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Hematological parameters of three freshwater stingray species (chondrichthyes: Potamotrygonidae) in the middle Rio Negro, Amazonas state
7th World Hematologists Congress
May 08-09, 2017 Barcelona, Spain

Adriano Teixeira de Oliveira

Instituto Federal de Educação, Ciência e Tecnologia do Amazonas, Brazil

Posters & Accepted Abstracts: J Blood Disord Transfus


This paper aimed to study and compare the hematology of newborns, young, subadults, adult males, adult females and pregnant females of Potamotrygon wallacei (cururu stingray), Potamotrygon motoro and Paratrygon aiereba. Newborn cururu stingrays had lower red blood parameters than those of other development stages. Thrombograms and leukograms showed a conservative pattern between development stage, sexual dimorphism and pregnancy. In P. motoro and P. aiereba, variables relating to red blood parameters, biochemistry and leukograms showed little variation between the species�?? biological characteristics, thus showing that these variables are not good criteria for differentiating them within the same species. In conclusion, the development stage is an important factor for differentiating hematological properties in the cururu stingray, while this has not been observed in P. motoro and P. aiereba stingrays.

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