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Immunomodulatory effect of sodium alginate enriched diet in kelp grouper Epinephelus brneus against Streptococcus iniae.
Fish Shellfish Immunol. 2011 Feb; 30(2):543-9.FS

Abstract

The effect of diets containing sodium alginate at 0, 0.5, 1.0, and 2.0 g kg⁻¹ following challenge with Streptococcus iniae in kelp grouper Epinephelus bruneus were assessed with reference to survival rate and innate immune parameters such as alternative complement, lysozyme, natural haemagglutination, respiratory burst, superoxide dismutase, and phagocytic activities on week 1, 2, and 4. Fish fed with sodium alginate containing diet at 1.0 and 2.0 g kg⁻¹ after being challenged with S. iniae had higher survival rates of 75% and 60%, respectively than those fed with control diet (0 g kg⁻¹). With any enriched diet the percentage of macrophages significantly decreased from week 1-4, while the percentage of neutrophils and lymphocytes significantly increased. The alternate complement activity, natural haemagglutination, and phagocytic activities of infected fish fed with sodium alginate containing diet at 1.0 g kg⁻¹ on week 2 and 1.0 and 2.0 g kg⁻¹ diets on week 4 were significantly higher when compared to the control. The lysozyme, respiratory bursts, and superoxide dismutase activities of fish fed with enriched diets at 1.0 and 2.0 g kg⁻¹ were significantly increased on week 2 and 4. We therefore recommend that at 1.0 or 2.0 g kg⁻¹ dietary administration of sodium alginate can enhance innate immunity and disease resistance in kelp grouper against S. iniae.

Authors+Show Affiliations

Department of Aquatic Biomedical Sciences, School of Marine Biomedical Sciences, College of Ocean Sciences & Marine and Environmental Research Institute, Jeju National University, Jeju 690-756, South Korea. rhari123@yahoo.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21130885

Citation

Harikrishnan, Ramasamy, et al. "Immunomodulatory Effect of Sodium Alginate Enriched Diet in Kelp Grouper Epinephelus Brneus Against Streptococcus Iniae." Fish & Shellfish Immunology, vol. 30, no. 2, 2011, pp. 543-9.
Harikrishnan R, Kim MC, Kim JS, et al. Immunomodulatory effect of sodium alginate enriched diet in kelp grouper Epinephelus brneus against Streptococcus iniae. Fish Shellfish Immunol. 2011;30(2):543-9.
Harikrishnan, R., Kim, M. C., Kim, J. S., Han, Y. J., Jang, I. S., Balasundaram, C., & Heo, M. S. (2011). Immunomodulatory effect of sodium alginate enriched diet in kelp grouper Epinephelus brneus against Streptococcus iniae. Fish & Shellfish Immunology, 30(2), 543-9. https://doi.org/10.1016/j.fsi.2010.11.023
Harikrishnan R, et al. Immunomodulatory Effect of Sodium Alginate Enriched Diet in Kelp Grouper Epinephelus Brneus Against Streptococcus Iniae. Fish Shellfish Immunol. 2011;30(2):543-9. PubMed PMID: 21130885.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Immunomodulatory effect of sodium alginate enriched diet in kelp grouper Epinephelus brneus against Streptococcus iniae. AU - Harikrishnan,Ramasamy, AU - Kim,Man-Chul, AU - Kim,Ju-Sang, AU - Han,Yong-Jae, AU - Jang,Ik-Soo, AU - Balasundaram,Chellam, AU - Heo,Moon-Soo, Y1 - 2010/12/03/ PY - 2010/09/01/received PY - 2010/10/30/revised PY - 2010/11/28/accepted PY - 2010/12/7/entrez PY - 2010/12/7/pubmed PY - 2011/5/19/medline SP - 543 EP - 9 JF - Fish & shellfish immunology JO - Fish Shellfish Immunol VL - 30 IS - 2 N2 - The effect of diets containing sodium alginate at 0, 0.5, 1.0, and 2.0 g kg⁻¹ following challenge with Streptococcus iniae in kelp grouper Epinephelus bruneus were assessed with reference to survival rate and innate immune parameters such as alternative complement, lysozyme, natural haemagglutination, respiratory burst, superoxide dismutase, and phagocytic activities on week 1, 2, and 4. Fish fed with sodium alginate containing diet at 1.0 and 2.0 g kg⁻¹ after being challenged with S. iniae had higher survival rates of 75% and 60%, respectively than those fed with control diet (0 g kg⁻¹). With any enriched diet the percentage of macrophages significantly decreased from week 1-4, while the percentage of neutrophils and lymphocytes significantly increased. The alternate complement activity, natural haemagglutination, and phagocytic activities of infected fish fed with sodium alginate containing diet at 1.0 g kg⁻¹ on week 2 and 1.0 and 2.0 g kg⁻¹ diets on week 4 were significantly higher when compared to the control. The lysozyme, respiratory bursts, and superoxide dismutase activities of fish fed with enriched diets at 1.0 and 2.0 g kg⁻¹ were significantly increased on week 2 and 4. We therefore recommend that at 1.0 or 2.0 g kg⁻¹ dietary administration of sodium alginate can enhance innate immunity and disease resistance in kelp grouper against S. iniae. SN - 1095-9947 UR - https://www.unboundmedicine.com/medline/citation/21130885/Immunomodulatory_effect_of_sodium_alginate_enriched_diet_in_kelp_grouper_Epinephelus_brneus_against_Streptococcus_iniae_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1050-4648(10)00365-7 DB - PRIME DP - Unbound Medicine ER -