Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapia

Abstract The study aimed to explore the impact of dietary Pediastrum boryanum (PB) on growth performance, immune-physiological and transcriptome responses of Nile tilapia (Oreochromis niloticus). A 90-day trial using 1800 fish (17.00 ± 1.722 g) was allocated at random into 4 groups, three replicates...

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Main Authors: Raghad E. Soliman, Ahmed Ateya, Mohamed Abou-El-Atta, Wasseem Emam, Mohamed M. Abdel-Rahim, Ashraf I. G. Elhetawy, Ahmed E. Elshafey, Radi A. Mohamed
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Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-07498-1
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author Raghad E. Soliman
Ahmed Ateya
Mohamed Abou-El-Atta
Wasseem Emam
Mohamed M. Abdel-Rahim
Ashraf I. G. Elhetawy
Ahmed E. Elshafey
Radi A. Mohamed
author_facet Raghad E. Soliman
Ahmed Ateya
Mohamed Abou-El-Atta
Wasseem Emam
Mohamed M. Abdel-Rahim
Ashraf I. G. Elhetawy
Ahmed E. Elshafey
Radi A. Mohamed
author_sort Raghad E. Soliman
collection DOAJ
description Abstract The study aimed to explore the impact of dietary Pediastrum boryanum (PB) on growth performance, immune-physiological and transcriptome responses of Nile tilapia (Oreochromis niloticus). A 90-day trial using 1800 fish (17.00 ± 1.722 g) was allocated at random into 4 groups, three replicates each. The 4 groups received PB at 0 (G1), 1 (G2), 2 (G3), and 4 (G4) g/kg diet, respectively. The fish in Group G3 displayed a significant (p < 0.05) increase in final body weight, weight gain, specific growth rate, and final length when compared to the control group. In addition, red blood cell counts (RBCs), and neutrophils were significantly (p < 0.05) higher in G3. The groups’ biochemical parameters did not significantly differ from one another; nevertheless, significant (p < 0.05) variations in immunoglobulin M (IgM), phagocytic activity, and the values of the phagocytic index. The antioxidative activity of superoxide dismutase (SOD) and catalase differed significantly (p < 0.05) between groups, with the highest values seen in group G3. Moreover, there was a significant (p < 0.05) upgrade in the expression levels of GH, IGF-1, SOD, catalase, IL-6, IL-8, and PGAM2 genes in group G3. Additionally, G3 had the most typical liver structure, significantly (p < 0.05) increased villi length and width, and a thicker lamina propria in the intestine. In conclusion, dietary supplementation of PB boosted growth performance, blood and serum profile, morphometric evaluation of the liver and intestine, and expression of genes related to growth, antioxidant capacity, immunity, and energy metabolism in Nile tilapia.
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spelling doaj-art-70eac8d7418b439c97de89e4b4c084792025-08-20T04:01:35ZengNature PortfolioScientific Reports2045-23222025-07-0115111510.1038/s41598-025-07498-1Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapiaRaghad E. Soliman0Ahmed Ateya1Mohamed Abou-El-Atta2Wasseem Emam3Mohamed M. Abdel-Rahim4Ashraf I. G. Elhetawy5Ahmed E. Elshafey6Radi A. Mohamed7Department of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh UniversityDepartment of Development of Animal Wealth, Faculty of Veterinary Medicine, Mansoura UniversityDepartment of Fish Health and Management, Central Laboratory for Aquaculture ResearchEthical Seafood ResearchAquaculture Division, National Institute of Oceanography and Fisheries, NIOFAquaculture Division, National Institute of Oceanography and Fisheries, NIOFDepartment of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh UniversityDepartment of Aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh UniversityAbstract The study aimed to explore the impact of dietary Pediastrum boryanum (PB) on growth performance, immune-physiological and transcriptome responses of Nile tilapia (Oreochromis niloticus). A 90-day trial using 1800 fish (17.00 ± 1.722 g) was allocated at random into 4 groups, three replicates each. The 4 groups received PB at 0 (G1), 1 (G2), 2 (G3), and 4 (G4) g/kg diet, respectively. The fish in Group G3 displayed a significant (p < 0.05) increase in final body weight, weight gain, specific growth rate, and final length when compared to the control group. In addition, red blood cell counts (RBCs), and neutrophils were significantly (p < 0.05) higher in G3. The groups’ biochemical parameters did not significantly differ from one another; nevertheless, significant (p < 0.05) variations in immunoglobulin M (IgM), phagocytic activity, and the values of the phagocytic index. The antioxidative activity of superoxide dismutase (SOD) and catalase differed significantly (p < 0.05) between groups, with the highest values seen in group G3. Moreover, there was a significant (p < 0.05) upgrade in the expression levels of GH, IGF-1, SOD, catalase, IL-6, IL-8, and PGAM2 genes in group G3. Additionally, G3 had the most typical liver structure, significantly (p < 0.05) increased villi length and width, and a thicker lamina propria in the intestine. In conclusion, dietary supplementation of PB boosted growth performance, blood and serum profile, morphometric evaluation of the liver and intestine, and expression of genes related to growth, antioxidant capacity, immunity, and energy metabolism in Nile tilapia.https://doi.org/10.1038/s41598-025-07498-1MicroalgaePediastrum boryanumNile tilapiaImmunityTranscriptomic response
spellingShingle Raghad E. Soliman
Ahmed Ateya
Mohamed Abou-El-Atta
Wasseem Emam
Mohamed M. Abdel-Rahim
Ashraf I. G. Elhetawy
Ahmed E. Elshafey
Radi A. Mohamed
Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapia
Scientific Reports
Microalgae
Pediastrum boryanum
Nile tilapia
Immunity
Transcriptomic response
title Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapia
title_full Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapia
title_fullStr Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapia
title_full_unstemmed Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapia
title_short Microalgae Pediastrum boryanum enhances growth and modulates physiology and transcriptome in Nile tilapia
title_sort microalgae pediastrum boryanum enhances growth and modulates physiology and transcriptome in nile tilapia
topic Microalgae
Pediastrum boryanum
Nile tilapia
Immunity
Transcriptomic response
url https://doi.org/10.1038/s41598-025-07498-1
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