Journal
FISH & SHELLFISH IMMUNOLOGY
Volume 106, Issue -, Pages 675-684Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fsi.2020.07.040
Keywords
Labeo rohita; Aeromonas sorbia; Dried lemon peel; Antioxidant; Innate-adaptive immune response
Funding
- Chiang Mai University
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The effect of diet enriched with dried lemon (Citrus limon) peel was fed to Labeo rohita at three different levels (0, 1, 2.5, and 5 g kg(-1)) for a period of 60 days; the impact of the diet on the hematology, antioxidant activity and immunological reaction and gene expression against Aeromonas sorbia is reported. In both un-challenged and challenged groups treated with 2.5 g and 5 g kg(-1) dried lemon peel diets, the enhanced significant changes are: the weight gain and specific growth rate, white blood cell and total protein content, the antioxidants: superoxide dismutase, catalase, glutathione peroxidase, and glutathione activities, the respiratory burst, alternative complement pathway, complement C3, and total immunoglobulin M levels. Similarly, the heat shock protein-70 and -90, superoxide dismutase, glutathione peroxidase, glutathione, interleukin-1 beta and 8, tumor necrosis factor alpha, inducible nitric oxide synthase, transforming growth factor beta, and immunoglobulin M were upregulated significantly. Any dried lemon peel enriched diet increased the phagocytic and lysozyme activities significantly in both groups. In the un-challenged group treated with 0 g kg(-1) diet or in both groups treated with 2.5 g kg(-1) diet the SR was 100%. These results indicate that in both un-challenged and challenged-treated groups the 2.5 and 5 g kg(-1) dried lemon peel enriched diets positively modulate growth rate, physiology, and antioxidant status, innate-adaptive immune response as well as antioxidant and immune related gene expression in L. rohita against A. sorbia.
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