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Toxic Effects of Cobalt Chloride on Hematological Factors of Common Carp (Cyprinus carpio)

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Abstract

In this study, we investigate the toxic effects of cobalt chloride on some hematological factors of the carp Cyprinus carpio, such as white blood cell count, red blood cell count, hemoglobin, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration. At first, LC50 of cobalt in C. carpio was measured during 96 h after exposure. Also, physicochemical parameters of water including pH, dissolved oxygen, viscosity, temperature, and conductivity were monitored, continuously. The results showed that LC50 values of cobalt in C. carpio were 327 and 328 mg/L in two replicates, respectively. Then, the changes in some hematological factors in the five treatment groups placed under concentration of 100, 200, 300, 400, and 500 mg/L cobalt were compared with the control group. Based on hematological tests conducted in this research, exposure of carp to 500- and 300-mg/L concentrations of cobalt in 48 h showed significant difference (p < 0.05) in white blood cell count. The concentration of 500 mg/L cobalt in 24 h showed a significant difference in the amount of hemoglobin, number of red blood cells, and hematocrit level as compared with the control group. The concentration of 100 mg/L cobalt in 48 h did not show a significant difference in comparison with the control group (p > 0.05). Also, the concentration of 500 mg/L cobalt in 24 h showed a significant difference in the amount of mean corpuscular volume and mean corpuscular hemoglobin as compared with the control group and other treatments. Also, the percentage of mean corpuscular hemoglobin concentration in a concentration of 200 mg/L cobalt in 24 h showed a significant difference as compared with the control group and other treatments.

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Author notes

  1. M. Shokrzadeh

    Present address: Department of Toxicology–Pharmacology, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran

Authors and Affiliations

  1. Mazandaran Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran

    S. S. Saeedi Saravi

  2. Science & Research Center, Islamic Azad University, P.O.BOX: 19585-181, Tehran, Iran

    S. Karami

  3. Science & Technology Faculty, Islamic Azad University, P.O.BOX: 19585-936, Tehran, Iran

    B. Karami

  4. Department of HSE, Shaheed Beheshti University of Medical Sciences, Tehran, Iran

    M. Shokrzadeh

Authors
  1. S. S. Saeedi Saravi
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  2. S. Karami
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  3. B. Karami
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  4. M. Shokrzadeh
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Correspondence to M. Shokrzadeh.

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Saeedi Saravi, S.S., Karami, S., Karami, B. et al. Toxic Effects of Cobalt Chloride on Hematological Factors of Common Carp (Cyprinus carpio). Biol Trace Elem Res 132, 144–152 (2009). https://doi.org/10.1007/s12011-009-8388-8

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  • DOI: https://doi.org/10.1007/s12011-009-8388-8

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