Role of dietary Laurencia obtusa in enhancing growth, blood indices, and hypoxia resistance of red tilapia (Oreochromis niloticus x O. mossambicus)

Salem, Mohamed El‐S.; Abdel‐Ghany, Heba M.; Almisherfi, Hebatollah M.

doi:10.1007/s10811-021-02484-2

Cited by 9 publications

(7 citation statements)

References 80 publications

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“…Moreover, thermal stress results in hypoxia or anoxia (Carvalho andFernandes 2006, Hedayati andTarkhani 2014), and this effect was reported in the present study. In turn, it was found that hypoxia increases the number of leukocytes, platelets, and neutrophils and reduces the number of lymphocytes in red tilapia (Salem et al, 2021). This may be linked to the elevated level of cortisol (Salem et al, 2021).…”

Section: Discussionmentioning

confidence: 95%

“…In turn, it was found that hypoxia increases the number of leukocytes, platelets, and neutrophils and reduces the number of lymphocytes in red tilapia (Salem et al, 2021). This may be linked to the elevated level of cortisol (Salem et al, 2021). Neutrophilia and lymphopenia were apparent after treatment with cortisol in carp (C. carpio L.) (Wojtaszek et al 2002).…”

Section: Discussionmentioning

confidence: 99%

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Effect of dietary curcumin or its nano-form on the growth, immunity, heat stress resistance and stress indicators of Nile tilapia (Oreochromis niloticus)

Abdel‐Ghany

El-Sisy

Salem

2022

Preprint

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This study evaluated the effects of dietary supplementation with free- or nano- curcumin on the growth performance, immune status and heat stress resistance of Nile tilapia (Oreochromis niloticus). Seven isonitrogenous (28% protein) and iso-caloric (445 Kcal/100g DM) diets were prepared. Six diets were supplemented with three levels of nano-curcumin (50 (CN50), 100 (CN100), 200 (CN200) mg kg− 1) or free curcumin (50 (C50), 100 (C100), 200 )C200) mg kg− 1), and the seventh diet was left without an additive (CON). Fish (13.54 ± 0.32 g) (mean ± SD) fed the experimental diets for 65 days. Following the feeding trial, the fish were exposed to an acute heat stress by gradually raising the water temperature from 25 to 40℃ within 3 h. Then, fish were exposed to 40℃ for 4 h. Results revealed the superiority of nano-curcumin over the free form in enhancing the growth performance (P ≤ 0.05), where the highest results were obtained at CN100 followed by CN200. Only the heat stress rather than the experimental diets increased the platelets, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), leukocytes and neutrophils counts, while lymphocytes decreased. The CN50 and CN100 groups showed lower activity of liver enzymes (Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST)) than the other treatments, while C200 gave the highest activity of these enzymes. The highest immunoglobulin (IgM) levels were detected in CN100, CN200, C100 and C200 followed by CN50. The C200 Group showed higher levels of complement C3 and C4 than the other treatments. The C50 and CON groups gave the lowest values of IgM, C3 and C4. Treatments of CN50 and CN100 efficiently eliminated cortisol levels compared to the other treatments. After the heat stress, ALT, AST, IgM, C3, C4, cortisol and glucose increased. Thus, nano-curcumin has a better ability than its free form to increase the resistance of Nile tilapia under the heat stress, induce innate immunity, eliminate the stress indicators and enhance growth performance with the best concentrations at 100 mg kg− 1.

show abstract

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Effect of dietary curcumin or its nano-form on the growth, immunity, heat stress resistance and stress indicators of Nile tilapia (Oreochromis niloticus)

Abdel‐Ghany

El-Sisy

Salem

2022

Preprint

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show abstract

“…Moreover, thermal stress results in hypoxia or anoxia 70,71 , and this effect was reported in the present study. In turn, it was found that hypoxia increases the number of leukocytes, platelets, and neutrophils and reduces the number of lymphocytes in red tilapia 72 . This may be linked to the elevated level of cortisol 72 .…”

Section: Discussionmentioning

confidence: 98%

“…In turn, it was found that hypoxia increases the number of leukocytes, platelets, and neutrophils and reduces the number of lymphocytes in red tilapia 72 . This may be linked to the elevated level of cortisol 72 . Neutrophilia and lymphopenia were apparent after treatment with cortisol in carp (C. carpio L.) 73 .…”

Section: Discussionmentioning

confidence: 98%

A comparative study of effects of curcumin and its nanoparticles on the growth, immunity and heat stress resistance of Nile tilapia (Oreochromis niloticus)

Abdel‐Ghany

El-Sisy

Salem

2023

Sci Rep

Self Cite

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This study evaluated the effects of dietary supplementation with free- or nano-curcumin on the growth performance, immune status and heat stress resistance of Nile tilapia (Oreochromis niloticus). Seven isonitrogenous (28% protein) and isocaloric (445 kcal/100 g DM) diets were prepared. Six diets were supplemented with three levels of nano-curcumin (50 (CN50), 100 (CN100), 200 (CN200) mg kg−1 diet) or free-curcumin (50 (C50), 100 (C100), 200 (C200) mg kg−1 diet), and the control diet was left without an additive (CON). Fish (13.54 ± 0.32 g) (mean ± SD) fed the experimental diets for 65 days. Following the feeding trial, the fish were exposed to the acute heat stress by gradually raising the water temperature from 25 to 40 °C within 3 h. The fish were then exposed to 40 °C for 4 h. Results revealed the superiority of nano-curcumin over its free-form in enhancing the growth performance, with the highest results obtained at CN100, followed by CN200. Only heat stress, not the experimental diets, increased the platelets, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), leukocytes and neutrophils count, while lymphocytes decreased. The CN50 and CN100 groups showed lower activity of liver enzymes (alanine aminotransferase (ALT) and aspartate aminotransferase (AST)) than the other treatments, while C200 gave the highest activity of these enzymes. The highest immunoglobulin (IgM) levels were detected in CN100, CN200, C100 and C200, followed by CN50. The C200 group showed higher levels of complement 3 and complement 4 (C3 and C4, respectively) than the other treatments. The C50 and CON groups gave the lowest values of IgM, C3 and C4. Cortisol levels were significantly lower in the CN50 and CN100 groups compared to the other groups. After the heat stress, ALT, AST, IgM, C3, C4, cortisol and glucose increased. Thus, nano-curcumin is more effective than its free-form in enhancing the resistance to heat stress, inducing innate immunity, lowering the stress indicators and promoting growth performance of Nile tilapia with the best concentration at 100 mg kg−1 diet.

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“…Padina pavonica is a classified brown macroalgae that contributes significantly to the total productivity of marine environments . Red macroalga Laurencia obtusa produces secondary metabolites having medicinal properties, and U. rigida is a green macroalga that provides nutritional advantages while also assisting in the preservation of marine biodiversity.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Proteins Extracted from Ulva sp., Padina sp., and Laurencia sp. Macroalgae Using Green Technology: Effect of In Vitro Digestion on Antioxidant and ACE-I Inhibitory Activity

Şensu,

Ayar,

Okudan

et al. 2023

ACS Omega

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Role of dietary Laurencia obtusa in enhancing growth, blood indices, and hypoxia resistance of red tilapia (Oreochromis niloticus x O. mossambicus)

Cited by 9 publications

References 80 publications

Effect of dietary curcumin or its nano-form on the growth, immunity, heat stress resistance and stress indicators of Nile tilapia (Oreochromis niloticus)

Effect of dietary curcumin or its nano-form on the growth, immunity, heat stress resistance and stress indicators of Nile tilapia (Oreochromis niloticus)

A comparative study of effects of curcumin and its nanoparticles on the growth, immunity and heat stress resistance of Nile tilapia (Oreochromis niloticus)

Characterization of Proteins Extracted from Ulva sp., Padina sp., and Laurencia sp. Macroalgae Using Green Technology: Effect of In Vitro Digestion on Antioxidant and ACE-I Inhibitory Activity

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