Abstract
Blood from Tilapia zillii exposed to three sublethal concentrations of Cd (10.62, 17.70 and 24.78 mg L−1) for 24, 48, 72 and 96 hr was analyzed to identify and evaluate changes in erythrocyte count (RBC), hematocrit (Ht), hemoglobin (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), erythrocyte sedimentation rate (ESR), leucocyte count (WBC), differential leucocyte counts, total protein, glucose and lactic acid. Hematological and physiological changes attributable to Cd poisoning were observed. Fish showed obvious signs of stress at 17.70 and 24.78 mg L−1 Cd. Clear time related effects of Cd on the biochemical factors were recorded. The severe stress conditions caused by Cd may be responsible for the hematological and physiological changes in blood.
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Ghazaly, K.S. Hematological and physiological responses to sublethal concentrations of cadmium in a freshwater teleost, Tilapia zillii. Water Air Soil Pollut 64, 551–559 (1992). https://doi.org/10.1007/BF00483365
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DOI: https://doi.org/10.1007/BF00483365