Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniae
Olive flounders, Paralichthys olivaceus (mean weight 1,027 ± 65 g, mean length 44.03 ± 3.1 cm) were raised in bio-floc culture or seawater culture for 10 months. The P. olivaceus raised in bio-floc culture or seawater culture were inoculated at each S. iniae concentrations at 0, 3.36 × 106, 3.36 × 1...
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Elsevier
2025-06-01
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| Series: | Comparative Immunology Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2950311625000217 |
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| author | Saebom Sohn A-Hyun Jo Cheol Young Choi Ju-Chan Kang Jun-Hwan Kim |
| author_facet | Saebom Sohn A-Hyun Jo Cheol Young Choi Ju-Chan Kang Jun-Hwan Kim |
| author_sort | Saebom Sohn |
| collection | DOAJ |
| description | Olive flounders, Paralichthys olivaceus (mean weight 1,027 ± 65 g, mean length 44.03 ± 3.1 cm) were raised in bio-floc culture or seawater culture for 10 months. The P. olivaceus raised in bio-floc culture or seawater culture were inoculated at each S. iniae concentrations at 0, 3.36 × 106, 3.36 × 107, 3.36 × 108, and 3.36 × 109 CFU/g fish for 96 h. In antioxidant responses, SOD, CAT and GST activities were significantly increased, whereas GSH level was significantly decreased, with more pronounced changes observed in the seawater culture group. In stress indicators, HSP 70 and cortisol levels were significantly increased in both groups. In immune responses, lysozyme activity and Ig M levels were significantly decreased, with greater reductions in the seawater culture group compared to the bio-floc culture group. These results indicate that S. iniae infection has significant negative effects on antioxidant responses, stress indicators, and immune responses in P. olivaceus, and that these effects are more severe in fish raised in seawater culture than those in bio-floc culture. |
| format | Article |
| id | doaj-art-688fea3758e541d8afd90f43d352149f |
| institution | Kabale University |
| issn | 2950-3116 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Comparative Immunology Reports |
| spelling | doaj-art-688fea3758e541d8afd90f43d352149f2025-08-20T03:45:44ZengElsevierComparative Immunology Reports2950-31162025-06-01820021510.1016/j.cirep.2025.200215Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniaeSaebom Sohn0A-Hyun Jo1Cheol Young Choi2Ju-Chan Kang3Jun-Hwan Kim4General Service Division, Regional Office of National Fishery Products Quality Management Service, Busan 49111, South KoreaDepartment of Marine Life Science, Jeju National University, Jeju 63243, Republic of KoreaDivision of Marine BioScience, National Korea Maritime and Ocean University, Busan 49112, Republic of Korea; Corresponding authors.Department of Aquatic Life Medicine, Pukyong National University, Busan, South Korea; Corresponding authors.Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea; Department of Aquatic Life Medicine, College of Ocean Sciences, Jeju National University, Jeju 63243, South Korea; Corresponding authors.Olive flounders, Paralichthys olivaceus (mean weight 1,027 ± 65 g, mean length 44.03 ± 3.1 cm) were raised in bio-floc culture or seawater culture for 10 months. The P. olivaceus raised in bio-floc culture or seawater culture were inoculated at each S. iniae concentrations at 0, 3.36 × 106, 3.36 × 107, 3.36 × 108, and 3.36 × 109 CFU/g fish for 96 h. In antioxidant responses, SOD, CAT and GST activities were significantly increased, whereas GSH level was significantly decreased, with more pronounced changes observed in the seawater culture group. In stress indicators, HSP 70 and cortisol levels were significantly increased in both groups. In immune responses, lysozyme activity and Ig M levels were significantly decreased, with greater reductions in the seawater culture group compared to the bio-floc culture group. These results indicate that S. iniae infection has significant negative effects on antioxidant responses, stress indicators, and immune responses in P. olivaceus, and that these effects are more severe in fish raised in seawater culture than those in bio-floc culture.http://www.sciencedirect.com/science/article/pii/S2950311625000217Paralichthys olivaceusBio-floc cultureStreptococcus iniae challengeAntioxidant and immune responsesStress indicators |
| spellingShingle | Saebom Sohn A-Hyun Jo Cheol Young Choi Ju-Chan Kang Jun-Hwan Kim Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniae Comparative Immunology Reports Paralichthys olivaceus Bio-floc culture Streptococcus iniae challenge Antioxidant and immune responses Stress indicators |
| title | Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniae |
| title_full | Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniae |
| title_fullStr | Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniae |
| title_full_unstemmed | Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniae |
| title_short | Effects on antioxidant responses, stress indicator and immune responses of olive flounder, Paralichthys olivaceus raised in bio-floc culture or seawater culture challenged by Streptococcus iniae |
| title_sort | effects on antioxidant responses stress indicator and immune responses of olive flounder paralichthys olivaceus raised in bio floc culture or seawater culture challenged by streptococcus iniae |
| topic | Paralichthys olivaceus Bio-floc culture Streptococcus iniae challenge Antioxidant and immune responses Stress indicators |
| url | http://www.sciencedirect.com/science/article/pii/S2950311625000217 |
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