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Abstract

This study was conducted to investigate the effect of figwort on the growth and immunohematological parameters of common carp (14.20 ± 0.53 g). Four experimental diets were developed to feed fish for eight weeks: control, Figw10 (10 g/kg figwort), Figw20 (20 g/kg figwort), and Figw30 (30 g/kg figwort). The results showed that fish fed dietary Figw10 gained more weight (38.25 g) than control (P 3/mm3), hematocrit (35.82%), blood performance (14.63), total protein (1.96 g/dL), albumin (0.79 g/dL), globulin (1.17 g/dL), lymphocyte (70.53%), monocyte (3.03%), alternative hemolytic complement activity (ACH50) (147.76 u/mL), lysozyme (62.19 u/mL), and bactericidal activities (135.24) than the control group (P Aeromonas hydrophila, the Figw30 treatment had the highest survival ratio (61.76%) compared to the control with 26.46%. Further, after the challenge, fish fed dietary Figw30 had a higher value of immunoglobulin M (42.00 μg/mL), antibody titer (19.23), complement component 3 (296.39 μg/mL), and complement component 4 (97.91 μg/mL) when compared with those fed control diet (P optimum dosage for providing the best immune response was 30 g/kg in diet.

Item Type:	Article
Authors/Creators:	Hosseini, H and Pooyanmehr, M and Foroughi, A and Esmaeili, M and Ghiasi, F and Lorestany, R
Keywords:	feeding, growth, herbal medicine, hematology, immune system, lipid-lowering effect
Journal or Publication Title:	Fish and Shellfish Immunology
Publisher:	Academic Press Ltd Elsevier Science Ltd
ISSN:	1050-4648
DOI / ID Number:	https://doi.org/10.1016/j.fsi.2021.11.020
Copyright Information:	© 2021 Elsevier Ltd. All rights reserved.
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