The aim of paper was to study some blood and urea metabolic profile factors in nutria and analyze them in order to defne the referential values. Tests were carried out at University of Agriculture, Cracow in 2002 using 9 young Standard nutrias (below 1 year) and 8 older ones. Blood and urea were taken during routine animal’s slaughter for skins. Analyses were performed in Medical Laboratory Center “Diagnostyka” in Cracow. Morphology of peripheral blood and Wintrob’s erythrocyte indices were determined in full blood. Differentiation of leukocytes, thrombocytes and thrombocyte parameters were also determined. Intracellular enzymes (ALT, AST, AP, γ-GT), glucose level, lipidogram, cholesterol and triglyceride contents were assayed in blood serum. Following physicochemical properties of urea were studied: transparency, color, density, pH, as well as presence of glucose, bilirubin, ketones, protein, urobilinogene and nitrites.

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