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Vet Parasitol. 2012 Jun 8;187(1-2):147-56. doi: 10.1016/j.vetpar.2011.12.006. Epub 2011 Dec 19.

Pomegranate enriched diet enhances the hematology, innate immune response, and disease resistance in olive flounder against Philasterides dicentrarchi.

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Marine Applied Microbes and Aquatic Organism Disease Control Lab, Department of Aquatic Biomedical Sciences, School of Marine Biomedical Sciences & Marine and Environmental Research Institute, Jeju National University, Jeju 690-756, South Korea.


Olive flounder, Paralichythys olivaceus fed with pomegranate enriched diet and challenged with or without Philasterides dicentrarchi had a significantly higher white blood cell (WBC) count on weeks 2 and 4 than the infected group fed with non enriched diet (standard diet). Similarly the red blood cell (RBC) counts did not significantly change in control and treated fish on weeks 1 and 2. It was significantly increased in treated fish on week 2 when compared to the control. In both the groups the hemoglobin (Hb) and hematocrit (Ht) levels significantly increased on weeks 2 and 4. The mean corpuscular volume (MCV) did not significantly change at any time in both groups whereas mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) increased significantly on week 4 in the treated group. The leukocytes such as lymphocytes (Lym), monocytes (Mon), neutrophils (Neu), and biochemical parameters such as total protein (TP), glucose (GLU), and calcium (CAL) levels significantly increased in treated groups on week 2 or 4 as compared to the control. The scuticocidal activity and respiratory burst activity were significantly enhanced in treated groups with or without parasite on weeks 2-4. However, the serum lysozyme activity was significantly enhanced from weeks 1 to 4. The protective response in terms of cumulative mortality was low in groups fed with enriched diet against parasite when compared to control. Therefore, we suggest that pomegranate enriched diet following challenge with P. dicentrarchi restores the altered hematological and biochemical parameters, and improves the innate immune system in olive flounder against P. dicentrarchi.

[Indexed for MEDLINE]

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