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Turkish Journal of Fisheries and Aquatic Sciences 2017, Vol 17, Num, 1     (Pages: 91-100)

Determination of Some Hematological and Non-Specific Immune Defences, Oxidative Stress and Histopathological Status in Rainbow Trout (Oncorhynchus mykiss ) Fed Rosehip (Rosa canina) to Yersinia ruckeri

Aysel Şahan 1 ,Selçuk Duman 2 ,Sibel Özesen Çolak 3 ,Ercan Çinar 4 ,Ramazan Bilgin 5

1 University of Çukurova, Faculty of Fisheries, 01330, Sarıçam-Balcalı /Adana-Turkey
2 University of Çukurova, Vocational School of Imamoğlu, Fisheries Programme, Adana-Turkey
3 University of İstanbul, Faculty of Fisheries, 34470 Laleli / İstanbul-Turkey
4 University of Batman, Faculty of Arts and Sciences, West Raman 72100 / Batman-Turkey
5 University of Çukurova, Faculty of Arts and Sciences, Sarıçam-Balcalı /Adana-Turkey
DOI : 10.4194/1303-2712-v17_1_11 Viewed : 754 - Downloaded : 849 The effect of the Yersinia ruckeri infection in the different tissues of 225 rainbow trout (Oncorhynchus mykiss) fed with rosehip (Rosa canina) was researched by evaluating a range of factors such as hematological and histopathological findings, non-specific immune parameters, liver antioxidant parameters, and then determined mortality and relative percentage survival (RPS) rates.
The study comprises control groups (C+, C−) and rosehip experimental groups (REGs): R10 (10%), R20 (20%) and R30 (30%). Following the 50-day feeding period, the fish were infected with Y. ruckeri and then blood, liver, spleen and kidney samples were taken. RBC, WBC, Hb, Hct and RBC indices, non-specific immune parameters, NBT, phagocytic activity and leukocyte formulas all significantly increased in R20 compared to other groups. Antioxidant parameters SOD, CAT and GSH values increased in the R20 and R30 groups, and the lowest RPS value was detected in R30 at 26.31%, while it increased in the R20 group to 42.09%. R30 showed no significant hematological and immunological effects, however, the immune cells were suppressed. In this research, R20 was determined to be the ideal dose, taking into account both health indicators and hematological parameters, as a defense mechanism against Y. ruckeri, showing the best antibacterial and antioxidant effects.
Keywords : Antioxidant parameters, hematology, histopathology, immunostimulant, Oncorhynchus mykiss