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Haematological Parameters of the Hybrid Surubim (Pseudoplatystoma reticulatum x P. corruscans) farmed in Brazil

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      Abstract

      This study evaluated the haematological parameters of the hybrid surubim (Pseudoplatystoma corruscans x P. reticulatum) farmed in intensive and semi intensive system. A total of 240 fish were examined, 120 from fish farm and 120 from a semi-intensive for comparison between the hot and cold season. The water quality was weekly measured to evaluate the influence of environmental conditions on the haematology. Fish from intensive system showed hematocrit and white blood cell count (WBC) higher in hot season while the total plasmatic protein, hemoglobin concentration, mean corpuscular hemoglobin concentration (MCHC) and mean corpuscular volume (MCV) were higher in cold season. In fish from semi intensive system, the red blood cells count (RBC) and total thrombocyte number was higher in hot season while the MCHC and MCV were higher in cold season. There was no alterations in the numbers of lymphocytes, neutrophils, basophils, eosinophils and PAS - positive granular leukocyte (PAS-LG). The results showed the influence of seasonality on the hematological parameters of the hybrid surubim kept under normal farming conditions. Regarding water quality, hot season was directly related to increased water temperature and decreased dissolved oxygen while the opposite was found in cold season.

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      Variations in the size and hemoglobin content of erythrocytes in the blood of various vertebrates

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        The standardizations of blood haemoglobin determinations

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          Variations in the size and hemoglobin content of erythrocytes in the blood of various vertebrates

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            Author and article information

            Affiliations
            [1 ] Universidade Federal de Santa Catarina Brazil
            [2 ] Secretaria Municipal de Saúde de São José do Rio Preto Brazil
            [3 ] Embrapa Meio Ambiente Brazil
            Contributors
            Role: ND
            Role: ND
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            Journal
            babt
            Brazilian Archives of Biology and Technology
            Braz. arch. biol. technol.
            Instituto de Tecnologia do Paraná - Tecpar (Curitiba )
            1678-4324
            April 2015
            : 58
            : 2
            : 254-261
            S1516-89132015000200254
            10.1590/S1516-8913201400180

            http://creativecommons.org/licenses/by/4.0/

            Product
            Product Information: SciELO Brazil
            Categories
            BIOLOGY

            General life sciences

            Siluriformes, culture system, seasonality, hematology

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