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Dietary olive leaf (Olea europea L.) extract alters some immune gene expression levels and disease resistance to Yersinia ruckeri infection in rainbow trout Oncorhynchus mykiss.
Fish Shellfish Immunol. 2018 Aug; 79:28-33.FS

Abstract

The aim for the present study was to investigate the effects of olive leaf (Olea europea L.) extract (OLE) on the control of Yersinia ruckeri infection in rainbow (Oncorhynchus mykiss) trout and to assess the impact on the expression of immune-related genes in the spleen and serum biochemical parameters of rainbow trout. Five experimental diets were prepared by adding 0.0%, 0.1%, 0.25%, 0.50% and 1.0% of OLE. Each diet was fed to triplicate groups of fish (mean body weight 51.22 ± 3.04 g) twice a day (at 09:00 and 17:00 h) for 60 days. The dietary supplementation of OLE did not affect growth performance and feed utilization (P > 0.05). Major changes due to graded levels of OLE in the diets were observed in blood biochemical parameters (P < 0.05). TNFα, IL1-β and IL-8 gene expressions were significanlty up-regulated in OLE 0.1% group compared with others (P < 0.05). Also, diet supplemented with OLE reduced mortality in rainbow trout fed with OLE 0.1% added diet. Present study suggests that OLE especially at 0.1% added feed may effectivelly enhance the serum biochemical parameters, survival rate and immune gene expression in rainbow trout.

Authors+Show Affiliations

Mugla Sıtkı Kocman University, Faculty of Fisheries, Department of Aquaculture, 48000 Muğla, Turkey. Electronic address: eozdemir@mu.edu.tr.Çanakkale Onsekiz Mart University, Bayramiç Vocational School, Department of Forestry, Çanakkale, Turkey.Çanakkale Onsekiz Mart University, Marine Science and Technlogy Faculty, Department of Aquaculture, Çanakkale, Turkey.Bartın University, Faculty of Science, Department of Molecular Biology and Genetics, Turkey.Çanakkale Onsekiz Mart University, Marine Science and Technlogy Faculty, Department of Aquaculture, Çanakkale, Turkey.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29733961

Citation

Baba, Esin, et al. "Dietary Olive Leaf (Olea Europea L.) Extract Alters some Immune Gene Expression Levels and Disease Resistance to Yersinia Ruckeri Infection in Rainbow Trout Oncorhynchus Mykiss." Fish & Shellfish Immunology, vol. 79, 2018, pp. 28-33.
Baba E, Acar Ü, Yılmaz S, et al. Dietary olive leaf (Olea europea L.) extract alters some immune gene expression levels and disease resistance to Yersinia ruckeri infection in rainbow trout Oncorhynchus mykiss. Fish Shellfish Immunol. 2018;79:28-33.
Baba, E., Acar, Ü., Yılmaz, S., Zemheri, F., & Ergün, S. (2018). Dietary olive leaf (Olea europea L.) extract alters some immune gene expression levels and disease resistance to Yersinia ruckeri infection in rainbow trout Oncorhynchus mykiss. Fish & Shellfish Immunology, 79, 28-33. https://doi.org/10.1016/j.fsi.2018.04.063
Baba E, et al. Dietary Olive Leaf (Olea Europea L.) Extract Alters some Immune Gene Expression Levels and Disease Resistance to Yersinia Ruckeri Infection in Rainbow Trout Oncorhynchus Mykiss. Fish Shellfish Immunol. 2018;79:28-33. PubMed PMID: 29733961.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary olive leaf (Olea europea L.) extract alters some immune gene expression levels and disease resistance to Yersinia ruckeri infection in rainbow trout Oncorhynchus mykiss. AU - Baba,Esin, AU - Acar,Ümit, AU - Yılmaz,Sevdan, AU - Zemheri,Fahriye, AU - Ergün,Sebahattin, Y1 - 2018/05/05/ PY - 2018/02/05/received PY - 2018/04/25/revised PY - 2018/04/28/accepted PY - 2018/5/8/pubmed PY - 2018/10/3/medline PY - 2018/5/8/entrez KW - Disease resistance KW - Gene expression KW - Herbal extract KW - Olive lef extract KW - Rainbow trout SP - 28 EP - 33 JF - Fish & shellfish immunology JO - Fish Shellfish Immunol VL - 79 N2 - The aim for the present study was to investigate the effects of olive leaf (Olea europea L.) extract (OLE) on the control of Yersinia ruckeri infection in rainbow (Oncorhynchus mykiss) trout and to assess the impact on the expression of immune-related genes in the spleen and serum biochemical parameters of rainbow trout. Five experimental diets were prepared by adding 0.0%, 0.1%, 0.25%, 0.50% and 1.0% of OLE. Each diet was fed to triplicate groups of fish (mean body weight 51.22 ± 3.04 g) twice a day (at 09:00 and 17:00 h) for 60 days. The dietary supplementation of OLE did not affect growth performance and feed utilization (P > 0.05). Major changes due to graded levels of OLE in the diets were observed in blood biochemical parameters (P < 0.05). TNFα, IL1-β and IL-8 gene expressions were significanlty up-regulated in OLE 0.1% group compared with others (P < 0.05). Also, diet supplemented with OLE reduced mortality in rainbow trout fed with OLE 0.1% added diet. Present study suggests that OLE especially at 0.1% added feed may effectivelly enhance the serum biochemical parameters, survival rate and immune gene expression in rainbow trout. SN - 1095-9947 UR - https://www.unboundmedicine.com/medline/citation/29733961/Dietary_olive_leaf__Olea_europea_L___extract_alters_some_immune_gene_expression_levels_and_disease_resistance_to_Yersinia_ruckeri_infection_in_rainbow_trout_Oncorhynchus_mykiss_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1050-4648(18)30255-9 DB - PRIME DP - Unbound Medicine ER -