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:: Volume 3, Issue 1 (6-2015) ::
JAIR 2015, 3(1): 53-64 Back to browse issues page
Long time exposure effects of sub- lethal ::::union::::ized ammonia concentrations on growth and hematologic indices of Caspian roach, Rutilus caspius (Yakovlev, 1870) fingerlings
Mohammad Mazandarani * , Mohammad Sodagar , Hamideh Zakariaii
Abstract:   (5001 Views)

Ammonia accumulation in the earthen ponds is unavoidable and is considered as one of the serious problems of aquaculture. In this study susceptibility to chronic exposure of sub lethal ::::::union::::::ized ammonia (NH3) in Caspian roachwas investigated. In this regard, two treatment groups and one control group (with three replicates for each one) were considered. Fish of treatment groups were exposed to 0.2 and 0.02 mg/l ::::::union::::::ized ammonia (NH3),respectively during one month rearing period while no ammonia exposure was done in fish of control group. According to the results, most growth factors in theexposed fish to 0.2 mg/l ::::::union::::::ized ammonia were significantly lower compared to both control group and theexposed fish to 0.02 mg/l ammonia (P&le0.05). In hematology study, hemoglobin, hematocrit, MCH and MCHC counts for theexposed fish to 0.2 mg/l were recorded lower compared to fish of  both control and the exposed fish to 0.02 mg/l ammonia. However, blood MCV index were significantly recorded higherin theexposed fish to 0.2 mg/l ammonia compared to fish of other groups. According to the results of present study although chronic ammonia exposure at 0.2 mg/l concentration did not lead to mortality in Caspian roach, it can be considered as a harmful dosage for growth and hematologic indices in this fish. This is while long-time exposure to 0.02 mg/l ::::::union::::::ized ammonia has no negative effect on growth and hematological indices in Caspian roach fingerlings

Keywords: R. caspicus, Earthen pond, Ammonia, Sub-lethal exposure
Full-Text [PDF 163 kb]   (1353 Downloads)    
Type of Study: Research | Subject: Special
Received: 2016/01/9 | Accepted: 2016/01/9 | Published: 2016/01/9
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Mazandarani M, Sodagar M, Zakariaii H. Long time exposure effects of sub- lethal ::::union::::ized ammonia concentrations on growth and hematologic indices of Caspian roach, Rutilus caspius (Yakovlev, 1870) fingerlings. JAIR 2015; 3 (1) :53-64
URL: http://jair.gonbad.ac.ir/article-1-301-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 3, Issue 1 (6-2015) Back to browse issues page
نشریه علمی پژوهشی پژوهشهای ماهی شناسی کاربردی Journal of Applied Ichthyological Research
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