Polysaccharides in Aquatic Disease Management

Thangap,; Marudhup, i; Inbakandan, D.

doi:10.4172/2150-3508.1000135

Cited by 11 publications

(11 citation statements)

References 22 publications

(27 reference statements)

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“…Significant improvements in innate immunity and antioxidant enzyme activity were observed in the fish groups fed diets containing algae extract with/without a blend of organic acids in the present study, and similar results were reported (Hoseinifar et al, 2017; Leiro et al, 2007; Marudhupandi & Inbakandan, 2015; Ng & Koh, 2017). These results might be attributed to the bioactive compounds present in marine algae and the immunomodulatory effects of organic acid blend.…”

Section: Discussionsupporting

confidence: 91%

“…In general, polysaccharides are the primary structural and/or storage compounds in marine algae (Holdt & Kraan, 2011). Polysaccharides are reportedly able to stimulate the immune system of aquatic organisms and increase resistance to pathogenic diseases (Marudhupandi & Inbakandan, 2015). The present study focused on the use of purified extracts of green/red algae mixed with organic acids which were made of abundant bioactive compounds.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of marine algal ( Ulva spp./ Solieria spp.) extracts combined with organic acids in diets for olive flounder ( Paralichthys olivaceus )

Gunathilaka

Veille²,

Tharaka

et al. 2021

Aquaculture Research

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The supplemental effect of marine algae (Ulva spp. and Solieria spp.) extracts with/without organic acids was evaluated in olive flounder (Paralichthys olivaceus) diet. A diet containing 55% fish meal was considered as the control diet. Three other diets were prepared by supplementing 0.5% of algae extract from Ulva spp. mixed with a blend of organic acids and 0.3% or 0.5% algae extracts from Ulva spp. and Solieria spp. into the control diet (CON, AS5, AL3 and AL5). Total 640 fish (initial mean body weight: 26.5 ± 0.02 g) were randomly distributed into 16 tanks as 40 fish per tank. Quadruplicate groups of fish were hand‐fed one of the experimental diets twice a day for 12 weeks. Growth performance of fish was not significantly affected by experimental diets although feed utilization of fish fed AS5 diet was significantly higher than that of the CON group. The innate immune responses and activities of antioxidant enzymes were significantly increased by dietary supplementation of the additives. When fish were challenged with Edwardsiella tarda, survival was higher in fish fed the additive supplemented diets than the CON group. Catalase, lysozyme and superoxide dismutase activities were significantly higher in surviving fish fed the additive supplemented diets than the CON group after the challenge test. Goblet cell counts in fish intestine were significantly higher in AS5 group. Amylase and lipase activities and lipid digestibility were increased by the diets containing additives. The findings in this study indicate that algal extract and/or organic acid supplementation in diets increase innate immunity, disease resistance, intestinal morphology, digestive enzyme activity, diet digestibility and feed utilization of olive flounder.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Evaluation of marine algal ( Ulva spp./ Solieria spp.) extracts combined with organic acids in diets for olive flounder ( Paralichthys olivaceus )

Gunathilaka

Veille²,

Tharaka

et al. 2021

Aquaculture Research

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“…et al, 2018). Lipopolysaccharides (LPS), PGN and polyinosinicpolycytidylic acid are the ligands that activate these receptors (Ang et al, 2020) is poorly studied (Ang et al, 2020;Marudhupandi & Inbakandan, 2015;Wang et al, 2020). However, investigating the influence of other aquatic parasites such as protozoans, fungus, algae and their molecular components on TLR/NLR activation in fish has largely remained unexplored.…”

Section: Toll-like Receptor (Tlr)mentioning

confidence: 99%

“…In common carp, bacterial flagellin has been found to activate NLR‐C (L. Zhang et al, 2018). In fish, the impact of intracellular activators including cholesterols, dNTPs, metabolites and antimicrobial peptides on NLRs is poorly studied (Ang et al, 2020; Marudhupandi & Inbakandan, 2015; Wang et al, 2020). However, investigating the influence of other aquatic parasites such as protozoans, fungus, algae and their molecular components on TLR/NLR activation in fish has largely remained unexplored.…”

Section: Potential Mechanism Of Action Of Postbiotics and Effect On I...mentioning

confidence: 99%

Molecular properties of postbiotics and their role in controlling aquaculture diseases

Sudhakaran

Guru

Haridevamuthu

et al. 2022

Aquaculture Research

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Aquaculture accounts for 8% of animal protein intake in the human diet globally, and per capita consumption is expanding faster than meat and dairy consumption. Antibiotic usage has been recorded in the rapidly developing aquaculture business, which may contribute to the growth of antimicrobial resistance, with possible ramifications for animal, human and ecosystem health. Among the several proposed alternatives, one of the investigated tactics was postbiotics. Although several studies on other alternative tactics have been published, the use of postbiotics in aquaculture is scarce. Recognizing aquaculture's rapid rise as a global source of animal nutrition, postbiotics could be a need to improve antimicrobial stewardship in a fast‐growing industry with broad ties to aquaculture and ecosystem health. This review focuses on various postbiotics as microbially produced postbiotics metabolites and their use as an infectious disease management agent in aquaculture.

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“…Several studies are focused on the use of seaweed products and byproducts as immunostimulant agent in shrimps (Chojnacka et al 2012;Sivagnanavelmurugan et al 2014). Even though the use of seaweed is proven in enhancing shrimp resistance against vibriosis due to its polysaccharide properties (Chojnacka et al 2012;Marudhupandi and Inbakandan 2015), in many cases the effect of seaweed application and supplementations contribute in lowering the growth and uncertainty of immune response. Based on this situation, an effort to enrich the nutritional properties of seaweed responsible for immunity improvement such as the availability of essential amino acids and fatty acids should be taken as a serious consideration.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Feed Supplementation with Fermented Red Seaweed (Kappaphycus alvarezii) on Growth and Survival of White Shrimp (Litopenaeus vannamei) Post-Larvae Culture

et al. 2021

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This study was aimed to investigate the effect of novel shrimp diet supplemention with fermented red seaweed Kappaphycus alvarezii on growth and survival of whiteleg shrimp (Litopenaeus vannamei) post-larvae culture. The research consisted of three consecutive steps: (1) preliminary study on Kappaphycus alvarezii fermentation, (2) feed formulation and proximate analysis, (3) performance test of commercial feed (C), commercial + 0.5% K. alvarezii (EF1), and commercial + 1.5% fermented K. alvarezii (EF2). Following 15 days of feeding, the highest biomass, specific growth rate and survival were achieved in EF2 treatment (1.60±0.21 g, 10.88±0.86%/d, 91.67±1.53%), significantly different from control (0.99±0.09 g, 7.72±0.63%/d, 47.00±5.00%) (p<0.05). Overall, this study suggested that the dietary supplementation of 1.5% fermented K. alvarezii can enhance the growth and survival of whiteleg shrimp during the nursery phase.

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Polysaccharides in Aquatic Disease Management

Cited by 11 publications

References 22 publications

Evaluation of marine algal ( Ulva spp./ Solieria spp.) extracts combined with organic acids in diets for olive flounder ( Paralichthys olivaceus )

Evaluation of marine algal ( Ulva spp./ Solieria spp.) extracts combined with organic acids in diets for olive flounder ( Paralichthys olivaceus )

Molecular properties of postbiotics and their role in controlling aquaculture diseases

The Effect of Feed Supplementation with Fermented Red Seaweed (Kappaphycus alvarezii) on Growth and Survival of White Shrimp (Litopenaeus vannamei) Post-Larvae Culture

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