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

Brazilian Archives of Biology and Technology

Gabriela Tomas Jerônimo¹  Aline Brum¹  Santiago Benites De Pádua¹  Eduardo Luiz Tavares Gonçalves¹  Robson Soares Capecci¹  Márcia Mayumi Ishikawa¹  Maurício Laterça Martins¹ 

关键词: culture system;    hematology;    seasonality;    Siluriformes;   

DOI  :  10.1590/S1516-8913201400180

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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