical diets of barramundi (Lates calcarifer)

Morshedi, Vahid; Bahabadi, Mahmoud Nafisi; Sotoudeh, Ebrahim; Azodi, Maryam; Hafezieh, M

doi:10.1007/s10811-017-1199-y

Cited by 35 publications

(32 citation statements)

References 71 publications

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“…The findings of the current research demonstrated that the fillet proximate composition did not affect by the inclusion of seaweeds in diet as also reported in red seabream (Kalla et al., 2008), rabbitfish (Xu et al., 2011), Nile tilapia (Silva et al., 2015), European sea bass ( Dicentrarchus labrax ) (Peixoto et al., 2016), rainbow trout (Ribeiro et al., 2017) and L. calcarifer (Morshedi et al., 2018). In contrast, many other studies reported that the biochemical composition of body remarkably altered in different fish species fed on the various seaweed‐supplemented diets (Abdel‐Warith, Younis, & Al‐Asgah, 2016; Azaza et al., 2008; Wassef, El‐Sayed, & Sakr, 2013).…”

Section: Discussionsupporting

confidence: 80%

Replacement of dietary fishmeal with Sargassum ilicifolium meal on growth, innate immunity and immune gene mRNA transcript abundance in Lates calcarifer juveniles

et al. 2020

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A 6‐week study was conducted to assess the effect of dietary fishmeal (FM) replacement with Sargassum ilicifolium meal (SIM) at four substitution levels including 0 (control), 3% (S3), 6% (S6) and 9% (S9) on performance of Asian sea bass (Lates calcarifer) juveniles (initial mean body weight of 29.0 ± 1.0 g). Growth performance pronouncedly increased in SIM‐supplemented groups compared to the control (p < .05). Fish fed on the S6 diet had higher pancreatic digestive enzyme activities than other treatments. Supplementing diet with SIM remarkably enhanced red blood cell count compared to the control. Moreover, fish in the control and S3 groups had higher lymphocyte, but lower neutrophil percentages than the S6 and S9 treatments (p < .05). The greatest and the least amounts of the total protein and total immunoglobulins (Ig) in serum were found in the S6 and the control, respectively. The amount of alternative complement pathway activity in the serum of fish in the S9 group was higher than the other groups, whereas higher serum lysozyme activity was found in the S6 and S9 treatments compared to those in the control and S3 groups (p < .05). Total Ig content of the skin mucus in the S6 and S9 groups was higher than the control. The greatest and the least mucosal lysozyme activates were found in the S6 and control, respectively (p < .05). The liver superoxide dismutase activity in the S6 and S9 groups was higher than the other treatments (p < .05). The insulin‐like growth factor‐1 mRNA transcript abundance levels in the liver were greatest and the least in fish fed on the S9 and control, respectively. The expression of lysozyme gene, as indicated by an abundance of mRNA transcript for lysozyme, in the liver was higher in the S6 and S9 groups than the other groups (p < .05). Furthermore, fish fed the SIM‐incorporated diets had higher interlukine‐1β mRNA transcript abundance in the liver compared to the control (p < .05). Overall, according to the findings of this study 6% of dietary FM could be replaced with SIM to improve growth rate and health status in L. calcarifer juveniles.

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Section: Discussionsupporting

confidence: 80%

Replacement of dietary fishmeal with Sargassum ilicifolium meal on growth, innate immunity and immune gene mRNA transcript abundance in Lates calcarifer juveniles

et al. 2020

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“…However, Phdp overrode the effect of diet, consequently no differences were observed in glucose and triglycerides levels after infection. The results obtained in placebo groups substantiate the antihyperlipidemic effect described in rats 42 , mice 43 , chickens 44 and zebrafish 43 when fed diets supplemented with seaweeds, as well as the lower cholesterol and triglyceride levels observed in Japanese flounder ( Paralichthys olivaceus ) fed diets supplemented with Eucheuma denticulatum 45 and barramundi ( Lates calcarifer ) fed diets containing Gracilaria pulvinate 46 .…”

Section: Discussionsupporting

confidence: 72%

Protective effects of seaweed supplemented diet on antioxidant and immune responses in European seabass (Dicentrarchus labrax) subjected to bacterial infection

Peixoto

Ferraz

Magnoni

et al. 2019

Sci Rep

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European seabass (Dicentrarchus labrax) production is often hampered by bacterial infections such as photobacteriosis caused by Photobacterium damselae subsp. piscicida (Phdp). Since diet can impact fish immunity, this work investigated the effect of dietary supplementation of 5% Gracilaria sp. aqueous extract (GRA) on seabass antioxidant capacity and resistance against Phdp. After infection, mortality was delayed in fish fed GRA, which also revealed increased lysozyme activity levels, as well as decreased lipid peroxidation, suggesting higher antioxidant capacity than in fish fed a control diet. Dietary GRA induced a down-regulation of hepatic stress-responsive heat shock proteins (grp-78, grp-170, grp-94, grp-75), while bacterial infection caused a down-regulation in antioxidant genes (prdx4 and mn-sod). Diet and infection interaction down-regulated the transcription levels of genes associated with oxidative stress response (prdx5 and gpx4) in liver. In head-kidney, GRA led to an up-regulation of genes associated with inflammation (il34, ccr9, cd33) and a down-regulation of genes related to cytokine signalling (mif, il1b, defb, a2m, myd88). Additionally, bacterial infection up-regulated immunoglobulins production (IgMs) and down-regulated the transcription of the antimicrobial peptide leap2 in head kidney. Overall, we found that GRA supplementation modulated seabass resistance to Phdp infection.

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“…Likewise, dietary inclusion of Gracilaria pulvinata up to 9% level in barramundi ( Lates calcarifer ) feeds also decreased serum triglycerides and cholesterol (Morshedi et al . ). The authors suggest that the presence of high soluble fibre content or n −3 fatty acids could have attributed to these changes.…”

Section: Macroalgae In Fish Dietsmentioning

confidence: 97%

Macroalgae as a sustainable aquafeed ingredient

Wan

Davies

Soler-Vila

et al. 2018

Reviews in Aquaculture

199

129

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Macroalgae, commonly known as seaweed, offer a novel and added-value dietary ingredient in formulated diets for fish. Production of biomass can be achieved without reliance on expensive arable land, as seaweed may be collected from coastal regions or farmed. There are three taxonomic groups represented by the term 'macroalgae': Rhodophyta (red), Chlorophyta (green) and Phaeophyta (brown). Like terrestrial plants, nutritional content in macroalgae can vary greatly amongst species, genera, divisions, seasons and locations. Aside from their basic nutritional value, seaweeds contain a number of pigments, defensive and storage compounds, and secondary metabolites that could have beneficial effects on farmed fish. This review appraises the beneficial qualities of these macroalgae compounds and their potential for exploitation in commercial finfish feeds. The current knowledge of the effects of macroalgae inclusion in finfish diets is also addressed. From these >50 fish feeding studies that were analysed, enhancing trends in fish growth, physiology, stress resistance, immune system and fillet muscle quality were reported. However, only a small fraction of algal species have so far been investigated as potential components in finfish diets, and furthermore, this review has identified a number of knowledge gaps that current research has yet to address. To conclude, an appraisal is made of the possible technologies employed to exploit seaweeds to an industrial level through stabilising the algal meal, enhancing the digestibility and functional food properties.

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Nutritional evaluation of Gracilaria pulvinata as partial substitute with fish meal in practical diets of barramundi (Lates calcarifer)

Cited by 35 publications

References 71 publications

Replacement of dietary fishmeal with Sargassum ilicifolium meal on growth, innate immunity and immune gene mRNA transcript abundance in Lates calcarifer juveniles

Replacement of dietary fishmeal with Sargassum ilicifolium meal on growth, innate immunity and immune gene mRNA transcript abundance in Lates calcarifer juveniles

Protective effects of seaweed supplemented diet on antioxidant and immune responses in European seabass (Dicentrarchus labrax) subjected to bacterial infection

Macroalgae as a sustainable aquafeed ingredient

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