A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challenge

This study evaluated the effects of the probiotic Lactobacillus plantarum (LAC-P) and powdered Panax ginseng extract (GINS) on the growth, immunity, and survival of Asian seabass (Lates calcarifer) following a Streptococcus iniae infection. Eight groups were tested: control, LAC-P (1 × 1010 CFU L. p...

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Main Authors: Xiaojie Hou, Jianfeng Zhang, Neda Behmagham, Hamed Ghafarifarsani
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Aquaculture Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2352513425000158
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author Xiaojie Hou
Jianfeng Zhang
Neda Behmagham
Hamed Ghafarifarsani
author_facet Xiaojie Hou
Jianfeng Zhang
Neda Behmagham
Hamed Ghafarifarsani
author_sort Xiaojie Hou
collection DOAJ
description This study evaluated the effects of the probiotic Lactobacillus plantarum (LAC-P) and powdered Panax ginseng extract (GINS) on the growth, immunity, and survival of Asian seabass (Lates calcarifer) following a Streptococcus iniae infection. Eight groups were tested: control, LAC-P (1 × 1010 CFU L. plantarum /100 g diet), varying doses of GINS (0.1 %, 0.5 %, 1 %), and combinations of LAC-P with these doses of GINS. All experiments were carried out in three replicates and fish (Mean weight: 25.3 ± 4.2 g) of all treatments fed for 60 days. After this feeding period, a challenge test was also done with Streptococcus iniae over 14 days. The growth performance and digestive enzyme activities (trypsin, chymotrypsin, lipase) significantly improved in fish supplemented with LAC-P and LAC-P + GINS (0.1–1 %) (P < 0.01). The treatment, LAC-P + GINS (1 %) showed highest performance, as a final weight, weight gain, specific growth rate and feed conversion ratio of 81.4 ± 4.1 g, 223.6 ± 7.3 %, 1.94 ± 0.07 % and 1.1 ± 0.02 respectively obtained for this treatment (P < 0.01). This treatment also showed highest digestive enzyme activities for trypsin (5.2 ± 0.11 U/mg protein), chymotrypsin (3.9 ± 0.15 U/mg protein) and lipase (2.12 ± 0.04 U/mg protein) (P < 0.01). The intestinal lactic acid bacteria with maximum load of 4.1 ± 0.5, 3.9 ± 0.5 and 3.6 ± 0.4 log CFU/g intestine at LAC-P + GINS treatments, increased, following the probiotic administration, while total bacterial count remained unchanged (P < 0.01). The antioxidant enzyme activities in blood significantly increased in response to LAC-P, GINS (0.5–1 %) and their combinations compared to control (P < 0.01). The highest activity of Superoxide dismutase (5.44 ± 0.62 U/mg), catalase (15.68 ± 1.04 U/mg) and glutathione peroxidase (14.5 ± 2.4 U/mg) was observed in LAC-P + GINS (1 %) treatment (P < 0.01). Also, LAC-P and GINS alone and their combinations enhanced total antioxidant capacity (T-AOC), with highest-value for fish of LAC-P + GINS (1 %) (0.4 ± 0.05 U/mg protein) and LAC-P + GINS (0.5 %) (0.34 ± 0.04 U/mg protein) (P < 0.01). The immune components of serum [total immunoglobulin (Ig), lysozyme (lyz), alternative complement activity (ACH50), myeloperoxidase (MPO), nitroblue tetrazolium (NBT), total protein] and mucus [protease, Ig, alkaline phosphatase (ALP), Lyz] were mostly elevated in fish supplemented with LAC-P, GINS (1 %) and LAC-P + GINS (0.1–1 %) (P < 0.01). The maximum elevations of immune components of serum (Ig: 6.5 ± 0.4 mg/ml, lyz: 180.6 ± 6.8 U/ml), ACH50: 60.2 ± 5.06 U/ml, MPO: 4.24 ± 0.19 OD at 450 nm, NBT: 0.4.6 ± 0.03 OD at 620 nm and total protein: 4.1 ± 0.22 g/dl) and mucus (protease: 16.2 ± 2.4 U/ml, alkaline phosphatase: 4.9 ± 0.3 U/ml, Ig: 2.37 ± 0.2 mg/ml, lyz: 101.4 ± 5.09 U/ml) mostly were for LAC-P + GINS (1 %) treatment (P < 0.01). Supplementation of fish with GINS alone or combined with LAC-P significantly mitigated oxidative stress, as malondialdehyde (MDA) levels decreased in these treatments (P < 0.01). The most reductions in MDA (17.3 ± 2.1 nmol/L) observed in the LAC-P + GINS (1 %) treatment (P < 0.01). After bacterial challenge, fish fed supplementation with GINS (0.5 %), GINS (1 %) and LAC-P + GINS (0.1–1 %) showed lower mortality rate (P < 0.01). LAC-P + GINS (1 %) treatment showed the lowest (35.2 ± 4.5 %) fish mortality (P < 0.01). In conclusion, fish supplemented with LAC-P and GINS, especially at 1 % level, showed significant improvements in growth, digestive enzyme activities, antioxidant enzyme levels, and immune responses. The combination of LAC-P and GINS (1 %) resulted in the lowest mortality rate and best overall performance, demonstrating their potential for enhancing fish immunity against the bacterial challenge.
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spelling doaj-art-1c013b8347a94f58b1b28aad0e6cc59f2025-02-06T05:12:22ZengElsevierAquaculture Reports2352-51342025-03-0140102629A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challengeXiaojie Hou0Jianfeng Zhang1Neda Behmagham2Hamed Ghafarifarsani3School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, ChinaGuizhou Valid Pharmaceutical Co., LTD., Guiyang 550016, China; Corresponding authors.Department of Biology, Faculty of Basic Science, Islamic Azad University, Central Tehran Branch, Tehran, IranDepartment of Animal Science, Chaharmahal and Bakhtiari Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Shahrekord, Iran; Corresponding authors.This study evaluated the effects of the probiotic Lactobacillus plantarum (LAC-P) and powdered Panax ginseng extract (GINS) on the growth, immunity, and survival of Asian seabass (Lates calcarifer) following a Streptococcus iniae infection. Eight groups were tested: control, LAC-P (1 × 1010 CFU L. plantarum /100 g diet), varying doses of GINS (0.1 %, 0.5 %, 1 %), and combinations of LAC-P with these doses of GINS. All experiments were carried out in three replicates and fish (Mean weight: 25.3 ± 4.2 g) of all treatments fed for 60 days. After this feeding period, a challenge test was also done with Streptococcus iniae over 14 days. The growth performance and digestive enzyme activities (trypsin, chymotrypsin, lipase) significantly improved in fish supplemented with LAC-P and LAC-P + GINS (0.1–1 %) (P < 0.01). The treatment, LAC-P + GINS (1 %) showed highest performance, as a final weight, weight gain, specific growth rate and feed conversion ratio of 81.4 ± 4.1 g, 223.6 ± 7.3 %, 1.94 ± 0.07 % and 1.1 ± 0.02 respectively obtained for this treatment (P < 0.01). This treatment also showed highest digestive enzyme activities for trypsin (5.2 ± 0.11 U/mg protein), chymotrypsin (3.9 ± 0.15 U/mg protein) and lipase (2.12 ± 0.04 U/mg protein) (P < 0.01). The intestinal lactic acid bacteria with maximum load of 4.1 ± 0.5, 3.9 ± 0.5 and 3.6 ± 0.4 log CFU/g intestine at LAC-P + GINS treatments, increased, following the probiotic administration, while total bacterial count remained unchanged (P < 0.01). The antioxidant enzyme activities in blood significantly increased in response to LAC-P, GINS (0.5–1 %) and their combinations compared to control (P < 0.01). The highest activity of Superoxide dismutase (5.44 ± 0.62 U/mg), catalase (15.68 ± 1.04 U/mg) and glutathione peroxidase (14.5 ± 2.4 U/mg) was observed in LAC-P + GINS (1 %) treatment (P < 0.01). Also, LAC-P and GINS alone and their combinations enhanced total antioxidant capacity (T-AOC), with highest-value for fish of LAC-P + GINS (1 %) (0.4 ± 0.05 U/mg protein) and LAC-P + GINS (0.5 %) (0.34 ± 0.04 U/mg protein) (P < 0.01). The immune components of serum [total immunoglobulin (Ig), lysozyme (lyz), alternative complement activity (ACH50), myeloperoxidase (MPO), nitroblue tetrazolium (NBT), total protein] and mucus [protease, Ig, alkaline phosphatase (ALP), Lyz] were mostly elevated in fish supplemented with LAC-P, GINS (1 %) and LAC-P + GINS (0.1–1 %) (P < 0.01). The maximum elevations of immune components of serum (Ig: 6.5 ± 0.4 mg/ml, lyz: 180.6 ± 6.8 U/ml), ACH50: 60.2 ± 5.06 U/ml, MPO: 4.24 ± 0.19 OD at 450 nm, NBT: 0.4.6 ± 0.03 OD at 620 nm and total protein: 4.1 ± 0.22 g/dl) and mucus (protease: 16.2 ± 2.4 U/ml, alkaline phosphatase: 4.9 ± 0.3 U/ml, Ig: 2.37 ± 0.2 mg/ml, lyz: 101.4 ± 5.09 U/ml) mostly were for LAC-P + GINS (1 %) treatment (P < 0.01). Supplementation of fish with GINS alone or combined with LAC-P significantly mitigated oxidative stress, as malondialdehyde (MDA) levels decreased in these treatments (P < 0.01). The most reductions in MDA (17.3 ± 2.1 nmol/L) observed in the LAC-P + GINS (1 %) treatment (P < 0.01). After bacterial challenge, fish fed supplementation with GINS (0.5 %), GINS (1 %) and LAC-P + GINS (0.1–1 %) showed lower mortality rate (P < 0.01). LAC-P + GINS (1 %) treatment showed the lowest (35.2 ± 4.5 %) fish mortality (P < 0.01). In conclusion, fish supplemented with LAC-P and GINS, especially at 1 % level, showed significant improvements in growth, digestive enzyme activities, antioxidant enzyme levels, and immune responses. The combination of LAC-P and GINS (1 %) resulted in the lowest mortality rate and best overall performance, demonstrating their potential for enhancing fish immunity against the bacterial challenge.http://www.sciencedirect.com/science/article/pii/S2352513425000158Fish immunityProbioticGinsengBacterial challenge
spellingShingle Xiaojie Hou
Jianfeng Zhang
Neda Behmagham
Hamed Ghafarifarsani
A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challenge
Aquaculture Reports
Fish immunity
Probiotic
Ginseng
Bacterial challenge
title A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challenge
title_full A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challenge
title_fullStr A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challenge
title_full_unstemmed A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challenge
title_short A combined use of Panax ginseng extract and the probiotic, Lactobacillus plantarum in the diet of Asian seabass, Lates calcarifer: Effects on growth, immunity and survival after bacterial challenge
title_sort combined use of panax ginseng extract and the probiotic lactobacillus plantarum in the diet of asian seabass lates calcarifer effects on growth immunity and survival after bacterial challenge
topic Fish immunity
Probiotic
Ginseng
Bacterial challenge
url http://www.sciencedirect.com/science/article/pii/S2352513425000158
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