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  • Title: Impact of grape pomace flour (GPF) on immunity and immune-antioxidant-anti-inflammatory genes expression in Labeo rohita against Flavobacterium columnaris.
    Author: Harikrishnan R, Devi G, Van Doan H, Balasundaram C, Esteban MÁ, Abdel-Tawwab M.
    Journal: Fish Shellfish Immunol; 2021 Apr; 111():69-82. PubMed ID: 33508472.
    Abstract:
    This study evaluates the effects of dietary inclusion of grape pomace flour (GPF) on growth, antioxidant, anti-inflammatory, innate-adaptive immunity, and immune genes expression in Labeo rohita against Flavobacterium columnaris. In both normal and challenged fish the growth rate, hematology and biochemical parameters significantly increased when fed with 200 and 300 mg GPF enriched diets; similarly the activities of antioxidants and innate-adaptive immune parameters, such as malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione (GSH), phagocytic (PC), respiratory burst (RB), alternative pathway complement (ACP), lysozyme (Lyz), and total immunoglobulin M (IgM) significantly increased in both groups. Similarly, the immune, antioxidant, and anti-inflammatory-related gene mRNA expression was significantly up-regulated in head kidney (HK) tissues. The challenged fish fed without GPF always exhibited lower values of all the studied parameters. The results indicate that both normal and challenged fish treated with 200 mg GPF inclusion diet had significantly enhanced growth rate, antioxidant status, and immune defense mechanisms than with 300 mg GPF diet in L. rohita against F. columnaris.
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