Role of dietary seaweed supplementation on growth performance, digestive capacity and immune and stress responsiveness in European seabass ( Dicentrarchus labrax )

Peixoto, Maria João; Salas-Leiton, Emilio; Pereira, Luís F.; Queiróz, Augusto César de; Magalhães, Fernando Augusto Cintra; Pereira, Rui; Abreu, Helena; Reis, Pedro A.; Gonçalves, José F.; Ozório, Rodrigo O. A.

doi:10.1016/j.aqrep.2016.03.005

Cited by 104 publications

(63 citation statements)

References 63 publications

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“…In this study, seabass growth was not influenced by dietary supplementation. This is consistent with results observed by Peixoto et al (2016b) and Bagni et al (2005), where no growth improvement was detected in European seabass fed diets supplemented with immunostimulants (algal extract with alginic acid and a yeast extract with b-glucans) at the same level of supplementation. Similarly, 5% Ulva sp.…”

Section: Discussionsupporting

confidence: 92%

“…Results from present study indicate that dietary seaweed supplementation had no influence on these oxidative stress biomarkers, which has also been observed by Peixoto et al (2016b). However, the differences observed are tightly associated with temperature and salinity oscillations which is well described by several works (Loro et al 2012;Madeira et al 2013;Vinagre et al 2012).…”

Section: Discussionsupporting

confidence: 83%

“…Seaweeds have been previously studied as potential immunostimulants for many fish species including European seabass (Peixoto et al 2016b), Nile tilapia (Güroy et al 2007), rainbow trout (Güroy et al 2013), and red sea bream (Mustafa and Nakagawa 1995). However, their effect as immunostimulants under environmental oscillations is yet to be accessed.…”

Section: Discussionmentioning

confidence: 99%

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Effect of dietary seaweed supplementation on growth performance, antioxidant and immune responses in European seabass (Dicentrarchus labrax) subjected to rearing temperature and salinity oscillations

et al. 2018

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The current study evaluated the effects of dietary seaweed supplementation in European seabass juveniles (Dicentrarchus labrax) subjected to rearing temperature and salinity oscillations, simulating natural variations in pond aquaculture conditions. Two experimental diets where formulated: a control diet (CTRL) with no supplementation and one supplemented with 7.5% seaweed mix (SW 2.5% Fucus sp., 2.5% Gracilaria sp. and 2.5% Ulva sp.). Seabass from both dietary groups (40.7 g initial body weight) was subjected to either combined salinity and temperature oscillations, or to fixed conditions. Growth performance, innate immune, and oxidative stress responses were evaluated. Results showed that seaweed supplementation had no significant effect on the analyzed parameters. However, environmental oscillations revealed significant effects on growth performance and oxidative stress response. Fish subjected to salinity and temperature oscillations had a significantly lower weight gain and daily growth index than those subjected to fixed conditions, regardless of dietary treatment. Total glutathione, oxidized glutathione, and catalase increased in fish subjected to oscillatory conditions. Lysozyme and peroxidase were not influenced by either diet or environmental conditions. In conclusion, this particular dietary seaweed mix supplementation did not mitigate the negative effects of environmental oscillations on growth performance and innate immune responses in European seabass.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

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Effect of dietary seaweed supplementation on growth performance, antioxidant and immune responses in European seabass (Dicentrarchus labrax) subjected to rearing temperature and salinity oscillations

et al. 2018

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“…On the contrary,Peixoto et al (2016) reported that incorporation of Ulva spp. In this sense, it is plausible that Gracilaria influence over lipase activity was due to a phospholipid increment.…”

mentioning

confidence: 96%

“…In this sense, it is plausible that Gracilaria influence over lipase activity was due to a phospholipid increment. On the contrary,Peixoto et al (2016) reported that incorporation of Ulva spp. negatively affected lipase activity in D. labrax.…”

mentioning

confidence: 96%

Antioxidant-related parameters, digestive enzyme activity and intestinal morphology in rainbow trout (Oncorhynchus mykiss) fry fed graded levels of red seaweed,Gracilaria pygmaea

Sotoudeh

Mardani

2017

Aquacult Nutr

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This study was conducted to investigate the effects of dietary red seaweed, Gracilaria pygmaea level on growth, antioxidant-related parameters, digestive enzyme activity and intestinal morphology of rainbow trout (Oncorhynchus mykiss) fry. Five isocaloric and isonitrogenous diets were formulated to contain four G. pygmaea levels (30 (GL-30), 60 (GL-60), 90 (GL-90) and 120 g/kg (GL-120)), and a control diet was used, without inclusion of seaweed. Results of the feeding trial indicated that final body (FBW: 2.8-3.5 g) and specific growth rate (SGR: 4.8-5.2) were significantly improved when 60 g/kg G. pygmaea was supplemented in the diets. However, there was a significant reduction (p < .05) of final body weight (FBW) and specific growth rate (SGR) in fish fed 120 g/kg G. pygmaea. Protease activity was significantly lower in fish fed GL-120 diet when compared to GL-30 or control (p < .05). Lipase was significantly affected by dietary seaweed regardless its level of supplementation (p < .05). The inclusion of the Gracilaria in the diet led to evident changes in the fish antioxidant status with significant reduction of superoxide dismutase, glutathione peroxidase activity and lipid peroxidation products.The histological study demonstrated that all groups of fish displayed normal morphology of anterior intestine and pyloric caeca. Villi absorptive area in the anterior intestine of treatment groups GL-90 and GL-120 significantly decreased (p < .05). Overall, the results obtained in this study indicate that dietary G. pygmaea supplementation up to 90 g/kg improves growth performance in rainbow trout fry without compromising antioxidant responses and digestive function. K E Y W O R D Santioxidant status, digestive enzyme, Gracilaria pygmaea, rainbow trout, seaweed

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Seaweed Proteins and Applications in Animal Feed

García‐Vaquero

2018

Novel Proteins for Food, Pharmaceuticals and Agriculture

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Role of dietary seaweed supplementation on growth performance, digestive capacity and immune and stress responsiveness in European seabass ( Dicentrarchus labrax )

Cited by 104 publications

References 63 publications

Effect of dietary seaweed supplementation on growth performance, antioxidant and immune responses in European seabass (Dicentrarchus labrax) subjected to rearing temperature and salinity oscillations

Effect of dietary seaweed supplementation on growth performance, antioxidant and immune responses in European seabass (Dicentrarchus labrax) subjected to rearing temperature and salinity oscillations

Antioxidant-related parameters, digestive enzyme activity and intestinal morphology in rainbow trout (Oncorhynchus mykiss) fry fed graded levels of red seaweed,Gracilaria pygmaea

Seaweed Proteins and Applications in Animal Feed

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