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Turkish Journal of Fisheries and Aquatic Sciences 2011, Vol 11, Num, 3     (Pages: 445-450)

Comparative Effect of Raw Fiber (Vitacel) and Alginic acid (Ergosan) on Growth Performance, Immunocompetent Cell Population and Plasma Lysozyme Content of Giant Sturgeon (Huso huso)

M. Heidarieh 1 ,M. Soltani 2 ,A.H. Tamimi 3 ,M.H. Toluei 4

1 Agricultural, Medical and Industrial Research School (AMIRS-NSTRI), Karaj, Iran
2 Aquatic Animal Health Departments, Faculty of Veterinary Medicine, University of Tehran, Iran
3 University of Applied Science and Technology, Tehran, Iran
4 Aquaculture section, Iran Fisheries, Bandare-Anzali, Gilan Province, Iran
DOI : 10.4194/1303-2712-v11_3_15 Viewed : 4172 - Downloaded : 3742 The imunnocompetent cell population size including lymphocyte, neutrophil and eosinophil populations, lysozyme activity in plasma and the growth performance were assessed in great sturgeon Huso huso after oral administration of Ergosan at 0.5% of the feed and Vitacel at 1.3% of the feed for 90 days. Sampling was performed on 15 and 90 days during feeding trial. Generally, a significant increase was seen in the lymphocyte count of fish received Ergosan compared to both Vitacel and control groups 90 days post-treatment (P<0.05). Interstingly, at the Neutrophil profile of fish fed Vitacel and Vitacel- Ergosan combination was observed significant increase on 90 days after trial (P<0.05). The number of eosinophils tended to be higher in Vitacel group (P<0.05) on day 90 and was significantly higher (P<0.05) than in Ergosan and control. Also, lysozyme activity in plasma of treatment fish by Ergosan and Vitacel was significantly higher than control group on 15 and 90 days post-treatment (P<0.05). In addition, the weight of fish fed diet containing Ergosan and/or Vitacel had a significant increase compared to control group on days 15 and 90 of trial (P<0.05). Keywords : Ergosan, Vitacel, Huso huso, Lysozyme, Growth performance